/*
  Indreberg Tours – minimal, modern styles
  - System-friendly, light/dark support
  - Responsive with a single layout container
*/

:root {
  /* Dark theme palette */
  --bg: #07080c;
  --surface: #0b0f15;
  --surface-2: #0f1520;
  --text: #e8eefb;
  --muted: #8ea0b8;

  /* Accents */
  --green-1: #25e58a;
  --green-2: #0fb884;
  --purple-1: #8b5cf6; /* violet */
  --purple-2: #6d28d9; /* deep violet */

  /* Legacy names kept for components */
  --primary: var(--green-1);
  --primary-strong: var(--green-2);
  --accent: var(--green-1);

  --shadow: 0 12px 40px rgba(0,0,0,0.45);
}
html, body { max-width: 100%; overflow-x: hidden; }
*, *::before, *::after { box-sizing: border-box; }
[data-theme="light"] {
  --bg: #f7f9fc;
  --surface: #ffffff;
  --surface-2: #f2f5fb;
  --text: #0b1020;
  --muted: #44536b;
  --primary: var(--green-1);
  --primary-strong: var(--green-2);
  --accent: var(--green-1);
  --shadow: 0 8px 22px rgba(2, 12, 27, 0.10);
}
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  background: radial-gradient(1200px 600px at 85% -10%, rgba(139, 92, 246, 0.18), transparent 60%),
              radial-gradient(900px 600px at 8% -20%, rgba(37, 229, 138, 0.14), transparent 55%),
              linear-gradient(180deg, #06070b, var(--bg));
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

[data-theme="light"] body {
  background: radial-gradient(1200px 600px at 85% -10%, rgba(139, 92, 246, 0.10), transparent 60%),
              radial-gradient(900px 600px at 8% -20%, rgba(37, 229, 138, 0.08), transparent 55%),
              var(--bg);
}

.container {
  width: min(1100px, 92vw);
  margin-inline: auto;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: linear-gradient(180deg, rgba(12,16,24,0.75), rgba(12,16,24,0.35), transparent);
  backdrop-filter: blur(6px);
}
/* Light header background tweak */
[data-theme="light"] .site-header {
  background: linear-gradient(180deg, rgba(255,255,255,0.85), rgba(255,255,255,0.6), transparent);
}

/* Theme toggle */
.theme-toggle {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  border: 1px solid color-mix(in oklab, var(--text) 12%, transparent);
  background: color-mix(in oklab, var(--surface) 85%, var(--surface-2));
  color: var(--text);
  cursor: pointer;
  box-shadow: 0 6px 18px rgba(0,0,0,0.25);
  transition: transform 120ms ease, box-shadow 160ms ease, background 160ms ease;
}
.theme-toggle:hover { transform: translateY(-1px); box-shadow: 0 10px 24px rgba(0,0,0,0.3); }
.theme-toggle:focus-visible { outline: none; box-shadow: 0 0 0 3px rgba(0,0,0,0.08), 0 0 0 6px color-mix(in oklab, var(--purple-1) 40%, transparent); }
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  letter-spacing: 0.3px;
}
.brand-mark {
  width: 10px;
  height: 10px;
  display: inline-block;
  background: linear-gradient(180deg, var(--green-1), var(--green-2));
  border-radius: 50%;
  box-shadow: 0 0 0 6px color-mix(in oklab, var(--green-1) 16%, transparent),
              0 0 18px rgba(37,229,138,0.45);
}
.brand-name { font-size: 1.05rem; }

/* nav removed per request */

/* Header logo (top-right) */
.logo-link { display: inline-flex; margin-right: 18px; }
.logo-img {
  width: 48px;
  height: 48px;
  object-fit: contain;
  filter: drop-shadow(0 6px 14px rgba(0,0,0,0.45));
  opacity: 0.95;
  transition: transform 140ms ease, opacity 140ms ease;
}
.logo-link:hover .logo-img {
  transform: translateY(-1px) scale(1.02);
  opacity: 1;
}

/* Hero */
.hero {
  display: grid;
  place-items: center;
  padding: 14vh 0 10vh;
}
.hero-inner {
  text-align: center;
}
.hero-title {
  font-size: clamp(2rem, 5vw + 1rem, 4rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin: 0 0 12px;
}
.hero-subtitle {
  color: color-mix(in oklab, var(--muted) 90%, var(--text));
  font-size: clamp(1rem, 1.1vw + 0.8rem, 1.25rem);
  margin: 0 0 28px;
}

