/* ============ Base ============ */
* {
  box-sizing: border-box;
}
:root {
  --bg: #0b0d0f;
  --card: #111418;
  --muted: #9aa3ad;
  --text: #e9eef3;
  --accent: #2dbd6e;
  --accent-2: #2d9cbd;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
}
html,
body {
  height: 100%;
}
body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial,
    "Apple Color Emoji", "Segoe UI Emoji";
  color: var(--text);
  background: linear-gradient(180deg, #0b0d0f 0%, #0e1216 60%, #12171c 100%);
  line-height: 1.6;
}
img {
  max-width: 100%;
  display: block;
}
a {
  color: var(--accent);
}
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(11, 13, 15, 0.75);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
}
.brand {
  font-weight: 700;
  letter-spacing: 0.5px;
  text-decoration: none;
  color: var(--text);
}
.nav-toggle {
  display: none;
  background: none;
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: var(--text);
  padding: 0.35rem 0.6rem;
  border-radius: 8px;
}
.nav-list {
  display: flex;
  gap: 0.75rem;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-list a {
  color: var(--text);
  text-decoration: none;
  padding: 0.5rem 0.75rem;
  border-radius: 8px;
}
.nav-list a:hover {
  background: rgba(255, 255, 255, 0.06);
}
.nav-list .btn.ext {
  background: var(--accent);
  color: #03180d;
}

/* Hero */
.hero {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 2rem;
  align-items: center;
  padding: 4rem 1.25rem 2rem;
  background: linear-gradient(
    160deg,
    rgba(45, 189, 110, 0.12),
    rgba(45, 156, 189, 0.08)
  );
}
.hero__content h1 {
  font-size: 2.6rem;
  line-height: 1.1;
  margin: 0.5rem 0;
}
.hero__content p {
  color: var(--muted);
  margin-bottom: 1rem;
}
.hero__cta {
  display: flex;
  gap: 0.75rem;
  margin: 1rem 0;
}
.hero__links {
  margin-top: 1rem;
  color: var(--muted);
}
.hero__links a {
  color: var(--text);
  opacity: 0.9;
}
.hero__media img {
  border-radius: 14px;
  box-shadow: var(--shadow);
}
.btn {
  background: var(--accent);
  color: #03180d;
  border: none;
  padding: 0.7rem 1rem;
  border-radius: 10px;
  text-decoration: none;
  font-weight: 600;
}
.btn--ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

/* Sections */
.section {
  padding: 4rem 0;
}
.section h2 {
  font-size: 2rem;
  margin: 0 0 1rem;
}
.two-col {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 2rem;
  align-items: center;
}
.about__media img {
  border-radius: 14px;
  box-shadow: var(--shadow);
}
.bullets {
  margin: 1rem 0 0 1.1rem;
}
.bullets li {
  margin: 0.35rem 0;
}

/* Cards */
.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-top: 1rem;
}
.card {
  background: var(--card);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 14px;
  overflow: hidden;
  box-shadow: var(--shadow);
}
.card img {
  aspect-ratio: 16/10;
  object-fit: cover;
}
.card-body {
  padding: 1rem;
}
.card-body h3 {
  margin: 0.2rem 0 0.5rem;
}
.card-body p {
  color: var(--muted);
}

/* Timeline */
.timeline {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(4, 1fr);
  margin-top: 1rem;
}
.time-item {
  background: var(--card);
  border: 1px solid rgba(255, 255, 255, 0.06);
  padding: 1rem;
  border-radius: 12px;
}
.time {
  display: block;
  color: var(--accent-2);
  font-weight: 700;
  margin-bottom: 0.25rem;
}

/* Contact */
.contact-form {
  display: grid;
  gap: 0.75rem;
  background: var(--card);
  padding: 1rem;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.06);
}
.contact-form label {
  display: grid;
  gap: 0.35rem;
  color: var(--muted);
}
.contact-form input,
.contact-form textarea {
  padding: 0.65rem 0.75rem;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: #0d1115;
  color: var(--text);
}
.hidden {
  display: none;
}

/* Footer */
.site-footer {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding: 1.5rem 1rem;
  color: var(--muted);
  text-align: center;
}

/* Responsive */
@media (max-width: 980px) {
  .two-col {
    grid-template-columns: 1fr;
  }
  .hero {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .hero__cta {
    justify-content: center;
  }
  .cards {
    grid-template-columns: 1fr 1fr;
  }
  .timeline {
    grid-template-columns: 1fr 1fr;
  }
  .nav-toggle {
    display: inline-block;
  }
  .nav-list {
    position: absolute;
    top: 64px;
    right: 10px;
    flex-direction: column;
    background: #0e1216;
    padding: 0.5rem;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.06);
    display: none;
  }
  .nav-list.open {
    display: flex;
  }
}
@media (max-width: 560px) {
  .cards {
    grid-template-columns: 1fr;
  }
  .timeline {
    grid-template-columns: 1fr;
  }
}