/* ============================================
   VTC AIRLINES — Stylesheet
   Inspired by Apple / Linear aesthetic
   ============================================ */

:root {
  /* Colors */
  --color-bg: #ffffff;
  --color-bg-secondary: #f5f5f7;
  --color-bg-success: #e8f5e9;
  --color-bg-info: #e3f2fd;
  --color-text-primary: #111111;
  --color-text-secondary: #515154;
  --color-text-tertiary: #86868b;
  --color-text-success: #1b5e20;
  --color-text-info: #0d47a1;
  --color-border: #d2d2d7;
  --color-border-light: #e8e8ed;
  --color-border-info: #0071e3;

  /* Typography */
  --font-sans: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Helvetica Neue", Helvetica, Arial, sans-serif;

  /* Radii */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  font-family: var(--font-sans);
  color: var(--color-text-primary);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.5;
}

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

/* ----------- NAV ----------- */
.vtc-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 32px;
  border-bottom: 1px solid var(--color-border-light);
  position: sticky;
  top: 0;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  z-index: 100;
}
.vtc-nav-left { display: flex; align-items: center; gap: 32px; }
.vtc-logo { font-size: 15px; font-weight: 600; letter-spacing: 0.18em; }
.vtc-nav-links { display: flex; gap: 28px; font-size: 13px; color: var(--color-text-secondary); }
.vtc-nav-links a { cursor: pointer; }
.vtc-nav-links a:hover { color: var(--color-text-primary); text-decoration: none; }
.vtc-nav-links a.active { color: var(--color-text-primary); }
.vtc-nav-right { display: flex; align-items: center; gap: 16px; }
.vtc-lang-pill { display: flex; gap: 2px; padding: 3px; background: var(--color-bg-secondary); border-radius: 999px; }
.vtc-lang-btn { font-size: 11px; padding: 4px 10px; border-radius: 999px; cursor: pointer; color: var(--color-text-secondary); border: none; background: transparent; letter-spacing: 0.05em; font-weight: 500; }
.vtc-lang-btn.active { background: var(--color-text-primary); color: var(--color-bg); }
.vtc-nav-cta { font-size: 13px; padding: 8px 16px; border: 1px solid var(--color-border); border-radius: var(--radius-md); cursor: pointer; }
.vtc-nav-cta:hover { background: var(--color-bg-secondary); text-decoration: none; }

/* ----------- BREADCRUMB ----------- */
.vtc-breadcrumb { padding: 16px 32px; font-size: 12px; color: var(--color-text-tertiary); letter-spacing: 0.05em; border-bottom: 1px solid var(--color-border-light); }

/* ----------- HERO (HOMEPAGE) ----------- */
.vtc-hero { padding: 80px 32px 64px; text-align: center; max-width: 1280px; margin: 0 auto; }
.vtc-eyebrow { font-size: 12px; letter-spacing: 0.2em; color: var(--color-text-tertiary); margin-bottom: 20px; }
.vtc-h1 { font-size: 56px; font-weight: 600; line-height: 1.05; letter-spacing: -0.025em; margin: 0 0 20px; }
.vtc-sub { font-size: 18px; color: var(--color-text-secondary); max-width: 540px; margin: 0 auto 32px; line-height: 1.5; }

/* ----------- TABS ----------- */
.vtc-tabs { display: flex; gap: 4px; padding: 4px; background: var(--color-bg-secondary); border-radius: var(--radius-lg); width: fit-content; margin: 0 auto 16px; flex-wrap: wrap; justify-content: center; }
.vtc-tab { font-size: 13px; padding: 8px 18px; border-radius: var(--radius-md); cursor: pointer; color: var(--color-text-secondary); border: none; background: transparent; font-family: inherit; }
.vtc-tab.active { background: var(--color-bg); color: var(--color-text-primary); border: 1px solid var(--color-border-light); box-shadow: var(--shadow-sm); }
.vtc-tab:hover { color: var(--color-text-primary); }

/* ----------- FORMS ----------- */
.vtc-form { max-width: 560px; margin: 0 auto; background: var(--color-bg); border: 1px solid var(--color-border-light); border-radius: var(--radius-lg); padding: 16px; display: grid; grid-template-columns: 1fr 1fr; gap: 8px; box-shadow: var(--shadow-sm); }
.vtc-form-card { background: var(--color-bg-secondary); border-radius: var(--radius-lg); padding: 24px; }
.vtc-form-title { font-size: 13px; font-weight: 600; margin: 0 0 4px; letter-spacing: 0.05em; }
.vtc-form-help { font-size: 11px; color: var(--color-text-tertiary); margin: 0 0 14px; }
.vtc-form-card .vtc-form { background: var(--color-bg); box-shadow: none; padding: 0; border: none; }
.vtc-input { font-size: 13px; padding: 11px 13px; border: 1px solid var(--color-border); border-radius: var(--radius-md); background: var(--color-bg); color: var(--color-text-primary); width: 100%; font-family: inherit; }
.vtc-input:focus { outline: none; border-color: var(--color-text-primary); }
.vtc-input.full { grid-column: 1 / -1; }
.vtc-submit { grid-column: 1 / -1; padding: 13px; background: var(--color-text-primary); color: var(--color-bg); border: none; border-radius: var(--radius-md); font-size: 13px; font-weight: 600; cursor: pointer; font-family: inherit; }
.vtc-submit:hover { background: #000; }

