/* ========================
   BETEL TRANSPORTES – CSS
   Brand: Navy #1C2D52 | Orange #E8941A
   ======================== */

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

:root {
  --navy:      #1C2D52;
  --navy-dark: #111e38;
  --navy-mid:  #253660;
  --orange:    #E8941A;
  --orange-dk: #c97c10;
  --white:     #ffffff;
  --off-white: #f7f8fb;
  --light-gray:#eef0f5;
  --text:      #2c3e5a;
  --text-muted:#6b7d9a;
  --border:    #dde3ef;
  --radius:    12px;
  --radius-lg: 20px;
  --shadow:    0 4px 24px rgba(28,45,82,0.10);
  --shadow-md: 0 8px 40px rgba(28,45,82,0.15);
  --shadow-lg: 0 16px 64px rgba(28,45,82,0.20);
  --transition: 0.3s cubic-bezier(.4,0,.2,1);
  --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

html { scroll-behavior: smooth; font-size: 16px; }

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

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

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

ul { list-style: none; }

/* ---- CONTAINER ---- */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---- SECTION HELPERS ---- */
.section { padding: 100px 0; }
.section--dark { background: var(--navy-dark); }
.section--light-gray { background: var(--light-gray); }

.section__header {
  text-align: center;
  margin-bottom: 60px;
}

.section__tag {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--orange);
  background: rgba(232,148,26,0.1);
  border: 1px solid rgba(232,148,26,0.25);
  border-radius: 999px;
  padding: 4px 16px;
  margin-bottom: 14px;
}

.section__title {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 800;
  color: var(--navy);
  line-height: 1.2;
  letter-spacing: -0.02em;
}

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

.section__desc {
  margin-top: 16px;
  color: var(--text-muted);
  font-size: 1.05rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.highlight { color: var(--orange); }

.mt-1 { margin-top: 28px; display: inline-flex; }

/* ---- BUTTONS ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: 999px;
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  border: 2px solid transparent;
  transition: var(--transition);
  white-space: nowrap;
}

.btn--primary {
  background: var(--orange);
  color: var(--white);
  border-color: var(--orange);
}
.btn--primary:hover {
  background: var(--orange-dk);
  border-color: var(--orange-dk);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(232,148,26,0.4);
}

.btn--outline {
  background: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,0.5);
}
.btn--outline:hover {
  border-color: var(--white);
  background: rgba(255,255,255,0.1);
  transform: translateY(-2px);
}

.btn--lg { padding: 16px 36px; font-size: 1rem; }
.btn--full { width: 100%; justify-content: center; }

.btn__arrow { font-size: 1.1em; transition: transform var(--transition); }
.btn:hover .btn__arrow { transform: translateX(4px); }

/* ========================
   HEADER / NAV
   ======================== */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: transparent;
  transition: background var(--transition), box-shadow var(--transition), padding var(--transition);
  padding: 8px 0;
}

.header.scrolled {
  background: var(--navy-dark);
  box-shadow: 0 2px 20px rgba(0,0,0,0.25);
  padding: 4px 0;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 84px;
}

.nav__logo-img {
  width: clamp(160px, 18vw, 220px);
  height: auto;
  filter: none;
  transition: filter var(--transition), opacity var(--transition);
  background: rgba(255,255,255,0.92);
  border-radius: 8px;
  padding: 8px 12px;
}

.header.scrolled .nav__logo-img {
  background: transparent;
  padding: 0;
  filter: brightness(0) invert(1);
}

.nav__menu {
  display: flex;
  align-items: center;
  gap: 36px;
}

.nav__link {
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.9);
  transition: color var(--transition);
  position: relative;
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0; right: 0;
  height: 2px;
  background: var(--orange);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform var(--transition);
}

.nav__link:hover,
.nav__link.active { color: var(--orange); }

.nav__link:hover::after,
.nav__link.active::after { transform: scaleX(1); }

.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav__toggle span {
  display: block;
  width: 26px;
  height: 2.5px;
  background: var(--white);
  border-radius: 2px;
  transition: var(--transition);
}

/* ========================
   HERO
   ======================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background:
    linear-gradient(135deg, rgba(17,30,56,0.85) 0%, rgba(28,45,82,0.7) 60%, rgba(232,148,26,0.2) 100%),
    url("background_site.jpg");
  background-size: cover;
  background-position: center;
  overflow: hidden;
}



.hero__overlay {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 70% 50%, rgba(232,148,26,0.06) 0%, transparent 60%);
}

.hero__content {
  position: relative;
  z-index: 2;
  max-width: 680px;
  padding-top: 80px;
}

.hero__tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--orange);
  background: rgba(232,148,26,0.12);
  border: 1px solid rgba(232,148,26,0.3);
  border-radius: 999px;
  padding: 6px 18px;
  margin-bottom: 24px;
}

