/* ==========================================================================
   FLEETEZEE — Core Design System & Global Styles
   Transportation Technology Company
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
  /* Fleetezee Brand Color Palette */
  --fz-black: #0B0D0F;
  --fz-charcoal-deep: #15191D;
  --fz-charcoal-surface: #1C2227;
  --fz-charcoal-border: rgba(255, 255, 255, 0.09);
  --fz-charcoal-border-light: rgba(255, 255, 255, 0.16);

  --fz-offwhite: #F7F7F4;
  --fz-light-surface: #FFFFFF;
  --fz-light-surface-subtle: #F0F0EC;
  --fz-light-border: #E3E4E0;
  --fz-light-border-dark: #D0D2CD;

  --fz-charcoal: #231F20;
  --fz-gray-muted: #848D97;
  --fz-gray-light: #B2B8BE;
  --fz-light-text-sub: #5A626A;

  /* TruckBill Product Identity Accents */
  --tb-teal: #3AA68C;
  --tb-teal-glow: rgba(58, 166, 140, 0.28);
  --tb-teal-soft: rgba(58, 166, 140, 0.12);
  --tb-azure: #3696D2;
  --tb-azure-glow: rgba(54, 150, 210, 0.28);
  --tb-azure-soft: rgba(54, 150, 210, 0.12);
  --tb-gradient: linear-gradient(135deg, #3AA68C 0%, #3696D2 100%);
  --tb-gradient-subtle: linear-gradient(135deg, rgba(58, 166, 140, 0.15) 0%, rgba(54, 150, 210, 0.15) 100%);

  --fz-jade-deep: #1D715D;

  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-mono: 'JetBrains Mono', SFMono-Regular, Menlo, Monaco, Consolas, monospace;

  /* Spacing Scale */
  --section-pad-y: clamp(4.5rem, 8vw, 8.5rem);
  --container-max-w: 1280px;

  /* Transition Curves */
  --ease-cinematic: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-snappy: cubic-bezier(0.2, 0.8, 0.2, 1);
}

/* Base Reset & Typography */
*, *::before, *::after {
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-sans);
  background-color: var(--fz-black);
  color: var(--fz-offwhite);
  line-height: 1.6;
  overflow-x: hidden;
  text-rendering: optimizeLegibility;
}

/* Headings & Balanced Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-sans);
  font-weight: 800;
  letter-spacing: -0.035em;
  line-height: 1.08;
  margin-top: 0;
  text-wrap: balance;
}

p {
  text-wrap: pretty;
  margin-bottom: 1.25rem;
}

a {
  color: inherit;
  text-decoration: none;
  transition: all 0.2s var(--ease-snappy);
}

/* Eyebrows & Labels */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: 1.25rem;
  color: var(--tb-teal);
}

.eyebrow::before {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--tb-teal);
  box-shadow: 0 0 10px var(--tb-teal);
}

.eyebrow.eyebrow-light {
  color: var(--tb-jade-deep);
}
.eyebrow.eyebrow-light::before {
  background: var(--tb-jade-deep);
  box-shadow: 0 0 8px rgba(29, 113, 93, 0.4);
}

/* Display Headings */
.display-hero {
  font-size: clamp(2.35rem, 5.5vw, 4.65rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.04;
}

.display-section {
  font-size: clamp(2rem, 4.2vw, 3.45rem);
  font-weight: 800;
  letter-spacing: -0.035em;
  line-height: 1.08;
}

.display-sub {
  font-size: clamp(1.25rem, 2.2vw, 1.75rem);
  font-weight: 500;
  letter-spacing: -0.02em;
  line-height: 1.35;
}

.lead-text {
  font-size: clamp(1.05rem, 1.6vw, 1.25rem);
  line-height: 1.65;
  color: var(--fz-gray-muted);
  font-weight: 400;
  max-width: 680px;
}

/* Alternating Section Rhythm (Dark / Light / Dark / Light / Dark) */
.section-dark {
  background-color: var(--fz-black);
  color: var(--fz-offwhite);
  padding: var(--section-pad-y) 0;
  position: relative;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.section-dark-charcoal {
  background-color: var(--fz-charcoal-deep);
  color: var(--fz-offwhite);
  padding: var(--section-pad-y) 0;
  position: relative;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.section-light {
  background-color: var(--fz-offwhite);
  color: var(--fz-charcoal);
  padding: var(--section-pad-y) 0;
  position: relative;
  border-top: 1px solid var(--fz-light-border);
}

.section-light h1, .section-light h2, .section-light h3, .section-light h4 {
  color: #0B0D0F;
}

.section-light .lead-text {
  color: var(--fz-light-text-sub);
}

/* Header & Navigation */
.fz-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1040;
  padding: 1.25rem 0;
  transition: all 0.35s var(--ease-cinematic);
  background: transparent;
}

.fz-header.scrolled {
  padding: 0.75rem 0;
  background: rgba(11, 13, 15, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 16px 32px rgba(0, 0, 0, 0.4);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header-logo-link {
  display: inline-flex;
  align-items: center;
}

.header-logo-link img,
.header-logo-link svg {
  height: 38px;
  width: auto;
}

.nav-desktop-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-desktop-links a {
  font-size: 0.875rem;
  font-weight: 500;
  color: #D1D5DB;
  letter-spacing: 0.01em;
  position: relative;
  padding: 0.35rem 0;
}

.nav-desktop-links a:hover,
.nav-desktop-links a.active {
  color: #FFFFFF;
}

.nav-desktop-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 1.5px;
  background: var(--tb-teal);
  transition: width 0.25s var(--ease-snappy);
}

