/* =========================================
   Alpine Tours and Travels - Global Stylesheet
   Premium / luxury alpine theme
   ========================================= */

:root {
  --bg: #0b0d10;
  --bg-elev: #111418;
  --bg-card: #14181d;
  --line: rgba(255, 255, 255, 0.08);
  --text: #e8ebef;
  --text-muted: #a4adb6;
  --gold: #c9a86a;
  --gold-2: #e6c98a;
  --accent: #d8b878;
  --danger: #e15a5a;
  --radius-lg: 22px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --shadow-lg: 0 30px 80px rgba(0, 0, 0, 0.45);
  --shadow-md: 0 12px 30px rgba(0, 0, 0, 0.35);
  --container: 1200px;
  --ease: cubic-bezier(.22, 1, .36, 1);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color .25s var(--ease); }
a:hover { color: var(--gold-2); }

h1, h2, h3, h4 {
  font-family: 'Cormorant Garamond', 'Playfair Display', Georgia, serif;
  font-weight: 500;
  letter-spacing: -0.01em;
  line-height: 1.15;
  margin: 0 0 .6em;
}

h1 { font-size: clamp(2.6rem, 6vw, 5rem); }
h2 { font-size: clamp(2rem, 4vw, 3.2rem); }
h3 { font-size: clamp(1.4rem, 2.4vw, 1.85rem); }

p { margin: 0 0 1em; color: var(--text-muted); }

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.eyebrow {
  display: inline-block;
  font-family: 'Inter', sans-serif;
  font-size: .78rem;
  letter-spacing: .28em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1rem;
  position: relative;
  padding-left: 28px;
}
.eyebrow::before {
  content: '';
  position: absolute;
  left: 0; top: 50%;
  width: 18px; height: 1px;
  background: var(--gold);
  transform: translateY(-50%);
}

/* ---------- NAV ---------- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 18px 0;
  transition: background .35s var(--ease), padding .35s var(--ease), backdrop-filter .35s var(--ease);
}
.nav.scrolled {
  background: rgba(11, 13, 16, 0.85);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: 'Cormorant Garamond', serif;
  font-weight: 600;
  font-size: 1.4rem;
  letter-spacing: .02em;
  color: var(--text);
}
.brand-mark {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--gold), #8a6f3e);
  display: grid;
  place-items: center;
  color: #1a1a1a;
  font-weight: 700;
  font-family: 'Inter', sans-serif;
  font-size: .9rem;
  box-shadow: 0 6px 20px rgba(201, 168, 106, 0.35);
}
.nav-links {
  display: flex;
  gap: 36px;
  align-items: center;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-links a {
  font-size: .95rem;
  color: var(--text-muted);
  position: relative;
  padding: 6px 0;
}
.nav-links a:hover, .nav-links a.active {
  color: var(--text);
}
.nav-links a.active::after,
.nav-links a:hover::after {
  content: '';
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 1px;
  background: var(--gold);
}
.nav-cta {
  background: var(--gold);
  color: #1a1a1a !important;
  padding: 10px 22px;
  border-radius: 999px;
  font-weight: 600;
  font-size: .9rem;
  transition: transform .25s var(--ease), background .25s var(--ease);
}
.nav-cta:hover {
  background: var(--gold-2);
  transform: translateY(-2px);
  color: #1a1a1a !important;
}
.nav-toggle {
  display: none;
  background: transparent;
  border: 0;
  color: var(--text);
  font-size: 1.6rem;
  cursor: pointer;
}

/* ---------- HERO ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: 140px 0 80px;
}
.hero::before {
  content: '';
  position: absolute; inset: 0;
  background:
    linear-gradient(180deg, rgba(11,13,16,.55) 0%, rgba(11,13,16,.7) 50%, rgba(11,13,16,1) 100%),
    url('https://images.unsplash.com/photo-1530841344095-502b6c7b1bb6?auto=format&fit=crop&w=2000&q=80') center/cover no-repeat;
  z-index: -1;
  transform: scale(1.05);
  animation: heroZoom 25s ease-in-out infinite alternate;
}
@keyframes heroZoom {
  from { transform: scale(1.05); }
  to { transform: scale(1.15); }
}
.hero-content {
  max-width: 760px;
}
.hero h1 {
  margin-bottom: .4em;
}
.hero h1 .accent {
  color: var(--gold);
  font-style: italic;
}
.hero p.lead {
  font-size: 1.2rem;
  color: #d3d8dd;
  max-width: 600px;
  margin-bottom: 2.4rem;
}
.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 32px;
  border-radius: 999px;
  font-weight: 600;
  font-size: .98rem;
  letter-spacing: .02em;
  cursor: pointer;
  border: 0;
  transition: transform .25s var(--ease), background .25s var(--ease), color .25s var(--ease), box-shadow .25s var(--ease);
}
.btn-primary {
  background: var(--gold);
  color: #1a1a1a;
  box-shadow: 0 12px 30px rgba(201, 168, 106, 0.3);
}
.btn-primary:hover {
  background: var(--gold-2);
  transform: translateY(-3px);
  color: #1a1a1a;
}
.btn-ghost {
  background: rgba(255,255,255,.06);
  color: var(--text);
  border: 1px solid var(--line);
  backdrop-filter: blur(8px);
}
.btn-ghost:hover {
  background: rgba(255,255,255,.12);
  transform: translateY(-3px);
}

