/* ============================================================
   AJRU Website — Shared Base Styles v3.0
   Asian Jump Rope Union · Official Continental Governing Body
   Design: Navy Authority + Metallic Gold · Barlow + Inter
   Contrasts with AJRA's sporty/academy style.
   ============================================================ */

/* === CSS Custom Properties (Design Tokens v3.0) === */
:root {
  /* Brand — Navy Series */
  --ajru-navy: #080F1E;
  --ajru-navy-deep: #0F1B3A;
  --ajru-navy-medium: #1A3157;
  --ajru-navy-light: #2A4A7A;
  --ajru-navy-pale: #EBEFF6;

  /* Brand — Metallic Gold (primary accent) */
  --ajru-gold: #C4A135;
  --ajru-gold-light: #D9B84C;
  --ajru-gold-dark: #A88720;
  --ajru-gold-pale: #FCF7ED;

  /* Logo Colors — Active Design Accents (v3.1) */
  --ajru-yellow: #F6EB3F;          /* Logo swoosh — highlights on dark bg only */
  --ajru-red: #BC2C2E;             /* Logo pixel — alerts, urgency, important */
  --ajru-green: #257140;           /* Logo pixel — verified, certified, success */
  --ajru-orange: #C67C2B;          /* Logo pixel — pending, warning, progress */
  --ajru-blue: #1A6FC4;            /* Logo pixel — info, links, secondary accent */
  --ajru-red-pale: #FDF0F0;
  --ajru-green-pale: #EDF7F0;
  --ajru-orange-pale: #FDF6ED;
  --ajru-blue-pale: #EDF3FA;

  /* Neutrals */
  --ajru-white: #FFFFFF;
  --ajru-gray-50: #F9FAFB;
  --ajru-gray-100: #F1F3F6;
  --ajru-gray-200: #E5E8EC;
  --ajru-gray-300: #C5CAD3;
  --ajru-gray-400: #8A92A0;
  --ajru-gray-500: #5C6470;
  --ajru-gray-700: #2D3340;
  --ajru-gray-900: #141820;

  /* Gradients (subtle, no sporty drama) */
  --gradient-hero: linear-gradient(175deg, #0F1B3A 0%, #080F1E 100%);
  --gradient-footer: linear-gradient(180deg, #080F1E 0%, #040810 100%);
  --gradient-gold-subtle: linear-gradient(135deg, #C4A135 0%, #A88720 100%);

  /* Typography */
  --font-heading: 'Barlow', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Spacing (8px grid, tighter than v2) */
  --space-2xs: 4px;
  --space-xs: 8px;
  --space-sm: 12px;
  --space-md: 20px;
  --space-lg: 32px;
  --space-xl: 48px;
  --space-2xl: 64px;
  --space-3xl: 96px;

  /* Radius (sharper, more professional) */
  --radius-sm: 3px;
  --radius-md: 4px;
  --radius-lg: 6px;
  --radius-xl: 8px;

  /* Shadows (minimal, no drama) */
  --shadow-xs: 0 1px 2px rgba(0,0,0,0.04);
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
  --shadow-md: 0 2px 8px rgba(0,0,0,0.08);
  --shadow-lg: 0 4px 16px rgba(0,0,0,0.1);

  /* Animation */
  --duration-instant: 100ms;
  --duration-fast: 180ms;
  --duration-normal: 300ms;
  --duration-slow: 500ms;
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);

  /* Containers */
  --container-narrow: 800px;
  --container-md: 1024px;
  --container-wide: 1200px;

  /* Nav */
  --nav-height: 68px;
}

/* === Reset & Base === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
body {
  font-family: var(--font-body); font-size: 15px; line-height: 1.65;
  color: var(--ajru-gray-700); background: var(--ajru-white);
  overflow-x: hidden;
}
h1, h2, h3, h4, h5, h6 { font-family: var(--font-heading); color: var(--ajru-navy-deep); }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }

::selection { background: rgba(196,161,53,0.18); color: var(--ajru-navy-deep); }

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--ajru-gray-50); }
::-webkit-scrollbar-thumb { background: var(--ajru-gray-300); border-radius: 3px; }

