/* ============================================================
   Portalis VR — "Step Into Another World"
   Style tokens from DESIGN.md (Auros — abyssal terminal, dark)
   Mobile-first · breakpoints: 480 / 768 / 1024 / 1200
   ============================================================ */

:root {
  /* Colors */
  --color-liquid-abyss: #012624;
  --color-liquid-deep: #011d1c;
  --color-liquid-kelp: #003734;
  --color-liquid-mist: #edfffe;
  --color-platinum: #ffffff;
  --color-silver-mist: #bbc7c6;
  --color-ash: #f2f2f2;
  --color-slate-deep: #707777;
  --color-lavender-phosphor: #fde9ff;
  --gradient-bioluminescent: linear-gradient(90deg, rgb(0, 130, 124) 0%, rgb(203, 255, 252) 100%);
  --gradient-aurora: linear-gradient(90deg, rgb(203, 255, 252) 0%, rgb(237, 255, 254) 26.25%, rgb(255, 253, 250) 47.57%, rgb(250, 209, 255) 88.96%);

  /* Typography */
  --font-matter: 'Inter', ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-arial: 'Arial', ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-weight-regular: 400;
  --font-weight-medium: 500;

  --text-caption: 10px;
  --text-body: 16px;
  --text-subheading: 24px;
  --text-heading: 36px;
  --text-heading-lg: 61px;
  --text-display: 96px;

  /* Spacing */
  --spacing-12: 12px;  --spacing-16: 16px;  --spacing-20: 20px;
  --spacing-24: 24px;  --spacing-28: 28px;  --spacing-32: 32px;
  --spacing-36: 36px;  --spacing-40: 40px;  --spacing-48: 48px;
  --spacing-64: 64px;  --spacing-80: 80px;  --spacing-120: 120px;
  --spacing-140: 140px; --spacing-160: 160px;

  /* Layout & shape */
  --page-max-width: 1440px;
  --section-gap: 68px;
  --radius-cards: 16px;
  --radius-buttons: 6px;
  --radius-small: 6px;
}

/* ---------- Reset & base ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  background: var(--color-liquid-abyss);
  color: var(--color-silver-mist);
  font-family: var(--font-matter);
  font-weight: var(--font-weight-regular);
  font-size: var(--text-body);
  line-height: 1.4;
  -webkit-font-smoothing: antialiased;
}

img { display: block; max-width: 100%; }

h1, h2, h3 {
  color: var(--color-platinum);
  font-weight: var(--font-weight-medium);
}

a { color: var(--color-silver-mist); text-decoration: none; }

ul, ol { list-style: none; }

/* ---------- Shared layout ---------- */
.container {
  width: 100%;
  max-width: var(--page-max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-20);
}

.container-narrow { max-width: 860px; }

.section { padding: var(--spacing-80) 0; }

.section-recessed { background: var(--color-liquid-deep); }

.eyebrow {
  font-size: 12px;
  font-weight: var(--font-weight-medium);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-silver-mist);
  margin-bottom: var(--spacing-16);
}

.section-title {
  font-size: clamp(2.1rem, 4.5vw, 3rem);
  line-height: 1.0;
  letter-spacing: -0.04em;
  margin-bottom: var(--spacing-24);
}

.section-lead {
  max-width: 600px;
  color: var(--color-silver-mist);
  margin-bottom: var(--spacing-48);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-arial);
  font-size: 14px;
  line-height: 1.43;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border-radius: var(--radius-buttons);
  padding: 14px 22px;
  border: none;
  cursor: pointer;
  transition: opacity 0.25s ease, transform 0.25s ease;
}

.btn:hover { opacity: 0.88; transform: translateY(-1px); }

.btn-gradient {
  background: var(--gradient-aurora);
  color: #222222;
}

.btn-kelp {
  background: var(--color-liquid-kelp);
  color: var(--color-platinum);
}

.btn-ghost {
  background: transparent;
  color: var(--color-platinum);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

/* ---------- Header / Nav ---------- */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 50;
  padding: var(--spacing-12) var(--spacing-20);
}

.nav-shell {
  max-width: var(--page-max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-16);
  background: rgba(1, 29, 28, 0.85);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-cards);
  padding: var(--spacing-12) var(--spacing-20);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--color-platinum);
}

.brand-mark {
  width: 32px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-small);
  background: rgba(3, 81, 75, 0.5);
  color: var(--color-platinum);
  font-size: 14px;
}

.brand-name {
  font-size: 16px;
  font-weight: var(--font-weight-medium);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.nav-toggle {
  background: rgba(3, 81, 75, 0.5);
  border: none;
  border-radius: var(--radius-small);
  color: var(--color-platinum);
  width: 40px;
  height: 40px;
  font-size: 16px;
  cursor: pointer;
}