.hero-meta {
  margin-top: 64px;
  display: flex;
  gap: 56px;
  flex-wrap: wrap;
}
.hero-meta div {
  border-left: 1px solid var(--line);
  padding-left: 18px;
}
.hero-meta strong {
  display: block;
  font-family: 'Cormorant Garamond', serif;
  font-size: 2rem;
  color: var(--gold);
}
.hero-meta span {
  font-size: .85rem;
  color: var(--text-muted);
  letter-spacing: .12em;
  text-transform: uppercase;
}

.scroll-cue {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  font-size: .75rem;
  letter-spacing: .3em;
  color: var(--text-muted);
  text-transform: uppercase;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}
.scroll-cue::after {
  content: '';
  width: 1px;
  height: 36px;
  background: linear-gradient(to bottom, var(--gold), transparent);
  animation: scrollCue 2.2s ease-in-out infinite;
}
@keyframes scrollCue {
  0%, 100% { opacity: 1; transform: scaleY(1); }
  50% { opacity: .3; transform: scaleY(.5); }
}

/* ---------- SECTIONS ---------- */
.section {
  padding: 120px 0;
  position: relative;
}
.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 70px;
}
.section-head h2 .accent { color: var(--gold); font-style: italic; }
.section-head p { color: var(--text-muted); font-size: 1.05rem; }

/* ---------- ABOUT ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 80px;
  align-items: center;
}
.about-img {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4/5;
  box-shadow: var(--shadow-lg);
}
.about-img img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 1.2s var(--ease);
}
.about-img:hover img { transform: scale(1.06); }
.about-img::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(160deg, transparent 60%, rgba(0,0,0,.5));
  pointer-events: none;
}

.about-features {
  margin-top: 36px;
  display: grid;
  gap: 20px;
}
.feature {
  display: flex;
  gap: 18px;
  align-items: flex-start;
}
.feature-icon {
  flex-shrink: 0;
  width: 46px; height: 46px;
  border-radius: 12px;
  background: rgba(201,168,106,.12);
  border: 1px solid rgba(201,168,106,.2);
  display: grid; place-items: center;
  color: var(--gold);
  font-size: 1.2rem;
}
.feature h4 { margin: 0 0 4px; color: var(--text); font-family: 'Inter', sans-serif; font-weight: 600; font-size: 1.05rem; }
.feature p { margin: 0; font-size: .95rem; }

/* ---------- ACTIVITIES GRID ---------- */
.activities {
  background: linear-gradient(180deg, var(--bg) 0%, var(--bg-elev) 100%);
}
.activity-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.activity-card {
  position: relative;
  display: block;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4/5;
  background: var(--bg-card);
  cursor: pointer;
  transform: translateY(0);
  transition: transform .5s var(--ease), box-shadow .5s var(--ease);
  border: 1px solid var(--line);
}
.activity-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  color: var(--text);
}
.activity-card .img {
  position: absolute; inset: 0;
  background-size: cover;
  background-position: center;
  transition: transform 1.2s var(--ease);
}
.activity-card:hover .img { transform: scale(1.08); }
.activity-card::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 30%, rgba(0,0,0,.85) 100%);
  z-index: 1;
}
.activity-card .body {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  z-index: 2;
  padding: 28px;
  transform: translateY(0);
  transition: transform .5s var(--ease);
}
.activity-card .duration {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: .75rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 10px;
}
.activity-card h3 {
  color: var(--text);
  margin: 0 0 8px;
  font-size: 1.5rem;
}
.activity-card p {
  margin: 0;
  font-size: .92rem;
  color: rgba(232,235,239,.75);
  opacity: 0;
  max-height: 0;
  transition: opacity .4s var(--ease), max-height .4s var(--ease), margin-top .4s var(--ease);
}
.activity-card:hover p {
  opacity: 1;
  max-height: 100px;
  margin-top: 6px;
}
.activity-card .cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 18px;
  font-size: .85rem;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--gold);
}
.activity-card .cta::after {
  content: '→';
  transition: transform .3s var(--ease);
}
.activity-card:hover .cta::after { transform: translateX(6px); }

