  /* ============================================================
    FARMSPHERICA — style.css
    White & green base · Glassmorphism · Scroll animations
    Dark mode via [data-theme="dark"] on <html>
    ============================================================ */

  /* ── Fonts ── */
  @import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&family=Inter:wght@400;500;600&display=swap');

  /* ── Design tokens ── */
  :root {
    /* Core palette */
    --green-50:  #f0faf0;
    --green-100: #dcf5dc;
    --green-200: #b8eab8;
    --green-400: #4caf50;
    --green-500: #2e7d32;
    --green-600: #1b5e20;
    --green-700: #144d18;

    /* Neutrals */
    --white:     #ffffff;
    --gray-50:   #f8f9f8;
    --gray-100:  #f0f2f0;
    --gray-200:  #e2e6e2;
    --gray-400:  #9eaa9e;
    --gray-600:  #5a6b5a;
    --gray-800:  #2a342a;
    --gray-900:  #141c14;

    /* Semantic */
    --bg:           var(--white);
    --bg-secondary: var(--gray-50);
    --bg-tertiary:  var(--gray-100);
    --text-primary:   var(--gray-900);
    --text-secondary: var(--gray-600);
    --text-muted:     var(--gray-400);
    --accent:       var(--green-500);
    --accent-light: var(--green-400);
    --accent-soft:  var(--green-50);
    --border:       var(--gray-200);

    /* Glassmorphism */
    --glass-bg:     rgba(255, 255, 255, 0.65);
    --glass-border: rgba(255, 255, 255, 0.8);
    --glass-blur:   blur(18px);
    --glass-shadow: 0 8px 32px rgba(46, 125, 50, 0.08);

    /* Glass cards */
    --card-bg:     rgba(255, 255, 255, 0.7);
    --card-border: rgba(255, 255, 255, 0.9);
    --card-shadow: 0 4px 24px rgba(46, 125, 50, 0.06);

    /* Typography */
    --font-display: 'Plus Jakarta Sans', sans-serif;
    --font-body:    'Inter', sans-serif;

    /* Spacing */
    --space-xs:  0.5rem;
    --space-sm:  1rem;
    --space-md:  1.5rem;
    --space-lg:  2.5rem;
    --space-xl:  4rem;
    --space-2xl: 6rem;
    --space-3xl: 8rem;

    /* Radius */
    --radius-sm:  8px;
    --radius-md:  14px;
    --radius-lg:  22px;
    --radius-xl:  32px;
    --radius-full: 9999px;

    /* Transition */
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);

    /* Nav height */
    --nav-h: 72px;

    /* Semantic custom tokens - Light */
    --success-color: var(--green-500);
    --trend-up-color: var(--green-600);
    --trend-up-bg: var(--accent-soft);
    --trend-stable-color: #1e3a8a;
    --trend-stable-bg: #eff6ff;
    --trend-warn-color: #b45309;
    --trend-warn-bg: #fffbeb;
    --tag-warn-color: #d97706;
    --tag-good-color: var(--green-500);
    --tag-info-color: #2563eb;
    --badge-easy-color: var(--green-600);
    --badge-easy-bg: var(--accent-soft);
    --badge-easy-border: rgba(46,125,50,0.15);
    --badge-medium-color: #b45309;
    --badge-medium-bg: #fffbeb;
    --badge-medium-border: rgba(180,83,9,0.15);
    --badge-hard-color: #b91c1c;
    --badge-hard-bg: #fef2f2;
    --badge-hard-border: rgba(185,28,28,0.15);
    --freshly-badge-color: #6d28d9;
    --freshly-badge-bg: #f5f3ff;
    --freshly-badge-border: rgba(109,40,217,0.15);
    --live-pulse-pill-color: var(--green-600);
    --live-pulse-pill-bg: var(--accent-soft);
    --live-pulse-pill-border: rgba(46,125,50,0.15);
    --diff-easy-color: var(--green-600);
    --diff-easy-bg: var(--accent-soft);
    --diff-medium-color: #b45309;
    --diff-medium-bg: #fffbeb;
    --diff-advanced-color: #b91c1c;
    --diff-advanced-bg: #fef2f2;
  }

  /* ── Dark mode tokens ── */
  [data-theme="dark"] {
    --bg:           #0e1a0e;
    --bg-secondary: #131f13;
    --bg-tertiary:  #1a2b1a;
    --text-primary:   #edf4ed;
    --text-secondary: #8fa88f;
    --text-muted:     #5a7a5a;
    --accent:       var(--green-400);
    --accent-light: #66bb6a;
    --accent-soft:  rgba(76, 175, 80, 0.12);
    --border:       rgba(255,255,255,0.08);

    --glass-bg:     rgba(14, 26, 14, 0.75);
    --glass-border: rgba(76, 175, 80, 0.15);
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);

    --card-bg:     rgba(19, 31, 19, 0.8);
    --card-border: rgba(76, 175, 80, 0.12);
    --card-shadow: 0 4px 24px rgba(0, 0, 0, 0.3);

    /* Semantic custom tokens for Dark */
    --success-color: var(--green-400);
    --trend-up-color: var(--green-200);
    --trend-up-bg: rgba(76, 175, 80, 0.15);
    --trend-stable-color: #93c5fd;
    --trend-stable-bg: rgba(147, 197, 253, 0.15);
    --trend-warn-color: #fde047;
    --trend-warn-bg: rgba(253, 224, 71, 0.15);
    --tag-warn-color: #ffb74d;
    --tag-good-color: var(--green-200);
    --tag-info-color: #90caf9;
    --badge-easy-color: var(--green-200);
    --badge-easy-bg: rgba(76, 175, 80, 0.15);
    --badge-easy-border: rgba(76, 175, 80, 0.3);
    --badge-medium-color: #f5c977;
    --badge-medium-bg: rgba(245, 201, 119, 0.15);
    --badge-medium-border: rgba(245, 201, 119, 0.3);
    --badge-hard-color: #ff8a80;
    --badge-hard-bg: rgba(255, 138, 128, 0.15);
    --badge-hard-border: rgba(255, 138, 128, 0.3);
    --freshly-badge-color: #d8b4fe;
    --freshly-badge-bg: rgba(216, 180, 254, 0.15);
    --freshly-badge-border: rgba(216, 180, 254, 0.3);
    --live-pulse-pill-color: var(--green-200);
    --live-pulse-pill-bg: rgba(76, 175, 80, 0.15);
    --live-pulse-pill-border: rgba(76, 175, 80, 0.3);
    --diff-easy-color: var(--green-200);
    --diff-easy-bg: rgba(76, 175, 80, 0.15);
    --diff-medium-color: #f5c977;
    --diff-medium-bg: rgba(245, 201, 119, 0.15);
    --diff-advanced-color: #ff8a80;
    --diff-advanced-bg: rgba(255, 138, 128, 0.15);
  }

  /* ── Glassmorphic Theme ── */
  [data-theme="glassmorphic"] {
    --bg: #ebf3ef;
    --body-bg: radial-gradient(circle at 10% 20%, rgba(236, 252, 240, 1) 0%, rgba(220, 245, 220, 0.7) 44%, rgba(213, 232, 255, 0.8) 90%);
    --bg-secondary: rgba(255, 255, 255, 0.3);
    --bg-tertiary: rgba(255, 255, 255, 0.45);
    --text-primary: #122c15;
    --text-secondary: #3b5a40;
    --text-muted: #728d77;
    --accent: #1e824c;
    --accent-light: #2ecc71;
    --accent-soft: rgba(30, 130, 76, 0.08);
    --border: rgba(255, 255, 255, 0.4);

    --glass-bg: rgba(255, 255, 255, 0.35);
    --glass-border: rgba(255, 255, 255, 0.55);
    --glass-shadow: 0 8px 32px rgba(31, 38, 135, 0.08);
    --glass-blur: blur(25px);

    --card-bg: rgba(255, 255, 255, 0.4);
    --card-border: rgba(255, 255, 255, 0.6);
    --card-shadow: 0 8px 32px rgba(31, 38, 135, 0.06);