.primary-nav {
  display: none;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--spacing-16);
  width: 100%;
}

.primary-nav.open { display: flex; }

.nav-link {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-silver-mist);
  transition: color 0.2s ease;
}

.nav-link:hover,
.nav-link.active { color: var(--color-platinum); }

.nav-cta { padding: 10px 22px; }

@media (min-width: 768px) {
  .nav-toggle { display: none; }
  .primary-nav {
    display: flex;
    flex-direction: row;
    align-items: center;
    width: auto;
    gap: var(--spacing-24);
  }
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: var(--spacing-120) 0 var(--spacing-80);
}

.hero-media { position: absolute; inset: 0; }

.hero-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.hero-veil {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(1, 38, 36, 0.55) 0%, rgba(1, 38, 36, 0.75) 55%, var(--color-liquid-abyss) 100%);
}

/* Portal particles (populated by script.js) */
.portal-particles {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  transition: transform 0.6s cubic-bezier(0.22, 1, 0.36, 1);
  will-change: transform;
}

.particle {
  position: absolute;
  bottom: -8%;
  border-radius: 50%;
  filter: blur(6px);
  opacity: 0;
  animation-name: portal-rise;
  animation-timing-function: linear;
  animation-iteration-count: infinite;
  will-change: transform, opacity;
}

@keyframes portal-rise {
  0%   { transform: translate(0, 0) scale(1); opacity: 0; }
  12%  { opacity: var(--p-opacity, 0.6); }
  85%  { opacity: var(--p-opacity, 0.6); }
  100% { transform: translate(var(--p-drift, 120px), -115vh) scale(0.6); opacity: 0; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .particle { animation: none !important; opacity: 0.25; bottom: auto; top: var(--p-top, 50%); }
  .portal-particles { transition: none; }
  .btn:hover { transform: none; }
}

.hero-inner {
  position: relative;
  z-index: 2;
  max-width: var(--page-max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-20);
  width: 100%;
}

.hero .eyebrow { color: var(--color-liquid-mist); }

.hero-title {
  font-size: clamp(2.5rem, 8vw, 6rem);
  line-height: 1.0;
  letter-spacing: -0.046em;
  margin-bottom: var(--spacing-24);
}

.hero-sub {
  max-width: 600px;
  color: var(--color-ash);
  margin-bottom: var(--spacing-32);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-16);
  margin-bottom: var(--spacing-48);
}

.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-40);
}

.hero-stats li { display: flex; flex-direction: column; gap: 6px; }

.stat-number {
  color: var(--color-lavender-phosphor);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: var(--font-weight-medium);
  line-height: 1.0;
  letter-spacing: -0.02em;
}

.stat-label {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-liquid-mist);
}

/* ---------- Card grids ---------- */
.card-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-24);
}

@media (min-width: 768px) {
  .card-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .card-grid { grid-template-columns: repeat(3, 1fr); }
}

.surface-card {
  background: var(--color-liquid-kelp);
  border-radius: var(--radius-cards);
  overflow: hidden;
}

.section-recessed .surface-card { background: var(--color-liquid-kelp); }

.card-media { aspect-ratio: 16 / 10; overflow: hidden; }

.card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.surface-card:hover .card-media img { transform: scale(1.04); }

.card-body {
  padding: var(--spacing-36);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-16);
}

.card-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--spacing-12);
}

.card-body h3 {
  font-size: var(--text-subheading);
  line-height: 1.3;
  letter-spacing: -0.02em;
}

.card-icon { color: var(--color-liquid-mist); font-size: 18px; margin-right: 4px; }

.card-body p { color: var(--color-silver-mist); }

.card-meta {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-liquid-mist);
}

.arrow-btn {
  flex: 0 0 auto;
  width: 32px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-small);
  background: rgba(3, 81, 75, 0.5);
  color: var(--color-platinum);
  font-size: 12px;
  transition: background 0.2s ease;
}

.arrow-btn:hover { background: rgba(3, 81, 75, 0.9); }

/* ---------- How it works timeline ---------- */
.timeline {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-32);
  counter-reset: step;
  position: relative;
}

@media (min-width: 768px) {
  .timeline { grid-template-columns: repeat(3, 1fr); gap: var(--spacing-24); }
  .timeline::before {
    content: "";
    position: absolute;
    top: 32px;
    left: 8%;
    right: 8%;
    height: 1px;
    background: rgba(255, 255, 255, 0.1);
  }
}

.timeline-step {
  position: relative;
  background: var(--color-liquid-deep);
  border-radius: var(--radius-cards);
  padding: var(--spacing-36);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-12);
}

.step-icon {
  width: 64px;
  height: 64px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-cards);
  background: var(--color-liquid-kelp);
  color: var(--color-liquid-mist);
  font-size: 24px;
  margin-bottom: var(--spacing-12);
}

