/* ============================================
   SHUTTLES PRO — STYLE.CSS
   ============================================ */

/* --- RESET & BASE --- */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --navy: #070772;
  --navy-hover: #0a0a99;
  --light-blue: #a0ccdc;
  --white: #FFFFFF;
  --black: #000000;
  --body-text: #1f2937;
  --grey-bg: #F8F9FA;
  --road-grey: #6B7280;
  --green: #16A34A;
  --red: #DC2626;
  --yellow: #F5C518;
  --card-shadow: 0 4px 20px rgba(7, 7, 114, 0.08);
  --card-border: 1px solid rgba(160, 204, 220, 0.3);
  --radius-sm: 8px;
  --radius-lg: 12px;
  --nav-height: 72px;
  --nav-height-mobile: 60px;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
}

body {
  font-family: 'Inter', sans-serif;
  font-weight: 400;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--body-text);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}

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

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

ul {
  list-style: none;
}

/* --- TYPOGRAPHY --- */
h1, h2, h3 {
  font-family: 'Montserrat', sans-serif;
  line-height: 1.2;
  color: var(--navy);
}

h1 {
  font-size: 3.5rem;
  font-weight: 700;
}

h2 {
  font-size: 2rem;
  font-weight: 600;
}

h3 {
  font-size: 1.25rem;
  font-weight: 600;
}

/* --- UTILITIES --- */
.container {
  width: 100%;
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 100px 0;
}

.section-white {
  background: var(--white);
}

.section-grey {
  background: var(--grey-bg);
}

.section-navy {
  background: var(--navy);
}

.section-label {
  display: block;
  font-family: 'Inter', sans-serif;
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--light-blue);
  margin-bottom: 16px;
}

.section-label-light {
  color: var(--light-blue);
}

.section-title {
  margin-bottom: 24px;
  max-width: 600px;
}

.section-title-light {
  color: var(--white);
}

.section-body {
  color: var(--body-text);
  max-width: 540px;
}

/* --- BUTTONS --- */
.btn {
  display: inline-block;
  font-family: 'Montserrat', sans-serif;
  font-weight: 600;
  font-size: 1rem;
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
  border: none;
  text-align: center;
}

.btn-primary {
  background: var(--navy);
  color: var(--white);
  padding: 14px 32px;
}

.btn-primary:hover {
  background: var(--navy-hover);
}

.btn-outline {
  background: transparent;
  color: var(--navy);
  border: 2px solid var(--navy);
  padding: 12px 30px;
}

.btn-outline:hover {
  background: var(--navy);
  color: var(--white);
}

.btn-light {
  background: var(--light-blue);
  color: var(--navy);
  padding: 14px 32px;
}

.btn-light:hover {
  background: var(--white);
}

.btn-full {
  width: 100%;
}

.btn-nav {
  padding: 10px 24px;
  font-size: 0.9rem;
}

/* ============================================
   NAV
   ============================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--nav-height);
  background: var(--white);
  z-index: 1000;
  transition: box-shadow 0.3s ease;
}

.nav.scrolled {
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
}

.nav-container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo img {
  width: 160px;
  min-width: 75px;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 40px;
}

.nav-links {
  display: flex;
  gap: 32px;
}

.nav-links a {
  font-family: 'Inter', sans-serif;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--navy);
  transition: color 0.2s ease;
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--light-blue);
  transition: width 0.2s ease;
}

.nav-links a:hover::after {
  width: 100%;
}

.nav-buttons {
  display: flex;
  gap: 12px;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  width: 32px;
  height: 24px;
  position: relative;
  z-index: 1001;
}

.hamburger,
.hamburger::before,
.hamburger::after {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--navy);
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.hamburger {
  position: relative;
}

.hamburger::before,
.hamburger::after {
  content: '';
  position: absolute;
  left: 0;
}

.hamburger::before {
  top: -8px;
}

.hamburger::after {
  top: 8px;
}

.nav-toggle.active .hamburger {
  background: transparent;
}

.nav-toggle.active .hamburger::before {
  top: 0;
  transform: rotate(45deg);
}

.nav-toggle.active .hamburger::after {
  top: 0;
  transform: rotate(-45deg);
}

/* ============================================
   HERO
   ============================================ */
.hero {
  min-height: 100vh;
  background: var(--navy);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: calc(var(--nav-height) + 40px) 24px 0;
  position: relative;
}

