/* =============================================
   AMBIENT FINANCE — Global Styles
   ============================================= */

@import url('https://fonts.googleapis.com/css2?family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;0,9..40,700&family=Fraunces:ital,opsz,wght@0,9..144,300;0,9..144,400;0,9..144,500;0,9..144,600;0,9..144,700;1,9..144,400&display=swap');

:root {
  /* Colour Palette */
  --af-green-900: #0d3d33;
  --af-green-800: #145247;
  --af-green-700: #1a6b5a;
  --af-green-600: #22876f;
  --af-green-500: #2da88a;
  --af-green-400: #4ec4a6;
  --af-green-300: #7dd4c0;
  --af-green-200: #b0e5d8;
  --af-green-100: #daf3ed;
  --af-green-50:  #f0faf7;

  --af-sand-900: #3d3529;
  --af-sand-800: #5c4f3d;
  --af-sand-700: #7a6a54;
  --af-sand-600: #96856d;
  --af-sand-500: #b0a18b;
  --af-sand-400: #c7bbaa;
  --af-sand-300: #ddd4c7;
  --af-sand-200: #ede8e0;
  --af-sand-100: #f5f2ed;
  --af-sand-50:  #faf9f6;

  --af-slate-900: #1a1d23;
  --af-slate-800: #2c3039;
  --af-slate-700: #3f4451;
  --af-slate-600: #555b6a;
  --af-slate-500: #6e7585;
  --af-slate-400: #8b919e;
  --af-slate-300: #a9adb7;
  --af-slate-200: #c8cad1;
  --af-slate-100: #e4e5e9;
  --af-slate-50:  #f3f3f5;

  --af-red: #d44040;
  --af-amber: #d49a40;
  --af-blue: #4078d4;

  --af-white: #ffffff;
  --af-bg: var(--af-sand-50);
  --af-surface: var(--af-white);

  /* Typography */
  --af-font-display: 'Fraunces', Georgia, serif;
  --af-font-body: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Spacing */
  --af-container: 1200px;
  --af-header-height: 72px;

  /* Shadows */
  --af-shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --af-shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --af-shadow-lg: 0 8px 30px rgba(0,0,0,0.1);
  --af-shadow-xl: 0 16px 48px rgba(0,0,0,0.12);

  /* Radius */
  --af-radius-sm: 6px;
  --af-radius-md: 10px;
  --af-radius-lg: 16px;
  --af-radius-xl: 24px;

  /* Transitions */
  --af-transition: 0.2s ease;
}

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

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

body {
  font-family: var(--af-font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--af-slate-800);
  background: var(--af-bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main { flex: 1; }

img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }

/* ---- Utility ---- */
.af-container {
  max-width: var(--af-container);
  margin: 0 auto;
  padding: 0 24px;
}

/* =============================================
   HEADER
   ============================================= */
.af-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--af-sand-200);
}

.af-header-inner {
  max-width: var(--af-container);
  margin: 0 auto;
  padding: 0 24px;
  height: var(--af-header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

/* Logo */
.af-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.af-logo-text {
  font-family: var(--af-font-display);
  font-size: 20px;
  font-weight: 500;
  color: var(--af-slate-900);
  letter-spacing: -0.02em;
}

.af-logo-accent {
  color: var(--af-green-700);
}

/* Main Nav */
.af-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.af-nav-link {
  padding: 8px 16px;
  font-size: 14px;
  font-weight: 500;
  color: var(--af-slate-600);
  border-radius: var(--af-radius-sm);
  transition: var(--af-transition);
  letter-spacing: 0.01em;
}

.af-nav-link:hover {
  color: var(--af-slate-900);
  background: var(--af-sand-100);
}

.af-nav-link.active {
  color: var(--af-green-700);
  background: var(--af-green-50);
}

/* Header Right */
.af-header-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* User Menu */
.af-user-menu {
  position: relative;
}

.af-user-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px 6px 6px;
  border: 1px solid var(--af-sand-200);
  border-radius: 50px;
  background: var(--af-white);
  cursor: pointer;
  transition: var(--af-transition);
  font-family: var(--af-font-body);
}

.af-user-btn:hover {
  border-color: var(--af-sand-300);
  box-shadow: var(--af-shadow-sm);
}

.af-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--af-green-600);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.05em;
}

.af-user-name {
  font-size: 14px;
  font-weight: 500;
  color: var(--af-slate-700);
}

.af-chevron {
  color: var(--af-slate-400);
  transition: transform var(--af-transition);
}

.af-chevron.rotated {
  transform: rotate(180deg);
}

/* Dropdown */
.af-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 200px;
  background: var(--af-white);
  border: 1px solid var(--af-sand-200);
  border-radius: var(--af-radius-md);
  box-shadow: var(--af-shadow-lg);
  padding: 6px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  transition: all var(--af-transition);
}