.hero__title {
  font-size: clamp(2.4rem, 6vw, 4rem);
  font-weight: 900;
  color: var(--white);
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
}

.hero__subtitle {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.75);
  line-height: 1.7;
  margin-bottom: 40px;
  max-width: 540px;
}

.hero__actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero__scroll-indicator {
  position: absolute;
  bottom: 36px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
}

.scroll-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--orange);
  animation: scrollBounce 2s ease-in-out infinite;
  margin: 0 auto;
}

@keyframes scrollBounce {
  0%, 100% { transform: translateY(0); opacity: 1; }
  50% { transform: translateY(10px); opacity: 0.4; }
}

/* ========================
   STATS
   ======================== */
.stats {
  background: var(--navy);
  padding: 0;
}

.stats__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
}

.stat-card {
  padding: 52px 32px;
  text-align: center;
  border-right: 1px solid rgba(255,255,255,0.08);
  position: relative;
  overflow: hidden;
  transition: background var(--transition);
}
.stat-card:last-child { border-right: none; }
.stat-card:hover { background: rgba(232,148,26,0.08); }

.stat-card__number {
  font-size: clamp(2.5rem, 5vw, 3.6rem);
  font-weight: 900;
  color: var(--white);
  letter-spacing: -0.04em;
  line-height: 1;
}
.stat-card__plus {
  font-size: 2rem;
  font-weight: 900;
  color: var(--orange);
  vertical-align: super;
}
.stat-card__label {
  font-size: 0.85rem;
  font-weight: 600;
  color: rgba(255,255,255,0.6);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-top: 8px;
}

/* ========================
   ABOUT
   ======================== */
.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about__image-wrapper {
  position: relative;
}

.about__image-block {
  width: 100%;
  aspect-ratio: 4/3;
  background: url("about_truck.png") no-repeat center/cover;
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: relative;
  box-shadow: var(--shadow-lg);
}



.about__badge {
  position: absolute;
  bottom: -20px;
  right: -20px;
  width: 110px;
  height: 110px;
  background: var(--orange);
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 32px rgba(232,148,26,0.4);
  z-index: 2;
}
.about__badge-num {
  font-size: 2rem;
  font-weight: 900;
  color: var(--white);
  line-height: 1;
}
.about__badge-text {
  font-size: 0.62rem;
  font-weight: 700;
  color: var(--white);
  text-align: center;
  line-height: 1.3;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.about__dots {
  position: absolute;
  top: -24px;
  left: -24px;
  width: 130px;
  height: 130px;
  background-image: radial-gradient(var(--orange) 1.5px, transparent 1.5px);
  background-size: 18px 18px;
  opacity: 0.35;
  z-index: 0;
}

.about__content .section__tag { margin-bottom: 14px; }
.about__content .section__title { margin-bottom: 20px; }

.about__text {
  color: var(--text-muted);
  font-size: 0.97rem;
  line-height: 1.75;
  margin-bottom: 14px;
}

.about__list {
  margin: 24px 0 28px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.about__list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text);
}

.check {
  color: var(--orange);
  font-size: 1.1rem;
}

/* ========================
   SERVICES
   ======================== */
.services__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.service-card {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius);
  padding: 36px 28px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--orange);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}

.service-card:hover {
  background: rgba(255,255,255,0.08);
  border-color: rgba(232,148,26,0.3);
  transform: translateY(-4px);
  box-shadow: 0 12px 36px rgba(0,0,0,0.3);
}

.service-card:hover::before { transform: scaleX(1); }

.service-card--featured {
  background: rgba(232,148,26,0.12);
  border-color: rgba(232,148,26,0.3);
}
.service-card--featured::before { transform: scaleX(1); }

.service-card__icon { font-size: 2.4rem; margin-bottom: 18px; }

.service-card__title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 12px;
}

.service-card__text {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.6);
  line-height: 1.65;
}

/* ========================
   FLEET
   ======================== */
.fleet__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.fleet-card {
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition);
}

.fleet-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.fleet-card__img {
  position: relative;
  aspect-ratio: 3/4;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
}

/* Fleet card color backgrounds */
.fleet-card__img--bau {
  background: linear-gradient(160deg, var(--navy) 30%, #2a4080 100%);
}
.fleet-card__img--sider {
  background: linear-gradient(160deg, #1a3a6a 30%, var(--navy-mid) 100%);
}
.fleet-card__img--graneleiro {
  background: linear-gradient(160deg, #1e3558 30%, #2d4870 100%);
}
.fleet-card__img--plataforma {
  background: linear-gradient(160deg, var(--navy-dark) 30%, #1f3060 100%);
}

