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

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  color: #333;
  background: #fff;
}

/* ── NAV ── */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
  height: 64px;
  background: rgba(10, 10, 10, 0.85);
  backdrop-filter: blur(10px);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
}

.nav-brand img { height: 28px; }

.nav-brand h1 {
  color: rgba(255,255,255,0.4);
  font-size: 0.8rem;
  font-weight: 300;
}

.nav-brand h1 span {
  color: #fff;
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.8rem;
  list-style: none;
}

.nav-links a {
  color: rgba(255,255,255,0.75);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.2s;
}

.nav-links a:hover { color: #fff; }

.btn-nav {
  background: #e8752a;
  color: #fff !important;
  padding: 0.45rem 1.2rem;
  border-radius: 4px;
  font-weight: 500;
}

.btn-nav:hover { background: #d4641e; }

/* ── HERO SLIDER ── */
.slider {
  position: relative;
  height: 100vh;
  min-height: 600px;
  overflow: hidden;
  padding: 0;
}

.slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 1s ease-in-out;
}

.slide.active { opacity: 1; }

.slide::after {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(to bottom, rgba(0,0,0,0.35), rgba(0,0,0,0.55));
}

.slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.slide-text {
  position: absolute;
  inset: 0;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}

.slide-text h2 {
  color: #fff;
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 700;
  margin-bottom: 0.5rem;
  text-shadow: 0 2px 8px rgba(0,0,0,0.4);
}

.slide-text p {
  color: rgba(255,255,255,0.85);
  font-size: clamp(1rem, 2vw, 1.35rem);
  font-weight: 300;
  letter-spacing: 0.04em;
  text-shadow: 0 1px 4px rgba(0,0,0,0.3);
}

.slider-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255,255,255,0.15);
  border: none;
  color: #fff;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  cursor: pointer;
  transition: background 0.2s;
  backdrop-filter: blur(4px);
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: center;
}

.slider-btn:hover { background: rgba(255,255,255,0.3); }
.slider-prev { left: 1.5rem; }
.slider-next { right: 1.5rem; }

.slider-dots {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 0.6rem;
  z-index: 10;
}

.slider-dots button {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 2px solid rgba(255,255,255,0.6);
  background: transparent;
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s;
}

.slider-dots button.active {
  background: #fff;
  border-color: #fff;
}

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

.section-title {
  text-align: center;
  font-size: 1.8rem;
  font-weight: 600;
  color: #222;
  margin-bottom: 0.5rem;
}

.section-subtitle {
  text-align: center;
  color: #777;
  font-size: 1rem;
  margin-bottom: 3rem;
}

/* ── FEATURES ── */
.features { background: #fafafa; }

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  max-width: 1000px;
  margin: 0 auto;
}

.feature-card {
  background: #fff;
  border-radius: 8px;
  padding: 2.5rem 2rem;
  text-align: center;
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
  transition: transform 0.3s, box-shadow 0.3s;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.1);
}

.feature-icon {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: linear-gradient(135deg, #3949ab, #5c6bc0);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.2rem;
  font-size: 1.5rem;
}

.feature-card h3 {
  font-size: 1.15rem;
  font-weight: 600;
  color: #222;
  margin-bottom: 0.75rem;
}

.feature-card p {
  color: #666;
  font-size: 0.92rem;
  line-height: 1.6;
}

/* ── FOOTER ── */
footer {
  background: #1a1a2e;
  color: rgba(255,255,255,0.6);
  text-align: center;
  padding: 2.5rem 2rem;
}

footer p {
  font-size: 0.8rem;
}

footer .contact-email {
  margin-top: 0.5rem;
}

footer .contact-email a {
  color: #e8752a;
  text-decoration: none;
}

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
  nav { padding: 0 1rem; }
  .nav-links { gap: 1rem; }
  .nav-links .hide-mobile { display: none; }
  section { padding: 3.5rem 1.5rem; }
  .features-grid { grid-template-columns: 1fr; }
  .slider-btn { width: 40px; height: 40px; font-size: 1.2rem; }
}

@media (max-width: 480px) {
  .nav-links { gap: 0.6rem; }
  .btn-nav { padding: 0.35rem 0.8rem; font-size: 0.8rem; }
  .nav-brand h1 { font-size: 0; }
  .nav-brand h1 span { font-size: 1.1rem; }
}