/* Buttons */
.btn {
  appearance: none;
  border: 0;
  padding: 14px 22px;
  border-radius: 14px;
  font-weight: 700;
  letter-spacing: 0.2px;
  cursor: pointer;
  transition: transform 140ms ease, box-shadow 160ms ease, background 160ms ease, filter 160ms ease;
  will-change: transform, box-shadow, filter;
  color: white;
  position: relative;
  isolation: isolate;
}
.btn-primary {
  background: linear-gradient(180deg, var(--green-1), var(--green-2));
  box-shadow:
    0 12px 28px rgba(15, 184, 132, 0.25),
    0 2px 0 rgba(255,255,255,0.08) inset,
    0 -10px 24px rgba(255,255,255,0.04) inset;
}
.btn-primary:hover {
  transform: translateY(-1px);
  filter: brightness(1.03);
  box-shadow:
    0 16px 36px rgba(15, 184, 132, 0.35),
    0 2px 0 rgba(255,255,255,0.10) inset,
    0 -10px 24px rgba(255,255,255,0.06) inset;
}
.btn-secondary {
  background: linear-gradient(180deg, var(--purple-1), var(--purple-2));
  color: white;
  box-shadow:
    0 12px 28px rgba(139, 92, 246, 0.25),
    0 2px 0 rgba(255,255,255,0.08) inset,
    0 -10px 24px rgba(255,255,255,0.04) inset;
}
.btn-secondary:hover {
  transform: translateY(-1px);
  filter: brightness(1.03);
  box-shadow:
    0 16px 36px rgba(139, 92, 246, 0.35),
    0 2px 0 rgba(255,255,255,0.10) inset,
    0 -10px 24px rgba(255,255,255,0.06) inset;
}

.btn:focus-visible {
  outline: none;
  box-shadow:
    0 0 0 3px rgba(255,255,255,0.07),
    0 0 0 6px color-mix(in oklab, var(--green-1) 45%, transparent),
    0 14px 36px rgba(0,0,0,0.45);
}

/* Light theme button overrides: sleek black */
[data-theme="light"] .btn-primary {
  background: linear-gradient(180deg, #171717, #0a0a0a);
  color: #ffffff;
  box-shadow:
    0 10px 24px rgba(0,0,0,0.22),
    0 2px 0 rgba(255,255,255,0.06) inset,
    0 -10px 24px rgba(255,255,255,0.03) inset;
}
[data-theme="light"] .btn-primary:hover {
  transform: translateY(-1px);
  filter: brightness(1.02);
  box-shadow:
    0 14px 32px rgba(0,0,0,0.28),
    0 2px 0 rgba(255,255,255,0.08) inset,
    0 -10px 24px rgba(255,255,255,0.05) inset;
}

[data-theme="light"] .btn-secondary {
  background: transparent;
  color: #0b1020;
  border: 1px solid #0b1020;
  box-shadow: 0 6px 16px rgba(0,0,0,0.10);
}
[data-theme="light"] .btn-secondary:hover {
  background: rgba(0,0,0,0.05);
  transform: translateY(-1px);
}

[data-theme="light"] .btn:focus-visible {
  box-shadow:
    0 0 0 3px rgba(0,0,0,0.08),
    0 0 0 6px rgba(0,0,0,0.35),
    0 10px 28px rgba(0,0,0,0.20);
}

/* Sections */
.section-title {
  font-size: clamp(1.5rem, 2vw + 1rem, 2rem);
  margin: 0 0 12px;
}
.tour, .contact {
  padding: 64px 0;
}

/* Highlights/FAQ alternating blocks */
.faq { display: grid; gap: 26px; }
/* Alternating image/text blocks */
.faq-item { display: grid; grid-template-columns: 1.1fr 1fr; gap: 20px; align-items: center; }
/* Even items reverse visual order */
.faq-item:nth-child(even) { grid-template-columns: 1fr 1.1fr; }
.faq-item:nth-child(even) .faq-image { grid-column: 2; }
.faq-item:nth-child(even) .faq-text { grid-column: 1; }
.faq-image img { width: 100%; height: auto; border-radius: 14px; box-shadow: 0 8px 24px rgba(0,0,0,0.25); }
.faq-text h3 { margin: 0 0 6px; }
.faq-text p { margin: 0 0 10px; color: var(--muted); }

@media (max-width: 900px) {
  .faq-item { grid-template-columns: 1fr; }
  /* Reset columns when stacked */
  .faq-item:nth-child(even) .faq-image,
  .faq-item:nth-child(even) .faq-text { grid-column: auto; }
}

