:root {
  --primary: #0f172a;
  --secondary: #e11d48;
  --accent: #fbbf24;
  --text: #1f2937;
  --background: #f3f4f6;
  --light: #ffffff;
}

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

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--background);
  color: var(--text);
  line-height: 1.5;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
}

/* nav */
.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--primary);
  color: #fff;
  padding: 12px 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: .5rem;
  text-decoration: none;
}

.logo {
  height: 42px;
  width: auto;
  display: block;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 1.2rem;
}

.nav-links a {
  color: #fff;
  text-decoration: none;
  border-bottom: 2px solid transparent;
  padding-bottom: 4px;
  font-size: .9rem;
}

.nav-links a:hover,
.nav-links a.active {
  border-color: var(--accent);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
}

/* animated bulbs */
.nav-lights {
  position: absolute;
  top: 100%;
  left: 50%;
  width: 115%;
  transform: translateX(-50%);
  display: flex;
  justify-content: space-around;
  list-style: none;
  padding-top: 6px;
  pointer-events: none;
}

.nav-lights li {
  width: 12px;
  height: 20px;
  background: var(--accent);
  border-radius: 6px 6px 12px 12px;
  box-shadow: 0 10px 12px rgba(251, 191, 36, 0.35);
  animation: twinkle 1.4s ease-in-out infinite;
}
.nav-lights li:nth-child(2n) { background: #e11d48; animation-delay: .2s; }
.nav-lights li:nth-child(3n) { background: #22c55e; animation-delay: .4s; }

@keyframes twinkle {
  0%,100% { transform: translateY(0); opacity: 1; }
  50% { transform: translateY(4px); opacity: .35; }
}

/* hero banner */
.hero {
  background-image: linear-gradient(120deg, rgba(15,23,42,.95), rgba(15,23,42,.15)), url('assets/images/hero2.webp');
  background-size: cover;
  background-position: center;
  color: #fff;
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: flex-start;
}

.hero-content {
  padding: 4.5rem 1.5rem 4rem;
  max-width: 540px;
}

.hero h1 {
  font-size: clamp(2.6rem, 4vw, 3rem);
  margin-bottom: 1rem;
}

.hero p { margin-bottom: 1.5rem; }

.btn {
  display: inline-block;
  padding: .7rem 1.4rem;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 600;
}
.btn.primary { background: var(--secondary); color: #fff; margin-right: .6rem; }
.btn.secondary { background: rgba(255,255,255,.12); color: #fff; border: 1px solid rgba(255,255,255,.35); }

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 2.5rem 1.5rem;
}

.section-title {
  font-size: 2rem;
  margin-bottom: 1.5rem;
  text-align: center;
  color: var(--primary);
}

/* gallery images 1200px */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1rem;
}
.gallery-grid img {
  width: 100%;
  max-width: 1200px;
  height: auto;
  display: block;
  margin: 0 auto;
  border-radius: 10px;
  background: #e5e7eb;
}

/* footer */
footer {
  background: var(--primary);
  color: #fff;
  text-align: center;
  padding: 1.2rem 0;
  margin-top: 3rem;
}

@media (max-width: 850px) {
  .nav-toggle { display: block; }
  .nav-links {
    position: absolute;
    top: 56px;
    right: 24px;
    background: rgba(15,23,42,.96);
    flex-direction: column;
    min-width: 180px;
    border-radius: 6px;
    overflow: hidden;
    display: none;
  }
  .nav-links.show { display: flex; }
  .nav-lights { display: none; }
  .hero { min-height: 54vh; }
}