:root {
  --alt-abyss: #0a0d14;
  --alt-surface: #121824;
  --alt-snow: #f8fafc;
  --alt-smoke: #94a3b8;
  --alt-charcoal: #1e293b;
  --alt-ink: #0f172a;
  --alt-pulse: #ff4757;
  --alt-pulse-hover: #e03e4d;
  --alt-sky: #00d2fc;
  --alt-gradient: linear-gradient(135deg, #121824 0%, #0a0d14 100%);
  --alt-accent-gradient: linear-gradient(135deg, #ff4757 0%, #00d2fc 100%);
  --font-display: 'Oswald', sans-serif;
  --font-body: 'Inter', sans-serif;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-body);
  background-color: var(--alt-snow);
  color: var(--alt-ink);
  line-height: 1.6;
}

/* Scroll-driven progress bar */
.alt-scroll-tracker {
  position: fixed;
  top: 0;
  left: 0;
  height: 4px;
  background: var(--alt-accent-gradient);
  width: 0;
  z-index: 10000;
  animation: alt-track-fill linear;
  animation-timeline: scroll();
}

@keyframes alt-track-fill {
  to { width: 100%; }
}

/* Header & Navigation */
.alt-masthead {
  position: sticky;
  top: 0;
  z-index: 999;
  background-color: var(--alt-surface);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding: 1rem 2rem;
}

.alt-masthead-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
}

.alt-logo-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--alt-snow);
  font-family: var(--font-display);
  font-size: 1.5rem;
  letter-spacing: 1px;
}

.alt-logo-icon {
  width: 40px;
  height: 40px;
  fill: var(--alt-pulse);
}

.alt-nav-links {
  display: flex;
  gap: 2rem;
  align-items: center;
}

.alt-nav-links a {
  color: var(--alt-smoke);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  transition: color 0.3s ease;
  font-family: var(--font-display);
  text-transform: uppercase;
}

.alt-nav-links a:hover {
  color: var(--alt-sky);
}

/* Hamburger CSS-only */
.alt-burger-input {
  display: none;
}

.alt-burger-label {
  display: none;
  cursor: pointer;
  flex-direction: column;
  gap: 5px;
  width: 30px;
}

.alt-burger-label span {
  display: block;
  height: 3px;
  width: 100%;
  background-color: var(--alt-snow);
  border-radius: 2px;
  transition: 0.3s;
}

/* Hero Section (Preset A) */
.alt-hero-viewport {
  position: relative;
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-image: url('img/bg.webp');
  background-size: cover;
  background-position: center;
  text-align: center;
  padding: 0 1.5rem;
}

.alt-hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(10, 13, 20, 0.75);
  z-index: 1;
}

.alt-hero-interior {
  position: relative;
  z-index: 2;
  max-width: 800px;
  color: var(--alt-snow);
}

.alt-hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  line-height: 1.1;
  margin-bottom: 1.5rem;
  text-transform: uppercase;
  letter-spacing: 2px;
}

.alt-hero-subtitle {
  font-size: clamp(1.1rem, 2.5vw, 1.4rem);
  color: var(--alt-smoke);
  margin-bottom: 2.5rem;
  max-width: 650px;
  margin-left: auto;
  margin-right: auto;
}

/* Buttons */
.alt-action-pill {
  display: inline-block;
  padding: 1rem 2.5rem;
  border-radius: 999px;
  background: var(--alt-accent-gradient);
  color: var(--alt-snow);
  text-decoration: none;
  font-family: var(--font-display);
  font-weight: bold;
  font-size: 1.1rem;
  letter-spacing: 1px;
  box-shadow: 0 4px 15px rgba(255, 71, 87, 0.4);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  border: none;
  cursor: pointer;
}

.alt-action-pill:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255, 71, 87, 0.6);
}

/* Floating Stats Bar */
.alt-stats-board {
  position: relative;
  margin-top: -60px;
  z-index: 10;
  max-width: 1100px;
  margin-left: auto;
  margin-right: auto;
  padding: 0 1.5rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
}

.alt-stat-panel {
  background: var(--alt-surface);
  border-left: 4px solid var(--alt-pulse);
  border-radius: 12px;
  padding: 2rem;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
  color: var(--alt-snow);
  text-align: center;
}

.alt-stat-number {
  font-family: var(--font-display);
  font-size: 3rem;
  color: var(--alt-sky);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.alt-stat-label {
  font-size: 0.95rem;
  color: var(--alt-smoke);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* Zigzag Content Sections */
.alt-zigzag-sec {
  padding: 10dvh 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.alt-staggered-strip {
  display: flex;
  align-items: center;
  gap: 4rem;
  margin-bottom: 8dvh;
}

.alt-staggered-strip:last-child {
  margin-bottom: 0;
}

.alt-staggered-strip:nth-child(even) {
  flex-direction: row-reverse;
}

.alt-visual-wrapper {
  flex: 1;
  position: relative;
}

.alt-visual-portrait {
  width: 100%;
  height: 450px;
  object-fit: cover;
  border-radius: 16px;
  box-shadow: 0 15px 35px rgba(0,0,0,0.1);
}

