/* ============================================================
   Heritage Runs — Global Stylesheet
   ============================================================ */

/* ---------- Custom Properties ---------- */
:root {
  /* Colors */
  --color-bg: #0f0f0f;
  --color-bg-raised: #1a1a1a;
  --color-bg-card: #161616;
  --color-gold: #c9a84c;
  --color-gold-light: #e0c872;
  --color-text: #e8e4dc;
  --color-text-muted: #9a958b;
  --color-overlay: rgba(15, 15, 15, 0.7);
  --color-overlay-heavy: rgba(15, 15, 15, 0.85);
  --color-border: rgba(201, 168, 76, 0.18);
  --color-error: #e25c5c;
  --color-success: #4caf50;

  /* Fonts */
  --font-display: 'Cormorant Garamond', Georgia, serif;
  --font-body: 'Source Sans 3', 'Source Sans Pro', system-ui, sans-serif;

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 3rem;
  --space-xl: 5rem;
  --space-2xl: 8rem;

  /* Sizes */
  --max-width: 1200px;
  --header-height: 64px;
  --radius: 6px;
  --radius-lg: 12px;

  /* Transitions */
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --transition-fast: 200ms var(--ease-out);
  --transition-base: 400ms var(--ease-out);
  --transition-slow: 700ms var(--ease-out);
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-text);
  background: var(--color-bg);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: var(--color-gold);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-gold-light);
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

ul, ol {
  list-style: none;
}

/* ---------- Noise Texture Overlay ---------- */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 9999;
  pointer-events: none;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 256px 256px;
}

/* ---------- Typography ---------- */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.2;
  color: var(--color-text);
}

h1 { font-size: clamp(2.4rem, 6vw, 4.5rem); }
h2 { font-size: clamp(1.8rem, 4vw, 3rem); }
h3 { font-size: clamp(1.3rem, 2.5vw, 1.8rem); }
h4 { font-size: 1.15rem; }

.section-subtitle {
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: var(--space-xs);
}

/* ---------- Layout ---------- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.section {
  padding: var(--space-xl) 0;
}

/* ---------- Site Header ---------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-height);
  display: flex;
  align-items: center;
  transition: background var(--transition-base), box-shadow var(--transition-base);
}

.site-header.scrolled {
  background: rgba(15, 15, 15, 0.85);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  box-shadow: 0 1px 0 var(--color-border);
}

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

.logo {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: 0.02em;
}

.logo span {
  color: var(--color-gold);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5em;
  padding: 0.75em 1.8em;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border-radius: var(--radius);
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-gold);
  color: var(--color-bg);
}

.btn-primary:hover {
  background: var(--color-gold-light);
  color: var(--color-bg);
  transform: translateY(-1px);
  box-shadow: 0 4px 20px rgba(201, 168, 76, 0.3);
}

.btn-outline {
  border: 1px solid var(--color-gold);
  color: var(--color-gold);
}

.btn-outline:hover {
  background: var(--color-gold);
  color: var(--color-bg);
}

.btn-sm {
  padding: 0.55em 1.3em;
  font-size: 0.8rem;
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(15, 15, 15, 0.4) 0%,
    rgba(15, 15, 15, 0.6) 50%,
    rgba(15, 15, 15, 0.95) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 700px;
  padding: var(--space-lg) var(--space-md);
}

.hero-tagline {
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: var(--space-sm);
}

.hero h1 {
  margin-bottom: var(--space-md);
}

.hero p {
  font-size: 1.15rem;
  color: var(--color-text-muted);
  margin-bottom: var(--space-lg);
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
}

/* Detail-page hero (shorter) */
.hero--detail {
  min-height: 60vh;
}

/* ---------- Breadcrumb ---------- */
.breadcrumb {
  padding: var(--space-sm) 0;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.breadcrumb a {
  color: var(--color-text-muted);
}

.breadcrumb a:hover {
  color: var(--color-gold);
}

.breadcrumb span {
  margin: 0 0.4em;
  opacity: 0.5;
}

/* ---------- Marathon Card Grid ---------- */
.marathon-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
}

@media (min-width: 768px) {
  .marathon-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .marathon-grid {
    grid-template-columns: repeat(4, 1fr);
  }
  .marathon-grid .marathon-card:nth-child(-n+4) {
    grid-column: span 1;
  }
}

.marathon-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  min-height: 340px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  cursor: pointer;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.marathon-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
}

.marathon-card__bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  transition: transform var(--transition-slow);
}

.marathon-card:hover .marathon-card__bg {
  transform: scale(1.06);
}

.marathon-card__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(15, 15, 15, 0.92) 0%,
    rgba(15, 15, 15, 0.3) 60%,
    transparent 100%
  );
}

.marathon-card__content {
  position: relative;
  z-index: 2;
  padding: var(--space-md);
}

.marathon-card__country {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: 0.3em;
}

.marathon-card__title {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 0.5em;
}

.marathon-card__desc {
  font-size: 0.88rem;
  color: var(--color-text-muted);
  line-height: 1.5;
  margin-bottom: 0.8em;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.marathon-card__link {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-gold);
}

.marathon-card__link::after {
  content: ' →';
}

/* ---------- Info Grid (Detail Pages) ---------- */
.info-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
}

@media (min-width: 768px) {
  .info-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.info-card {
  background: var(--color-bg-raised);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--space-md);
  text-align: center;
}

