:root {
  --bg: #050505;
  --fg: #f4f4f4;
  --muted: #9f9f9f;
  --glass: rgba(10, 10, 10, 0.52);
  --chip: rgba(255, 255, 255, 0.12);
  --chip-border: rgba(255, 255, 255, 0.24);
}

:root[data-theme="light"] {
  --bg: #f6f6f6;
  --fg: #111;
  --muted: #4e4e4e;
  --glass: rgba(255, 255, 255, 0.6);
  --chip: rgba(0, 0, 0, 0.08);
  --chip-border: rgba(0, 0, 0, 0.18);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: "Inter", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

a { color: inherit; text-decoration: none; }

.topbar {
  position: fixed;
  top: 0;
  z-index: 10;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.5rem;
  backdrop-filter: blur(10px);
  background: linear-gradient(to bottom, var(--glass), transparent);
}

.brand {
  font-size: 1.15rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 600;
}

.nav {
  display: flex;
  gap: 1.2rem;
  font-size: 0.92rem;
  color: var(--muted);
}

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

.controls {
  display: flex;
  gap: 0.5rem;
}

.chip {
  border: 1px solid var(--chip-border);
  background: var(--chip);
  color: var(--fg);
  border-radius: 999px;
  padding: 0.45rem 0.72rem;
}

.hero {
  position: relative;
  min-height: 100vh;
  overflow: hidden;
}

.hero-image {
  width: 100%;
  height: 100vh;
  object-fit: cover;
  filter: grayscale(1) contrast(1.08) brightness(0.84);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 75%, transparent 0%, rgba(0, 0, 0, 0.55) 65%);
}

.hero-caption {
  position: absolute;
  left: 1.5rem;
  right: 1.5rem;
  bottom: 5.5rem;
}

.tagline {
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: #d4d4d4;
  margin-bottom: 0.8rem;
}

h1 {
  margin: 0;
  font-size: clamp(2rem, 5vw, 4.5rem);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.slider-meta {
  position: absolute;
  right: 1.2rem;
  bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.8rem;
  background: rgba(0, 0, 0, 0.4);
  padding: 0.45rem 0.7rem;
  border-radius: 999px;
}

.arrow {
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: var(--fg);
  background: transparent;
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
}

.section {
  padding: 4rem 1.5rem;
  max-width: 900px;
}

.section h2 {
  margin-top: 0;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.section p {
  color: var(--muted);
  line-height: 1.7;
}

.footer {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
  padding: 1.2rem 1rem 2rem;
  color: var(--muted);
  font-size: 0.86rem;
}

.footer a { text-decoration: underline; }

@media (max-width: 820px) {
  .nav { display: none; }
  .hero-caption { bottom: 6.6rem; }
  .tagline { font-size: 0.72rem; }
}