.alt-slant-right {
  clip-path: polygon(0 0, 100% 0, 90% 100%, 0% 100%);
}

.alt-slant-left {
  clip-path: polygon(10% 0, 100% 0, 100% 100%, 0% 100%);
}

.alt-textual-wrapper {
  flex: 1;
}

.alt-small-tag {
  color: var(--alt-pulse);
  text-transform: uppercase;
  font-family: var(--font-display);
  font-weight: bold;
  letter-spacing: 1.5px;
  font-size: 0.9rem;
  display: block;
  margin-bottom: 0.75rem;
}

.alt-section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 2.8rem);
  color: var(--alt-charcoal);
  line-height: 1.2;
  margin-bottom: 1.5rem;
}

.alt-section-paragraph {
  color: #475569;
  font-size: 1.05rem;
  margin-bottom: 1.5rem;
}

/* Features Grid */
.alt-features-block {
  background-color: var(--alt-surface);
  color: var(--alt-snow);
  padding: 10dvh 2rem;
}

.alt-features-block-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.alt-features-header {
  text-align: center;
  margin-bottom: 6dvh;
}

.alt-features-header h2 {
  font-family: var(--font-display);
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.alt-features-header p {
  color: var(--alt-smoke);
  max-width: 600px;
  margin: 0 auto;
}

.alt-perks-matrix {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.alt-perk-node {
  background-color: rgba(255, 255, 255, 0.03);
  border-left: 4px solid var(--alt-sky);
  padding: 2.5rem;
  border-radius: 12px;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.alt-perk-node:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
}

.alt-perk-icon {
  width: 48px;
  height: 48px;
  fill: var(--alt-sky);
  margin-bottom: 1.5rem;
}

.alt-perk-title {
  font-family: var(--font-display);
  font-size: 1.4rem;
  margin-bottom: 1rem;
  color: var(--alt-snow);
}

.alt-perk-desc {
  color: var(--alt-smoke);
  font-size: 0.95rem;
}

/* How It Works Timeline */
.alt-timeline-sec {
  padding: 10dvh 2rem;
  background-color: var(--alt-snow);
}

.alt-timeline-sec-inner {
  max-width: 1000px;
  margin: 0 auto;
}

.alt-timeline-title {
  text-align: center;
  font-family: var(--font-display);
  font-size: 2.5rem;
  margin-bottom: 6dvh;
  color: var(--alt-charcoal);
}

.alt-flow-chronicle {
  position: relative;
  padding: 2rem 0;
}

.alt-flow-chronicle::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 2px;
  background-color: #cbd5e1;
  transform: translateX(-50%);
}

.alt-chronicle-item {
  position: relative;
  margin-bottom: 4rem;
  width: 100%;
}

.alt-chronicle-item::after {
  content: '';
  display: table;
  clear: both;
}

.alt-chronicle-circle {
  position: absolute;
  left: 50%;
  top: 0;
  transform: translateX(-50%);
  width: 40px;
  height: 40px;
  background: var(--alt-accent-gradient);
  border-radius: 50%;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--alt-snow);
  font-family: var(--font-display);
  font-weight: bold;
}

.alt-chronicle-box {
  width: 45%;
  padding: 2rem;
  background: white;
  border-radius: 12px;
  box-shadow: 0 10px 25px rgba(0,0,0,0.05);
}

.alt-chronicle-item:nth-child(odd) .alt-chronicle-box {
  float: left;
  text-align: right;
}

.alt-chronicle-item:nth-child(even) .alt-chronicle-box {
  float: right;
  text-align: left;
}

.alt-chronicle-headline {
  font-family: var(--font-display);
  font-size: 1.3rem;
  color: var(--alt-charcoal);
  margin-bottom: 0.75rem;
}

.alt-chronicle-text {
  color: #64748b;
  font-size: 0.95rem;
}

/* CTA Strip */
.alt-action-panel {
  position: relative;
  background-image: url('img/bg.webp');
  background-size: cover;
  background-attachment: fixed;
  background-position: center;
  padding: 8dvh 2rem;
  text-align: center;
}

.alt-action-panel-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(10, 13, 20, 0.85);
  z-index: 1;
}

.alt-action-panel-inner {
  position: relative;
  z-index: 2;
  max-width: 800px;
  margin: 0 auto;
  color: var(--alt-snow);
}

.alt-action-panel-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.2;
  margin-bottom: 1.5rem;
}

.alt-action-panel-subtitle {
  color: var(--alt-smoke);
  font-size: 1.1rem;
  margin-bottom: 2rem;
}

/* Forms */
.alt-booking-form-wrapper {
  max-width: 600px;
  margin: 0 auto;
  background: white;
  padding: 3rem;
  border-radius: 16px;
  box-shadow: 0 15px 35px rgba(0,0,0,0.08);
}

.alt-form-group {
  margin-bottom: 1.5rem;
}

.alt-form-label {
  display: block;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--alt-charcoal);
  font-size: 0.9rem;
}

