/* JETData.AI website — shared stylesheet (revamp 2026-11)
   Brand tokens per jet-brand 1.8.0. One file for every page. */

:root {
  /* Brand color */
  --color-primary:        #0FB0BC;
  --color-primary-dark:   #0D949E;
  --color-primary-light:  #E6F8FA;
  --color-primary-bright: #5DE5ED;
  --color-secondary:      #194E95;
  --color-secondary-dark: #122D5F;
  --color-secondary-light:#EBF0F7;
  --color-primary-rgb:    15, 176, 188;
  --color-danger-rgb:     231, 76, 60;

  /* Neutrals */
  --color-bg:          #FFFFFF;
  --color-surface:     #F7F8FA;
  --color-border:      #E2E5EB;
  --color-text:        #1A1D26;
  --color-text-muted:  #4A4F5C;
  --color-placeholder: #6E7380;
  --color-white:       #FFFFFF;

  /* Semantic */
  --color-success: #27AE60;
  --color-warning: #F39C12;
  --color-danger:  #E74C3C;

  /* Status chips */
  --chip-neutral-bg: #EEF1F5;  --chip-neutral-fg: #4A5568;
  --chip-info-bg:    #E4F6F8;  --chip-info-fg:    #0D6E77;
  --chip-good-bg:    #E3F5EC;  --chip-good-fg:    #1B7A54;
  --chip-warn-bg:    #FEF3E2;  --chip-warn-fg:    #96590B;
  --chip-bad-bg:     #FDECEA;  --chip-bad-fg:     #B03A2B;

  /* Hero gradient */
  --hero-1: #0C1B3A;
  --hero-2: #122A56;
  --hero-3: #194E95;
  --hero-4: #0D7A83;

  /* Fonts */
  --font-heading: 'Space Grotesk', 'DM Sans', system-ui, -apple-system, sans-serif;
  --font-body:    'DM Sans', system-ui, -apple-system, sans-serif;
  --font-article: 'Merriweather', Georgia, serif;
  --font-mono:    ui-monospace, 'SF Mono', Menlo, Consolas, monospace;

  /* Type scale (17px base) */
  --fs-xs:   0.72rem;
  --fs-sm:   0.82rem;
  --fs-base: 0.9rem;
  --fs-md:   1rem;
  --fs-lg:   1.05rem;
  --fs-xl:   1.25rem;
  --fs-2xl:  1.6rem;
  --fs-3xl:  2.4rem;
  --fs-hero: 3.4rem;

  --fw-regular:  400;
  --fw-medium:   500;
  --fw-semibold: 600;
  --fw-bold:     700;

  --lh-tight:   1.15;
  --lh-snug:    1.25;
  --lh-base:    1.6;
  --lh-relaxed: 1.7;

  --tracking-tight:   -0.02em;
  --tracking-wide:    0.5px;
  --tracking-eyebrow: 1.5px;

  /* Shape */
  --radius-sm:   6px;
  --radius:      8px;
  --radius-md:   12px;
  --radius-lg:   16px;
  --radius-xl:   24px;
  --radius-pill: 999px;

  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
  --shadow-card-hover: 0 6px 20px rgba(0,0,0,0.08);
  --shadow-glow-teal: 0 0 20px rgba(var(--color-primary-rgb), 0.25);

  /* Spacing */
  --space-1:  4px;  --space-2:  8px;  --space-3: 12px; --space-4: 16px;
  --space-5:  20px; --space-6:  24px; --space-8: 32px; --space-10: 40px;
  --space-12: 48px; --space-16: 64px; --space-20: 80px; --space-24: 96px;

  /* Motion */
  --ease-out-soft: cubic-bezier(0.16, 1, 0.3, 1);
  --dur-fast: 0.15s;
  --dur-base: 0.3s;
  --dur-slow: 0.7s;

  /* Layout */
  --container-max: 1200px;
  --nav-height: 72px;
  --gutter: 20px;
  --tap: 44px;
}