/* Cards - Featured Tours */
.tours { padding: 20px 0 64px; }
.cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
  margin-top: 12px;
}
.card {
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: 8px;
  text-decoration: none;
  padding: 18px 16px;
  border-radius: 16px;
  background: linear-gradient(180deg, color-mix(in oklab, var(--surface) 85%, var(--surface-2)), var(--surface-2));
  border: 1px solid color-mix(in oklab, var(--text) 12%, transparent);
  box-shadow: 0 8px 24px rgba(0,0,0,0.35);
  color: var(--text);
  transition: transform 140ms ease, box-shadow 160ms ease, border-color 160ms ease;
}
.card:hover { transform: translateY(-2px); box-shadow: 0 16px 40px rgba(0,0,0,0.45); }
.card-title { margin: 0; font-size: 1.125rem; }
.card-text { margin: 0; color: color-mix(in oklab, var(--muted) 88%, var(--text)); }
.card-price { margin-top: 2px; font-weight: 800; }
.card-cta { margin-top: 6px; font-weight: 700; }

.card--green { border-color: color-mix(in oklab, var(--green-1) 40%, transparent); }
.card--green:hover { box-shadow: 0 16px 40px rgba(37,229,138,0.28), 0 8px 26px rgba(0,0,0,0.5); }

.card--purple { border-color: color-mix(in oklab, var(--purple-1) 40%, transparent); }
.card--purple:hover { box-shadow: 0 16px 40px rgba(139,92,246,0.28), 0 8px 26px rgba(0,0,0,0.5); }

.card--blue { border-color: color-mix(in oklab, #60a5fa 45%, transparent); }
.card--blue:hover { box-shadow: 0 16px 40px rgba(96,165,250,0.28), 0 8px 26px rgba(0,0,0,0.5); }

/* Steps */
.steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.step {
  background: linear-gradient(180deg, color-mix(in oklab, var(--surface) 85%, var(--surface-2)), var(--surface-2));
  border: 1px solid color-mix(in oklab, var(--text) 12%, transparent);
  padding: 18px 16px;
  border-radius: 16px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.35);
}
.step-title { margin: 0 0 6px; font-size: 1.05rem; }
.step-text { margin: 0; color: color-mix(in oklab, var(--muted) 88%, var(--text)); }

/* Contact */
.contact-inner { text-align: center; }
.contact-text { color: var(--muted); margin: 0 0 18px; }

/* Footer */
.site-footer { padding: 40px 0; }
.footer-inner { color: var(--muted); text-align: center; }
.footer-link { color: var(--primary); text-decoration: none; font-weight: 600; }
.footer-link:hover { color: var(--primary-strong); text-decoration: underline; }

/* Booking form */
.booking {
  padding: 30px 0 64px;
}
.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}
.field { display: grid; gap: 6px; min-width: 0; }
.field label { font-weight: 700; font-size: 0.95rem; }
.field.full { grid-column: 1 / -1; }
.field input, .field select, .field textarea {
  appearance: none;
  display: block;
  width: 100%;
  padding: 12px 12px;
  border-radius: 12px;
  border: 1px solid color-mix(in oklab, var(--text) 12%, transparent);
  background: color-mix(in oklab, var(--surface) 85%, var(--surface-2));
  color: var(--text);
  box-shadow: 0 4px 14px rgba(0,0,0,0.25) inset;
}
.field textarea { resize: vertical; min-height: 96px; }
.field input::placeholder { color: color-mix(in oklab, var(--muted) 80%, var(--text)); }
.field input:focus { outline: none; border-color: color-mix(in oklab, var(--purple-1) 45%, transparent); }
.form-actions { margin-top: 12px; display: flex; gap: 12px; }

[data-theme="light"] .field input, [data-theme="light"] .field select, [data-theme="light"] .field textarea {
  background: var(--surface);
  box-shadow: none;
}

/* Utilities */
.price-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: 14px;
  background: linear-gradient(180deg, color-mix(in oklab, var(--surface) 80%, var(--surface-2)), var(--surface-2));
  border: 1px solid color-mix(in oklab, var(--text) 14%, transparent);
  box-shadow: 0 6px 18px rgba(0,0,0,0.3);
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.2;
  white-space: nowrap;
}
.price-badge strong { font-size: 1.05rem; letter-spacing: 0.5px; }
[data-theme="light"] .price-badge { background: var(--surface); box-shadow: 0 4px 12px rgba(0,0,0,0.12); }

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0);
  white-space: nowrap; border: 0;
}

/* Responsive */
@media (max-width: 900px) {
  .steps { grid-template-columns: 1fr; }
  .cards { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .logo-img { width: 40px; height: 40px; }
}