:root {
  --black: #000000;
  --near-black: #0a0a0a;
  --white: #ffffff;
  --gray: #8a8a8a;
  --line: rgba(255, 255, 255, 0.1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html, body {
  background: var(--black);
  color: var(--white);
  font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

.logo {
  font-family: Georgia, "Times New Roman", serif;
  font-style: italic;
  font-size: 1.4rem;
  letter-spacing: -0.01em;
}

.logo.small { font-size: 1.1rem; opacity: 0.8; }

/* Nav */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 20;
  padding: 28px 5vw;
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-cta {
  color: var(--white);
  text-decoration: none;
  font-size: 0.85rem;
  border: 1px solid var(--line);
  padding: 9px 18px;
  border-radius: 999px;
  transition: border-color 0.2s ease, background 0.2s ease;
}

.nav-cta:hover {
  border-color: rgba(255,255,255,0.4);
  background: rgba(255,255,255,0.05);
}

/* Hero */
.hero {
  position: relative;
  height: 100vh;
  min-height: 640px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.video-bg {
  position: absolute;
  inset: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-template-rows: 1fr;
  gap: 1px;
  background: var(--black);
}

.video-bg video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(25%) brightness(0.85) contrast(1.05);
  opacity: 0.9;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at center, rgba(0,0,0,0.15) 0%, rgba(0,0,0,0.45) 60%, rgba(0,0,0,0.75) 100%),
    linear-gradient(to bottom, rgba(0,0,0,0.35) 0%, rgba(0,0,0,0.2) 40%, rgba(0,0,0,0.7) 100%);
}

.hero-content {
  position: relative;
  z-index: 5;
  text-align: center;
  max-width: 720px;
  padding: 0 24px;
}

.hero-logo {
  display: block;
  font-family: Georgia, "Times New Roman", serif;
  font-style: italic;
  font-size: 1.1rem;
  letter-spacing: 0.02em;
  color: var(--gray);
  margin-bottom: 28px;
}

.hero-content h1 {
  font-size: clamp(2.2rem, 5.5vw, 4.2rem);
  line-height: 1.08;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 22px;
}

.hero-sub {
  font-size: clamp(1rem, 1.6vw, 1.15rem);
  color: rgba(255,255,255,0.65);
  line-height: 1.5;
  max-width: 520px;
  margin: 0 auto 40px;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  text-decoration: none;
  font-size: 0.95rem;
  padding: 14px 28px;
  border-radius: 999px;
  transition: transform 0.15s ease, opacity 0.15s ease, background 0.2s ease;
}

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

.btn-primary {
  background: var(--white);
  color: var(--black);
  font-weight: 600;
}

.btn-primary:hover { opacity: 0.85; }

.btn-ghost {
  color: var(--white);
  border: 1px solid var(--line);
}

.btn-ghost:hover {
  border-color: rgba(255,255,255,0.4);
  background: rgba(255,255,255,0.05);
}

/* Strip / features */
.strip {
  background: var(--near-black);
  border-top: 1px solid var(--line);
  padding: 96px 5vw;
}

.strip-inner {
  max-width: 1080px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 48px;
}

.strip-item .strip-index {
  display: block;
  font-size: 0.8rem;
  color: var(--gray);
  margin-bottom: 14px;
  letter-spacing: 0.05em;
}

.strip-item h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}

.strip-item p {
  color: rgba(255,255,255,0.55);
  font-size: 0.95rem;
  line-height: 1.55;
}

/* Footer */
.footer {
  background: var(--black);
  border-top: 1px solid var(--line);
  padding: 40px 5vw;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.footer p {
  color: var(--gray);
  font-size: 0.8rem;
}

@media (max-width: 720px) {
  .strip-inner { grid-template-columns: 1fr; gap: 40px; }
  .footer { flex-direction: column; text-align: center; }
}