    /* Semantic custom tokens */
    --success-color: #27ae60;
    --trend-up-color: #27ae60;
    --trend-up-bg: rgba(39, 174, 96, 0.12);
    --trend-stable-color: #2980b9;
    --trend-stable-bg: rgba(41, 128, 185, 0.12);
    --trend-warn-color: #e67e22;
    --trend-warn-bg: rgba(230, 126, 34, 0.12);
    --tag-warn-color: #e67e22;
    --tag-good-color: #27ae60;
    --tag-info-color: #2980b9;
    --badge-easy-color: #27ae60;
    --badge-easy-bg: rgba(39, 174, 96, 0.1);
    --badge-easy-border: rgba(39, 174, 96, 0.2);
    --badge-medium-color: #d35400;
    --badge-medium-bg: rgba(211, 84, 0, 0.1);
    --badge-medium-border: rgba(211, 84, 0, 0.2);
    --badge-hard-color: #c0392b;
    --badge-hard-bg: rgba(192, 57, 43, 0.1);
    --badge-hard-border: rgba(192, 57, 43, 0.2);
    --freshly-badge-color: #8e44ad;
    --freshly-badge-bg: rgba(142, 68, 173, 0.1);
    --freshly-badge-border: rgba(142, 68, 173, 0.2);
    --live-pulse-pill-color: #27ae60;
    --live-pulse-pill-bg: rgba(39, 174, 96, 0.1);
    --live-pulse-pill-border: rgba(39, 174, 96, 0.25);
    --diff-easy-color: #27ae60;
    --diff-easy-bg: rgba(39, 174, 96, 0.1);
    --diff-medium-color: #e67e22;
    --diff-medium-bg: rgba(230, 126, 34, 0.1);
    --diff-advanced-color: #c0392b;
    --diff-advanced-bg: rgba(192, 57, 43, 0.1);
  }

  /* ── Cyber Theme ── */
  [data-theme="cyber"] {
    --bg: #09090e;
    --body-bg: radial-gradient(circle at 50% 50%, #110d26 0%, #06050b 100%);
    --bg-secondary: #121024;
    --bg-tertiary: #191638;
    --text-primary: #00ffcc;
    --text-secondary: #e2a9f3;
    --text-muted: #78709e;
    --accent: #ff007f;
    --accent-light: #ff66cc;
    --accent-soft: rgba(255, 0, 127, 0.15);
    --border: rgba(255, 0, 127, 0.2);

    --glass-bg: rgba(18, 16, 36, 0.85);
    --glass-border: rgba(0, 255, 204, 0.35);
    --glass-shadow: 0 8px 32px rgba(255, 0, 127, 0.25);
    --glass-blur: blur(12px);

    --card-bg: rgba(18, 16, 36, 0.75);
    --card-border: rgba(255, 0, 127, 0.25);
    --card-shadow: 0 4px 24px rgba(0, 255, 204, 0.15);

    /* Semantic custom tokens */
    --success-color: #00ffcc;
    --trend-up-color: #00ffcc;
    --trend-up-bg: rgba(0, 255, 204, 0.15);
    --trend-stable-color: #00bcff;
    --trend-stable-bg: rgba(0, 188, 255, 0.15);
    --trend-warn-color: #ff0055;
    --trend-warn-bg: rgba(255, 0, 85, 0.15);
    --tag-warn-color: #ff9900;
    --tag-good-color: #00ffcc;
    --tag-info-color: #00bcff;
    --badge-easy-color: #00ffcc;
    --badge-easy-bg: rgba(0, 255, 204, 0.1);
    --badge-easy-border: rgba(0, 255, 204, 0.3);
    --badge-medium-color: #ff9900;
    --badge-medium-bg: rgba(255, 153, 0, 0.1);
    --badge-medium-border: rgba(255, 153, 0, 0.3);
    --badge-hard-color: #ff0055;
    --badge-hard-bg: rgba(255, 0, 85, 0.1);
    --badge-hard-border: rgba(255, 0, 85, 0.3);
    --freshly-badge-color: #bd00ff;
    --freshly-badge-bg: rgba(189, 0, 255, 0.1);
    --freshly-badge-border: rgba(189, 0, 255, 0.3);
    --live-pulse-pill-color: #00ffcc;
    --live-pulse-pill-bg: rgba(0, 255, 204, 0.1);
    --live-pulse-pill-border: rgba(0, 255, 204, 0.35);
    --diff-easy-color: #00ffcc;
    --diff-easy-bg: rgba(0, 255, 204, 0.1);
    --diff-medium-color: #ff9900;
    --diff-medium-bg: rgba(255, 153, 0, 0.1);
    --diff-advanced-color: #ff0055;
    --diff-advanced-bg: rgba(255, 0, 85, 0.1);
  }

  /* ── Tech Theme ── */
  [data-theme="tech"] {
    --bg: #0b0f19;
    --body-bg: #0b0f19;
    --bg-secondary: #111827;
    --bg-tertiary: #1f2937;
    --text-primary: #38bdf8;
    --text-secondary: #94a3b8;
    --text-muted: #475569;
    --accent: #0284c7;
    --accent-light: #0ea5e9;
    --accent-soft: rgba(14, 165, 233, 0.1);
    --border: #1e293b;

    --glass-bg: rgba(17, 24, 39, 0.85);
    --glass-border: rgba(56, 189, 248, 0.2);
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
    --glass-blur: blur(10px);

    --card-bg: rgba(17, 24, 39, 0.8);
    --card-border: rgba(30, 41, 59, 1);
    --card-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);

    /* Semantic custom tokens */
    --success-color: #38bdf8;
    --trend-up-color: #10b981;
    --trend-up-bg: rgba(16, 185, 129, 0.12);
    --trend-stable-color: #3b82f6;
    --trend-stable-bg: rgba(59, 130, 246, 0.12);
    --trend-warn-color: #f59e0b;
    --trend-warn-bg: rgba(245, 158, 11, 0.12);
    --tag-warn-color: #f59e0b;
    --tag-good-color: #10b981;
    --tag-info-color: #3b82f6;
    --badge-easy-color: #10b981;
    --badge-easy-bg: rgba(16, 185, 129, 0.1);
    --badge-easy-border: rgba(16, 185, 129, 0.2);
    --badge-medium-color: #f59e0b;
    --badge-medium-bg: rgba(245, 158, 11, 0.1);
    --badge-medium-border: rgba(245, 158, 11, 0.2);
    --badge-hard-color: #ef4444;
    --badge-hard-bg: rgba(239, 68, 68, 0.1);
    --badge-hard-border: rgba(239, 68, 68, 0.2);
    --freshly-badge-color: #a855f7;
    --freshly-badge-bg: rgba(168, 85, 247, 0.1);
    --freshly-badge-border: rgba(168, 85, 247, 0.2);
    --live-pulse-pill-color: #10b981;
    --live-pulse-pill-bg: rgba(16, 185, 129, 0.1);
    --live-pulse-pill-border: rgba(16, 185, 129, 0.25);
    --diff-easy-color: #10b981;
    --diff-easy-bg: rgba(16, 185, 129, 0.1);
    --diff-medium-color: #f59e0b;
    --diff-medium-bg: rgba(245, 158, 11, 0.1);
    --diff-advanced-color: #ef4444;
    --diff-advanced-bg: rgba(239, 68, 68, 0.1);
  }

  /* ── Low Contrast Theme ── */
  [data-theme="low-contrast"] {
    --bg: #f2ede4;
    --body-bg: #f2ede4;
    --bg-secondary: #e7e0d4;
    --bg-tertiary: #dbd3c5;
    --text-primary: #4a473f;
    --text-secondary: #6e6a5e;
    --text-muted: #9c9789;
    --accent: #5e725e;
    --accent-light: #708a70;
    --accent-soft: rgba(94, 114, 94, 0.08);
    --border: #d4cbbd;

    --glass-bg: rgba(231, 224, 212, 0.85);
    --glass-border: rgba(94, 114, 94, 0.15);
    --glass-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
    --glass-blur: blur(8px);

    --card-bg: rgba(242, 237, 228, 0.9);
    --card-border: #dbd3c5;
    --card-shadow: 0 2px 12px rgba(0, 0, 0, 0.03);

    /* Semantic custom tokens */
    --success-color: #5e725e;
    --trend-up-color: #5e725e;
    --trend-up-bg: rgba(94, 114, 94, 0.1);
    --trend-stable-color: #667c8c;
    --trend-stable-bg: rgba(102, 124, 140, 0.1);
    --trend-warn-color: #a67c58;
    --trend-warn-bg: rgba(166, 124, 88, 0.1);
    --tag-warn-color: #a67c58;
    --tag-good-color: #5e725e;
    --tag-info-color: #667c8c;
    --badge-easy-color: #5e725e;
    --badge-easy-bg: rgba(94, 114, 94, 0.08);
    --badge-easy-border: rgba(94, 114, 94, 0.15);
    --badge-medium-color: #a67c58;
    --badge-medium-bg: rgba(166, 124, 88, 0.08);
    --badge-medium-border: rgba(166, 124, 88, 0.15);
    --badge-hard-color: #b06060;
    --badge-hard-bg: rgba(176, 96, 96, 0.08);
    --badge-hard-border: rgba(176, 96, 96, 0.15);
    --freshly-badge-color: #8a7090;
    --freshly-badge-bg: rgba(138, 112, 144, 0.08);
    --freshly-badge-border: rgba(138, 112, 144, 0.15);
    --live-pulse-pill-color: #5e725e;
    --live-pulse-pill-bg: rgba(94, 114, 94, 0.08);
    --live-pulse-pill-border: rgba(94, 114, 94, 0.15);
    --diff-easy-color: #5e725e;
    --diff-easy-bg: rgba(94, 114, 94, 0.08);
    --diff-medium-color: #a67c58;
    --diff-medium-bg: rgba(166, 124, 88, 0.08);
    --diff-advanced-color: #b06060;
    --diff-advanced-bg: rgba(176, 96, 96, 0.08);
  }