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

.badge-flagship {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  background: var(--tb-teal-soft);
  color: var(--tb-teal);
  border: 1px solid rgba(58, 166, 140, 0.3);
  padding: 0.15rem 0.45rem;
  border-radius: 999px;
  margin-left: 0.35rem;
  text-transform: uppercase;
  font-weight: 600;
  letter-spacing: 0.04em;
}

/* Premium Buttons */
.btn-fz {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  padding: 0.75rem 1.6rem;
  border-radius: 8px;
  transition: all 0.25s var(--ease-snappy);
  cursor: pointer;
  text-decoration: none;
  line-height: 1.2;
  white-space: nowrap;
}

.btn-fz-primary {
  background-color: var(--fz-offwhite);
  color: var(--fz-black);
  border: 1px solid #FFFFFF;
}

.btn-fz-primary:hover {
  background-color: #FFFFFF;
  color: #000000;
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(255, 255, 255, 0.15);
}

.btn-fz-teal {
  background: var(--tb-teal);
  color: #FFFFFF;
  border: 1px solid var(--tb-teal);
}

.btn-fz-teal:hover {
  background: #31947b;
  color: #FFFFFF;
  transform: translateY(-2px);
  box-shadow: 0 12px 28px var(--tb-teal-glow);
}

.btn-fz-outline-dark {
  background: transparent;
  color: var(--fz-offwhite);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-fz-outline-dark:hover {
  border-color: rgba(255, 255, 255, 0.6);
  background: rgba(255, 255, 255, 0.05);
  color: #FFFFFF;
  transform: translateY(-2px);
}

.btn-fz-outline-light {
  background: transparent;
  color: var(--fz-charcoal);
  border: 1px solid var(--fz-light-border-dark);
}

.btn-fz-outline-light:hover {
  border-color: #0B0D0F;
  background: rgba(0, 0, 0, 0.04);
  color: #0B0D0F;
  transform: translateY(-2px);
}

.btn-fz-dark {
  background: var(--fz-black);
  color: #FFFFFF;
  border: 1px solid var(--fz-black);
}

.btn-fz-dark:hover {
  background: #1A1F24;
  color: #FFFFFF;
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.18);
}

.btn-fz-sm {
  padding: 0.5rem 1.1rem;
  font-size: 0.8125rem;
}

.btn-fz-lg {
  padding: 0.95rem 2.2rem;
  font-size: 0.95rem;
  border-radius: 10px;
}

/* Mobile Hamburger Menu */
.hamburger-toggle {
  display: none;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  width: 44px;
  height: 44px;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  z-index: 1060;
}

.hamburger-line {
  width: 22px;
  height: 2px;
  background-color: var(--fz-offwhite);
  transition: all 0.25s ease;
}

.hamburger-toggle.active .hamburger-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.hamburger-toggle.active .hamburger-line:nth-child(2) {
  opacity: 0;
}
.hamburger-toggle.active .hamburger-line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.mobile-nav-drawer {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background: rgba(11, 13, 15, 0.98);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  z-index: 1050;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 6rem 2rem 2.5rem;
  opacity: 0;
  pointer-events: none;
  transform: translateY(-10px);
  transition: all 0.3s var(--ease-cinematic);
}

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

.mobile-nav-links {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.mobile-nav-links a {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--fz-offwhite);
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding-bottom: 0.85rem;
}

.mobile-nav-links a:hover {
  color: var(--tb-teal);
}

/* Footer Architecture */
.fz-footer {
  background-color: #07080A;
  color: var(--fz-offwhite);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 5rem 0 3rem;
  font-size: 0.875rem;
}

.footer-brand-bio {
  color: var(--fz-gray-muted);
  font-size: 0.875rem;
  line-height: 1.6;
  max-width: 320px;
  margin-top: 1rem;
}

.footer-heading {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #FFFFFF;
  margin-bottom: 1.35rem;
  font-weight: 600;
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-links a {
  color: var(--fz-gray-muted);
  font-size: 0.875rem;
  transition: color 0.2s ease;
}

.footer-links a:hover {
  color: #FFFFFF;
  padding-left: 2px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.07);
  padding-top: 2rem;
  margin-top: 4rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  color: #6E7681;
  font-size: 0.8125rem;
}

.social-links {
  display: flex;
  gap: 1.25rem;
}

.social-links a {
  color: var(--fz-gray-muted);
  font-size: 1rem;
}
.social-links a:hover {
  color: var(--tb-teal);
}

/* Sticky Bottom Mobile Bar */
.sticky-mobile-cta {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background: rgba(11, 13, 15, 0.95);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding: 0.75rem 1rem;
  z-index: 1030;
  box-shadow: 0 -8px 24px rgba(0, 0, 0, 0.4);
}

/* Utilities */
.text-teal { color: var(--tb-teal) !important; }
.text-azure { color: var(--tb-azure) !important; }
.text-muted-dark { color: var(--fz-gray-muted) !important; }
.text-muted-light { color: var(--fz-light-text-sub) !important; }
.bg-deep-charcoal { background-color: var(--fz-charcoal-deep) !important; }
.bg-surface-charcoal { background-color: var(--fz-charcoal-surface) !important; }
.border-charcoal { border-color: var(--fz-charcoal-border) !important; }

/* Grid container styling */
.container-fz {
  max-width: var(--container-max-w);
  margin-left: auto;
  margin-right: auto;
  padding-left: clamp(1rem, 3.5vw, 2.5rem);
  padding-right: clamp(1rem, 3.5vw, 2.5rem);
}