:root {
  --rotana-blue: #1f5ea8;
  --rotana-blue-deep: #164780;
  --panel: rgba(255, 255, 255, 0.9);
  --panel-border: rgba(31, 94, 168, 0.16);
  --text: #17355f;
  --muted: #6e7d93;
  --shadow: 0 24px 80px rgba(8, 28, 56, 0.18);
}

* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }
body {
  font-family: 'Inter', sans-serif;
  color: var(--text);
  background: #edf3f8;
}

button, a { font: inherit; }

.app-shell {
  height: 100vh;
  width: 100%;
  overflow: hidden;
  position: relative;
}

.viewport {
  position: absolute;
  inset: 0 360px 0 0;
  background: #d9e4ef;
}

.viewport.home {
  background-image: linear-gradient(90deg, rgba(10, 25, 44, 0.62), rgba(10, 25, 44, 0.14)), url('./Fujairah Rotana Exterior.jpg');
  background-size: cover;
  background-position: center center;
}

.viewport iframe {
  width: 100%;
  height: 100%;
  border: 0;
  display: block;
  background: #d9e4ef;
}

.home-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: flex-end;
  padding: 56px;
}

.home-card {
  max-width: 760px;
  padding: 32px 36px;
  border-radius: 28px;
  background: rgba(255,255,255,0.14);
  border: 1px solid rgba(255,255,255,0.22);
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
  color: #fff;
}

.home-card h1 {
  margin: 0;
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(48px, 5.4vw, 84px);
  line-height: 0.95;
  font-weight: 600;
}

.home-card p {
  margin: 16px 0 0;
  font-size: 14px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  opacity: 0.9;
}

.info-chip {
  position: absolute;
  left: 28px;
  top: 28px;
  z-index: 3;
  padding: 10px 14px;
  border-radius: 999px;
  color: white;
  background: rgba(10, 25, 44, 0.46);
  border: 1px solid rgba(255,255,255,0.14);
  backdrop-filter: blur(10px);
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.side-nav {
  position: absolute;
  top: 0;
  right: 0;
  width: 360px;
  height: 100%;
  background: var(--panel);
  backdrop-filter: blur(18px);
  border-left: 1px solid var(--panel-border);
  display: flex;
  flex-direction: column;
  box-shadow: -12px 0 40px rgba(8, 28, 56, 0.08);
}

.brand-block {
  padding: 28px 28px 22px;
  border-bottom: 1px solid var(--panel-border);
}

.brand-block img {
  width: 170px;
  max-width: 100%;
  display: block;
}

.brand-block .subline {
  margin-top: 12px;
  color: var(--muted);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.18em;
}

.nav-scroll {
  overflow: auto;
  padding: 10px 0 24px;
  flex: 1;
}

.top-link,
.group-toggle,
.nav-link {
  width: 100%;
  background: transparent;
  border: 0;
  text-align: left;
  cursor: pointer;
}

.top-link {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 28px;
  color: var(--text);
  border-bottom: 1px solid var(--panel-border);
}

.top-link.active,
.nav-link.active {
  background: rgba(31, 94, 168, 0.08);
  color: var(--rotana-blue-deep);
}

.group {
  border-bottom: 1px solid var(--panel-border);
}

.group-toggle {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 28px;
  color: var(--text);
}

.group-title {
  font-size: 13px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.chevron {
  font-size: 18px;
  color: var(--rotana-blue);
}

.group-items {
  padding: 0 0 12px;
}

.nav-link {
  display: block;
  padding: 11px 28px 11px 44px;
  color: #365172;
  font-size: 14px;
}

.nav-link:hover,
.top-link:hover,
.group-toggle:hover {
  background: rgba(31, 94, 168, 0.05);
}

.mobile-header {
  display: none;
}

.mobile-drawer-toggle {
  display: none;
}

@media (max-width: 900px) {
  .viewport {
    inset: 64px 0 0 0;
  }

  .mobile-header {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 64px;
    z-index: 20;
    background: rgba(255,255,255,0.94);
    border-bottom: 1px solid var(--panel-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 18px;
    backdrop-filter: blur(16px);
  }

  .mobile-header img {
    width: 120px;
  }

  .mobile-drawer-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    border-radius: 50%;
    border: 1px solid var(--panel-border);
    background: white;
    color: var(--rotana-blue-deep);
    font-size: 20px;
    cursor: pointer;
  }

  .side-nav {
    width: min(86vw, 360px);
    z-index: 30;
    transform: translateX(100%);
    transition: transform 0.3s ease;
  }

  .side-nav.open {
    transform: translateX(0);
  }

  .nav-backdrop {
    position: absolute;
    inset: 64px 0 0 0;
    background: rgba(8, 28, 56, 0.28);
    z-index: 25;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
  }

  .nav-backdrop.open {
    opacity: 1;
    pointer-events: auto;
  }

  .home-overlay {
    padding: 24px;
    align-items: flex-end;
  }

  .home-card {
    padding: 24px;
    border-radius: 22px;
  }

  .home-card h1 {
    font-size: clamp(38px, 12vw, 58px);
  }

  .info-chip {
    top: 80px;
    left: 16px;
    right: 16px;
    width: auto;
  }
}


@media (max-width: 900px) {
  .mobile-header {
    height: 72px;
    padding: 0 16px;
  }

  .viewport {
    inset: 72px 0 0 0;
  }

  .nav-backdrop {
    inset: 72px 0 0 0;
  }

  .mobile-header img {
    width: auto;
    max-width: 140px;
    max-height: 34px;
    object-fit: contain;
    display: block;
  }

  .brand-block img {
    width: auto;
    max-width: 160px;
    max-height: 52px;
    object-fit: contain;
  }

  .info-chip {
    display: none;
  }

  .home-overlay {
    padding: 20px;
  }

  .home-card {
    max-width: calc(100% - 8px);
    padding: 20px 22px;
    border-radius: 20px;
  }

  .home-card h1 {
    font-size: clamp(32px, 10vw, 48px);
  }

  .home-card p {
    font-size: 12px;
    letter-spacing: 0.16em;
  }
}