  /* ── High Contrast Theme ── */
  [data-theme="high-contrast"] {
    --bg: #000000;
    --body-bg: #000000;
    --bg-secondary: #000000;
    --bg-tertiary: #111111;
    --text-primary: #ffffff;
    --text-secondary: #dddddd;
    --text-muted: #aaaaaa;
    --accent: #ffff00;
    --accent-light: #ffff55;
    --accent-soft: rgba(255, 255, 0, 0.2);
    --border: #ffffff;

    --glass-bg: #000000;
    --glass-border: #ffffff;
    --glass-shadow: none;
    --glass-blur: none;

    --card-bg: #000000;
    --card-border: #ffffff;
    --card-shadow: none;

    /* Semantic custom tokens */
    --success-color: #00ff00;
    --trend-up-color: #00ff00;
    --trend-up-bg: #000000;
    --trend-stable-color: #00ffff;
    --trend-stable-bg: #000000;
    --trend-warn-color: #ff00ff;
    --trend-warn-bg: #000000;
    --tag-warn-color: #ff00ff;
    --tag-good-color: #00ff00;
    --tag-info-color: #00ffff;
    --badge-easy-color: #00ff00;
    --badge-easy-bg: #000000;
    --badge-easy-border: #ffffff;
    --badge-medium-color: #ffff00;
    --badge-medium-bg: #000000;
    --badge-medium-border: #ffffff;
    --badge-hard-color: #ff0000;
    --badge-hard-bg: #000000;
    --badge-hard-border: #ffffff;
    --freshly-badge-color: #ff00ff;
    --freshly-badge-bg: #000000;
    --freshly-badge-border: #ffffff;
    --live-pulse-pill-color: #00ff00;
    --live-pulse-pill-bg: #000000;
    --live-pulse-pill-border: #ffffff;
    --diff-easy-color: #00ff00;
    --diff-easy-bg: #000000;
    --diff-medium-color: #ffff00;
    --diff-medium-bg: #000000;
    --diff-advanced-color: #ff0000;
    --diff-advanced-bg: #000000;
  }

  /* ── Sunset Theme ── */
  [data-theme="sunset"] {
    --bg: #2b1b35;
    --body-bg: linear-gradient(135deg, #1b0a22 0%, #3a152d 50%, #5d2b1f 100%);
    --bg-secondary: #3b1e35;
    --bg-tertiary: #4c2842;
    --text-primary: #ffd3b6;
    --text-secondary: #f3a8ab;
    --text-muted: #b57c91;
    --accent: #ff8b6a;
    --accent-light: #ffa38a;
    --accent-soft: rgba(255, 139, 106, 0.15);
    --border: rgba(255, 139, 106, 0.25);

    --glass-bg: rgba(43, 27, 53, 0.85);
    --glass-border: rgba(255, 139, 106, 0.35);
    --glass-shadow: 0 8px 32px rgba(27, 10, 34, 0.5);
    --glass-blur: blur(14px);

    --card-bg: rgba(59, 30, 53, 0.8);
    --card-border: rgba(255, 139, 106, 0.25);
    --card-shadow: 0 4px 24px rgba(0, 0, 0, 0.3);

    /* Semantic custom tokens */
    --success-color: #ff8b6a;
    --trend-up-color: #ffb37e;
    --trend-up-bg: rgba(255, 179, 126, 0.15);
    --trend-stable-color: #d192ca;
    --trend-stable-bg: rgba(209, 146, 202, 0.15);
    --trend-warn-color: #ff6a6a;
    --trend-warn-bg: rgba(255, 106, 106, 0.15);
    --tag-warn-color: #ff6a6a;
    --tag-good-color: #ffb37e;
    --tag-info-color: #d192ca;
    --badge-easy-color: #ffb37e;
    --badge-easy-bg: rgba(255, 179, 126, 0.12);
    --badge-easy-border: rgba(255, 179, 126, 0.25);
    --badge-medium-color: #ff8b6a;
    --badge-medium-bg: rgba(255, 139, 106, 0.12);
    --badge-medium-border: rgba(255, 139, 106, 0.25);
    --badge-hard-color: #ff6a6a;
    --badge-hard-bg: rgba(255, 106, 106, 0.12);
    --badge-hard-border: rgba(255, 106, 106, 0.25);
    --freshly-badge-color: #d192ca;
    --freshly-badge-bg: rgba(209, 146, 202, 0.12);
    --freshly-badge-border: rgba(209, 146, 202, 0.25);
    --live-pulse-pill-color: #ffb37e;
    --live-pulse-pill-bg: rgba(255, 179, 126, 0.12);
    --live-pulse-pill-border: rgba(255, 179, 126, 0.25);
    --diff-easy-color: #ffb37e;
    --diff-easy-bg: rgba(255, 179, 126, 0.12);
    --diff-medium-color: #ff8b6a;
    --diff-medium-bg: rgba(255, 139, 106, 0.12);
    --diff-advanced-color: #ff6a6a;
    --diff-advanced-bg: rgba(255, 106, 106, 0.12);
  }

  /* ── Nexus Theme ── */
  /* ── Nexus Theme ── */
  [data-theme="nexus"] {
    --bg: rgba(26, 24, 22, 0.4);
    --body-bg: #11100e;
    --bg-secondary: rgba(36, 32, 29, 0.5);
    --bg-tertiary: rgba(51, 46, 41, 0.6);
    --text-primary: #e8d8c8;
    --text-secondary: #bfaea0;
    --text-muted: #73675f;
    --accent: #e0a96d;
    --accent-light: #f5c493;
    --accent-soft: rgba(224, 169, 109, 0.08);
    --border: rgba(224, 169, 109, 0.3);

    --glass-bg: rgba(22, 20, 18, 0.5);
    --glass-border: rgba(224, 169, 109, 0.35);
    --glass-shadow: 0 8px 32px rgba(224, 169, 109, 0.05), 0 0 15px rgba(224, 169, 109, 0.1);
    --glass-blur: blur(16px);

    --card-bg: rgba(26, 24, 22, 0.35);
    --card-border: rgba(224, 169, 109, 0.25);
    --card-shadow: 0 4px 24px rgba(0, 0, 0, 0.35);

    /* Semantic custom tokens */
    --success-color: #9db299;
    --trend-up-color: #9db299;
    --trend-up-bg: rgba(157, 178, 153, 0.12);
    --trend-stable-color: #8fa89b;
    --trend-stable-bg: rgba(143, 168, 155, 0.12);
    --trend-warn-color: #dca682;
    --trend-warn-bg: rgba(220, 166, 130, 0.12);
    --tag-warn-color: #dca682;
    --tag-good-color: #9db299;
    --tag-info-color: #8fa89b;
    --badge-easy-color: #9db299;
    --badge-easy-bg: rgba(157, 178, 153, 0.08);
    --badge-easy-border: rgba(157, 178, 153, 0.2);
    --badge-medium-color: #dca682;
    --badge-medium-bg: rgba(220, 166, 130, 0.08);
    --badge-medium-border: rgba(220, 166, 130, 0.2);
    --badge-hard-color: #c87a7a;
    --badge-hard-bg: rgba(200, 122, 122, 0.08);
    --badge-hard-border: rgba(200, 122, 122, 0.25);
    --freshly-badge-color: #a99cc8;
    --freshly-badge-bg: rgba(169, 156, 200, 0.08);
    --freshly-badge-border: rgba(169, 156, 200, 0.2);
    --live-pulse-pill-color: #9db299;
    --live-pulse-pill-bg: rgba(157, 178, 153, 0.08);
    --live-pulse-pill-border: rgba(157, 178, 153, 0.25);
    --diff-easy-color: #9db299;
    --diff-easy-bg: rgba(157, 178, 153, 0.08);
    --diff-medium-color: #dca682;
    --diff-medium-bg: rgba(220, 166, 130, 0.08);
    --diff-advanced-color: #c87a7a;
    --diff-advanced-bg: rgba(200, 122, 122, 0.08);
  }