*, *::before, *::after { box-sizing: border-box; }

html { font-size: 17px; scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: var(--lh-base);
  -webkit-font-smoothing: antialiased;
  font-feature-settings: "ss01", "cv01";
  overflow-x: hidden;
}

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

.wrap {
  max-width: var(--container-max);
  margin: 0 auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

/* ---------- Typography ---------- */

h1, h2, h3, h4 { font-family: var(--font-heading); margin: 0; }

.t-hero {
  font-size: clamp(2.2rem, 5vw, var(--fs-hero));
  font-weight: var(--fw-bold);
  line-height: var(--lh-tight);
  letter-spacing: var(--tracking-tight);
}

h2, .t-section-title {
  font-size: clamp(var(--fs-2xl), 3vw, var(--fs-3xl));
  font-weight: var(--fw-bold);
  line-height: 1.2;
  letter-spacing: var(--tracking-tight);
}

.t-section-label {
  font-size: 0.75rem;
  font-weight: var(--fw-bold);
  letter-spacing: var(--tracking-eyebrow);
  text-transform: uppercase;
  color: var(--color-primary);
  display: block;
  margin-bottom: var(--space-3);
}

h3, .t-card-title {
  font-size: var(--fs-xl);
  font-weight: var(--fw-bold);
  line-height: var(--lh-snug);
}

p { margin: 0; font-size: var(--fs-md); line-height: var(--lh-relaxed); }

.t-subtitle {
  font-size: var(--fs-lg);
  color: var(--color-text-muted);
  line-height: var(--lh-relaxed);
  max-width: 620px;
}

.t-body-muted { font-size: var(--fs-base); color: var(--color-text-muted); line-height: 1.65; }

a { color: var(--color-primary-dark); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---------- Icons ---------- */

.material-symbols-rounded {
  font-family: 'Material Symbols Rounded';
  font-weight: normal; font-style: normal;
  font-size: 20px; line-height: 1; vertical-align: middle;
  color: inherit; flex: none;
  font-variation-settings: 'FILL' 1, 'wght' 500, 'GRAD' 0, 'opsz' 20;
}

/* ---------- Buttons ---------- */

.btn {
  background: var(--color-primary);
  color: var(--color-white);
  border: none;
  height: var(--tap);
  padding: 0 var(--space-5);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: var(--fs-base);
  font-weight: var(--fw-semibold);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  text-decoration: none;
  transition: background var(--dur-fast), box-shadow var(--dur-fast), transform var(--dur-fast);
}
.btn:hover { background: var(--color-primary-dark); text-decoration: none; }
.btn:active { transform: scale(0.97); }
.btn:focus-visible { outline: none; box-shadow: 0 0 0 3px rgba(var(--color-primary-rgb), 0.45); }

.btn-secondary {
  background: transparent;
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
}
.btn-secondary:hover { background: transparent; border-color: var(--color-primary); color: var(--color-primary); }

/* On the dark hero */
.btn-on-dark-secondary {
  background: rgba(255,255,255,0.08);
  color: var(--color-white);
  border: 1px solid rgba(255,255,255,0.25);
}
.btn-on-dark-secondary:hover { background: rgba(255,255,255,0.14); border-color: rgba(255,255,255,0.5); }

.btn-lg { height: 52px; padding: 0 var(--space-8); font-size: var(--fs-md); }

/* ---------- Navbar ---------- */

.navbar {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,0.86);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--color-border);
}
.navbar-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--gutter);
  height: var(--nav-height);
  display: flex; align-items: center; gap: var(--space-8);
}
.navbar .logo { display: flex; align-items: center; flex: none; }
.navbar .logo img { height: 36px; width: auto; }
.nav-links {
  display: flex; align-items: center; gap: var(--space-6);
  list-style: none; margin: 0 0 0 auto; padding: 0;
}
.nav-links a {
  color: var(--color-text-muted);
  font-size: var(--fs-base);
  font-weight: var(--fw-medium);
  text-decoration: none;
  padding: var(--space-2) 0;
  transition: color var(--dur-fast);
}
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--color-primary-dark); }
.nav-links a.nav-cta {
  background: var(--color-primary);
  color: var(--color-white);
  padding: 10px var(--space-5);
  border-radius: var(--radius-sm);
  font-weight: var(--fw-semibold);
}
.nav-links a.nav-cta:hover { background: var(--color-primary-dark); }