/* ----------- SECTIONS ----------- */
.vtc-section { padding: 80px 32px; border-top: 1px solid var(--color-border-light); max-width: 1280px; margin: 0 auto; }
.vtc-section-header { display: flex; justify-content: space-between; align-items: flex-end; margin-bottom: 40px; gap: 32px; flex-wrap: wrap; }
.vtc-section-header-left { max-width: 540px; }
.vtc-h2 { font-size: 36px; font-weight: 600; letter-spacing: -0.02em; margin: 0 0 12px; line-height: 1.15; }
.vtc-section-sub { font-size: 16px; color: var(--color-text-secondary); margin: 0 0 40px; max-width: 580px; line-height: 1.5; }

/* ----------- PAGE HERO (sub-pages) ----------- */
.vtc-page-hero { padding: 64px 32px 56px; display: grid; grid-template-columns: 1fr 400px; gap: 56px; align-items: start; max-width: 1280px; margin: 0 auto; }
.vtc-page-hero .vtc-h1 { font-size: 44px; }
.vtc-hero-sub { font-size: 17px; color: var(--color-text-secondary); line-height: 1.55; margin: 0 0 28px; }
.vtc-stats { display: flex; gap: 36px; padding-top: 24px; border-top: 1px solid var(--color-border-light); flex-wrap: wrap; }
.vtc-stat-num { font-size: 24px; font-weight: 600; margin: 0 0 2px; letter-spacing: -0.01em; }
.vtc-stat-label { font-size: 11px; color: var(--color-text-tertiary); letter-spacing: 0.1em; margin: 0; font-weight: 500; }

/* ----------- SERVICES GRID ----------- */
.vtc-services { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.vtc-service { padding: 28px; border: 1px solid var(--color-border-light); border-radius: var(--radius-lg); background: var(--color-bg); transition: box-shadow 0.2s; }
.vtc-service:hover { box-shadow: var(--shadow-md); }
.vtc-service-icon { font-size: 28px; margin-bottom: 18px; display: block; }
.vtc-service-title { font-size: 17px; font-weight: 600; margin: 0 0 8px; }
.vtc-service-desc { font-size: 14px; color: var(--color-text-secondary); line-height: 1.55; margin: 0; }

/* ----------- EVENTS GRID ----------- */
.vtc-events { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.vtc-event { padding: 24px; background: var(--color-bg-secondary); border-radius: var(--radius-lg); display: flex; gap: 16px; align-items: flex-start; }
.vtc-event-icon { font-size: 28px; flex-shrink: 0; margin-top: 2px; }
.vtc-event-title { font-size: 15px; font-weight: 600; margin: 0 0 4px; }
.vtc-event-desc { font-size: 13px; color: var(--color-text-secondary); line-height: 1.55; margin: 0; }
.vtc-events-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.vtc-event-card { padding: 24px; background: var(--color-bg-secondary); border-radius: var(--radius-lg); }
.vtc-event-card .vtc-event-icon { margin-bottom: 14px; }

/* ----------- FEATURES ----------- */
.vtc-features { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; }
.vtc-feature-num { font-size: 12px; letter-spacing: 0.15em; color: var(--color-text-tertiary); margin-bottom: 12px; font-weight: 500; }
.vtc-feature-title { font-size: 16px; font-weight: 600; margin: 0 0 8px; }
.vtc-feature-desc { font-size: 14px; color: var(--color-text-secondary); line-height: 1.55; margin: 0; }

/* ----------- FLEET ----------- */
.vtc-fleet { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.vtc-car { padding: 28px; background: var(--color-bg-secondary); border-radius: var(--radius-lg); text-align: center; }
.vtc-car-icon { font-size: 36px; margin-bottom: 12px; }
.vtc-car-name { font-size: 15px; font-weight: 600; margin: 0 0 2px; }
.vtc-car-cap { font-size: 12px; color: var(--color-text-tertiary); margin: 0; }