/* Truck icon in fleet cards */
.fleet-card__img::before {
  content: '🚚';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -60%);
  font-size: 4rem;
  opacity: 0.25;
  transition: opacity var(--transition), transform var(--transition);
}

.fleet-card:hover .fleet-card__img::before {
  opacity: 0.5;
  transform: translate(-50%, -65%) scale(1.1);
}

.fleet-card__overlay {
  position: relative;
  z-index: 2;
  width: 100%;
  padding: 24px 20px;
  background: linear-gradient(0deg, rgba(17,30,56,0.95) 0%, transparent 100%);
}

.fleet-card__name {
  font-size: 1rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 6px;
}

.fleet-card__desc {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.65);
  line-height: 1.5;
}

/* ========================
   DIFFERENTIALS
   ======================== */
.diff__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.diff-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 36px 24px;
  box-shadow: var(--shadow);
  transition: var(--transition);
  border: 1px solid var(--border);
  text-align: center;
}

.diff-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: var(--orange);
}

.diff-card__icon-wrap {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: rgba(232,148,26,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  transition: background var(--transition);
}
.diff-card:hover .diff-card__icon-wrap {
  background: var(--orange);
}
.diff-card:hover .diff-card__icon-wrap .diff-icon {
  color: var(--white);
}

.diff-icon {
  width: 28px;
  height: 28px;
  color: var(--orange);
  transition: color var(--transition);
}

.diff-card__title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 10px;
}

.diff-card__text {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* ========================
   TESTIMONIALS
   ======================== */
.testimonials__slider {
  position: relative;
  min-height: 240px;
}

.testimonial-card {
  display: none;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-lg);
  padding: 48px 52px;
  max-width: 800px;
  margin: 0 auto;
  animation: fadeUp 0.4s ease;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

.testimonial-card.active { display: block; }

.testimonial-stars {
  color: var(--orange);
  font-size: 1.2rem;
  letter-spacing: 4px;
  margin-bottom: 20px;
}

.testimonial-text {
  font-size: 1.05rem;
  color: rgba(255,255,255,0.85);
  line-height: 1.7;
  font-style: italic;
  margin-bottom: 28px;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 16px;
}

.testimonial-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--orange);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--white);
  flex-shrink: 0;
}

.testimonial-author strong {
  display: block;
  font-size: 0.95rem;
  color: var(--white);
  font-weight: 700;
}

.testimonial-author span {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.55);
}

.testimonials__nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  margin-top: 36px;
}

.tst-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 2px solid rgba(255,255,255,0.2);
  background: transparent;
  color: var(--white);
  font-size: 1.4rem;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
}

.tst-btn:hover {
  border-color: var(--orange);
  background: var(--orange);
}

.tst-dots { display: flex; gap: 8px; }

.tst-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255,255,255,0.3);
  cursor: pointer;
  transition: var(--transition);
}
.tst-dot.active {
  background: var(--orange);
  width: 24px;
  border-radius: 4px;
}

/* ========================
   CTA BANNER
   ======================== */
.cta-banner {
  background: linear-gradient(135deg, var(--orange) 0%, var(--orange-dk) 100%);
  padding: 72px 0;
}

.cta-banner__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}

.cta-banner__text h2 {
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 800;
  color: var(--white);
  margin-bottom: 8px;
}

.cta-banner__text p {
  color: rgba(255,255,255,0.85);
  font-size: 1rem;
}

.cta-banner .btn--primary {
  background: var(--navy);
  border-color: var(--navy);
  color: var(--white);
  flex-shrink: 0;
}
.cta-banner .btn--primary:hover {
  background: var(--navy-dark);
  border-color: var(--navy-dark);
  box-shadow: 0 8px 24px rgba(17,30,56,0.4);
}

/* ========================
   CONTACT
   ======================== */
.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 80px;
  align-items: start;
}

.contact__desc {
  color: var(--text-muted);
  font-size: 0.97rem;
  line-height: 1.7;
  margin-bottom: 32px;
}

.contact__list { display: flex; flex-direction: column; gap: 20px; }

.contact__item {
  display: flex;
  align-items: center;
  gap: 16px;
}

.contact__icon-wrap {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  background: rgba(232,148,26,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.contact__icon {
  width: 20px;
  height: 20px;
  color: var(--orange);
}

.contact__item strong {
  display: block;
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  font-weight: 600;
  margin-bottom: 2px;
}
.contact__item span {
  font-size: 0.92rem;
  color: var(--navy);
  font-weight: 500;
}

.contact__social {
  display: flex;
  gap: 12px;
  margin-top: 32px;
}

.social-link {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--light-gray);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  border: 1px solid var(--border);
}
.social-link:hover {
  background: var(--orange);
  border-color: var(--orange);
  transform: translateY(-2px);
}
.social-link:hover .social-icon { color: var(--white); stroke: var(--white); }