  /* Custom styling details to align with the Nexus Terminal look */
  [data-theme="nexus"] body::before {
    content: '';
    position: fixed;
    inset: 0;
    background-image: linear-gradient(135deg, rgba(22, 20, 18, 0.85), rgba(12, 11, 10, 0.95)),
                      url('https://images.unsplash.com/photo-1518531933037-91b2f5f229cc?auto=format&fit=crop&q=80&w=1920');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    z-index: -2;
  }

  [data-theme="nexus"] body::after {
    content: '';
    position: fixed;
    inset: 0;
    background: linear-gradient(rgba(224, 169, 109, 0.02) 50%, rgba(0, 0, 0, 0.08) 50%);
    background-size: 100% 4px;
    z-index: -1;
    pointer-events: none;
  }

  [data-theme="nexus"] h1,
  [data-theme="nexus"] h2,
  [data-theme="nexus"] h3,
  [data-theme="nexus"] h4,
  [data-theme="nexus"] h5,
  [data-theme="nexus"] h6,
  [data-theme="nexus"] .nav-links a,
  [data-theme="nexus"] .badge,
  [data-theme="nexus"] .btn,
  [data-theme="nexus"] .stat-card-title,
  [data-theme="nexus"] .crop-name {
    text-transform: uppercase;
    font-family: monospace, 'Courier New', var(--font-display);
    letter-spacing: 0.1em;
  }

  /* Frosted Glass UI panels */
  [data-theme="nexus"] .card,
  [data-theme="nexus"] .stat-card,
  [data-theme="nexus"] .crop-card,
  [data-theme="nexus"] .panel,
  [data-theme="nexus"] .hero-stat,
  [data-theme="nexus"] .about-card,
  [data-theme="nexus"] .auth-tabs,
  [data-theme="nexus"] .admin-plant-edit-row {
    background: rgba(22, 20, 18, 0.45) !important;
    border: 1px solid rgba(224, 169, 109, 0.25) !important;
    backdrop-filter: blur(14px) !important;
    -webkit-backdrop-filter: blur(14px) !important;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3) !important;
    position: relative;
    border-radius: var(--radius-sm) !important; /* Monospace blocky feel */
  }

  /* Decorative terminal glowing corner brackets for UI elements */
  [data-theme="nexus"] .card::before,
  [data-theme="nexus"] .stat-card::before,
  [data-theme="nexus"] .crop-card::before,
  [data-theme="nexus"] .about-card::before {
    content: '';
    position: absolute;
    top: -1px; left: -1px;
    width: 8px; height: 8px;
    border-top: 2px solid var(--accent);
    border-left: 2px solid var(--accent);
    pointer-events: none;
    z-index: 5;
  }

  [data-theme="nexus"] .card::after,
  [data-theme="nexus"] .stat-card::after,
  [data-theme="nexus"] .crop-card::after,
  [data-theme="nexus"] .about-card::after {
    content: '';
    position: absolute;
    bottom: -1px; right: -1px;
    width: 8px; height: 8px;
    border-bottom: 2px solid var(--accent);
    border-right: 2px solid var(--accent);
    pointer-events: none;
    z-index: 5;
  }

  /* Monospace glowing inputs */
  [data-theme="nexus"] input,
  [data-theme="nexus"] select,
  [data-theme="nexus"] textarea,
  [data-theme="nexus"] .field-input {
    background: rgba(12, 11, 10, 0.6) !important;
    border: 1px solid rgba(224, 169, 109, 0.3) !important;
    color: var(--text-primary) !important;
    font-family: monospace, var(--font-body) !important;
    border-radius: 4px !important;
    box-shadow: inset 0 0 6px rgba(224, 169, 109, 0.05);
  }

  [data-theme="nexus"] input:focus,
  [data-theme="nexus"] select:focus,
  [data-theme="nexus"] textarea:focus,
  [data-theme="nexus"] .field-input:focus {
    border-color: var(--accent) !important;
    box-shadow: 0 0 10px rgba(224, 169, 109, 0.25), inset 0 0 6px rgba(224, 169, 109, 0.1) !important;
  }

  /* HUD tactical buttons style */
  [data-theme="nexus"] .btn,
  [data-theme="nexus"] .theme-toggle-btn {
    border: 1px solid var(--accent) !important;
    background: rgba(224, 169, 109, 0.05) !important;
    color: var(--accent) !important;
    box-shadow: 0 0 8px rgba(224, 169, 109, 0.08) !important;
    text-shadow: 0 0 3px rgba(224, 169, 109, 0.2) !important;
    border-radius: 4px !important;
  }

  [data-theme="nexus"] .btn:hover,
  [data-theme="nexus"] .theme-toggle-btn:hover {
    background: var(--accent) !important;
    color: #11100e !important;
    box-shadow: 0 0 15px rgba(224, 169, 109, 0.35) !important;
    text-shadow: none !important;
  }

  /* Badge overlays */
  [data-theme="nexus"] .badge,
  [data-theme="nexus"] .status-pill,
  [data-theme="nexus"] .crop-badge,
  [data-theme="nexus"] .crop-badge-easy,
  [data-theme="nexus"] .crop-badge-medium,
  [data-theme="nexus"] .crop-badge-hard,
  [data-theme="nexus"] .freshly-badge,
  [data-theme="nexus"] .diff-pill {
    border: 1px solid var(--border) !important;
    background: rgba(224, 169, 109, 0.08) !important;
    color: var(--text-primary) !important;
    text-shadow: 0 0 3px rgba(224, 169, 109, 0.2);
    border-radius: 4px !important;
  }

  /* Charts and status displays */
  [data-theme="nexus"] .chart-bar-fill {
    background: linear-gradient(180deg, var(--accent), rgba(224, 169, 109, 0.15)) !important;
    box-shadow: 0 0 8px rgba(224, 169, 109, 0.25);
    border-radius: 2px 2px 0 0;
  }

  [data-theme="nexus"] .chart-grid-line,
  [data-theme="nexus"] .grid-line {
    border-color: rgba(224, 169, 109, 0.15) !important;
  }

  /* Nav header glassmorphic panel overlay */
  [data-theme="nexus"] .site-header {
    background: rgba(22, 20, 18, 0.6) !important;
    border-bottom: 1px solid rgba(224, 169, 109, 0.3) !important;
    backdrop-filter: blur(16px) !important;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
  }

  /* Monospace tactical scrollbars */
  [data-theme="nexus"] ::-webkit-scrollbar {
    width: 6px;
    height: 6px;
  }
  [data-theme="nexus"] ::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.4);
  }
  [data-theme="nexus"] ::-webkit-scrollbar-thumb {
    background: rgba(224, 169, 109, 0.35);
    border-radius: 3px;
  }
  [data-theme="nexus"] ::-webkit-scrollbar-thumb:hover {
    background: var(--accent);
  }

  /* ── Reset ── */
  *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
  html { scroll-behavior: smooth; font-size: 16px; }
  body {
    font-family: var(--font-body);
    background: var(--body-bg, var(--bg));
    background-attachment: fixed;
    color: var(--text-primary);
    transition: background var(--transition), color var(--transition);
    overflow-x: hidden;
    line-height: 1.6;
  }
  img { max-width: 100%; display: block; }
  a { color: inherit; text-decoration: none; }
  button { cursor: pointer; border: none; background: none; font-family: inherit; }
  ul, ol { list-style: none; }

  /* ── Typography scale ── */
  .display-xl {
    font-family: var(--font-display);
    font-size: clamp(3rem, 7vw, 5.5rem);
    font-weight: 800;
    line-height: 1.05;
    letter-spacing: -0.03em;
    color: var(--text-primary);
  }
  .display-lg {
    font-family: var(--font-display);
    font-size: clamp(2.2rem, 4.5vw, 3.6rem);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.025em;
    color: var(--text-primary);
  }
  .display-md {
    font-family: var(--font-display);
    font-size: clamp(1.5rem, 3vw, 2.2rem);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
    color: var(--text-primary);
  }
  .body-lg {
    font-size: clamp(1rem, 1.6vw, 1.2rem);
    line-height: 1.7;
    color: var(--text-secondary);
    font-weight: 400;
  }
  .body-sm {
    font-size: 0.9rem;
    line-height: 1.6;
    color: var(--text-secondary);
  }
  .label {
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--accent);
  }
  .accent-text { color: var(--accent); }

  /* ── Layout ── */
  .container {
    width: 100%;
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
  }

  section {
    padding: var(--space-3xl) 0;
  }

  /* ── Glassmorphism utilities ── */
  .glass {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    box-shadow: var(--glass-shadow);
  }
  .glass-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: var(--card-shadow);
    border-radius: var(--radius-lg);
  }

