/* Landing Page Theme Switcher (Index only)
   Themes:
   - Clean (Light)
   - 3D (Dark)

   Implementation notes:
   - This file only defines landing-page CSS variables + a few theme-specific overrides.
   - All main component styles should use variables from `:root` / `[data-landing-theme]`.
*/

/* ------------------------------
   Default variables (fallback)
   ------------------------------ */
:root {
  --lp-font-sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Arial, "Noto Sans", "Liberation Sans", sans-serif;
  --lp-font-display: "Segoe UI", "SF Pro Display", "Inter", system-ui, -apple-system, Roboto, "Helvetica Neue", Arial, sans-serif;

  --lp-bg: #0b1020;
  --lp-bg2: #070a14;
  --lp-text: #e7ecff;
  --lp-muted: rgba(231, 236, 255, 0.72);

  --lp-surface: rgba(255, 255, 255, 0.06);
  --lp-surface-2: rgba(255, 255, 255, 0.08);
  --lp-surface-elevated: rgba(255, 255, 255, 0.10);
  --lp-border: rgba(255, 255, 255, 0.14);
  --lp-border-hover: rgba(255, 255, 255, 0.22);
  --lp-glow-primary: rgba(124, 92, 255, 0.08);

  --lp-primary: #7c5cff;
  --lp-secondary: #00d4ff;
  --lp-accent: #ff4fd8;

  --lp-gradient: linear-gradient(135deg, var(--lp-primary) 0%, var(--lp-secondary) 55%, var(--lp-accent) 100%);
  --lp-gradient-soft: radial-gradient(circle at 20% 20%, rgba(124, 92, 255, 0.35), transparent 55%),
    radial-gradient(circle at 75% 35%, rgba(0, 212, 255, 0.25), transparent 58%),
    radial-gradient(circle at 55% 85%, rgba(255, 79, 216, 0.22), transparent 55%);

  --lp-shadow-lg: 0 30px 80px rgba(0, 0, 0, 0.45);
  --lp-shadow-md: 0 14px 30px rgba(0, 0, 0, 0.35);

  --lp-radius-xl: 24px;
  --lp-radius-lg: 16px;
  --lp-radius-md: 12px;

  --lp-focus: 0 0 0 4px rgba(0, 212, 255, 0.25);

  --lp-btn-bg: var(--lp-gradient);
  --lp-btn-text: #0b1020;
  --lp-btn-outline-bg: rgba(255, 255, 255, 0.06);
  --lp-btn-outline-border: rgba(255, 255, 255, 0.25);

  --lp-icon-grad: var(--lp-gradient);

  --lp-particles-bg: linear-gradient(180deg, #0b1020 0%, #070a14 100%);
  --lp-page-shader: radial-gradient(circle at 14% 12%, rgba(124, 92, 255, 0.16), transparent 28%),
    radial-gradient(circle at 84% 18%, rgba(0, 212, 255, 0.12), transparent 30%),
    radial-gradient(circle at 54% 86%, rgba(255, 79, 216, 0.10), transparent 34%);
  --lp-hero-title-gradient: linear-gradient(110deg, #ffffff 0%, var(--lp-secondary) 28%, var(--lp-primary) 58%, var(--lp-accent) 82%, #ffffff 100%);
  --lp-hero-title-shadow: 0 22px 70px rgba(0, 0, 0, 0.42);
  --lp-hero-logo-shadow: rgba(0, 0, 0, 0.42);
  --lp-star-strong: rgba(255, 255, 255, 0.86);
  --lp-star-soft: rgba(34, 211, 238, 0.48);
  --lp-galaxy-opacity: 0.82;
}

/* Smooth theme transition */
body[data-page-type="landing"] {
  transition: background 450ms ease;
}

/* ------------------------------
   Theme: Professional / Clean
   ------------------------------ */
[data-landing-theme="clean"] {
  --lp-font-display: "Segoe UI", "SF Pro Display", "Inter", system-ui, -apple-system, Roboto, "Helvetica Neue", Arial, sans-serif;

  --lp-bg: var(--theme-bg);
  --lp-bg2: var(--theme-bg);
  --lp-text: var(--theme-text);
  --lp-muted: rgba(30, 58, 95, 0.70);