.step-number {
  color: var(--color-lavender-phosphor);
  font-size: 13px;
  font-weight: var(--font-weight-medium);
  text-transform: uppercase;
  letter-spacing: 0.15em;
}

.timeline-step h3 { font-size: var(--text-subheading); letter-spacing: -0.02em; }

/* ---------- Packages ---------- */
.package-price {
  color: var(--color-lavender-phosphor);
  font-size: clamp(2rem, 4vw, 2.6rem);
  font-weight: var(--font-weight-medium);
  line-height: 1.0;
  letter-spacing: -0.02em;
}

.package-price span {
  font-size: 13px;
  color: var(--color-liquid-mist);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.package-list { display: flex; flex-direction: column; gap: 10px; }

.package-list li {
  display: flex;
  gap: 10px;
  align-items: baseline;
  color: var(--color-silver-mist);
}

.package-list i { color: var(--color-liquid-mist); font-size: 12px; }

.package-card .btn { margin-top: var(--spacing-12); align-self: flex-start; }

/* ---------- Testimonials ---------- */
.testimonial-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-24);
}

@media (min-width: 768px) {
  .testimonial-grid { grid-template-columns: repeat(3, 1fr); }
}

.testimonial-card {
  padding: var(--spacing-36);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: var(--spacing-24);
}

.quote-icon { color: var(--color-liquid-mist); font-size: 20px; margin-bottom: var(--spacing-12); display: block; }

.testimonial-card blockquote p { color: var(--color-ash); }

.testimonial-card figcaption {
  display: flex;
  align-items: center;
  gap: var(--spacing-16);
}

.testimonial-card figcaption img {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  object-fit: cover;
}

.t-name {
  display: block;
  color: var(--color-platinum);
  font-weight: var(--font-weight-medium);
}

.t-role {
  display: block;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-silver-mist);
  margin-top: 4px;
}

/* ---------- Booking form ---------- */
.booking-form {
  padding: var(--spacing-36);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-24);
}

@media (min-width: 768px) {
  .booking-form { padding: var(--spacing-48); }
}

.form-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-24);
}

@media (min-width: 768px) {
  .form-row { grid-template-columns: 1fr 1fr; }
}

.form-field { display: flex; flex-direction: column; gap: 8px; }

.form-field label {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-liquid-mist);
  font-weight: var(--font-weight-medium);
}

.form-field label i { margin-right: 6px; color: var(--color-silver-mist); }

.form-field input,
.form-field select {
  background: var(--color-liquid-deep);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-small);
  color: var(--color-liquid-mist);
  font-family: var(--font-matter);
  font-size: var(--text-body);
  padding: 14px var(--spacing-16);
  width: 100%;
  transition: border-color 0.2s ease;
}

.form-field input::placeholder { color: var(--color-slate-deep); }

.form-field input:focus,
.form-field select:focus {
  outline: none;
  border-color: rgb(0, 130, 124);
}

.form-field select { appearance: none; }

.form-field input[type="date"] { color-scheme: dark; }

.form-field.invalid input,
.form-field.invalid select { border-color: rgb(250, 209, 255); }

.field-error {
  min-height: 1em;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--color-lavender-phosphor);
}

.btn-submit { align-self: flex-start; }

.form-status { min-height: 1.4em; color: var(--color-liquid-mist); }

.form-status.success { color: var(--color-lavender-phosphor); }

.form-status.error { color: var(--color-lavender-phosphor); }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--color-liquid-deep);
  padding: var(--spacing-120) 0 var(--spacing-40);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-48);
  margin-bottom: var(--spacing-64);
}

@media (min-width: 768px) {
  .footer-grid { grid-template-columns: 2fr 1fr 1fr; }
}

.footer-brand p { margin-top: var(--spacing-20); max-width: 380px; }

.footer-col h3 {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-liquid-mist);
  margin-bottom: var(--spacing-20);
}

.footer-col a,
.footer-col p {
  display: block;
  color: var(--color-silver-mist);
  margin-bottom: var(--spacing-12);
}

.footer-col a:hover { color: var(--color-platinum); }

.footer-col p i { margin-right: 8px; color: var(--color-liquid-mist); }

.footer-bottom {
  padding-top: var(--spacing-24);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 13px;
  color: var(--color-slate-deep);
}

/* ---------- Breakpoint fine-tuning ---------- */
@media (min-width: 480px) {
  .container { padding: 0 var(--spacing-24); }
}

@media (min-width: 1024px) {
  .section { padding: var(--spacing-120) 0; }
}

@media (min-width: 1200px) {
  .container { padding: 0 var(--spacing-40); }
  .section-title { margin-bottom: var(--spacing-32); }
}