/* ============================================================
   T-KON UV Theme — Design System
   Source: unit45host/t-kon-uv (visual concepts only)

   USAGE:
   - Add <link rel="stylesheet" href="/css/uv-theme.css"> only to
     landing / marketing pages (landing.html, pricing.html, etc.)
   - Do NOT include on functional Campaign OS pages (campaigns.html,
     google-ads-connect.html, platform-onboarding.html, batch.html)
   - All classes are OPT-IN — no global element overrides
   - Apply .page-dark to <body> for full dark mode on a page

   Palette:
     --uv-bg:        #09090F  (deep space black)
     --uv-surface:   #12121C  (card background)
     --uv-elevated:  #1A1A2E  (elevated surface)
     --uv-purple:    #7B2FFF  (UV purple — primary)
     --uv-purple-lt: #9B5FFF  (lighter purple)
     --uv-cyan:      #00F5D4  (electric cyan — accent)
     --uv-pink:      #FF2D78  (neon pink — highlight)
     --uv-text:      #F0EEFF  (near-white with purple tint)
     --uv-muted:     #8B8BA7  (dimmed text)
     --uv-border:    rgba(123,47,255,0.25)
   ============================================================ */

/* ── Design tokens ─────────────────────────────────────────── */
:root {
  --uv-bg:         #09090F;
  --uv-surface:    #12121C;
  --uv-elevated:   #1A1A2E;
  --uv-purple:     #7B2FFF;
  --uv-purple-lt:  #9B5FFF;
  --uv-cyan:       #00F5D4;
  --uv-pink:       #FF2D78;
  --uv-text:       #F0EEFF;
  --uv-muted:      #8B8BA7;
  --uv-border:     rgba(123,47,255,0.25);
  --uv-glow-p:     0 0 24px rgba(123,47,255,0.45);
  --uv-glow-c:     0 0 24px rgba(0,245,212,0.35);
}

/* ── Page-level dark theme (opt-in via .page-dark on <body>) ─ */
.page-dark {
  background-color: var(--uv-bg) !important;
  color: var(--uv-text) !important;
}

.page-dark a {
  color: var(--uv-cyan);
}

.page-dark a:hover {
  color: #fff;
}

.page-dark footer {
  background: #07070D !important;
  border-top: 1px solid var(--uv-border) !important;
  color: var(--uv-muted) !important;
}

.page-dark hr {
  border-color: var(--uv-border) !important;
}

/* ── Hero section ──────────────────────────────────────────── */
/* Overrides the inline .gradient-hero for pages that load uv-theme.css */
.gradient-hero {
  background: linear-gradient(135deg, #09090F 0%, #1A0A3D 50%, #0D1F3C 100%) !important;
  position: relative;
  overflow: hidden;
}

.gradient-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 40% at 20% 50%, rgba(123,47,255,0.18) 0%, transparent 70%),
    radial-gradient(ellipse 40% 60% at 80% 30%, rgba(0,245,212,0.10) 0%, transparent 70%);
  pointer-events: none;
}

/* ── Buttons ───────────────────────────────────────────────── */
.btn-uv-primary {
  background: linear-gradient(135deg, var(--uv-purple) 0%, #5B1FCC 100%);
  color: #fff !important;
  font-weight: 700;
  border-radius: 0.5rem;
  padding: 0.75rem 2rem;
  transition: box-shadow 0.2s, transform 0.15s;
  box-shadow: var(--uv-glow-p);
  border: none;
  cursor: pointer;
  display: inline-block;
  text-decoration: none;
  line-height: 1.25;
  text-align: center;
}

.btn-uv-primary:hover {
  box-shadow: 0 0 36px rgba(123,47,255,0.65);
  transform: translateY(-2px);
  color: #fff !important;
}

.btn-uv-outline {
  background: transparent;
  color: var(--uv-cyan) !important;
  border: 2px solid rgba(0,245,212,0.45);
  font-weight: 600;
  border-radius: 0.5rem;
  padding: 0.75rem 2rem;
  transition: border-color 0.2s, box-shadow 0.2s, transform 0.15s;
  cursor: pointer;
  display: inline-block;
  text-decoration: none;
  line-height: 1.25;
  text-align: center;
}

.btn-uv-outline:hover {
  border-color: var(--uv-cyan);
  box-shadow: var(--uv-glow-c);
  transform: translateY(-2px);
  color: var(--uv-cyan) !important;
}

/* ── Cards ─────────────────────────────────────────────────── */
/* Overrides .card-hover for pages that load uv-theme.css */
.card-hover {
  background: var(--uv-surface) !important;
  border: 1px solid var(--uv-border) !important;
  border-radius: 1rem !important;
  transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s !important;
  color: var(--uv-text) !important;
}

.card-hover:hover {
  transform: translateY(-6px) !important;
  box-shadow: var(--uv-glow-p) !important;
  border-color: rgba(123,47,255,0.6) !important;
}

/* Glass morphism card */
.glass-card {
  background: rgba(26,26,46,0.7);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--uv-border);
  border-radius: 1rem;
}

/* ── Typography helpers ────────────────────────────────────── */
.gradient-text-uv {
  background: linear-gradient(90deg, var(--uv-purple-lt) 0%, var(--uv-cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-uv-cyan   { color: var(--uv-cyan) !important; }
.text-uv-purple { color: var(--uv-purple-lt) !important; }
.text-uv-pink   { color: var(--uv-pink) !important; }
.text-uv-muted  { color: var(--uv-muted) !important; }

/* ── Surface / background helpers ─────────────────────────── */
.bg-uv-base     { background-color: var(--uv-bg) !important; }
.bg-uv-surface  { background-color: var(--uv-surface) !important; }
.bg-uv-elevated { background-color: var(--uv-elevated) !important; }
.border-uv      { border-color: var(--uv-border) !important; }

/* ── Neon badge / pill ─────────────────────────────────────── */
.neon-badge {
  background: rgba(123,47,255,0.15);
  border: 1px solid rgba(123,47,255,0.4);
  color: var(--uv-cyan);
  border-radius: 9999px;
  padding: 0.25rem 1rem;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  display: inline-block;
}

/* ── Neon glow divider ─────────────────────────────────────── */
.neon-divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--uv-purple), var(--uv-cyan), transparent);
  border: none;
  margin: 0;
}

/* ── Pricing card highlight ────────────────────────────────── */
.pricing-highlight {
  background: linear-gradient(135deg, rgba(123,47,255,0.25) 0%, rgba(0,245,212,0.10) 100%) !important;
  border: 1px solid rgba(123,47,255,0.55) !important;
  box-shadow: var(--uv-glow-p) !important;
}

/* ── Section backgrounds ───────────────────────────────────── */
.section-uv-alt {
  background-color: var(--uv-surface) !important;
}

.social-strip-uv {
  background: var(--uv-surface) !important;
  border-top: 1px solid var(--uv-border) !important;
  border-bottom: 1px solid var(--uv-border) !important;
}

/* ── Animated background grid (optional decorative overlay) ── */
.grid-bg-uv {
  background-image:
    linear-gradient(rgba(123,47,255,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(123,47,255,0.05) 1px, transparent 1px);
  background-size: 40px 40px;
}

/* ── Custom scrollbar (page-dark scoped) ───────────────────── */
.page-dark ::-webkit-scrollbar { width: 6px; height: 6px; }
.page-dark ::-webkit-scrollbar-track { background: var(--uv-bg); }
.page-dark ::-webkit-scrollbar-thumb { background: rgba(123,47,255,0.4); border-radius: 3px; }
.page-dark ::-webkit-scrollbar-thumb:hover { background: var(--uv-purple); }
