:root {
  color-scheme: light;
  --bg: #f7fafc;
  --surface: rgba(255, 255, 255, 0.95);
  --surface-strong: rgba(255, 255, 255, 1);
  --text: #111827;
  --text-muted: #334155;
  --accent: #2563eb;
  --accent-soft: rgba(37, 99, 235, 0.18);
  --border: rgba(15, 23, 42, 0.1);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: radial-gradient(circle at top left, rgba(79, 70, 229, 0.12), transparent 20%),
    radial-gradient(circle at bottom right, rgba(59, 130, 246, 0.1), transparent 18%),
    linear-gradient(180deg, #ffffff 0%, #f1f5f9 100%);
  color: var(--text);
}

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

button,
a {
  font: inherit;
}

.hero {
  min-height: 90vh;
  display: grid;
  place-items: center;
  padding: 4rem 1.5rem;
  gap: 2.5rem;
}

.hero__content {
  max-width: 760px;
  text-align: center;
}

.eyebrow {
  display: inline-flex;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.24em;
  font-size: 0.75rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.hero h1,
.section__header h2 {
  font-size: clamp(2.5rem, 4vw, 4.5rem);
  line-height: 1.05;
  margin: 0;
}

.hero__text,
.section__header p,
.feature-card p,
.footer p {
  color: var(--text-muted);
  line-height: 1.75;
  font-size: 1.05rem;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
  margin-top: 2rem;
}

.btn {
  border: 1px solid transparent;
  border-radius: 999px;
  padding: 0.95rem 1.8rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: transform 180ms ease, background-color 180ms ease, border-color 180ms ease;
  text-decoration: none;
}

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

.btn-primary {
  background: linear-gradient(135deg, var(--accent), #4f46e5);
  color: #fff;
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
  border-color: rgba(255, 255, 255, 0.12);
}

.section {
  padding: 5rem 1.5rem;
}

.section--intro {
  padding-top: 2rem;
}

.section__header {
  max-width: 760px;
  margin: 0 auto 2.5rem;
  text-align: center;
}

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem;
  margin-bottom: 2rem;
}

.filter-btn {
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  border-radius: 999px;
  padding: 0.85rem 1.4rem;
  cursor: pointer;
  transition: transform 180ms ease, background-color 180ms ease, border-color 180ms ease;
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--accent-soft);
  border-color: rgba(124, 110, 255, 0.35);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.gallery-card {
  overflow: hidden;
  border-radius: 28px;
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.22);
  transition: transform 220ms ease, box-shadow 220ms ease;
}

.gallery-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 36px 85px rgba(0, 0, 0, 0.28);
}

.gallery-card img {
  width: 100%;
  height: auto;
  display: block;
}

.gallery-card__info {
  padding: 1.2rem 1.25rem 1.4rem;
}

.gallery-card__info h3 {
  margin: 0 0 0.6rem;
  font-size: 1.15rem;
}

.gallery-card__info p {
  margin: 0;
  color: var(--text-muted);
}

/* Responsive: 2 columns on tablet */
@media (max-width: 1024px) {
  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Responsive: 1 column on mobile */
@media (max-width: 640px) {
  .gallery-grid {
    grid-template-columns: 1fr;
  }
}

.section--feature {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 2rem;
  align-items: center;
  max-width: 1120px;
  margin: 0 auto;
}

.feature-card {
  padding: 2.5rem;
  border-radius: 32px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.01);
}

.feature-card ul {
  margin: 1.5rem 0 0;
  padding-left: 1.2rem;
  color: var(--text-muted);
}

.feature-card li {
  margin-bottom: 0.85rem;
}

.feature-image {
  min-height: 380px;
  border-radius: 32px;
  background-image: url("https://images.unsplash.com/photo-1500534314209-a25ddb2bd429?auto=format&fit=crop&w=1400&q=80");
  background-size: cover;
  background-position: center;
  box-shadow: 0 32px 100px rgba(0, 0, 0, 0.3);
}

.section--contact {
  text-align: center;
}

.contact-card {
  display: inline-flex;
  padding: 1.1rem 1.75rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: var(--text);
  text-decoration: none;
  margin-top: 1.5rem;
}

.footer {
  padding: 2rem 1.5rem;
  text-align: center;
  color: var(--text-muted);
}

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

@media (max-width: 640px) {
  .hero {
    padding-top: 3rem;
    padding-bottom: 3rem;
  }
  .hero__content {
    max-width: 100%;
  }
  .hero__actions {
    flex-direction: column;
  }
  .feature-image {
    min-height: 260px;
  }
}