  /* ── Buttons ── */
  .btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.8rem 1.8rem;
    border-radius: var(--radius-full);
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 0.95rem;
    transition: all var(--transition);
  }
  .btn-primary {
    background: var(--accent);
    color: #fff;
    box-shadow: 0 4px 18px rgba(46, 125, 50, 0.35);
  }
  .btn-primary:hover {
    background: var(--green-600);
    transform: translateY(-2px);
    box-shadow: 0 8px 28px rgba(46, 125, 50, 0.4);
  }
  .btn-ghost {
    border: 1.5px solid var(--border);
    color: var(--text-primary);
    background: transparent;
  }
  .btn-ghost:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: var(--accent-soft);
  }
  .btn-secondary {
    border: 1.5px solid var(--border);
    color: var(--text-primary);
    background: var(--bg-secondary);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
  }
  .btn-secondary:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: var(--accent-soft);
    transform: translateY(-2px);
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.08);
  }

  /* ── Badge / tag ── */
  .badge {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.35rem 0.9rem;
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 600;
    background: var(--accent-soft);
    color: var(--green-600);
    border: 1px solid rgba(46,125,50,0.15);
  }
  [data-theme="dark"] .badge {
    color: var(--green-200);
  }

  /* ── Dot decoration ── */
  .dot {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent);
  }

  /* ═══════════════════════════════════════
    HEADER / NAV
  ═══════════════════════════════════════ */
  .site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    height: var(--nav-h);
    display: flex;
    align-items: center;
    background: var(--glass-bg);
    border-bottom: 1px solid var(--glass-border);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    transition: background var(--transition), border-color var(--transition), box-shadow var(--transition);
    border-bottom: 2px solid rgba(46, 125, 50, 0.25);
  }
  .site-header.scrolled {
    box-shadow: 0 4px 24px rgba(46,125,50,0.1);
  }
  .nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
  }
  .nav-logo {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-family: var(--font-display);
    font-weight: 800;
    font-size: 1.2rem;
    color: var(--text-primary);
    letter-spacing: -0.02em;
  }
  .nav-logo-icon {
    width: 34px;
    height: 34px;
    background: var(--accent);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
  }
  .nav-logo-icon svg {
    width: 20px;
    height: 20px;
    fill: #fff;
  }
  .nav-logo span { color: var(--accent); }

  .nav-links {
    display: flex;
    align-items: center;
    gap: 0.25rem;
  }
  .nav-links a {
    padding: 0.45rem 0.9rem;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: all var(--transition);
  }
  .nav-links a:hover,
  .nav-links a.active {
    color: var(--accent);
    background: var(--accent-soft);
  }

  .nav-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
  }

  /* Multi-theme Selector Dropdown styling */
  .theme-select-container {
    position: relative;
    display: inline-block;
  }
  
  .theme-toggle-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--bg-secondary);
    border: 1.5px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.15rem;
    transition: all var(--transition);
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
  }
  
  .theme-toggle-btn:hover {
    transform: translateY(-1px);
    border-color: var(--accent);
    background: var(--bg-tertiary);
  }
  
  .theme-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-radius: var(--radius-md);
    padding: 0.5rem;
    min-width: 170px;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: 4px;
    opacity: 0;
    transform: translateY(-10px);
    pointer-events: none;
    transition: opacity var(--transition), transform var(--transition);
  }
  
  .theme-dropdown.show {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }
  
  .theme-option {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 0.5rem 0.75rem;
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 0.88rem;
    font-weight: 600;
    transition: all var(--transition);
    text-align: left;
    width: 100%;
    border: none;
    background: none;
    cursor: pointer;
  }
  
  .theme-option:hover {
    background: var(--accent-soft);
    color: var(--accent);
    transform: translateX(4px);
  }
  
  .theme-option.active {
    background: var(--accent-soft);
    color: var(--accent);
    box-shadow: inset 0 0 0 1px var(--accent-light);
  }

  /* Hamburger */
  .nav-hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 6px;
    border-radius: var(--radius-sm);
  }
  .nav-hamburger span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all var(--transition);
  }
  .nav-hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-hamburger.open span:nth-child(2) { opacity: 0; }
  .nav-hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

  /* Mobile nav */
  .nav-mobile {
    display: none;
    position: fixed;
    top: var(--nav-h);
    left: 0;
    right: 0;
    z-index: 99;
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-bottom: 1px solid var(--glass-border);
    padding: var(--space-sm) var(--space-lg);
    flex-direction: column;
    gap: 0.25rem;
  }
  .nav-mobile.open { display: flex; }
  .nav-mobile a {
    padding: 0.7rem 0.9rem;
    border-radius: var(--radius-sm);
    font-weight: 500;
    color: var(--text-secondary);
    transition: all var(--transition);
  }
  .nav-mobile a:hover { color: var(--accent); background: var(--accent-soft); }

  /* ═══════════════════════════════════════
    SCROLL ANIMATIONS
  ═══════════════════════════════════════ */
  .reveal {
    opacity: 0;
    transform: translateY(32px);
    transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1),
                transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
  }
  .reveal.visible {
    opacity: 1;
    transform: translateY(0);
  }
  .reveal-left {
    opacity: 0;
    transform: translateX(-32px);
    transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1),
                transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
  }
  .reveal-left.visible {
    opacity: 1;
    transform: translateX(0);
  }
  .reveal-right {
    opacity: 0;
    transform: translateX(32px);
    transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1),
                transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
  }
  .reveal-right.visible {
    opacity: 1;
    transform: translateX(0);
  }
  .reveal-scale {
    opacity: 0;
    transform: scale(0.94);
    transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1),
                transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  }
  .reveal-scale.visible {
    opacity: 1;
    transform: scale(1);
  }

  /* Stagger delays */
  .delay-1 { transition-delay: 0.1s; }
  .delay-2 { transition-delay: 0.2s; }
  .delay-3 { transition-delay: 0.3s; }
  .delay-4 { transition-delay: 0.4s; }
  .delay-5 { transition-delay: 0.5s; }
  .delay-6 { transition-delay: 0.6s; }

  /* ═══════════════════════════════════════
    HERO SECTION
  ═══════════════════════════════════════ */
  .hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: var(--nav-h);
    position: relative;
    overflow: hidden;
    background: var(--bg);
  }

  /* Soft radial glow behind hero */
  .hero::before {
    content: '';
    position: absolute;
    top: -10%;
    right: -5%;
    width: 60vw;
    height: 70vh;
    background: radial-gradient(ellipse at center, rgba(76,175,80,0.13) 0%, transparent 70%);
    pointer-events: none;
  }
  .hero::after {
    content: '';
    position: absolute;
    bottom: -5%;
    left: -5%;
    width: 40vw;
    height: 50vh;
    background: radial-gradient(ellipse at center, rgba(46,125,50,0.08) 0%, transparent 70%);
    pointer-events: none;
  }

  .hero-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: var(--space-xl);
    position: relative;
    z-index: 1;
  }
  .hero-content { display: flex; flex-direction: column; gap: var(--space-md); }

  .hero-eyebrow {
    display: flex;
    align-items: center;
    gap: 0.6rem;
  }

  .hero-headline { display: flex; flex-direction: column; gap: 0.2rem; }
  .hero-headline .line-green { color: var(--accent); }

  .hero-ctas {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    flex-wrap: wrap;
    margin-top: 0.5rem;
  }

  .hero-stats {
    display: flex;
    gap: var(--space-lg);
    padding-top: var(--space-sm);
    border-top: 1px solid var(--border);
    margin-top: 0.5rem;
    flex-wrap: wrap;
  }
  .hero-stat-item { display: flex; flex-direction: column; gap: 0.2rem; }
  .hero-stat-num {
    font-family: var(--font-display);
    font-size: 1.6rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    color: var(--text-primary);
  }
  .hero-stat-label { font-size: 0.82rem; color: var(--text-muted); font-weight: 500; }

  /* Hero visual (right column) */
  .hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
  }

  .hero-card-wrap {
    position: relative;
    width: 100%;
    max-width: 420px;
  }

  /* Main glass card in hero */
  .hero-glass-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 20px 60px rgba(46,125,50,0.12), 0 4px 16px rgba(0,0,0,0.06);
    border-radius: var(--radius-xl);
    padding: var(--space-lg);
    position: relative;
    z-index: 2;
  }

  .hero-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-md);
  }
  .hero-card-title {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
  }
  .status-pill {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--green-600);
    background: var(--green-50);
    border: 1px solid rgba(46,125,50,0.15);
    padding: 0.3rem 0.7rem;
    border-radius: var(--radius-full);
  }
  [data-theme="dark"] .status-pill {
    color: var(--green-200);
    background: rgba(76,175,80,0.1);
  }
  .status-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--green-400);
    animation: blink 2s ease-in-out infinite;
  }
  @keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
  }