.hero-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 24px;
  max-width: 800px;
}

.hero-label {
  font-family: 'Inter', sans-serif;
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  color: var(--light-blue);
}

.hero-headline {
  color: var(--white);
  font-size: 3.5rem;
  line-height: 1.1;
}

.hero-sub {
  font-size: 1.25rem;
  color: var(--light-blue);
  max-width: 560px;
  line-height: 1.6;
}

.hero-tagline {
  width: 100%;
  padding: 20px 24px;
  border-top: 1px solid rgba(160, 204, 220, 0.2);
  text-align: center;
}

.hero-tagline p {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.95rem;
}

/* ============================================
   ABOUT
   ============================================ */
.about-grid {
  display: grid;
  grid-template-columns: 55% 45%;
  gap: 60px;
  align-items: center;
}

.about-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.about-graphic {
  width: 280px;
  height: 280px;
  border-radius: 50%;
  background: var(--grey-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.about-graphic i {
  font-size: 80px;
  color: var(--navy);
}

.about-graphic img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
  display: block;
}

/* ============================================
   SERVICES (3 CARDS)
   ============================================ */
#services {
  text-align: center;
}

#services .section-title {
  margin-left: auto;
  margin-right: auto;
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-top: 48px;
}

.card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  box-shadow: var(--card-shadow);
  border: var(--card-border);
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: 0 8px 30px rgba(7, 7, 114, 0.12);
}

.card-icon {
  margin-bottom: 20px;
}

.card-icon i {
  font-size: 48px;
  color: var(--light-blue);
}

.card-title {
  color: var(--navy);
  margin-bottom: 12px;
}

.card-body {
  color: var(--body-text);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* ============================================
   WHO WE SERVE
   ============================================ */
#serve {
  text-align: center;
}

#serve .section-title {
  margin-left: auto;
  margin-right: auto;
}

.serve-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  margin-top: 48px;
  margin-bottom: 40px;
}

.serve-block {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  padding: 32px 16px;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(160, 204, 220, 0.2);
  transition: transform 0.3s ease, border-color 0.3s ease;
}

.serve-block:hover {
  transform: scale(1.05);
  border-color: var(--light-blue);
}

.serve-block i {
  font-size: 48px;
  color: var(--light-blue);
}

.serve-block span {
  color: var(--white);
  font-family: 'Montserrat', sans-serif;
  font-weight: 600;
  font-size: 1rem;
}

.serve-footer {
  color: rgba(255, 255, 255, 0.7);
  font-size: 1rem;
  max-width: 600px;
  margin: 0 auto;
}

/* ============================================
   THE DIFFERENCE
   ============================================ */
.difference-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.stats-grid {
  display: flex;
  flex-direction: column;
  gap: 36px;
}

.stat {
  text-align: center;
  padding: 24px;
  border-radius: var(--radius-sm);
  background: var(--grey-bg);
}

.stat-number {
  font-family: 'Montserrat', sans-serif;
  font-size: 3rem;
  font-weight: 700;
  color: var(--navy);
  line-height: 1;
}

.stat-plus {
  font-family: 'Montserrat', sans-serif;
  font-size: 3rem;
  font-weight: 700;
  color: var(--navy);
  line-height: 1;
}

.stat-label {
  display: block;
  margin-top: 8px;
  color: var(--road-grey);
  font-size: 0.875rem;
  font-weight: 500;
}

/* ============================================
   TECHNOLOGY
   ============================================ */
#technology {
  text-align: center;
}

#technology .section-title {
  margin-left: auto;
  margin-right: auto;
}

.tech-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  margin-top: 48px;
}

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

.tech-icon {
  margin-bottom: 20px;
}

.tech-icon i {
  font-size: 48px;
  color: var(--navy);
}

.tech-title {
  color: var(--navy);
  margin-bottom: 12px;
}

.tech-body {
  color: var(--body-text);
  font-size: 0.95rem;
  line-height: 1.7;
}

.tech-footer {
  margin-top: 48px;
  color: var(--road-grey);
  font-size: 0.95rem;
}

/* ============================================
   CONTACT
   ============================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}