/* === Navigation v3.0 (Solid, no blur, authoritative) === */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  height: var(--nav-height);
  background: var(--ajru-navy-deep);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.navbar-inner {
  max-width: var(--container-wide);
  margin: 0 auto; padding: 0 var(--space-lg);
  height: 100%;
  display: flex; align-items: center; justify-content: space-between;
}
.nav-logo {
  display: flex; align-items: center; gap: 8px;
  font-family: var(--font-heading); font-weight: 800; font-size: 20px;
  color: var(--ajru-white); letter-spacing: 0.3px;
  white-space: nowrap; flex-shrink: 0;
}
.nav-logo-img {
  height: 52px; width: auto; flex-shrink: 0;
  background: rgba(255,255,255,0.50); padding: 5px 8px;
  border-radius: var(--radius-md);
  object-fit: contain; object-position: center;
  transition: background var(--duration-fast);
}
.nav-logo-img:hover {
  background: rgba(255,255,255,0.65);
  box-shadow: 0 0 16px rgba(196,161,53,0.15);
}
.nav-links { display: flex; align-items: center; gap: 1px; }
.nav-links a {
  padding: 6px 10px; font-size: 15px; font-weight: 500;
  color: rgba(255,255,255,0.85); border-radius: var(--radius-md);
  transition: all var(--duration-fast); white-space: nowrap;
}
.nav-links a:hover { color: var(--ajru-gold-light); background: rgba(255,255,255,0.04); }
.nav-links a.active { color: var(--ajru-gold); font-weight: 600; }

/* Dropdown */
.nav-dropdown { position: relative; flex-shrink: 0; }
.nav-dropdown-trigger {
  display: flex; align-items: center; gap: 3px;
  padding: 6px 10px; font-size: 15px; font-weight: 500;
  color: rgba(255,255,255,0.85); border-radius: var(--radius-md);
  cursor: pointer; transition: all var(--duration-fast);
  background: none; border: none; font-family: var(--font-body);
  white-space: nowrap;
}
.nav-dropdown-trigger:hover { color: var(--ajru-gold-light); background: rgba(255,255,255,0.04); }
.nav-dropdown-trigger.active { color: var(--ajru-gold); }
.nav-dropdown-trigger svg { transition: transform var(--duration-fast); }
.nav-dropdown:hover .nav-dropdown-trigger svg { transform: rotate(180deg); }
.nav-dropdown-menu {
  position: absolute; top: calc(100% + 6px); left: 0;
  min-width: 200px; background: var(--ajru-white);
  border-radius: var(--radius-lg); box-shadow: var(--shadow-md);
  opacity: 0; visibility: hidden;
  transform: translateY(4px);
  transition: all var(--duration-fast) var(--ease-out-expo);
  padding: 6px; z-index: 100;
  border: 1px solid var(--ajru-gray-200);
}
.nav-dropdown:hover .nav-dropdown-menu { opacity: 1; visibility: visible; transform: translateY(0); }
.nav-dropdown-menu a {
  display: block; padding: 8px 14px; border-radius: var(--radius-sm);
  font-size: 14px; color: var(--ajru-gray-700); transition: all var(--duration-instant);
}
.nav-dropdown-menu a:hover { background: var(--ajru-gold-pale); color: var(--ajru-navy-deep); }
.nav-dropdown-menu a.active { color: var(--ajru-gold-dark); font-weight: 600; background: var(--ajru-gold-pale); }

.nav-actions { display: flex; align-items: center; gap: 10px; flex-shrink: 0; margin-left: 8px; }
.nav-hamburger {
  display: none; background: none; border: none; cursor: pointer;
  padding: 6px; color: var(--ajru-white);
}
.nav-hamburger svg { width: 20px; height: 20px; }

