/* Singapore Wander — styles */

:root {
  --color-bg: #f7f4ef;
  --color-bg-alt: #efeae2;
  --color-surface: #ffffff;
  --color-ink: #1a1f1e;
  --color-ink-muted: #4a524f;
  --color-accent: #c45c3e;
  --color-accent-dark: #9a4330;
  --color-teal: #1e4d47;
  --color-teal-soft: #2d6b62;
  --color-gold: #c9a227;
  --font-sans: "Source Sans 3", system-ui, sans-serif;
  --font-display: "Fraunces", Georgia, serif;
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.75rem;
  --space-lg: 3rem;
  --space-xl: 5rem;
  --radius: 12px;
  --radius-lg: 20px;
  --shadow: 0 18px 50px rgba(26, 31, 30, 0.12);
  --shadow-soft: 0 8px 30px rgba(26, 31, 30, 0.08);
  --header-h: 72px;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 12px);
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--color-ink);
  background: var(--color-bg);
}

img {
  max-width: 100%;
  height: auto;
  vertical-align: middle;
}

a {
  color: var(--color-teal-soft);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

a:hover {
  color: var(--color-accent);
}

.skip-link {
  position: absolute;
  left: -9999px;
  z-index: 9999;
  padding: var(--space-sm);
  background: var(--color-surface);
  color: var(--color-ink);
}

.skip-link:focus {
  left: var(--space-sm);
  top: var(--space-sm);
}

.container {
  width: min(1120px, 92vw);
  margin-inline: auto;
}

.container.narrow {
  max-width: 720px;
}

/* Header */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(247, 244, 239, 0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(30, 77, 71, 0.08);
  transition: box-shadow 0.3s var(--ease-out), background 0.3s;
}

.site-header.is-scrolled {
  box-shadow: var(--shadow-soft);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(1120px, 92vw);
  margin-inline: auto;
  min-height: var(--header-h);
  padding-block: var(--space-xs);
}

.logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.35rem;
  color: var(--color-ink);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.logo span {
  color: var(--color-teal);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  padding: 10px;
  background: transparent;
  border: none;
  cursor: pointer;
}

.nav-toggle-bar {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-ink);
  border-radius: 2px;
  transition: transform 0.25s var(--ease-out), opacity 0.2s;
}

.site-nav ul {
  display: flex;
  gap: var(--space-md);
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-nav a {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--color-ink-muted);
  text-decoration: none;
}

.site-nav a:hover {
  color: var(--color-accent);
}

@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
    z-index: 102;
  }

  .site-nav {
    position: fixed;
    inset: 0;
    top: var(--header-h);
    background: var(--color-bg);
    padding: var(--space-lg);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: transform 0.35s var(--ease-out), opacity 0.3s, visibility 0.3s;
  }

  .site-nav.is-open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .site-nav ul {
    flex-direction: column;
    gap: var(--space-md);
    align-items: flex-start;
  }

  .site-nav a {
    font-size: 1.25rem;
  }

  .nav-toggle.is-open .nav-toggle-bar:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }

  .nav-toggle.is-open .nav-toggle-bar:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle.is-open .nav-toggle-bar:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }
}

/* Hero */

.hero {
  position: relative;
  min-height: min(92vh, 860px);
  display: flex;
  align-items: flex-end;
  padding: calc(var(--header-h) + var(--space-lg)) var(--space-md) var(--space-xl);
  margin-top: 0;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url("https://images.pexels.com/photos/1485894/pexels-photo-1485894.jpeg?auto=compress&cs=tinysrgb&w=1920");
  background-size: cover;
  background-position: center 35%;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    165deg,
    rgba(26, 31, 30, 0.15) 0%,
    rgba(30, 77, 71, 0.55) 45%,
    rgba(26, 31, 30, 0.85) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 640px;
  color: #fff;
}

.hero-eyebrow {
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  opacity: 0.92;
  margin: 0 0 var(--space-sm);
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 3.75rem);
  font-weight: 700;
  line-height: 1.1;
  margin: 0 0 var(--space-md);
  letter-spacing: -0.03em;
}

.hero-lead {
  font-size: 1.125rem;
  line-height: 1.7;
  opacity: 0.95;
  margin: 0 0 var(--space-lg);
  max-width: 52ch;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 1.6rem;
  font-family: inherit;
  font-weight: 600;
  font-size: 1rem;
  border-radius: 999px;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.2s var(--ease-out), box-shadow 0.2s, background 0.2s;
}

button.btn {
  -webkit-appearance: none;
  appearance: none;
}

.btn-primary {
  background: var(--color-accent);
  color: #fff;
  border: none;
  box-shadow: 0 4px 20px rgba(196, 92, 62, 0.45);
}

.btn-primary:hover {
  background: var(--color-accent-dark);
  color: #fff;
  transform: translateY(-2px);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.35);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.22);
  color: #fff;
}

.hero-scroll {
  position: absolute;
  bottom: var(--space-md);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.65);
  z-index: 2;
}

.hero-scroll-line {
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, rgba(255, 255, 255, 0.5), transparent);
}

@media (max-width: 480px) {
  .hero-scroll {
    display: none;
  }
}

/* Sections */

.section {
  padding: var(--space-xl) 0;
}

.intro {
  padding-top: var(--space-lg);
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.85rem, 4vw, 2.5rem);
  font-weight: 700;
  color: var(--color-teal);
  margin: 0 0 var(--space-md);
  letter-spacing: -0.02em;
}

.lead {
  font-size: 1.15rem;
  color: var(--color-ink-muted);
  margin: 0;
}

.section-head {
  text-align: center;
  max-width: 640px;
  margin: 0 auto var(--space-lg);
}