/* ---------- WHY US ---------- */
.why {
  background: var(--bg);
}
.why-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.why-card {
  padding: 34px 26px;
  border-radius: var(--radius-md);
  background: var(--bg-card);
  border: 1px solid var(--line);
  transition: transform .35s var(--ease), border-color .35s var(--ease);
}
.why-card:hover {
  transform: translateY(-6px);
  border-color: rgba(201,168,106,.4);
}
.why-card .icon {
  width: 52px; height: 52px;
  border-radius: 14px;
  background: rgba(201,168,106,.12);
  border: 1px solid rgba(201,168,106,.25);
  color: var(--gold);
  display: grid; place-items: center;
  margin-bottom: 22px;
  font-size: 1.4rem;
}
.why-card h4 {
  font-family: 'Inter', sans-serif;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text);
  margin: 0 0 8px;
}
.why-card p { font-size: .92rem; margin: 0; }

/* ---------- CTA STRIP ---------- */
.cta-strip {
  position: relative;
  padding: 100px 0;
  overflow: hidden;
  text-align: center;
}
.cta-strip::before {
  content: '';
  position: absolute; inset: 0;
  background:
    linear-gradient(rgba(11,13,16,.75), rgba(11,13,16,.85)),
    url('https://images.unsplash.com/photo-1527668752968-14dc70a27c95?auto=format&fit=crop&w=2000&q=80') center/cover no-repeat fixed;
  z-index: -1;
}
.cta-strip h2 { margin-bottom: .4em; }
.cta-strip p { font-size: 1.1rem; max-width: 600px; margin: 0 auto 32px; color: #d3d8dd; }

/* ---------- FOOTER ---------- */
.footer {
  background: #07090b;
  border-top: 1px solid var(--line);
  padding: 70px 0 30px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 50px;
}
.footer h5 {
  font-family: 'Inter', sans-serif;
  font-size: .85rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 18px;
  font-weight: 600;
}
.footer ul {
  list-style: none;
  padding: 0; margin: 0;
}
.footer ul li { margin-bottom: 10px; }
.footer ul a { color: var(--text-muted); font-size: .92rem; }
.footer ul a:hover { color: var(--text); }
.footer p { font-size: .92rem; color: var(--text-muted); }
.footer-bottom {
  border-top: 1px solid var(--line);
  padding-top: 26px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  color: var(--text-muted);
  font-size: .85rem;
}

/* =========================================
   ACTIVITY DETAIL PAGE
   ========================================= */
.detail-hero {
  position: relative;
  min-height: 70vh;
  display: flex;
  align-items: flex-end;
  padding: 180px 0 80px;
  overflow: hidden;
}
.detail-hero::before {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(11,13,16,.4) 0%, rgba(11,13,16,.85) 100%), var(--detail-img) center/cover no-repeat;
  z-index: -1;
}
.detail-hero h1 { max-width: 900px; margin-bottom: .2em; }
.detail-hero .lead { font-size: 1.15rem; max-width: 700px; color: #d3d8dd; }

.crumbs {
  display: flex;
  gap: 10px;
  font-size: .8rem;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 24px;
}
.crumbs a:hover { color: var(--gold); }
.crumbs span { color: var(--gold); }

.detail-body {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 70px;
  padding: 100px 0;
  align-items: start;
}
.detail-body h2 { font-size: 2.2rem; }
.detail-body h3 { font-size: 1.4rem; margin-top: 2rem; color: var(--text); font-family: 'Inter', sans-serif; font-weight: 600; }
.detail-body p, .detail-body li { color: var(--text-muted); font-size: 1.02rem; }
.detail-body ul { padding-left: 0; list-style: none; }
.detail-body ul li {
  position: relative;
  padding-left: 26px;
  margin-bottom: 10px;
}
.detail-body ul li::before {
  content: '';
  position: absolute;
  left: 0; top: 12px;
  width: 14px; height: 1px;
  background: var(--gold);
}

.book-card {
  position: sticky;
  top: 120px;
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: var(--shadow-md);
}
.book-card .label {
  font-size: .75rem;
  letter-spacing: .25em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 12px;
}
.book-card h3 {
  margin-bottom: 18px;
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.6rem;
  color: var(--text);
  font-weight: 500;
}
.book-card .meta {
  display: grid;
  gap: 14px;
  margin-bottom: 24px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--line);
}
.book-card .meta-row {
  display: flex;
  justify-content: space-between;
  font-size: .95rem;
  color: var(--text-muted);
}
.book-card .meta-row strong { color: var(--text); font-weight: 500; }
.book-card .btn { width: 100%; justify-content: center; }