/* ----------- INCLUDES GRID ----------- */
.vtc-includes { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.vtc-include { display: flex; gap: 14px; padding: 20px; background: var(--color-bg-secondary); border-radius: var(--radius-md); align-items: flex-start; }
.vtc-include-icon { font-size: 22px; flex-shrink: 0; margin-top: 1px; }
.vtc-include-title { font-size: 14px; font-weight: 600; margin: 0 0 4px; }
.vtc-include-desc { font-size: 13px; color: var(--color-text-secondary); line-height: 1.5; margin: 0; }

/* ----------- STEPS / PROCESS ----------- */
.vtc-steps, .vtc-process { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; }
.vtc-step-num, .vtc-process-num { font-size: 11px; letter-spacing: 0.15em; color: var(--color-text-tertiary); margin-bottom: 12px; font-weight: 500; }
.vtc-step-title, .vtc-process-title { font-size: 15px; font-weight: 600; margin: 0 0 6px; }
.vtc-step-desc, .vtc-process-desc { font-size: 13px; color: var(--color-text-secondary); line-height: 1.55; margin: 0; }

/* ----------- AIRPORTS LIST ----------- */
.vtc-airports { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.vtc-airport { padding: 20px; background: var(--color-bg-secondary); border-radius: var(--radius-md); display: flex; justify-content: space-between; align-items: center; }
.vtc-airport-name { font-size: 14px; font-weight: 600; margin: 0; }
.vtc-airport-code { font-size: 11px; color: var(--color-text-tertiary); letter-spacing: 0.1em; margin: 2px 0 0; }
.vtc-airport-time { font-size: 13px; color: var(--color-text-secondary); }

/* ----------- PRICING ----------- */
.vtc-pricing { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.vtc-price-card { padding: 28px; background: var(--color-bg); border: 1px solid var(--color-border-light); border-radius: var(--radius-lg); }
.vtc-price-card.featured { border: 2px solid var(--color-border-info); }
.vtc-price-name { font-size: 14px; font-weight: 600; margin: 0 0 14px; }
.vtc-price-amount { font-size: 28px; font-weight: 600; margin: 0 0 4px; letter-spacing: -0.01em; }
.vtc-price-unit { font-size: 13px; color: var(--color-text-tertiary); margin: 0 0 18px; }
.vtc-price-feat { font-size: 13px; color: var(--color-text-secondary); margin: 7px 0; display: flex; align-items: center; gap: 8px; }

/* ----------- BENEFITS ----------- */
.vtc-benefits { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.vtc-benefit { padding: 24px; background: var(--color-bg-secondary); border-radius: var(--radius-lg); display: flex; gap: 16px; align-items: flex-start; }
.vtc-benefit-icon { font-size: 26px; flex-shrink: 0; margin-top: 2px; }
.vtc-benefit-title { font-size: 15px; font-weight: 600; margin: 0 0 6px; }
.vtc-benefit-desc { font-size: 13px; color: var(--color-text-secondary); line-height: 1.55; margin: 0; }

/* ----------- BILLING ----------- */
.vtc-billing { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.vtc-billing-card { padding: 24px; background: var(--color-bg); border: 1px solid var(--color-border-light); border-radius: var(--radius-lg); }
.vtc-billing-icon { font-size: 24px; margin-bottom: 14px; }
.vtc-billing-title { font-size: 14px; font-weight: 600; margin: 0 0 6px; }
.vtc-billing-desc { font-size: 13px; color: var(--color-text-secondary); line-height: 1.55; margin: 0; }

/* ----------- AMENITIES (Onboard) ----------- */
.vtc-amenities { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.vtc-amenity { padding: 24px; background: var(--color-bg-secondary); border-radius: var(--radius-lg); position: relative; }
.vtc-amenity-included { position: absolute; top: 16px; right: 16px; font-size: 9px; letter-spacing: 0.1em; padding: 4px 9px; border-radius: 999px; background: var(--color-bg-success); color: var(--color-text-success); font-weight: 600; }
.vtc-amenity-option { position: absolute; top: 16px; right: 16px; font-size: 9px; letter-spacing: 0.1em; padding: 4px 9px; border-radius: 999px; background: var(--color-bg); color: var(--color-text-tertiary); border: 1px solid var(--color-border-light); font-weight: 600; }
.vtc-amenity-icon { font-size: 28px; margin-bottom: 18px; display: block; }
.vtc-amenity-title { font-size: 15px; font-weight: 600; margin: 0 0 4px; }
.vtc-amenity-desc { font-size: 13px; color: var(--color-text-secondary); line-height: 1.55; margin: 0; }

