/*
  S7 Global Logistics landing page styles
  Implements responsive layout, parallax layers, and animation-ready classes.
*/

:root {
  --color-navy: #102540;
  --color-blue: #1c6edc;
  --color-orange: #ff7a45;
  --color-gray: #f1f3f6;
  --color-white: #ffffff;
  --color-dark: #0b1726;
  --font-heading: "Poppins", "Montserrat", Arial, sans-serif;
  --font-body: "Inter", "Roboto", Arial, sans-serif;
  --max-width: 1200px;
  --gutter: clamp(1.2rem, 3vw, 2.5rem);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-white);
  background-color: var(--color-dark);
  line-height: 1.6;
  overflow-x: hidden;
}

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

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

button {
  font-family: inherit;
}

.section {
  position: relative;
  padding: clamp(4rem, 7vw, 6.5rem) var(--gutter);
}

.container {
  width: min(var(--max-width), 100%);
  margin: 0 auto;
}

header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  padding: 1rem var(--gutter);
  display: flex;
  justify-content: center;
  z-index: 1000;
  background: linear-gradient(180deg, rgba(11, 23, 38, 0.95), rgba(11, 23, 38, 0));
  backdrop-filter: blur(8px);
}

nav {
  width: min(1200px, 100%);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-heading);
  font-size: 1.1rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-white);
}

.brand-logo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 60px;
  height: 60px;
  border-radius: 14px;
  background: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: 0 10px 18px rgba(16, 37, 64, 0.35);
  padding: 6px;
}

.brand-logo img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.brand-text {
  letter-spacing: 0.18em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.nav-links a {
  font-size: 0.95rem;
  letter-spacing: 0.04em;
  position: relative;
  padding-bottom: 0.2rem;
}

.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  transform: scaleX(0);
  transform-origin: right;
  background: var(--color-orange);
  transition: transform 0.3s ease;
}

.nav-links a:focus-visible,
.nav-links a:hover {
  color: var(--color-orange);
}

.nav-links a:hover::after,
.nav-links a:focus-visible::after {
  transform: scaleX(1);
  transform-origin: left;
}

.hero {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding-top: clamp(8rem, 10vw, 12rem);
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at top right, rgba(28, 110, 220, 0.35), transparent 55%),
    linear-gradient(180deg, rgba(16, 37, 64, 0.8), rgba(11, 23, 38, 1));
  z-index: 1;
}

.hero-media {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.hero-media img,
.hero-media video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(1.1) contrast(1.05);
}

.hero-content {
  position: relative;
  z-index: 2;
  width: min(900px, 100%);
  text-align: left;
}

.hero-kicker {
  text-transform: uppercase;
  letter-spacing: 0.32em;
  font-size: 0.75rem;
  margin-bottom: 1rem;
  color: rgba(255, 255, 255, 0.68);
}

.hero-title {
  font-family: var(--font-heading);
  font-size: clamp(2.7rem, 5vw, 4.5rem);
  margin-bottom: 1.2rem;
  line-height: 1.1;
}

.hero-title span {
  color: var(--color-orange);
}

.hero-body {
  font-size: clamp(1rem, 2vw, 1.2rem);
  max-width: 32rem;
  margin-bottom: 2.5rem;
  color: rgba(255, 255, 255, 0.78);
}

.cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 1.6rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 600;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-blue), var(--color-orange));
  color: var(--color-white);
  box-shadow: 0 15px 25px rgba(16, 37, 64, 0.4);
}

.btn-primary:hover {
  transform: translateY(-4px) scale(1.01);
  box-shadow: 0 20px 35px rgba(28, 110, 220, 0.45);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.16);
  color: var(--color-white);
}

.btn-secondary:hover {
  transform: translateY(-4px);
  border-color: rgba(255, 255, 255, 0.36);
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(2.1rem, 3vw, 3rem);
  margin-bottom: 0.75rem;
}

.section-subtitle {
  font-size: clamp(1rem, 2vw, 1.1rem);
  color: rgba(255, 255, 255, 0.72);
  max-width: 36rem;
  margin-bottom: 3rem;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(1.5rem, 4vw, 3rem);
}

.service-card {
  position: relative;
  padding: 2.5rem 2rem;
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.06), rgba(16, 37, 64, 0.2));
  border-radius: 26px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  overflow: hidden;
  transition: transform 0.4s ease, border 0.4s ease;
  backdrop-filter: blur(12px);
}

.service-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(140deg, rgba(28, 110, 220, 0.18), transparent 60%);
  opacity: 0;
  transition: opacity 0.4s ease;
}

.service-icon {
  width: 52px;
  height: 52px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.08);
  display: grid;
  place-items: center;
  margin-bottom: 1.5rem;
  color: var(--color-orange);
}

.service-icon i {
  font-size: 1.4rem;
}

.service-card h3 {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  margin-bottom: 0.95rem;
}

.service-card ul {
  margin: 0;
  padding-left: 1.2rem;
  color: rgba(255, 255, 255, 0.76);
}

.service-card li {
  margin-bottom: 0.55rem;
}

.service-card:hover {
  transform: translateY(-12px);
  border-color: rgba(255, 122, 69, 0.4);
}

.service-card:hover::after {
  opacity: 1;
}

.facility-section {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}

.facility-media {
  position: relative;
  border-radius: 32px;
  overflow: hidden;
  box-shadow: 0 20px 45px rgba(16, 37, 64, 0.5);
}