.gallery {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 12px;
  margin: 40px 0;
}
.gallery img {
  width: 100%; height: 100%;
  object-fit: cover;
  border-radius: var(--radius-md);
  aspect-ratio: 4/3;
  transition: transform .6s var(--ease);
}
.gallery a:hover img { transform: scale(1.04); }
.gallery a:first-child {
  grid-row: 1 / 3;
}
.gallery a:first-child img { aspect-ratio: 4/5; }

/* =========================================
   CONTACT PAGE
   ========================================= */
.contact-page {
  padding-top: 160px;
}
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 80px;
  padding-bottom: 100px;
}
.contact-info h1 { font-size: clamp(2.2rem, 4.5vw, 3.6rem); margin-bottom: .3em; }
.contact-info .lead { font-size: 1.1rem; margin-bottom: 36px; }
.contact-card {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 22px 24px;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 18px;
}
.contact-card .icon {
  width: 44px; height: 44px;
  border-radius: 12px;
  background: rgba(201,168,106,.12);
  display: grid; place-items: center;
  color: var(--gold);
  flex-shrink: 0;
}
.contact-card span { font-size: .8rem; letter-spacing: .15em; text-transform: uppercase; color: var(--text-muted); display: block; margin-bottom: 4px; }
.contact-card a, .contact-card strong { color: var(--text); font-weight: 500; font-size: 1rem; }

.form {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 44px;
  box-shadow: var(--shadow-md);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field { margin-bottom: 20px; }
.field label {
  display: block;
  font-size: .8rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 8px;
}
.field input, .field textarea, .field select {
  width: 100%;
  padding: 14px 16px;
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: inherit;
  font-size: 1rem;
  transition: border-color .3s var(--ease), background .3s var(--ease);
}
.field input:focus, .field textarea:focus, .field select:focus {
  outline: 0;
  border-color: var(--gold);
  background: #1a1f25;
}
.field textarea { min-height: 140px; resize: vertical; }
.form .btn { width: 100%; justify-content: center; padding: 18px; font-size: 1rem; }

.form-note {
  margin: 20px 0 0;
  padding: 14px 18px;
  border-radius: var(--radius-sm);
  font-size: .92rem;
  text-align: center;
  display: none;
}
.form-note.success {
  background: rgba(80, 180, 120, .1);
  border: 1px solid rgba(80, 180, 120, .35);
  color: #a4ddb6;
  display: block;
}
.form-note.error {
  background: rgba(225, 90, 90, .1);
  border: 1px solid rgba(225, 90, 90, .35);
  color: #f0a9a9;
  display: block;
}

/* =========================================
   ANIMATIONS - reveal on scroll
   ========================================= */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 1s var(--ease), transform 1s var(--ease);
}
.reveal.in {
  opacity: 1;
  transform: translateY(0);
}
.reveal.delay-1 { transition-delay: .1s; }
.reveal.delay-2 { transition-delay: .2s; }
.reveal.delay-3 { transition-delay: .3s; }
.reveal.delay-4 { transition-delay: .4s; }
.reveal.delay-5 { transition-delay: .5s; }
.reveal.delay-6 { transition-delay: .6s; }

/* =========================================
   RESPONSIVE
   ========================================= */
@media (max-width: 980px) {
  .about-grid { grid-template-columns: 1fr; gap: 50px; }
  .about-img { aspect-ratio: 5/4; max-width: 600px; margin: 0 auto; }
  .activity-grid { grid-template-columns: repeat(2, 1fr); }
  .why-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .detail-body { grid-template-columns: 1fr; gap: 40px; }
  .book-card { position: static; }
  .contact-grid { grid-template-columns: 1fr; gap: 50px; }
}

@media (max-width: 640px) {
  .nav-links {
    position: fixed;
    top: 0; right: -100%;
    width: 80%;
    max-width: 360px;
    height: 100vh;
    background: var(--bg-elev);
    flex-direction: column;
    align-items: flex-start;
    padding: 100px 36px;
    gap: 28px;
    transition: right .4s var(--ease);
    border-left: 1px solid var(--line);
  }
  .nav-links.open { right: 0; }
  .nav-toggle { display: block; z-index: 1100; }
  .section { padding: 80px 0; }
  .activity-grid { grid-template-columns: 1fr; }
  .why-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .form { padding: 28px; }
  .form-row { grid-template-columns: 1fr; }
  .gallery { grid-template-columns: 1fr 1fr; }
  .gallery a:first-child { grid-row: auto; grid-column: 1 / -1; }
  .gallery a:first-child img { aspect-ratio: 16/10; }
  .hero-meta { gap: 28px; }
  .hero-meta strong { font-size: 1.5rem; }
}