  .hero-mini-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
  }
  .mini-stat-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: var(--space-sm);
    transition: all var(--transition);
  }
  .mini-stat-card:hover {
    border-color: rgba(46,125,50,0.3);
    transform: translateY(-2px);
  }
  .mini-stat-label {
    font-size: 0.73rem;
    color: var(--text-muted);
    font-weight: 500;
    margin-bottom: 0.3rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
  }
  .mini-stat-value {
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: -0.02em;
  }
  .mini-stat-unit {
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-muted);
    margin-left: 0.2rem;
  }
  .mini-stat-delta {
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--green-500);
    margin-top: 0.2rem;
  }
  [data-theme="dark"] .mini-stat-delta { color: var(--green-200); }

  /* Plant progress bars */
  .plant-bars { display: flex; flex-direction: column; gap: 0.75rem; }
  .plant-row {
    display: flex;
    align-items: center;
    gap: 0.75rem;
  }
  .plant-name {
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--text-secondary);
    min-width: 80px;
  }
  .plant-track {
    flex: 1;
    height: 6px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    overflow: hidden;
  }
  .plant-fill {
    height: 100%;
    border-radius: var(--radius-full);
    background: linear-gradient(90deg, var(--green-400), var(--green-500));
    transition: width 1s cubic-bezier(0.4,0,0.2,1);
  }
  .plant-pct {
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--text-muted);
    min-width: 32px;
    text-align: right;
  }

  /* Floating accent badges around hero card */
  .float-badge {
    position: absolute;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 600;
    white-space: nowrap;
    animation: float 4s ease-in-out infinite;
    z-index: 3;
  }
  .float-badge-1 {
    top: -18px;
    right: -20px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    backdrop-filter: blur(12px);
    color: var(--text-primary);
    box-shadow: var(--card-shadow);
    animation-delay: 0s;
  }
  .float-badge-2 {
    bottom: 30px;
    left: -28px;
    background: var(--accent);
    color: #fff;
    box-shadow: 0 4px 16px rgba(46,125,50,0.35);
    animation-delay: 1.5s;
  }
  @keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-8px); }
  }

  /* ═══════════════════════════════════════
    ABOUT / WHAT IS HYDROPONICS
  ═══════════════════════════════════════ */
  .about-section {
    background: var(--bg-secondary);
    position: relative;
    overflow: hidden;
  }
  .about-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at 80% 50%, rgba(76,175,80,0.07) 0%, transparent 60%);
    pointer-events: none;
  }
  .about-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: var(--space-xl);
    position: relative;
    z-index: 1;
  }
  .about-content { display: flex; flex-direction: column; gap: var(--space-md); }

  .about-points { display: flex; flex-direction: column; gap: var(--space-sm); }
  .about-point {
    display: flex;
    align-items: flex-start;
    gap: var(--space-sm);
    padding: var(--space-sm);
    border-radius: var(--radius-md);
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    backdrop-filter: blur(8px);
    transition: all var(--transition);
  }
  .about-point:hover {
    border-color: rgba(46,125,50,0.25);
    transform: translateX(4px);
    box-shadow: var(--card-shadow);
  }
  .about-point-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    background: var(--accent-soft);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    flex-shrink: 0;
  }
  .about-point-text { display: flex; flex-direction: column; gap: 0.2rem; }
  .about-point-title {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--text-primary);
  }

  /* Big quote card on right */
  .about-visual { display: flex; flex-direction: column; gap: var(--space-md); }
  .quote-card {
    padding: var(--space-lg);
    border-radius: var(--radius-xl);
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    backdrop-filter: blur(16px);
    box-shadow: 0 12px 40px rgba(46,125,50,0.1);
  }
  .quote-mark {
    font-size: 4rem;
    line-height: 0.8;
    color: var(--accent);
    font-family: var(--font-display);
    font-weight: 800;
    margin-bottom: var(--space-sm);
    opacity: 0.5;
  }
  .quote-text {
    font-family: var(--font-display);
    font-size: clamp(1.1rem, 2vw, 1.5rem);
    font-weight: 700;
    line-height: 1.4;
    letter-spacing: -0.02em;
    color: var(--text-primary);
    margin-bottom: var(--space-sm);
  }
  .quote-author {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 500;
  }

  /* Small stat chips */
  .stat-chips {
    display: flex;
    gap: var(--space-sm);
    flex-wrap: wrap;
  }
  .stat-chip {
    padding: var(--space-sm) var(--space-md);
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-lg);
    text-align: center;
    flex: 1;
    min-width: 120px;
    transition: all var(--transition);
  }
  .stat-chip:hover {
    border-color: rgba(46,125,50,0.3);
    transform: translateY(-3px);
    box-shadow: var(--card-shadow);
  }
  .stat-chip-num {
    font-family: var(--font-display);
    font-size: 1.6rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    color: var(--accent);
  }
  .stat-chip-label {
    font-size: 0.78rem;
    color: var(--text-muted);
    font-weight: 500;
  }

  /* ═══════════════════════════════════════
    HOW IT WORKS
  ═══════════════════════════════════════ */
  .how-section { background: var(--bg); }
  .section-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto var(--space-xl);
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
  }

  .steps-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
    position: relative;
  }

  /* Connector line between steps */
  .steps-grid::before {
    content: '';
    position: absolute;
    top: 48px;
    left: calc(16.67% + 24px);
    right: calc(16.67% + 24px);
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border), var(--border), transparent);
    pointer-events: none;
  }

  .step-card {
    padding: var(--space-lg);
    border-radius: var(--radius-xl);
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    backdrop-filter: blur(12px);
    box-shadow: var(--card-shadow);
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    transition: all var(--transition);
    position: relative;
  }
  .step-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 48px rgba(46,125,50,0.14);
    border-color: rgba(46,125,50,0.25);
  }
  .step-icon-wrap {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    background: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    margin-bottom: 0.5rem;
    box-shadow: 0 6px 20px rgba(46,125,50,0.3);
  }
  .step-num {
    font-family: var(--font-display);
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--accent);
    letter-spacing: 0.1em;
  }
  .step-title {
    font-family: var(--font-display);
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.25;
  }

  /* ═══════════════════════════════════════
    BENEFITS GRID
  ═══════════════════════════════════════ */
  .benefits-section {
    background: var(--bg-secondary);
    position: relative;
    overflow: hidden;
  }
  .benefits-section::after {
    content: '';
    position: absolute;
    bottom: -20%;
    left: 50%;
    transform: translateX(-50%);
    width: 80vw;
    height: 40vh;
    background: radial-gradient(ellipse at center, rgba(76,175,80,0.08) 0%, transparent 70%);
    pointer-events: none;
  }
  .benefits-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
  }
  .benefit-card {
    padding: var(--space-lg);
    border-radius: var(--radius-xl);
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    backdrop-filter: blur(16px);
    box-shadow: var(--card-shadow);
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
    transition: all var(--transition);
  }
  .benefit-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 48px rgba(46,125,50,0.12);
    border-color: rgba(46,125,50,0.25);
  }
  .benefit-card.featured {
    grid-column: span 2;
    background: linear-gradient(135deg, rgba(46,125,50,0.08) 0%, var(--card-bg) 60%);
    border-color: rgba(46,125,50,0.2);
  }
  .benefit-icon {
    width: 52px;
    height: 52px;
    border-radius: var(--radius-md);
    background: var(--accent-soft);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    flex-shrink: 0;
    transition: all var(--transition);
  }
  .benefit-card:hover .benefit-icon {
    background: var(--accent);
  }
  .benefit-body { flex: 1; }
  .benefit-title {
    font-family: var(--font-display);
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.4rem;
  }
  .benefit-big-num {
    font-family: var(--font-display);
    font-size: 2.4rem;
    font-weight: 800;
    letter-spacing: -0.04em;
    color: var(--accent);
    line-height: 1;
    margin-bottom: 0.4rem;
  }
  .benefit-body .body-sm { margin-top: 0.2rem; }

  /* ═══════════════════════════════════════
    TESTIMONIALS
  ═══════════════════════════════════════ */
  .testimonials-section { background: var(--bg); }
  .testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
  }
  .testimonial-card {
    padding: var(--space-lg);
    border-radius: var(--radius-xl);
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    backdrop-filter: blur(12px);
    box-shadow: var(--card-shadow);
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    transition: all var(--transition);
  }
  .testimonial-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(46,125,50,0.12);
    border-color: rgba(46,125,50,0.2);
  }
  .testimonial-stars { color: #f5a623; font-size: 0.9rem; letter-spacing: 0.1em; }
  .testimonial-text {
    font-size: 0.95rem;
    line-height: 1.65;
    color: var(--text-secondary);
    flex: 1;
  }
  .testimonial-author { display: flex; align-items: center; gap: 0.75rem; }
  .author-avatar {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-weight: 800;
    font-size: 0.85rem;
    color: #fff;
    background: var(--accent);
    flex-shrink: 0;
  }
  .author-name {
    font-size: 0.88rem;
    font-weight: 700;
    color: var(--text-primary);
  }
  .author-role { font-size: 0.78rem; color: var(--text-muted); }

