/* =========================================
   SAI SUMANTH TRAVELS
   Premium black & white Apple-style theme
   ========================================= */

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #ffffff;
  color: #1d1d1f;
  line-height: 1.55;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  display: block;
}

a {
  text-decoration: none;
  color: inherit;
}

.container {
  width: min(1140px, 90%);
  margin: auto;
}

/* ============ NAVIGATION ============ */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  padding: 16px 0;
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
}

.nav-inner {
  width: min(1140px, 90%);
  margin: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.logo {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: #1d1d1f;
}

.logo span {
  font-weight: 400;
  color: #6e6e73;
}

.nav-links {
  display: flex;
  gap: 28px;
}

.nav-links a {
  font-size: 14px;
  font-weight: 500;
  color: #1d1d1f;
  opacity: 0.75;
  transition: opacity 0.25s ease;
}

.nav-links a:hover {
  opacity: 1;
}

.call-btn {
  background: #1d1d1f;
  color: #ffffff;
  padding: 10px 22px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.call-btn:hover {
  transform: scale(1.04);
  opacity: 0.88;
}

/* ============ HERO ============ */

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
  background: #000000;
  color: #f5f5f7;
}

.hero-media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-video,
.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(100%) contrast(1.05);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(
      to bottom,
      rgba(0, 0, 0, 0.45),
      rgba(0, 0, 0, 0.78)
    );
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 920px;
  padding: 130px 24px 90px;
}

.eyebrow {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 3.5px;
  text-transform: uppercase;
  color: #86868b;
  margin-bottom: 22px;
}

.hero h1 {
  font-size: clamp(48px, 9vw, 104px);
  line-height: 1.01;
  font-weight: 700;
  letter-spacing: -3.5px;
  color: #f5f5f7;
}

.hero-sub {
  margin-top: 28px;
  font-size: clamp(17px, 2vw, 21px);
  color: #a1a1a6;
  max-width: 660px;
  margin-left: auto;
  margin-right: auto;
}

.hero-buttons {
  margin-top: 44px;
  display: flex;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 15px 32px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  transition: transform 0.3s ease, opacity 0.3s ease, background 0.3s ease;
}

.btn.primary {
  background: #f5f5f7;
  color: #1d1d1f;
}

.btn.ghost {
  border: 1px solid rgba(245, 245, 247, 0.35);
  color: #f5f5f7;
}

.btn.whatsapp {
  background: #1d1d1f;
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.btn:hover {
  transform: translateY(-3px);
  opacity: 0.9;
}

.scroll-hint {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 11px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: rgba(245, 245, 247, 0.45);
}

/* ============ LIGHT SECTIONS ============ */

.section {
  padding: 140px 0;
}

.intro {
  text-align: center;
  background: #ffffff;
}

h2 {
  font-size: clamp(36px, 6vw, 68px);
  font-weight: 700;
  letter-spacing: -2.5px;
  line-height: 1.06;
  color: #1d1d1f;
}

.section-text {
  margin-top: 26px;
  font-size: clamp(16px, 2vw, 19px);
  color: #6e6e73;
  max-width: 730px;
  margin-left: auto;
  margin-right: auto;
}

/* ============ FLEET ============ */

.fleet {
  background: #f5f5f7;
}

.car-grid {
  margin-top: 80px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.car-card {
  background: #ffffff;
  border: 1px solid rgba(0, 0, 0, 0.06);
  border-radius: 28px;
  overflow: hidden;
  transition: transform 0.5s cubic-bezier(0.2, 0.8, 0.2, 1), box-shadow 0.5s ease;
}

.car-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 30px 70px rgba(0, 0, 0, 0.12);
}

.car-image {
  height: 260px;
  overflow: hidden;
  background: #e8e8ed;
}

.car-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(100%);
  transition: transform 0.8s cubic-bezier(0.2, 0.8, 0.2, 1), filter 0.5s ease;
}

.car-card:hover .car-image img {
  transform: scale(1.06);
  filter: grayscale(0%);
}

.car-info {
  padding: 34px;
}

.car-info h3 {
  font-size: 26px;
  font-weight: 700;
  letter-spacing: -0.5px;
  margin-bottom: 12px;
}

.car-info p {
  color: #6e6e73;
  font-size: 15px;
}

.car-info ul {
  margin-top: 22px;
  list-style: none;
}

.car-info li {
  font-size: 14px;
  color: #1d1d1f;
  padding: 10px 0;
  border-top: 1px solid rgba(0, 0, 0, 0.08);
}

/* ============ FEATURES ============ */

.features {
  background: #000000;
  color: #f5f5f7;
}

.features h2 {
  color: #f5f5f7;
}

.features .section-text {
  color: #a1a1a6;
}

.feature-grid {
  margin-top: 80px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 18px;
}

.feature {
  padding: 40px 32px;
  border-radius: 26px;
  background: #111113;
  border: 1px solid rgba(255, 255, 255, 0.08);
  transition: transform 0.4s ease, border-color 0.4s ease;
}

.feature:hover {
  transform: translateY(-6px);
  border-color: rgba(255, 255, 255, 0.22);
}

.feature h3 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 12px;
  color: #f5f5f7;
}

.feature p {
  color: #a1a1a6;
  font-size: 15px;
}

/* ============ CTA ============ */

.cta {
  text-align: center;
  background: #ffffff;
}

.cta-buttons {
  margin-top: 42px;
  display: flex;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
}

.cta .btn.primary {
  background: #1d1d1f;
  color: #ffffff;
}

.cta .btn.whatsapp {
  background: #f5f5f7;
  color: #1d1d1f;
  border: 1px solid rgba(0, 0, 0, 0.1);
}

/* ============ CONTACT ============ */

.contact {
  background: #f5f5f7;
}

.contact-grid {
  margin-top: 70px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.contact-card {
  padding: 38px;
  border-radius: 26px;
  background: #ffffff;
  border: 1px solid rgba(0, 0, 0, 0.06);
}

.contact-card h3 {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: #86868b;
  margin-bottom: 16px;
}

.contact-card a {
  display: block;
  font-size: 27px;
  font-weight: 700;
  color: #1d1d1f;
  letter-spacing: -0.5px;
}

.contact-card p {
  margin-top: 12px;
  color: #6e6e73;
  font-size: 15px;
}

/* ============ FOOTER ============ */

.footer {
  padding: 50px 0;
  background: #000000;
  color: #86868b;
  text-align: center;
  font-size: 13px;
}

.footer p {
  margin: 5px 0;
}

/* ============ SCROLL ANIMATION ============ */

.reveal {
  opacity: 0;
  transform: translateY(38px);
  transition: opacity 1s cubic-bezier(0.2, 0.8, 0.2, 1), transform 1s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============ MOBILE ============ */

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }

  .hero h1 {
    letter-spacing: -2px;
  }

  .section {
    padding: 95px 0;
  }

  .call-btn {
    padding: 9px 16px;
    font-size: 13px;
  }

  .car-image {
    height: 220px;
  }
}