.alt-form-control {
  width: 100%;
  padding: 1rem;
  border: 1px solid #cbd5e1;
  border-radius: 8px;
  font-family: var(--font-body);
  font-size: 1rem;
  transition: border-color 0.3s;
}

.alt-form-control:focus {
  border-color: var(--alt-pulse);
  outline: none;
}

.alt-form-checkbox {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-top: 1.5rem;
  cursor: pointer;
}

.alt-form-checkbox input {
  margin-top: 0.25rem;
}

.alt-form-checkbox p {
  font-size: 0.85rem;
  color: #64748b;
}

.alt-form-checkbox a {
  color: var(--alt-pulse);
  text-decoration: underline;
}

/* FAQ Accordion (CSS-only) */
.alt-faq-accordion {
  margin-top: 6dvh;
}

.alt-faq-accordion h2 {
  text-align: center;
  font-family: var(--font-display);
  font-size: 2.2rem;
  margin-bottom: 2rem;
}

.alt-accordion-node {
  background: white;
  margin-bottom: 1rem;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
  padding: 1.5rem;
}

.alt-accordion-q {
  font-family: var(--font-display);
  font-size: 1.2rem;
  color: var(--alt-charcoal);
  margin-bottom: 0.5rem;
}

.alt-accordion-a {
  color: #64748b;
  font-size: 0.95rem;
}

/* Cookie Banner */
.alt-cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background-color: var(--alt-surface);
  color: var(--alt-snow);
  padding: 1.5rem 2rem;
  z-index: 9999;
  box-shadow: 0 -10px 30px rgba(0,0,0,0.25);
  display: none;
}

.alt-cookie-banner-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 2rem;
}

.alt-cookie-text {
  font-size: 0.95rem;
  color: var(--alt-smoke);
}

.alt-cookie-btns {
  display: flex;
  gap: 1rem;
}

.alt-cookie-accept {
  padding: 0.75rem 1.5rem;
  background-color: var(--alt-pulse);
  color: white;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-weight: bold;
}

.alt-cookie-decline {
  padding: 0.75rem 1.5rem;
  background-color: transparent;
  color: var(--alt-smoke);
  border: 1px solid var(--alt-smoke);
  border-radius: 6px;
  cursor: pointer;
}

/* Footer Section */
.alt-footer {
  background-color: var(--alt-abyss);
  color: var(--alt-smoke);
  padding: 6rem 2rem 3rem;
  border-top: 1px solid rgba(255,255,255,0.08);
}

.alt-footer-top {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 4rem;
  margin-bottom: 4rem;
}

.alt-footer-about h3 {
  font-family: var(--font-display);
  font-size: 1.8rem;
  color: var(--alt-snow);
  margin-bottom: 1.5rem;
}

.alt-footer-about p {
  font-size: 0.95rem;
  line-height: 1.6;
}

.alt-footer-links h4 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  color: var(--alt-snow);
  margin-bottom: 1.5rem;
  text-transform: uppercase;
}

.alt-footer-links-list {
  list-style: none;
}

.alt-footer-links-list li {
  margin-bottom: 0.75rem;
}

.alt-footer-links-list a {
  color: var(--alt-smoke);
  text-decoration: none;
  font-size: 0.95rem;
  transition: color 0.3s;
}

.alt-footer-links-list a:hover {
  color: var(--alt-sky);
}

.alt-footer-disclaimer {
  max-width: 1200px;
  margin: 0 auto;
  padding-top: 2rem;
  border-top: 1px solid rgba(255,255,255,0.08);
  font-size: 0.85rem;
  line-height: 1.5;
  text-align: center;
  margin-bottom: 2rem;
}

.alt-footer-copyright {
  text-align: center;
  font-size: 0.85rem;
  color: #475569;
}

/* Scroll Animations */
.alt-view-reveal {
  animation: alt-fade-reveal 0.6s linear both;
  animation-timeline: view();
  animation-range: entry 0% entry 30%;
}

@keyframes alt-fade-reveal {
  from {
    opacity: 0;
    transform: translateY(40px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Media Queries */
@media (max-width: 991px) {
  .alt-staggered-strip {
    flex-direction: column !important;
    gap: 2rem;
  }
  .alt-visual-portrait {
    height: 300px;
    clip-path: none !important;
  }
  .alt-flow-chronicle::before {
    left: 20px;
  }
  .alt-chronicle-circle {
    left: 20px;
  }
  .alt-chronicle-box {
    width: calc(100% - 50px);
    float: right !important;
    text-align: left !important;
  }
  .alt-footer-top {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
}

@media (max-width: 768px) {
  .alt-burger-label {
    display: flex;
  }
  .alt-nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background-color: var(--alt-surface);
    flex-direction: column;
    padding: 2rem;
    gap: 1.5rem;
    border-bottom: 1px solid rgba(255,255,255,0.08);
  }
  .alt-burger-input:checked ~ .alt-nav-links {
    display: flex;
  }
  .alt-stats-board {
    margin-top: -30px;
    grid-template-columns: 1fr;
  }
  .alt-cookie-banner-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }
  .alt-cookie-btns {
    width: 100%;
    justify-content: flex-end;
  }
}