  --lp-surface: rgba(255, 255, 255, 0.95);
  --lp-surface-2: var(--theme-surface);
  --lp-surface-elevated: var(--theme-surface);
  --lp-border: rgba(30, 58, 95, 0.08);
  --lp-border-hover: rgba(30, 58, 95, 0.14);
  --lp-glow-primary: transparent;

  --lp-primary: var(--theme-primary);
  --lp-secondary: var(--theme-primary-light);
  --lp-accent: var(--theme-accent);

  --lp-gradient: var(--theme-gradient-primary);
  --lp-gradient-soft: radial-gradient(circle at 20% 10%, rgba(37, 99, 235, 0.10), transparent 55%),
    radial-gradient(circle at 70% 25%, rgba(37, 99, 235, 0.06), transparent 58%),
    radial-gradient(circle at 60% 85%, rgba(245, 158, 11, 0.05), transparent 55%);

  --lp-shadow-lg: 0 26px 70px rgba(30, 58, 95, 0.12);
  --lp-shadow-md: 0 14px 30px rgba(30, 58, 95, 0.08);

  --lp-btn-bg: var(--lp-gradient);
  --lp-btn-text: var(--theme-text-inverse);
  --lp-btn-outline-bg: var(--theme-surface);
  --lp-btn-outline-border: rgba(37, 99, 235, 0.20);

  --lp-icon-grad: var(--lp-gradient);

  --lp-particles-bg: var(--theme-bg);
  --lp-page-shader: radial-gradient(circle at 12% 10%, rgba(37, 99, 235, 0.22), transparent 32%),
    radial-gradient(circle at 86% 16%, rgba(14, 165, 233, 0.18), transparent 34%),
    radial-gradient(circle at 18% 72%, rgba(99, 102, 241, 0.13), transparent 30%),
    radial-gradient(circle at 72% 82%, rgba(245, 158, 11, 0.11), transparent 34%),
    linear-gradient(135deg, rgba(219, 234, 254, 0.38), rgba(255, 255, 255, 0.04) 48%, rgba(224, 242, 254, 0.30));
  --lp-snapshot-blend: transparent;
  --lp-hero-title-gradient: linear-gradient(110deg, var(--theme-primary) 0%, var(--theme-primary-light) 35%, var(--theme-accent) 70%, var(--theme-primary) 100%);
  --lp-hero-title-shadow: 0 12px 28px rgba(15, 23, 42, 0.18);
  --lp-hero-logo-shadow: rgba(30, 58, 95, 0.18);
  --lp-star-strong: rgba(37, 99, 235, 0.58);
  --lp-star-soft: rgba(14, 165, 233, 0.40);
  --lp-galaxy-opacity: 0.86;

  /* Hero text contrast (light theme): use the active theme's primary color for
     kicker/subtitle so the copy switches color with the theme, and apply a
     subtle drop-shadow for legibility against the colorful 3D logo. */
  --lp-hero-kicker-color: var(--theme-primary);
  --lp-hero-subtitle-color: var(--theme-text);
  --lp-hero-text-shadow: 0 1px 2px rgba(255, 255, 255, 0.85);
}

[data-landing-theme="clean"] .landing-theme-switcher .switcher-shell {
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid rgba(15, 23, 42, 0.12);
  box-shadow: 0 16px 40px rgba(2, 6, 23, 0.12);
}

[data-landing-theme="clean"] .landing-theme-switcher .switcher-title,
[data-landing-theme="clean"] .landing-theme-switcher .theme-btn {
  color: rgba(15, 23, 42, 0.88);
}

[data-landing-theme="clean"] .landing-theme-switcher .theme-btn {
  background: rgba(255, 255, 255, 0.95);
  border: 1px solid rgba(15, 23, 42, 0.12);
}

[data-landing-theme="clean"] .landing-theme-switcher .kbd {
  background: rgba(15, 23, 42, 0.06);
  border-color: rgba(15, 23, 42, 0.1);
}

/* ------------------------------
   Theme: Modern / 3D
   ------------------------------ */
[data-landing-theme="3d"] {
  --lp-font-display: var(--lp-font-sans);

  --lp-bg: #0b0b24;
  --lp-bg2: #0b0b24;
  --lp-text: #f2f4ff;
  --lp-muted: rgba(242, 244, 255, 0.72);