/* Mobile Menu */
.mobile-menu {
  display: none;
  position: fixed; top: var(--nav-height); left: 0; right: 0; bottom: 0;
  background: var(--ajru-navy-deep); z-index: 999;
  padding: var(--space-md); overflow-y: auto;
  border-top: 1px solid rgba(255,255,255,0.06);
}
.mobile-menu.open { display: block; }
.mobile-menu a, .mobile-menu .mob-drop-trigger {
  display: block; padding: 12px 0;
  font-size: 15px; font-weight: 500; color: rgba(255,255,255,0.85);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  transition: color var(--duration-fast);
}
.mobile-menu a:hover, .mobile-menu .mob-drop-trigger:hover { color: var(--ajru-gold-light); }
.mobile-menu a.active { color: var(--ajru-gold); font-weight: 600; }
.mob-drop { border-bottom: 1px solid rgba(255,255,255,0.06); }
.mob-drop-trigger {
  background: none; border: none; width: 100%; text-align: left;
  font-family: var(--font-body); display: flex; justify-content: space-between; align-items: center;
  cursor: pointer;
}
.mob-drop-children { display: none; padding: 4px 0 10px 16px; }
.mob-drop.open .mob-drop-children { display: block; }
.mob-drop-children a { font-size: 13px; padding: 8px 0; border-bottom: none; }

/* === Buttons v3.0 (flat, structured, no gradients) === */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  font-family: var(--font-heading); font-weight: 700; font-size: 14px;
  border: none; border-radius: var(--radius-md);
  cursor: pointer; text-decoration: none; white-space: nowrap;
  transition: all var(--duration-fast) var(--ease-out-expo);
}
.btn-primary {
  padding: 12px 28px;
  background: var(--ajru-gold); color: var(--ajru-navy-deep);
}
.btn-primary:hover {
  background: var(--ajru-gold-light);
  transform: translateY(-1px); box-shadow: var(--shadow-sm);
}
.btn-secondary {
  padding: 12px 28px;
  background: var(--ajru-navy-deep); color: var(--ajru-white);
}
.btn-secondary:hover {
  background: var(--ajru-navy-medium);
  transform: translateY(-1px);
}
.btn-outline {
  padding: 12px 28px; font-weight: 600;
  background: transparent; color: var(--ajru-navy-deep);
  border: 1.5px solid var(--ajru-gray-300);
}
.btn-outline:hover {
  border-color: var(--ajru-navy-deep); background: var(--ajru-navy-pale);
}
.btn-outline-gold {
  padding: 12px 28px; font-weight: 600;
  background: transparent; color: var(--ajru-gold);
  border: 1.5px solid var(--ajru-gold);
}
.btn-outline-gold:hover {
  background: var(--ajru-gold); color: var(--ajru-navy-deep);
}
.btn-sm { padding: 8px 18px; font-size: 13px; }
.btn-lg { padding: 16px 36px; font-size: 16px; }

/* === Floating AJRA button — bottom right corner === */
  position: relative; padding: calc(var(--nav-height) + 48px) 0 64px;
  background: var(--gradient-hero); overflow: hidden;
}
.page-hero-content {
  max-width: var(--container-wide); margin: 0 auto;
  padding: 0 var(--space-lg); position: relative; z-index: 2;
}
.page-hero-breadcrumb {
  display: flex; align-items: center; gap: 6px;
  font-size: 12px; color: rgba(255,255,255,0.35); margin-bottom: 16px;
}
.page-hero-breadcrumb a { color: rgba(255,255,255,0.5); transition: color var(--duration-fast); }
.page-hero-breadcrumb a:hover { color: var(--ajru-gold-light); }
.page-hero-breadcrumb span { color: rgba(255,255,255,0.2); }
.page-hero-title {
  font-family: var(--font-heading); font-weight: 800;
  font-size: clamp(32px, 4.5vw, 52px); line-height: 1.12;
  color: var(--ajru-white); margin-bottom: 14px;
}
.page-hero-subtitle {
  font-size: 16px; color: rgba(255,255,255,0.45); max-width: 560px; line-height: 1.6;
}
.page-hero-pattern {
  position: absolute; inset: 0; opacity: 0.03;
  background-image: radial-gradient(circle at 1px 1px, white 1px, transparent 0);
  background-size: 40px 40px;
}