  /* ═══════════════════════════════════════
    CTA BAND
  ═══════════════════════════════════════ */
  .cta-section {
    padding: var(--space-xl) 0;
    background: var(--bg-secondary);
  }
  .cta-band {
    padding: var(--space-xl) var(--space-xl);
    border-radius: var(--radius-xl);
    background: linear-gradient(135deg, var(--green-500) 0%, var(--green-600) 100%);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-lg);
    flex-wrap: wrap;
    position: relative;
    overflow: hidden;
  }
  .cta-band::before {
    content: '';
    position: absolute;
    top: -40%;
    right: -5%;
    width: 40%;
    height: 200%;
    background: radial-gradient(ellipse, rgba(255,255,255,0.1) 0%, transparent 70%);
    pointer-events: none;
  }
  .cta-band-text { display: flex; flex-direction: column; gap: 0.5rem; }
  .cta-band-title {
    font-family: var(--font-display);
    font-size: clamp(1.5rem, 3vw, 2.2rem);
    font-weight: 800;
    color: #fff;
    letter-spacing: -0.02em;
    line-height: 1.15;
  }
  .cta-band-sub { font-size: 1rem; color: rgba(255,255,255,0.8); }
  .btn-cta-white {
    background: #fff;
    color: var(--green-600);
    font-weight: 700;
    padding: 0.9rem 2rem;
    border-radius: var(--radius-full);
    font-family: var(--font-display);
    font-size: 0.95rem;
    white-space: nowrap;
    transition: all var(--transition);
    box-shadow: 0 4px 16px rgba(0,0,0,0.15);
  }
  .btn-cta-white:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 28px rgba(0,0,0,0.2);
  }

  /* ═══════════════════════════════════════
    FOOTER
  ═══════════════════════════════════════ */
  .site-footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    padding: var(--space-xl) 0 var(--space-lg);
  }
  .footer-inner {
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
  }
  .footer-top {
    display: grid;
    grid-template-columns: 1.8fr 1fr 1fr 1fr;
    gap: var(--space-xl);
    margin-bottom: var(--space-xl);
  }
  .footer-brand { display: flex; flex-direction: column; gap: var(--space-sm); }
  .footer-logo {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-family: var(--font-display);
    font-weight: 800;
    font-size: 1.1rem;
    letter-spacing: -0.02em;
    color: var(--text-primary);
  }
  .footer-logo-icon {
    width: 30px;
    height: 30px;
    background: var(--accent);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .footer-logo-icon svg { width: 18px; height: 18px; fill: #fff; }
  .footer-tagline { font-size: 0.88rem; color: var(--text-secondary); line-height: 1.6; max-width: 260px; }
  .footer-col-title {
    font-family: var(--font-display);
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-primary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-sm);
  }
  .footer-links { display: flex; flex-direction: column; gap: 0.5rem; }
  .footer-links a {
    font-size: 0.88rem;
    color: var(--text-secondary);
    transition: color var(--transition);
  }
  .footer-links a:hover { color: var(--accent); }

  .footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: var(--space-md);
    border-top: 1px solid var(--border);
    flex-wrap: wrap;
    gap: var(--space-sm);
  }
  .footer-copy { font-size: 0.82rem; color: var(--text-muted); }
  .footer-socials { display: flex; gap: 0.5rem; }
  .social-btn {
    width: 34px;
    height: 34px;
    border-radius: var(--radius-sm);
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    color: var(--text-secondary);
    transition: all var(--transition);
  }
  .social-btn:hover {
    background: var(--accent-soft);
    border-color: rgba(46,125,50,0.3);
    color: var(--accent);
    transform: translateY(-2px);
  }

  /* ═══════════════════════════════════════
    PAGE HEADER (inner pages)
  ═══════════════════════════════════════ */
  .page-hero {
    padding-top: calc(var(--nav-h) + var(--space-xl));
    padding-bottom: var(--space-xl);
    background: var(--bg-secondary);
    text-align: center;
    position: relative;
    overflow: hidden;
  }
  .page-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at 50% 0%, rgba(76,175,80,0.1) 0%, transparent 60%);
    pointer-events: none;
  }
  .page-hero-inner {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
  }
  .page-hero-title { max-width: 640px; }
  .page-hero-sub { max-width: 500px; text-align: center; }

  /* ═══════════════════════════════════════
    REDUCED MOTION
  ═══════════════════════════════════════ */
  @media (prefers-reduced-motion: reduce) {
    .reveal, .reveal-left, .reveal-right, .reveal-scale {
      opacity: 1;
      transform: none;
      transition: none;
    }
    .float-badge { animation: none; }
    .status-dot { animation: none; }
  }

  /* ═══════════════════════════════════════
    RESPONSIVE
  ═══════════════════════════════════════ */
  @media (max-width: 900px) {
    :root { --space-3xl: 5rem; }

    .hero-inner { grid-template-columns: 1fr; gap: var(--space-xl); }
    .hero-visual { order: -1; }
    .hero-card-wrap { max-width: 100%; }

    .about-inner { grid-template-columns: 1fr; }
    .steps-grid { grid-template-columns: 1fr; }
    .steps-grid::before { display: none; }

    .benefits-grid { grid-template-columns: 1fr; }
    .benefit-card.featured { grid-column: span 1; }

    .testimonials-grid { grid-template-columns: 1fr 1fr; }

    .footer-top { grid-template-columns: 1fr 1fr; gap: var(--space-lg); }
    .footer-brand { grid-column: span 2; }

    .nav-links, .nav-actions .btn { display: none; }
    .nav-hamburger { display: flex; }
  }

  @media (max-width: 600px) {
    :root { --space-3xl: 4rem; --space-xl: 3rem; }

    .testimonials-grid { grid-template-columns: 1fr; }
    .footer-top { grid-template-columns: 1fr; }
    .footer-brand { grid-column: span 1; }
    .hero-mini-stats { grid-template-columns: 1fr 1fr; }
    .cta-band { flex-direction: column; text-align: center; }
    .hero-stats { gap: var(--space-md); }
    .stat-chips { flex-direction: column; }
  }

  /* ═══════════════════════════════════════
    NAV USER PILL (injected by auth.js)
  ═══════════════════════════════════════ */
  .nav-user-pill {
    position: relative;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.3rem 0.8rem 0.3rem 0.3rem;
    border-radius: var(--radius-full);
    background: var(--card-bg);
    border: 1.5px solid var(--card-border);
    backdrop-filter: blur(10px);
    cursor: pointer;
    transition: all var(--transition);
    user-select: none;
  }
  .nav-user-pill:hover {
    border-color: rgba(46,125,50,0.3);
    background: var(--accent-soft);
  }
  .nav-avatar {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--accent);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-size: 0.72rem;
    font-weight: 800;
    flex-shrink: 0;
  }
  .nav-user-name {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary);
  }

  /* Dropdown */
  .nav-user-dropdown {
    display: none;
    position: absolute;
    top: calc(100% + 10px);
    right: 0;
    min-width: 220px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: var(--radius-lg);
    box-shadow: 0 12px 40px rgba(0,0,0,0.12);
    overflow: hidden;
    z-index: 200;
    animation: dropIn 0.2s cubic-bezier(0.4,0,0.2,1);
  }
  @keyframes dropIn {
    from { opacity:0; transform: translateY(-6px) scale(0.97); }
    to   { opacity:1; transform: translateY(0)    scale(1); }
  }
  .nav-user-pill.open .nav-user-dropdown { display: block; }

  .nav-dropdown-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.9rem 1rem;
    background: var(--accent-soft);
  }
  .nav-dropdown-avatar {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: var(--accent);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-size: 0.82rem;
    font-weight: 800;
    flex-shrink: 0;
  }
  .nav-dropdown-name {
    font-family: var(--font-display);
    font-size: 0.88rem;
    font-weight: 700;
    color: var(--text-primary);
  }
  .nav-dropdown-email {
    font-size: 0.74rem;
    color: var(--text-muted);
    margin-top: 0.1rem;
  }
  .nav-dropdown-divider {
    height: 1px;
    background: var(--border);
  }
  .nav-dropdown-item {
    display: block;
    width: 100%;
    text-align: left;
    padding: 0.65rem 1rem;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    background: none;
    border: none;
    cursor: pointer;
    font-family: var(--font-body);
    transition: all var(--transition);
    text-decoration: none;
  }
  .nav-dropdown-item:hover {
    background: var(--accent-soft);
    color: var(--accent);
  }
  .nav-dropdown-logout {
    color: #e53935 !important;
  }
  .nav-dropdown-logout:hover {
    background: rgba(229,57,53,0.07) !important;
    color: #c62828 !important;
  }
  .hero {
    position: relative;
    overflow: hidden;
    min-height: 100vh;
  }