.nav-toggle {
  display: none;
  margin-left: auto;
  background: none; border: none; cursor: pointer;
  width: var(--tap); height: var(--tap);
  color: var(--color-text);
  align-items: center; justify-content: center;
}

@media (max-width: 919px) {
  .nav-links {
    display: none;
    position: fixed;
    top: var(--nav-height); left: 0; right: 0;
    background: var(--color-white);
    border-bottom: 1px solid var(--color-border);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: var(--space-2) var(--gutter) var(--space-4);
    box-shadow: var(--shadow-md);
  }
  .nav-links.open { display: flex; }
  .nav-links li a { display: block; padding: var(--space-3) 0; }
  .nav-links a.nav-cta { text-align: center; margin-top: var(--space-2); }
  .nav-toggle { display: inline-flex; }
}

/* ---------- Sections ---------- */

.section { padding: var(--space-24) 0; }
.section-surface { background: var(--color-surface); }
.section-head { max-width: 680px; margin-bottom: var(--space-12); }
.section-head .t-subtitle { margin-top: var(--space-4); }

/* Dark band (hero gradient) */
.band-dark {
  background: linear-gradient(155deg, var(--hero-1) 0%, var(--hero-2) 30%, var(--hero-3) 60%, var(--hero-4) 100%);
  color: var(--color-white);
}
.band-dark h2 { color: var(--color-white); }
.band-dark .t-subtitle { color: rgba(255,255,255,0.78); }
.band-dark .t-section-label { color: var(--color-primary-bright); }

/* ---------- Cards ---------- */

.card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--dur-base), transform var(--dur-base);
}
.card:hover { box-shadow: var(--shadow-card-hover); }

.icon-wrap {
  width: 52px; height: 52px;
  background: var(--color-primary-light);
  border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: var(--space-4);
}
.icon-wrap .material-symbols-rounded { font-size: 26px; color: var(--color-primary-dark); font-variation-settings: 'FILL' 1, 'wght' 500, 'GRAD' 0, 'opsz' 24; }

.glass-card {
  background: rgba(255,255,255,0.08);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
}

/* Grids */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-6); }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-6); }
@media (max-width: 919px) { .grid-3 { grid-template-columns: 1fr; } .grid-2 { grid-template-columns: 1fr; } }

/* ---------- Footer ---------- */

.footer {
  background: var(--hero-1);
  color: rgba(255,255,255,0.72);
  padding: var(--space-16) 0 var(--space-8);
  font-size: var(--fs-base);
}
.footer a { color: rgba(255,255,255,0.72); text-decoration: none; }
.footer a:hover { color: var(--color-primary-bright); }
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-10);
  padding-bottom: var(--space-10);
  border-bottom: 1px solid rgba(255,255,255,0.12);
}
.footer h4 {
  color: var(--color-white);
  font-size: 0.85rem;
  font-weight: var(--fw-bold);
  letter-spacing: var(--tracking-wide);
  margin-bottom: var(--space-4);
}
.footer ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: var(--space-2); }
.footer-bottom {
  display: flex; align-items: center; justify-content: space-between;
  gap: var(--space-4); flex-wrap: wrap;
  padding-top: var(--space-6);
  font-size: var(--fs-sm);
  color: rgba(255,255,255,0.5);
}
@media (max-width: 919px) { .footer-grid { grid-template-columns: 1fr 1fr; } }

/* ---------- Scroll reveal ---------- */

.reveal { opacity: 0; transform: translateY(24px); transition: opacity var(--dur-slow) var(--ease-out-soft), transform var(--dur-slow) var(--ease-out-soft); }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}