/* === Sections v3.0 (alternating bgs, left-aligned) === */
.section { padding: var(--space-2xl) 0; }
.section-sm { padding: var(--space-xl) 0; }
.section-navy { background: var(--ajru-navy-deep); color: var(--ajru-white); }
.section-gray { background: var(--ajru-gray-50); }
.section-gold-pale { background: var(--ajru-gold-pale); }
.section-white { background: var(--ajru-white); }

.container { max-width: var(--container-wide); margin: 0 auto; padding: 0 var(--space-lg); }
.container-narrow { max-width: var(--container-narrow); margin: 0 auto; padding: 0 var(--space-lg); }

.section-header { max-width: 700px; margin: 0 0 var(--space-2xl) 0; }
.section-header.centered { margin-left: auto; margin-right: auto; text-align: center; }

.section-label {
  display: inline-block; font-family: var(--font-heading); font-weight: 700;
  font-size: 12px; text-transform: uppercase; letter-spacing: 1.5px;
  color: var(--ajru-navy-deep); margin-bottom: 10px;
}
.section-navy .section-label { color: var(--ajru-gold); }

.section-title {
  font-family: var(--font-heading); font-weight: 800;
  font-size: clamp(24px, 3vw, 34px); line-height: 1.18;
  color: var(--ajru-navy-deep); margin-bottom: 10px;
}
.section-navy .section-title { color: var(--ajru-white); }

.section-subtitle {
  font-size: 15px; color: var(--ajru-gray-500); line-height: 1.6;
}
.section-navy .section-subtitle { color: rgba(255,255,255,0.45); }

/* === Cards v3.0 (thin border, minimal shadow) === */
.card {
  background: var(--ajru-white);
  border: 1px solid var(--ajru-gray-200);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  transition: all var(--duration-normal) var(--ease-out-expo);
}
.card:hover {
  border-color: var(--ajru-navy-deep);
  box-shadow: var(--shadow-sm);
  transform: translateY(-2px);
}

/* === Grids === */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-lg); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-lg); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-lg); }

/* === Partner Links Section === */
.partner-section {
  background: var(--ajru-white);
  padding: var(--space-xl) 0;
  border-top: 1px solid var(--ajru-gray-200);
}
.partner-section .sec-overline {
  text-align: center;
  margin-bottom: var(--space-lg);
}
.partner-grid {
  display: flex;
  justify-content: center;
  align-items: flex-start;
  gap: var(--space-2xl);
  flex-wrap: wrap;
}
.partner-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  transition: transform var(--duration-fast), opacity var(--duration-fast);
  min-width: 160px;
}
.partner-card:hover {
  transform: translateY(-2px);
  opacity: 0.85;
}
.partner-logo {
  width: 120px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--ajru-gray-50);
  border-radius: var(--radius-md);
  padding: 8px;
}
.partner-logo img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}
.partner-logo-text {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 22px;
  color: var(--ajru-navy-deep);
  letter-spacing: 2px;
}
.partner-name {
  font-size: 12px;
  color: var(--ajru-gray-500);
  text-align: center;
  line-height: 1.4;
  max-width: 160px;
  font-weight: 500;
}
.partner-badge {
  display: inline-block;
  padding: 2px 10px;
  border-radius: var(--radius-sm);
  background: var(--ajru-orange-pale);
  color: var(--ajru-orange);
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-family: var(--font-heading);
}

@media (max-width: 767px) {
  .partner-grid { gap: var(--space-lg); }
  .partner-card { min-width: 130px; }
  .partner-logo { width: 100px; height: 50px; }
}

/* === Footer v3.0 (structured, clean) === */
.footer {
  background: var(--ajru-navy); color: rgba(255,255,255,0.45);
  padding: var(--space-2xl) 0 var(--space-lg);
}
.footer-grid {
  max-width: var(--container-wide); margin: 0 auto;
  padding: 0 var(--space-lg);
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-xl); margin-bottom: var(--space-xl);
}
.footer-brand p {
  margin-top: 10px; font-size: 13px; line-height: 1.6;
  color: rgba(255,255,255,0.3);
}
.footer-heading {
  font-family: var(--font-heading); font-weight: 700; font-size: 12px;
  color: var(--ajru-gold); text-transform: uppercase; letter-spacing: 1px;
  margin-bottom: 14px;
}
.footer-links { display: flex; flex-direction: column; gap: 6px; }
.footer-links a { font-size: 13px; color: rgba(255,255,255,0.45); transition: color var(--duration-fast); }
.footer-links a:hover { color: var(--ajru-gold-light); }