  --lp-surface: rgba(255, 255, 255, 0.06);
  --lp-surface-2: rgba(255, 255, 255, 0.09);
  --lp-surface-elevated: rgba(255, 255, 255, 0.12);
  --lp-border: rgba(255, 255, 255, 0.16);
  --lp-border-hover: rgba(255, 255, 255, 0.25);
  --lp-glow-primary: rgba(139, 92, 246, 0.08);

  --lp-primary: #8b5cf6;
  --lp-secondary: #22d3ee;
  --lp-accent: #fb7185;

  --lp-gradient: linear-gradient(135deg, #8b5cf6 0%, #22d3ee 55%, #fb7185 100%);
  --lp-gradient-soft: radial-gradient(circle at 18% 20%, rgba(139, 92, 246, 0.30), transparent 60%),
    radial-gradient(circle at 76% 30%, rgba(34, 211, 238, 0.22), transparent 60%),
    radial-gradient(circle at 60% 85%, rgba(251, 113, 133, 0.18), transparent 60%);

  --lp-shadow-lg: 0 40px 120px rgba(0, 0, 0, 0.62);
  --lp-shadow-md: 0 18px 44px rgba(0, 0, 0, 0.46);

  --lp-btn-bg: linear-gradient(135deg, rgba(255, 255, 255, 0.14), rgba(255, 255, 255, 0.07));
  --lp-btn-text: #ffffff;
  --lp-btn-outline-bg: rgba(255, 255, 255, 0.06);
  --lp-btn-outline-border: rgba(255, 255, 255, 0.22);

  --lp-icon-grad: var(--lp-gradient);

  --lp-particles-bg: #0b0b24;
  --lp-page-shader: radial-gradient(circle at 22% 20%, rgba(139, 92, 246, 0.25), transparent 45%),
    radial-gradient(circle at 75% 25%, rgba(34, 211, 238, 0.18), transparent 48%),
    radial-gradient(circle at 55% 82%, rgba(251, 113, 133, 0.14), transparent 55%),
    linear-gradient(180deg, #0b0b24 0%, #0b0b24 100%);
  --lp-snapshot-blend:
    radial-gradient(ellipse at 55% 0%, rgba(139, 92, 246, 0.12), transparent 60%),
    radial-gradient(ellipse at 75% 0%, rgba(34, 211, 238, 0.08), transparent 50%),
    radial-gradient(ellipse at 40% 0%, rgba(251, 113, 133, 0.06), transparent 45%);
  --lp-hero-title-gradient: linear-gradient(110deg, #ffffff 0%, #22d3ee 30%, #8b5cf6 56%, #fb7185 78%, #ffffff 100%);
  --lp-hero-title-shadow: 0 24px 80px rgba(34, 211, 238, 0.16), 0 34px 100px rgba(139, 92, 246, 0.18);
  --lp-hero-logo-shadow: rgba(0, 0, 0, 0.52);
  --lp-star-strong: rgba(255, 255, 255, 0.9);
  --lp-star-soft: rgba(34, 211, 238, 0.56);
  --lp-galaxy-opacity: 0.9;
}

[data-landing-theme="3d"] .portal-card,
[data-landing-theme="3d"] .feature-card,
[data-landing-theme="3d"] .stat-item,
[data-landing-theme="3d"] .floating-card {
  transform-style: preserve-3d;
}

[data-landing-theme="3d"] .hero-illustration {
  filter: drop-shadow(0 22px 35px rgba(34, 211, 238, 0.12)) drop-shadow(0 22px 35px rgba(139, 92, 246, 0.10));
}

/* 3D theme: card inner highlight + CTA glow */
[data-landing-theme="3d"] .snapshot-card,
[data-landing-theme="3d"] .benefit-card,
[data-landing-theme="3d"] .love-card-inner,
[data-landing-theme="3d"] .use-case-card,
[data-landing-theme="3d"] .step-content {
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06), var(--lp-shadow-md);
}

[data-landing-theme="3d"] .cta-card {
  box-shadow: 0 0 60px rgba(139, 92, 246, 0.18), 0 25px 60px rgba(0, 0, 0, 0.4);
}

[data-landing-theme="3d"] .step-number {
  box-shadow: 0 0 20px rgba(139, 92, 246, 0.3);
}

/* ------------------------------
   OLD Theme Switcher (Remove/Hide)
   ------------------------------ */
.landing-theme-switcher {
  display: none !important;
}