.social-icon {
  width: 18px;
  height: 18px;
  color: var(--text-muted);
  transition: color var(--transition), stroke var(--transition);
}

/* FORM */
.contact-form {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 44px;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border);
}

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

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.form-row .form-group { margin-bottom: 0; }

label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--navy);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 6px;
}

input[type="text"],
input[type="tel"],
input[type="email"],
select,
textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--border);
  border-radius: 10px;
  font-family: var(--font);
  font-size: 0.92rem;
  color: var(--text);
  background: var(--off-white);
  transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
  outline: none;
  appearance: none;
}

input:focus, select:focus, textarea:focus {
  border-color: var(--orange);
  background: var(--white);
  box-shadow: 0 0 0 3px rgba(232,148,26,0.12);
}

textarea { resize: vertical; min-height: 110px; }

select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%236b7d9a' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 18px;
  padding-right: 40px;
}

.form-privacy {
  text-align: center;
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: 14px;
}

/* ========================
   FOOTER
   ======================== */
.footer {
  background: var(--navy-dark);
  padding-top: 80px;
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 64px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer__logo {
  width: clamp(180px, 20vw, 240px);
  height: auto;
  max-width: 100%;
  margin-bottom: 24px;
  filter: brightness(0) invert(1);
}

.footer__tagline {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.5);
  line-height: 1.7;
  margin-bottom: 24px;
}

.footer__social { display: flex; gap: 10px; }

.social-link--sm {
  width: 36px;
  height: 36px;
  background: rgba(255,255,255,0.07);
  border-color: rgba(255,255,255,0.1);
}
.social-link--sm .social-icon {
  color: rgba(255,255,255,0.6);
  stroke: rgba(255,255,255,0.6);
}
.social-link--sm:hover .social-icon {
  color: var(--white);
  stroke: var(--white);
}

.footer__col-title {
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--orange);
  margin-bottom: 20px;
}

.footer__links li { margin-bottom: 10px; }
.footer__links a {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.5);
  transition: color var(--transition);
}
.footer__links a:hover { color: var(--orange); }

.footer__contact-list li {
  font-size: 0.87rem;
  color: rgba(255,255,255,0.5);
  margin-bottom: 10px;
  line-height: 1.5;
}

.footer__bottom {
  padding: 24px 0;
}

.footer__bottom-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}

.footer__bottom p {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.35);
}

/* ========================
   BACK TO TOP
   ======================== */
.back-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--orange);
  color: var(--white);
  border: none;
  font-size: 1.2rem;
  cursor: pointer;
  box-shadow: 0 4px 16px rgba(232,148,26,0.5);
  z-index: 500;
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.3s, transform 0.3s;
  display: flex;
  align-items: center;
  justify-content: center;
}

.back-top.visible {
  opacity: 1;
  transform: translateY(0);
}

.back-top:hover { background: var(--orange-dk); }

/* ========================
   RESPONSIVE
   ======================== */
@media (max-width: 1100px) {
  .diff__grid { grid-template-columns: repeat(2, 1fr); }
  .fleet__grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 900px) {
  .about__grid { grid-template-columns: 1fr; gap: 48px; }
  .about__image-wrapper { max-width: 480px; margin: 0 auto; }
  .contact__grid { grid-template-columns: 1fr; gap: 48px; }
  .stats__grid { grid-template-columns: repeat(2, 1fr); }
  .stat-card { border-right: none; border-bottom: 1px solid rgba(255,255,255,0.08); }
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .services__grid { grid-template-columns: repeat(2, 1fr); }
  .cta-banner__inner { flex-direction: column; text-align: center; }
}

@media (max-width: 640px) {
  .section { padding: 72px 0; }
  .nav__menu {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: var(--navy-dark);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 32px;
    transform: translateX(100%);
    transition: transform var(--transition);
    z-index: 999;
  }
  .nav__menu.open { transform: translateX(0); }
  .nav__link { font-size: 1.2rem; }
  .nav__toggle { display: flex; z-index: 1000; }
  .stats__grid { grid-template-columns: 1fr 1fr; }
  .fleet__grid { grid-template-columns: 1fr; }
  .services__grid { grid-template-columns: 1fr; }
  .diff__grid { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr; gap: 32px; }
  .hero__actions { flex-direction: column; }
  .form-row { grid-template-columns: 1fr; }
  .testimonial-card { padding: 32px 24px; }
  .contact-form { padding: 28px 20px; }
  .footer__logo { margin: 0 auto 20px auto; }
  .footer__brand { text-align: center; }
  .footer__social { justify-content: center; }
  .footer__bottom-inner { flex-direction: column; text-align: center; }
}