.section-head .section-title {
  margin-bottom: var(--space-sm);
}

.section-sub {
  margin: 0;
  color: var(--color-ink-muted);
  font-size: 1.05rem;
}

/* Feature rows */

.highlights {
  background: linear-gradient(180deg, var(--color-bg) 0%, var(--color-surface) 12%);
}

.feature-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  align-items: center;
  margin-bottom: var(--space-xl);
}

.feature-row:last-child {
  margin-bottom: 0;
}

.feature-row--reverse .feature-media {
  order: 2;
}

.feature-row--reverse .feature-text {
  order: 1;
}

.feature-media {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.feature-media img {
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  display: block;
}

.feature-text .tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-xs);
}

.feature-text h3 {
  font-family: var(--font-display);
  font-size: 1.75rem;
  margin: 0 0 var(--space-sm);
  color: var(--color-ink);
}

.feature-text p {
  margin: 0 0 var(--space-sm);
  color: var(--color-ink-muted);
}

.feature-text p:last-child {
  margin-bottom: 0;
}

@media (max-width: 900px) {
  .feature-row,
  .feature-row--reverse {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }

  .feature-row--reverse .feature-media,
  .feature-row--reverse .feature-text {
    order: unset;
  }
}

/* Cards */

.districts {
  background: var(--color-bg-alt);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  transition: transform 0.35s var(--ease-out), box-shadow 0.35s;
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow);
}

.card-image {
  aspect-ratio: 4 / 3;
  overflow: hidden;
}

.card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease-out);
}

.card:hover .card-image img {
  transform: scale(1.05);
}

.card-body {
  padding: var(--space-md);
}

.card-body h3 {
  font-family: var(--font-display);
  font-size: 1.35rem;
  margin: 0 0 var(--space-xs);
  color: var(--color-teal);
}

.card-body p {
  margin: 0;
  font-size: 0.98rem;
  color: var(--color-ink-muted);
}

@media (max-width: 960px) {
  .card-grid {
    grid-template-columns: 1fr;
    max-width: 520px;
    margin-inline: auto;
  }
}

/* Nature band */

.band {
  background: linear-gradient(135deg, var(--color-teal) 0%, #163832 100%);
  color: #e8f0ee;
}

.band .section-title,
.band .section-sub {
  color: #e8f0ee;
}

.band .section-sub {
  opacity: 0.88;
}

.split-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.split-item {
  display: grid;
  grid-template-columns: minmax(0, 280px) 1fr;
  gap: var(--space-lg);
  align-items: center;
  padding: var(--space-md);
  background: rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.split-item img {
  border-radius: var(--radius);
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.split-item h3 {
  font-family: var(--font-display);
  font-size: 1.35rem;
  margin: 0 0 var(--space-xs);
}

.split-item p {
  margin: 0;
  opacity: 0.9;
  font-size: 1rem;
}

@media (max-width: 700px) {
  .split-item {
    grid-template-columns: 1fr;
  }
}

/* Food */

.food-banner {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: var(--space-lg);
  align-items: center;
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.food-banner-media img {
  width: 100%;
  height: 100%;
  min-height: 320px;
  object-fit: cover;
  display: block;
}

.food-banner-text {
  padding: var(--space-lg);
}

.food-banner-text .section-title {
  margin-bottom: var(--space-md);
}

.food-banner-text p {
  color: var(--color-ink-muted);
  margin: 0 0 var(--space-sm);
}

@media (max-width: 860px) {
  .food-banner {
    grid-template-columns: 1fr;
  }

  .food-banner-media {
    order: -1;
  }

  .food-banner-media img {
    min-height: 240px;
  }
}

/* Tips */

.plan {
  background: var(--color-bg);
}

.tips-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
}

.tip {
  background: var(--color-surface);
  padding: var(--space-md);
  border-radius: var(--radius-lg);
  border-left: 4px solid var(--color-gold);
  box-shadow: var(--shadow-soft);
}

.tip-icon {
  display: block;
  font-size: 0.6rem;
  color: var(--color-gold);
  margin-bottom: var(--space-xs);
}

.tip h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  margin: 0 0 var(--space-xs);
  color: var(--color-teal);
}

.tip p {
  margin: 0;
  font-size: 0.98rem;
  color: var(--color-ink-muted);
}

@media (max-width: 640px) {
  .tips-grid {
    grid-template-columns: 1fr;
  }
}

/* CTA */

.cta-section {
  padding: var(--space-xl) var(--space-md);
  background: linear-gradient(120deg, var(--color-accent) 0%, #8b3a2a 100%);
  color: #fff;
  text-align: center;
}

.cta-inner {
  max-width: 560px;
}

.cta-section h2 {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  margin: 0 0 var(--space-sm);
}

.cta-section p {
  margin: 0 0 var(--space-lg);
  opacity: 0.95;
  line-height: 1.65;
}

.cta-section .btn-primary {
  background: #fff;
  color: var(--color-accent-dark);
  box-shadow: none;
}

.cta-section .btn-primary:hover {
  background: var(--color-bg);
  color: var(--color-ink);
}

/* Footer */

.site-footer {
  padding: var(--space-lg) 0;
  background: var(--color-ink);
  color: rgba(255, 255, 255, 0.75);
  font-size: 0.9rem;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--space-md);
}

.footer-brand .logo {
  color: #fff;
  display: inline-block;
  margin-bottom: var(--space-xs);
}

.footer-brand p {
  margin: 0;
  max-width: 360px;
  line-height: 1.5;
}

.footer-copy {
  margin: 0;
  opacity: 0.65;
}

/* Reveal animation */

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.65s var(--ease-out), transform 0.65s var(--ease-out);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}