.facility-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(160deg, rgba(16, 37, 64, 0.2), rgba(255, 122, 69, 0.25));
}

.facility-details {
  display: grid;
  gap: 1.4rem;
}

.facility-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.badge {
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.fleet-carousel {
  position: relative;
  margin-top: 2rem;
}

.swiper {
  width: 100%;
  padding-bottom: 4rem;
}

.swiper-slide {
  background: rgba(255, 255, 255, 0.06);
  border-radius: 28px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: clamp(2rem, 3vw, 3rem);
  display: grid;
  gap: 1rem;
  min-height: 320px;
}

.fleet-image {
  width: 100%;
  height: 180px;
  border-radius: 18px;
  background: linear-gradient(135deg, rgba(28, 110, 220, 0.45), rgba(16, 37, 64, 0.5));
  display: grid;
  place-items: center;
  font-size: 1.15rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.swiper-pagination-bullet {
  background: rgba(255, 255, 255, 0.5);
}

.swiper-button-next,
.swiper-button-prev {
  color: var(--color-orange);
}

.metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(1.5rem, 4vw, 3rem);
  margin-top: clamp(3rem, 6vw, 4rem);
}

.metric-card {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(16, 37, 64, 0.15));
  border-radius: 24px;
  padding: clamp(1.8rem, 3vw, 2.4rem);
  border: 1px solid rgba(255, 255, 255, 0.08);
  text-align: center;
}

.metric-number {
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-family: var(--font-heading);
  color: var(--color-orange);
  margin-bottom: 0.4rem;
}

.metric-label {
  font-size: 0.95rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.68);
}

.why-grid {
  margin: 3.5rem auto;
  display: grid;
  gap: clamp(1.5rem, 3vw, 2.5rem);
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.why-card {
  border-radius: 28px;
  padding: clamp(2rem, 3vw, 2.6rem);
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.04);
  display: grid;
  gap: 0.8rem;
}

.why-card h3 {
  font-size: 1.25rem;
  font-family: var(--font-heading);
}

.timeline {
  position: relative;
  padding-left: 2rem;
  border-left: 1px solid rgba(255, 255, 255, 0.15);
  margin-top: 2.5rem;
  display: grid;
  gap: 1.6rem;
}

.timeline-item {
  position: relative;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: -2.7rem;
  top: 0.35rem;
  width: 12px;
  height: 12px;
  background: var(--color-orange);
  border-radius: 50%;
  box-shadow: 0 0 0 8px rgba(255, 122, 69, 0.15);
}

.badge-uen {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  background: rgba(16, 37, 64, 0.6);
  border: 1px solid rgba(28, 110, 220, 0.35);
  padding: 0.65rem 1.1rem;
  border-radius: 999px;
  margin-top: 1rem;
  font-size: 0.95rem;
}

.contact-section {
  background: linear-gradient(180deg, rgba(16, 37, 64, 0.3), rgba(28, 110, 220, 0.35));
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(2rem, 4vw, 3rem);
}

.contact-card {
  border-radius: 28px;
  padding: clamp(2rem, 3vw, 2.6rem);
  background: rgba(11, 23, 38, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 18px 40px rgba(16, 37, 64, 0.45);
}

.contact-card form {
  display: grid;
  gap: 1.2rem;
}

.form-row {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.input,
.textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  background: rgba(255, 255, 255, 0.05);
  color: var(--color-white);
}

.input::placeholder,
.textarea::placeholder {
  color: rgba(255, 255, 255, 0.5);
}

.textarea {
  min-height: 140px;
  resize: vertical;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.contact-details {
  display: grid;
  gap: 1.5rem;
  padding: clamp(2rem, 3vw, 2.6rem);
  border-radius: 28px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.05);
}

.detail-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  color: rgba(255, 255, 255, 0.78);
}

.detail-item span.icon {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.1);
  display: grid;
  place-items: center;
  color: var(--color-orange);
}

.detail-item span.icon i {
  font-size: 1.1rem;
}

.map-frame {
  width: 100%;
  height: 240px;
  border-radius: 22px;
  border: 0;
}

footer {
  padding: 2.5rem var(--gutter);
  background: rgba(11, 23, 38, 0.95);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-grid {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  width: min(var(--max-width), 100%);
  margin: 0 auto;
}

.footer-links {
  display: flex;
  gap: 1.2rem;
  font-size: 0.9rem;
}

/* Responsive adjustments */

@media (max-width: 1024px) {
  .services-grid,
  .facility-section,
  .contact-grid,
  .why-grid,
  .metrics {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  nav {
    flex-direction: column;
    gap: 1rem;
  }

  .nav-links {
    flex-wrap: wrap;
    justify-content: center;
  }
}

@media (max-width: 768px) {
  header {
    padding: 0.8rem var(--gutter);
  }

  .hero {
    text-align: center;
  }

  .hero-body {
    margin-inline: auto;
  }

  .services-grid,
  .facility-section,
  .contact-grid,
  .metrics,
  .why-grid {
    grid-template-columns: 1fr;
  }

  .service-card {
    padding: 2rem 1.5rem;
  }

  .facility-media {
    min-height: 300px;
  }

  .form-row {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 520px) {
  .footer-grid {
    flex-direction: column;
    text-align: center;
  }

  .cta-group {
    justify-content: center;
  }

  .badge {
    font-size: 0.75rem;
  }
}