.af-dropdown.open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.af-dropdown-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  font-size: 14px;
  color: var(--af-slate-700);
  border-radius: var(--af-radius-sm);
  transition: var(--af-transition);
  cursor: default;
}

.af-dropdown-item:hover {
  background: var(--af-sand-100);
}

.af-dropdown-item svg {
  color: var(--af-slate-400);
  flex-shrink: 0;
}

.af-dropdown-divider {
  height: 1px;
  background: var(--af-sand-200);
  margin: 4px 0;
}

.af-dropdown-logout {
  color: var(--af-red);
}

.af-dropdown-logout svg {
  color: var(--af-red);
}

/* Hamburger */
.af-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  background: none;
  border: none;
  cursor: pointer;
}

.af-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--af-slate-700);
  border-radius: 2px;
  transition: all 0.3s ease;
}

.af-hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.af-hamburger.open span:nth-child(2) { opacity: 0; }
.af-hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile Menu */
.af-mobile-menu {
  display: none;
  padding: 12px 24px 20px;
  border-top: 1px solid var(--af-sand-200);
  background: var(--af-white);
}

.af-mobile-menu.open { display: block; }

.af-mobile-link {
  display: block;
  padding: 12px 0;
  font-size: 15px;
  font-weight: 500;
  color: var(--af-slate-600);
  border-bottom: 1px solid var(--af-sand-100);
}

.af-mobile-link.active { color: var(--af-green-700); }
.af-mobile-link:last-child { border-bottom: none; }

.af-mobile-divider {
  height: 1px;
  background: var(--af-sand-300);
  margin: 8px 0;
}

.af-mobile-logout { color: var(--af-red); }


/* =============================================
   FOOTER
   ============================================= */
.af-footer {
  background: var(--af-slate-900);
  color: var(--af-slate-300);
  margin-top: auto;
}

.af-footer-inner {
  max-width: var(--af-container);
  margin: 0 auto;
  padding: 56px 24px 32px;
}

.af-footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.af-footer-brand {}

.af-logo-footer .af-logo-text {
  color: var(--af-white);
  font-size: 18px;
}

.af-logo-footer .af-logo-accent {
  color: var(--af-green-400);
}

.af-footer-tagline {
  margin-top: 16px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--af-slate-400);
}

.af-footer-col {}

.af-footer-heading {
  font-family: var(--af-font-body);
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--af-slate-400);
  margin-bottom: 16px;
}

.af-footer-link {
  display: block;
  font-size: 14px;
  color: var(--af-slate-300);
  padding: 5px 0;
  transition: var(--af-transition);
}

.af-footer-link.disabled {
  opacity: 0.5;
  cursor: default;
}

.af-footer-link:not(.disabled):hover {
  color: var(--af-white);
}

.af-footer-bottom {
  border-top: 1px solid var(--af-slate-700);
  padding-top: 24px;
}

.af-footer-copyright {
  font-size: 13px;
  color: var(--af-slate-500);
  margin-bottom: 8px;
}

.af-footer-regulatory {
  font-size: 12px;
  color: var(--af-slate-600);
  line-height: 1.5;
}

/* =============================================
   BUTTONS
   ============================================= */
.af-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  font-family: var(--af-font-body);
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--af-radius-sm);
  border: none;
  cursor: pointer;
  transition: all var(--af-transition);
  letter-spacing: 0.01em;
}

.af-btn-primary {
  background: var(--af-green-700);
  color: var(--af-white);
}
.af-btn-primary:hover {
  background: var(--af-green-800);
  box-shadow: var(--af-shadow-md);
  transform: translateY(-1px);
}

.af-btn-secondary {
  background: var(--af-white);
  color: var(--af-green-700);
  border: 1.5px solid var(--af-green-300);
}
.af-btn-secondary:hover {
  background: var(--af-green-50);
  border-color: var(--af-green-500);
}

.af-btn-lg {
  padding: 16px 32px;
  font-size: 16px;
  border-radius: var(--af-radius-md);
}

/* =============================================
   CARDS
   ============================================= */
.af-card {
  background: var(--af-white);
  border: 1px solid var(--af-sand-200);
  border-radius: var(--af-radius-lg);
  padding: 28px;
  transition: all var(--af-transition);
}

.af-card:hover {
  box-shadow: var(--af-shadow-md);
  border-color: var(--af-sand-300);
}

/* =============================================
   RESPONSIVE
   ============================================= */
@media (max-width: 900px) {
  .af-nav { display: none; }
  .af-user-menu { display: none; }
  .af-hamburger { display: flex; }
  .af-mobile-menu { display: none; }
  .af-mobile-menu.open { display: block; }
  .af-footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}

@media (max-width: 600px) {
  .af-footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .af-header-inner {
    padding: 0 16px;
  }
}