/* ----------- CLASSES (cabin tiers) ----------- */
.vtc-classes-section { background: var(--color-bg-secondary); border-top: 1px solid var(--color-border-light); padding: 80px 32px; }
.vtc-classes-section-inner { max-width: 1280px; margin: 0 auto; }
.vtc-classes { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 36px; }
.vtc-class-card { padding: 28px; background: var(--color-bg); border-radius: var(--radius-lg); border: 1px solid var(--color-border-light); }
.vtc-class-card.featured { border: 2px solid var(--color-border-info); }
.vtc-class-badge { font-size: 10px; letter-spacing: 0.15em; padding: 5px 11px; border-radius: 999px; background: var(--color-bg-info); color: var(--color-text-info); display: inline-block; margin-bottom: 14px; font-weight: 600; }
.vtc-class-name { font-size: 20px; font-weight: 600; margin: 0 0 4px; letter-spacing: -0.01em; }
.vtc-class-tagline { font-size: 12px; color: var(--color-text-tertiary); margin: 0 0 20px; letter-spacing: 0.05em; font-weight: 500; }
.vtc-class-feat { font-size: 14px; color: var(--color-text-secondary); margin: 9px 0; display: flex; align-items: flex-start; gap: 9px; line-height: 1.5; }
.vtc-class-feat .check { color: var(--color-text-primary); flex-shrink: 0; margin-top: 2px; }
.vtc-class-divider { height: 1px; background: var(--color-border-light); margin: 20px 0; }
.vtc-class-price { font-size: 13px; color: var(--color-text-tertiary); margin: 0; }
.vtc-class-cta { width: 100%; padding: 11px; background: transparent; color: var(--color-text-primary); border: 1px solid var(--color-border); border-radius: var(--radius-md); font-size: 13px; font-weight: 600; cursor: pointer; margin-top: 14px; font-family: inherit; }
.vtc-class-cta:hover { background: var(--color-bg-secondary); }
.vtc-class-card.featured .vtc-class-cta { background: var(--color-text-primary); color: var(--color-bg); border: none; }
.vtc-class-card.featured .vtc-class-cta:hover { background: #000; }

/* ----------- CTA BAND ----------- */
.vtc-cta-band { text-align: center; padding: 72px 32px; background: var(--color-bg-secondary); border-radius: var(--radius-lg); margin: 0 32px 32px; max-width: 1216px; margin-left: auto; margin-right: auto; }
.vtc-cta-band .vtc-submit { display: inline-block; width: auto; padding: 13px 32px; margin-top: 20px; }

/* ----------- FOOTER ----------- */
.vtc-footer { padding: 40px 32px; border-top: 1px solid var(--color-border-light); display: flex; justify-content: space-between; font-size: 13px; color: var(--color-text-tertiary); flex-wrap: wrap; gap: 16px; }

/* ----------- ICON ALIGNMENT FOR FLEX (event blocks) ----------- */
.vtc-event > div, .vtc-benefit > div { flex: 1; }

/* ----------- ACCESSIBILITY ----------- */
.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; }

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
  .vtc-page-hero { grid-template-columns: 1fr; gap: 32px; }
  .vtc-services, .vtc-fleet, .vtc-billing, .vtc-pricing { grid-template-columns: repeat(2, 1fr); }
  .vtc-amenities { grid-template-columns: repeat(3, 1fr); }
  .vtc-features, .vtc-steps, .vtc-process { grid-template-columns: repeat(2, 1fr); }
  .vtc-events-grid { grid-template-columns: repeat(2, 1fr); }
  .vtc-classes { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .vtc-nav { padding: 14px 20px; flex-wrap: wrap; gap: 12px; }
  .vtc-nav-left { gap: 20px; }
  .vtc-nav-links { display: none; }
  .vtc-hero { padding: 56px 20px 48px; }
  .vtc-h1 { font-size: 36px; }
  .vtc-page-hero .vtc-h1 { font-size: 32px; }
  .vtc-h2 { font-size: 26px; }
  .vtc-sub { font-size: 16px; }
  .vtc-section, .vtc-page-hero, .vtc-classes-section { padding-left: 20px; padding-right: 20px; }
  .vtc-form { grid-template-columns: 1fr; }
  .vtc-services, .vtc-fleet, .vtc-events, .vtc-events-grid, .vtc-billing, .vtc-pricing, .vtc-includes, .vtc-airports, .vtc-benefits, .vtc-features, .vtc-steps, .vtc-process { grid-template-columns: 1fr; }
  .vtc-amenities { grid-template-columns: repeat(2, 1fr); }
  .vtc-tabs { width: 100%; overflow-x: auto; flex-wrap: nowrap; }
  .vtc-cta-band { margin: 0 20px 20px; padding: 56px 20px; }
  .vtc-stats { gap: 20px; }
}