  .hero-video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: -2;
  }

  .hero-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.45);
    z-index: -1;
  }

  .hero .container {
    position: relative;
    z-index: 1;
  }

  /* ============================================================
     16. AI CHAT WIDGET
     ============================================================ */

  /* Trigger Button */
  .ai-chat-trigger {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 60px;
    height: 60px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--green-400), var(--green-600));
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 32px rgba(46, 125, 50, 0.3);
    cursor: pointer;
    z-index: 999;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    border: 2px solid rgba(255, 255, 255, 0.2);
  }

  .ai-chat-trigger:hover {
    transform: scale(1.1) translateY(-4px);
    box-shadow: 0 12px 40px rgba(46, 125, 50, 0.45);
  }

  .ai-chat-trigger:active {
    transform: scale(0.95);
  }

  .ai-chat-trigger svg {
    width: 28px;
    height: 28px;
    fill: currentColor;
    transition: transform var(--transition);
  }

  .ai-chat-trigger.active svg {
    transform: rotate(90deg);
  }

  /* Pulsing Notification Dot */
  .ai-chat-trigger::after {
    content: '';
    position: absolute;
    top: 2px;
    right: 2px;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #ff5252;
    border: 2px solid var(--white);
    box-shadow: 0 0 0 0 rgba(255, 82, 82, 0.7);
    animation: pulse-badge 2s infinite;
  }

  @keyframes pulse-badge {
    0% {
      box-shadow: 0 0 0 0 rgba(255, 82, 82, 0.7);
    }
    70% {
      box-shadow: 0 0 0 8px rgba(255, 82, 82, 0);
    }
    100% {
      box-shadow: 0 0 0 0 rgba(255, 82, 82, 0);
    }
  }

  .ai-chat-trigger.read::after {
    display: none;
  }

  /* Chat Window (Glassmorphic) */
  .ai-chat-window {
    position: fixed;
    bottom: 96px;
    right: 24px;
    width: 380px;
    height: 580px;
    max-height: calc(100vh - 120px);
    max-width: calc(100vw - 48px);
    border-radius: var(--radius-lg);
    display: flex;
    flex-direction: column;
    z-index: 1000;
    overflow: hidden;
    opacity: 0;
    transform: translateY(30px) scale(0.92);
    pointer-events: none;
    transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.15);
  }

  .ai-chat-window.open {
    opacity: 1;
    transform: translateY(0) scale(1);
    pointer-events: all;
  }

  /* Header */
  .ai-chat-header {
    padding: 1.2rem;
    background: linear-gradient(135deg, var(--green-500), var(--green-600));
    color: #fff;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    position: relative;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }

  .ai-chat-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    border: 1.5px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  }

  .ai-chat-info {
    display: flex;
    flex-direction: column;
    gap: 0.1rem;
  }

  .ai-chat-title {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 0.95rem;
    letter-spacing: -0.01em;
  }

  .ai-chat-status {
    font-size: 0.72rem;
    display: flex;
    align-items: center;
    gap: 0.3rem;
    opacity: 0.9;
  }

  .ai-chat-status::before {
    content: '';
    display: inline-block;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #4caf50;
    animation: blink 2s infinite;
  }

  .ai-chat-close {
    position: absolute;
    right: 1.2rem;
    top: 50%;
    transform: translateY(-50%);
    color: rgba(255, 255, 255, 0.75);
    font-size: 1.5rem;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition);
  }

  .ai-chat-close:hover {
    background: rgba(255, 255, 255, 0.15);
    color: #fff;
  }

  /* Messages Area */
  .ai-chat-messages {
    flex: 1;
    padding: 1.2rem;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    background: var(--bg);
    scroll-behavior: smooth;
  }

  /* Scrollbar styles for messages */
  .ai-chat-messages::-webkit-scrollbar {
    width: 5px;
  }
  .ai-chat-messages::-webkit-scrollbar-track {
    background: transparent;
  }
  .ai-chat-messages::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: var(--radius-full);
  }

  /* Chat bubble styling */
  .ai-message {
    display: flex;
    flex-direction: column;
    max-width: 80%;
    padding: 0.8rem 1.1rem;
    border-radius: var(--radius-md);
    font-size: 0.88rem;
    line-height: 1.5;
    animation: message-slide 0.3s cubic-bezier(0.165, 0.84, 0.44, 1) forwards;
    opacity: 0;
    transform: translateY(10px);
  }

  @keyframes message-slide {
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }

  .ai-message.bot {
    align-self: flex-start;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    color: var(--text-primary);
    border-bottom-left-radius: 4px;
  }

  .ai-message.user {
    align-self: flex-end;
    background: linear-gradient(135deg, var(--green-500), var(--green-600));
    color: #ffffff;
    border-bottom-right-radius: 4px;
    box-shadow: 0 4px 12px rgba(46, 125, 50, 0.15);
  }

  .ai-message-time {
    font-size: 0.68rem;
    margin-top: 0.4rem;
    opacity: 0.65;
    align-self: flex-end;
  }

  /* Suggestion Chips */
  .ai-chat-suggestions {
    display: flex;
    gap: 0.5rem;
    padding: 0.75rem 1.2rem;
    background: var(--bg);
    border-top: 1px solid var(--border);
    overflow-x: auto;
    white-space: nowrap;
    scrollbar-width: none;
  }
  .ai-chat-suggestions::-webkit-scrollbar {
    display: none;
  }

  .ai-suggest-chip {
    display: inline-block;
    padding: 0.4rem 0.8rem;
    border-radius: var(--radius-full);
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    font-size: 0.78rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition);
  }

  .ai-suggest-chip:hover {
    background: var(--accent-soft);
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-1px);
  }

  /* Input Area */
  .ai-chat-input-area {
    padding: 0.9rem 1.2rem;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    display: flex;
    gap: 0.75rem;
    align-items: center;
  }

  .ai-chat-input {
    flex: 1;
    padding: 0.75rem 1rem;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    background: var(--bg);
    color: var(--text-primary);
    font-family: inherit;
    transition: all var(--transition);
  }

  .ai-chat-input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-soft);
  }

  .ai-chat-send {
    width: 42px;
    height: 42px;
    border-radius: var(--radius-md);
    background: var(--accent);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition);
    flex-shrink: 0;
    box-shadow: 0 4px 12px rgba(46, 125, 50, 0.2);
  }

  .ai-chat-send:hover {
    background: var(--green-600);
    transform: translateY(-1px);
  }

  .ai-chat-send svg {
    width: 18px;
    height: 18px;
    fill: currentColor;
    transform: translateX(1px);
  }

  /* Typing Indicator */
  .ai-typing-indicator {
    display: flex;
    gap: 4px;
    padding: 4px 8px;
    align-self: flex-start;
  }

  .ai-typing-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--text-muted);
    animation: typing-bounce 1.4s infinite ease-in-out both;
  }

  .ai-typing-dot:nth-child(1) { animation-delay: -0.32s; }
  .ai-typing-dot:nth-child(2) { animation-delay: -0.16s; }

  @keyframes typing-bounce {
    0%, 80%, 100% { transform: scale(0); }
    40% { transform: scale(1); }
  }

  /* Mobile responsive fixes */
  @media (max-width: 480px) {
    .ai-chat-window {
      bottom: 84px;
      right: 16px;
      left: 16px;
      width: auto;
      height: 480px;
    }
    .ai-chat-trigger {
      bottom: 16px;
      right: 16px;
      width: 52px;
      height: 52px;
    }
  }

  /* API Settings Panel */
  .ai-chat-settings-panel {
    position: absolute;
    top: 72px;
    left: 16px;
    right: 16px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 1.2rem;
    z-index: 1001;
    box-shadow: var(--glass-shadow);
    display: none;
    animation: message-slide 0.3s cubic-bezier(0.165, 0.84, 0.44, 1) forwards;
  }
  .ai-chat-settings-panel.open {
    display: block;
  }
  .ai-chat-settings-btn {
    color: rgba(255, 255, 255, 0.75);
    font-size: 1.1rem;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition);
  }
  .ai-chat-settings-btn:hover {
    background: rgba(255, 255, 255, 0.15);
    color: #fff;
  }
