/* ─── Design Tokens ─────────────────────────────────────────────────────────── */
:root {
  --bg:        #0b1628;
  --bg-alt:    #162035;
  --accent:    #f97316;
  --accent-dim:#c2580f;
  --text:      #ffffff;
  --muted:     #94a3b8;
  --border:    #1e3050;
  --radius:    12px;
  --transition: 0.3s ease;
}

/* ─── Reset ─────────────────────────────────────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background-color: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
}

/* ─── Nav ───────────────────────────────────────────────────────────────────── */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 2rem;
  background: linear-gradient(to bottom, rgba(11, 22, 40, 0.95), transparent);
}

.nav-brand {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--text);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-logo {
  height: 40px;
  width: auto;
}

.nav-text {
  letter-spacing: inherit;
}

.nav-text span {
  color: var(--accent);
  margin-left: 0.05em;
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color var(--transition);
}

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

/* ─── Hero ──────────────────────────────────────────────────────────────────── */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 6rem 2rem 4rem;
  position: relative;
  overflow: hidden;
}

/* subtle radial glow behind the image */
.hero::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(249, 115, 22, 0.12) 0%, transparent 70%);
  pointer-events: none;
}

.hero-image {
  width: min(520px, 80vw);
  height: auto;
  animation: fadeInUp 0.8s ease both;
}

.hero-tagline {
  margin-top: 2rem;
  font-size: clamp(1.1rem, 2.5vw, 1.5rem);
  color: var(--muted);
  letter-spacing: 0.04em;
  animation: fadeInUp 0.8s 0.2s ease both;
}

.hero-tagline strong {
  color: var(--accent);
}

.hero-cta {
  margin-top: 2rem;
  animation: fadeInUp 0.8s 0.4s ease both;
}

.btn {
  display: inline-block;
  padding: 0.75rem 2rem;
  border-radius: 9999px;
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 4px 20px rgba(249, 115, 22, 0.35);
}

.btn-primary:hover {
  background: var(--accent-dim);
  transform: translateY(-2px);
  box-shadow: 0 6px 28px rgba(249, 115, 22, 0.45);
}

/* ─── Section Shared ────────────────────────────────────────────────────────── */
section {
  padding: 5rem 2rem;
}

.section-label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.section-title {
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  font-weight: 800;
  margin-bottom: 1rem;
}

.section-subtitle {
  color: var(--muted);
  font-size: 1.05rem;
  max-width: 520px;
  margin: 0 auto 3rem;
}

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

/* ─── Projects Carousel ─────────────────────────────────────────────────────── */
.projects {
  background: var(--bg-alt);
}

.carousel-wrapper {
  position: relative;
  max-width: 1100px;
  margin: 0 auto;
}

.carousel-track {
  display: flex;
  gap: 1.5rem;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  -ms-overflow-style: none;
  scrollbar-width: none;
  padding: 1rem 0.5rem 2rem;
}

.carousel-track::-webkit-scrollbar {
  display: none;
}

.project-card {
  scroll-snap-align: center;
  flex: 0 0 260px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.25rem;
  text-decoration: none;
  color: var(--text);
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}

.project-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: 0 8px 32px rgba(249, 115, 22, 0.2);
}

.project-logo {
  width: 180px;
  height: 80px;
  object-fit: contain;
  filter: grayscale(100%) brightness(0.9);
  transition: filter var(--transition), transform var(--transition);
}

.project-card:hover .project-logo {
  filter: grayscale(0%) brightness(1);
  transform: scale(1.05);
}

.project-name {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--muted);
  letter-spacing: 0.04em;
  transition: color var(--transition);
}

.project-card:hover .project-name {
  color: var(--text);
}

.project-arrow {
  font-size: 0.75rem;
  color: var(--accent);
  opacity: 0;
  transform: translateX(-4px);
  transition: opacity var(--transition), transform var(--transition);
}

.project-card:hover .project-arrow {
  opacity: 1;
  transform: translateX(0);
}

/* Carousel controls */
.carousel-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  margin-top: 0.5rem;
}

.carousel-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color var(--transition), color var(--transition), background var(--transition);
  font-size: 1rem;
  line-height: 1;
}

.carousel-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(249, 115, 22, 0.08);
}

.carousel-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.carousel-dots {
  display: flex;
  gap: 0.5rem;
}

.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--border);
  border: none;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition);
  padding: 0;
}

.dot.active {
  background: var(--accent);
  transform: scale(1.3);
}

/* ─── Footer ────────────────────────────────────────────────────────────────── */
footer {
  border-top: 1px solid var(--border);
  padding: 2.5rem 2rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.footer-brand-identity {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.footer-logo {
  height: 36px;
  width: auto;
}

.footer-brand-name {
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.05em;
}

.footer-brand-name span {
  color: var(--accent);
  margin-left: 0.05em;
}

.footer-copy {
  font-size: 0.8rem;
  color: var(--muted);
}

.social-links {
  display: flex;
  gap: 1rem;
  align-items: center;
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--border);
  color: var(--muted);
  text-decoration: none;
  transition: color var(--transition), border-color var(--transition), background var(--transition);
}

.social-link:hover {
  color: var(--accent);
  border-color: var(--accent);
  background: rgba(249, 115, 22, 0.08);
}

.social-link svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

/* ─── Animations ────────────────────────────────────────────────────────────── */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ─── Responsive ────────────────────────────────────────────────────────────── */
@media (max-width: 640px) {
  nav {
    padding: 1rem;
  }

  .nav-links {
    gap: 1.25rem;
  }

  footer {
    flex-direction: column;
    align-items: flex-start;
  }

  .project-card {
    flex: 0 0 220px;
  }

  .project-logo {
    width: 150px;
  }
}