.footer-social { display: flex; gap: 8px; margin-top: 14px; }
.footer-social a {
  width: 36px; height: 36px; border-radius: var(--radius-md);
  border: 1px solid rgba(255,255,255,0.1);
  display: flex; align-items: center; justify-content: center;
  color: rgba(255,255,255,0.5); transition: all var(--duration-fast);
}
.footer-social a:hover { border-color: var(--ajru-gold); color: var(--ajru-gold); background: transparent; }

.footer-bottom {
  max-width: var(--container-wide); margin: 0 auto;
  padding: var(--space-md) var(--space-lg) 0;
  border-top: 1px solid rgba(255,255,255,0.06);
  display: flex; justify-content: space-between; align-items: center;
  font-size: 12px; color: rgba(255,255,255,0.25);
}

/* === Stat Display v3.0 === */
.stat-value {
  font-family: var(--font-heading); font-weight: 900;
  font-size: clamp(32px, 4vw, 48px); line-height: 1;
  color: var(--ajru-gold);
}
.stat-label { font-size: 13px; color: var(--ajru-gray-500); margin-top: 4px; font-weight: 500; }

/* === Badge / Tag v3.0 === */
.badge {
  display: inline-flex; align-items: center; gap: 3px;
  padding: 2px 10px; border-radius: var(--radius-sm);
  font-size: 11px; font-weight: 600; text-transform: uppercase;
  letter-spacing: 0.5px; font-family: var(--font-heading);
}
.badge-gold { background: var(--ajru-gold-pale); color: var(--ajru-gold-dark); }
.badge-navy { background: var(--ajru-navy-pale); color: var(--ajru-navy-deep); }
.badge-yellow { background: rgba(246,235,63,0.12); color: var(--ajru-gold-dark); }
.badge-green { background: var(--ajru-green-pale); color: var(--ajru-green); }
.badge-red { background: var(--ajru-red-pale); color: var(--ajru-red); }
.badge-orange { background: var(--ajru-orange-pale); color: var(--ajru-orange); }
.badge-blue { background: var(--ajru-blue-pale); color: var(--ajru-blue); }

/* === Decorative Elements v3.0 (minimal) === */
.rule { height: 1px; background: var(--ajru-gray-200); border: none; margin: var(--space-xl) 0; }
.rule-navy { background: var(--ajru-navy-pale); }

/* === Animations === */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.animate-fade-up { animation: fadeUp 0.5s var(--ease-out-expo) forwards; opacity: 0; }
.delay-1 { animation-delay: 0.1s; } .delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; } .delay-4 { animation-delay: 0.4s; }
.delay-5 { animation-delay: 0.5s; }

/* === Utility === */
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }
.text-gold { color: var(--ajru-gold); }
.text-navy { color: var(--ajru-navy-deep); }
.text-center { text-align: center; }
.font-heading { font-family: var(--font-heading); }
.font-mono { font-family: var(--font-mono); }

/* === Responsive === */
@media (max-width: 1023px) {
  .nav-links { display: none; }
  .nav-hamburger { display: block; }
  .nav-actions .btn { display: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: var(--space-lg); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .page-hero { padding: calc(var(--nav-height) + 32px) 0 48px; }
}

@media (max-width: 767px) {
  :root { --space-2xl: 48px; --space-xl: 36px; }
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: 1fr; }
  .section { padding: var(--space-xl) 0; }
  .page-hero-title { font-size: 28px; }
  .page-hero-subtitle { font-size: 15px; }
  .footer-grid { grid-template-columns: 1fr; gap: var(--space-md); }
  .footer-bottom { flex-direction: column; gap: 6px; text-align: center; }
  .container, .container-narrow { padding: 0 var(--space-md); }
}