.contact-info {
  padding-top: 20px;
}

.contact-sub {
  color: rgba(255, 255, 255, 0.7);
  font-size: 1.05rem;
  line-height: 1.7;
  margin-bottom: 32px;
}

.contact-details p {
  color: var(--white);
  font-size: 1rem;
  margin-bottom: 12px;
}

.contact-details i {
  color: var(--light-blue);
  margin-right: 10px;
  width: 20px;
}

.contact-form-wrapper {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.15);
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--body-text);
  margin-bottom: 6px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  font-family: 'Inter', sans-serif;
  font-size: 1rem;
  color: var(--body-text);
  background: var(--grey-bg);
  border: 1px solid #e5e7eb;
  border-radius: 6px;
  transition: border-color 0.2s ease;
  appearance: none;
  -webkit-appearance: none;
}

.form-group select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%236B7280' d='M1.41 0L6 4.58 10.59 0 12 1.41l-6 6-6-6z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--light-blue);
}

.form-group textarea {
  resize: vertical;
  min-height: 100px;
}

.form-success {
  text-align: center;
  padding: 40px 20px;
}

.form-success i {
  font-size: 48px;
  color: var(--green);
  margin-bottom: 16px;
}

.form-success h3 {
  color: var(--navy);
  margin-bottom: 8px;
}

.form-success p {
  color: var(--road-grey);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  background: var(--navy);
  padding: 60px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(160, 204, 220, 0.2);
}

.footer-brand img {
  width: 160px;
  margin-bottom: 16px;
}

.footer-tagline {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.9rem;
}

.footer-nav {
  display: flex;
  flex-direction: column;
  gap: 12px;
  text-align: center;
}

.footer-nav a {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.95rem;
  transition: color 0.2s ease;
}

.footer-nav a:hover {
  color: var(--white);
}

.footer-contact {
  text-align: right;
}

.footer-contact p {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.95rem;
  margin-bottom: 8px;
}

.footer-contact i {
  color: var(--light-blue);
  margin-right: 8px;
}

.footer-bottom {
  padding: 20px 0;
  text-align: center;
}

.footer-bottom p {
  color: rgba(255, 255, 255, 0.4);
  font-size: 0.85rem;
}

/* ============================================
   ANIMATIONS
   ============================================ */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

.animate-on-scroll:nth-child(2) { transition-delay: 0.15s; }
.animate-on-scroll:nth-child(3) { transition-delay: 0.3s; }

@media (prefers-reduced-motion: reduce) {
  .animate-on-scroll {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ============================================
   RESPONSIVE — MOBILE (768px)
   ============================================ */
@media (max-width: 768px) {
  :root {
    --nav-height: var(--nav-height-mobile);
  }

  html {
    scroll-padding-top: var(--nav-height-mobile);
  }

  .nav {
    height: var(--nav-height-mobile);
  }

  .nav-toggle {
    display: block;
  }

  .nav-menu {
    position: fixed;
    top: var(--nav-height-mobile);
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    padding: 24px;
    gap: 24px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.3s ease, opacity 0.3s ease;
  }

  .nav-menu.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav-links {
    flex-direction: column;
    text-align: center;
    gap: 20px;
  }

  .nav-buttons {
    flex-direction: column;
    width: 100%;
  }

  .nav-buttons .btn {
    width: 100%;
    text-align: center;
  }

  h1, .hero-headline {
    font-size: 2.2rem;
  }

  h2 {
    font-size: 1.6rem;
  }

  .section {
    padding: 64px 0;
  }

  .hero {
    padding-top: calc(var(--nav-height-mobile) + 24px);
  }

  .hero-sub {
    font-size: 1.05rem;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
  }

  .about-text .section-title,
  .about-text .section-body {
    max-width: 100%;
  }

  .about-graphic {
    width: 200px;
    height: 200px;
  }

  .about-graphic i {
    font-size: 56px;
  }

  .cards-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .serve-grid {
    grid-template-columns: 1fr 1fr;
    gap: 20px;
  }

  .difference-grid {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
  }

  .difference-text .section-title,
  .difference-text .section-body {
    max-width: 100%;
  }

  .stat-number,
  .stat-plus {
    font-size: 2.2rem;
  }

  .tech-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .contact-form-wrapper {
    padding: 28px 20px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 32px;
  }

  .footer-brand img {
    margin: 0 auto 16px;
  }

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