.info-card__label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: 0.4em;
}

.info-card__value {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-gold);
}

/* ---------- Split Layout (Detail Pages) ---------- */
.split-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
}

@media (min-width: 768px) {
  .split-layout {
    grid-template-columns: 1fr 320px;
  }
}

.prose h2 {
  margin-top: var(--space-lg);
  margin-bottom: var(--space-sm);
}

.prose h2:first-child {
  margin-top: 0;
}

.prose p {
  margin-bottom: var(--space-sm);
  color: var(--color-text-muted);
}

.prose ul {
  margin-bottom: var(--space-sm);
  padding-left: 1.2em;
}

.prose ul li {
  position: relative;
  padding-left: 1em;
  margin-bottom: 0.5em;
  color: var(--color-text-muted);
}

.prose ul li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--color-gold);
}

.callout {
  border-left: 3px solid var(--color-gold);
  padding: var(--space-md);
  margin: var(--space-md) 0;
  background: var(--color-bg-raised);
  border-radius: 0 var(--radius) var(--radius) 0;
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-style: italic;
  line-height: 1.5;
  color: var(--color-text);
}

/* ---------- Sidebar ---------- */
.sidebar-cta {
  position: sticky;
  top: calc(var(--header-height) + var(--space-md));
  background: var(--color-bg-raised);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg) var(--space-md);
  text-align: center;
}

.sidebar-cta h3 {
  margin-bottom: var(--space-xs);
}

.sidebar-cta p {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  margin-bottom: var(--space-md);
}

.sidebar-cta .btn {
  width: 100%;
}

/* ---------- Bottom CTA ---------- */
.bottom-cta {
  text-align: center;
  padding: var(--space-2xl) 0;
  background: linear-gradient(to bottom, transparent, rgba(201, 168, 76, 0.04), transparent);
}

.bottom-cta h2 {
  margin-bottom: var(--space-sm);
}

.bottom-cta p {
  color: var(--color-text-muted);
  max-width: 500px;
  margin: 0 auto var(--space-md);
}

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding: var(--space-lg) 0;
  text-align: center;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.site-footer a {
  color: var(--color-text-muted);
}

.site-footer a:hover {
  color: var(--color-gold);
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: var(--space-md);
  margin-bottom: var(--space-sm);
  flex-wrap: wrap;
}

/* ---------- Modal ---------- */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(0, 0, 0, 0.75);
  -webkit-backdrop-filter: blur(4px);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-base), visibility var(--transition-base);
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal {
  background: var(--color-bg-raised);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  width: 90%;
  max-width: 540px;
  max-height: 90vh;
  overflow-y: auto;
  padding: var(--space-lg);
  position: relative;
  transform: translateY(20px) scale(0.97);
  transition: transform var(--transition-base);
}

.modal-overlay.active .modal {
  transform: translateY(0) scale(1);
}

.modal-close {
  position: absolute;
  top: var(--space-sm);
  right: var(--space-sm);
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}

.modal-close:hover {
  color: var(--color-text);
}

.modal h2 {
  font-size: 1.6rem;
  margin-bottom: var(--space-xs);
}

.modal > p {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  margin-bottom: var(--space-md);
}

/* ---------- Form ---------- */
.form-group {
  margin-bottom: var(--space-sm);
}

.form-label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: 0.35em;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 0.7em 0.9em;
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--color-text);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  transition: border-color var(--transition-fast);
  outline: none;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--color-gold);
}

.form-input.error,
.form-select.error,
.form-textarea.error {
  border-color: var(--color-error);
}

.form-input[readonly] {
  background: rgba(201, 168, 76, 0.08);
  border-color: var(--color-gold);
  color: var(--color-gold);
  cursor: default;
}

.form-error {
  font-size: 0.78rem;
  color: var(--color-error);
  margin-top: 0.25em;
  display: none;
}

.form-error.visible {
  display: block;
}

.form-textarea {
  resize: vertical;
  min-height: 70px;
}

.form-row {
  display: flex;
  gap: var(--space-xs);
}

.form-row .form-group {
  flex: 1;
}

.phone-group {
  display: flex;
  gap: var(--space-xs);
}

.phone-group .form-select {
  width: 110px;
  flex-shrink: 0;
}

.phone-group .form-input {
  flex: 1;
}

/* Radio group */
.radio-group {
  display: flex;
  gap: var(--space-sm);
}

.radio-label {
  display: flex;
  align-items: center;
  gap: 0.4em;
  font-size: 0.92rem;
  color: var(--color-text-muted);
  cursor: pointer;
}

.radio-label input[type="radio"] {
  accent-color: var(--color-gold);
}

/* Submit button in form */
.form-submit {
  width: 100%;
  margin-top: var(--space-sm);
}

.form-submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* ---------- Toast ---------- */
.toast {
  position: fixed;
  bottom: var(--space-md);
  right: var(--space-md);
  z-index: 300;
  background: var(--color-bg-raised);
  border: 1px solid var(--color-gold);
  border-radius: var(--radius);
  padding: var(--space-sm) var(--space-md);
  font-size: 0.9rem;
  color: var(--color-text);
  transform: translateY(120%);
  transition: transform var(--transition-base);
  max-width: 340px;
}

.toast.visible {
  transform: translateY(0);
}

.toast.toast--error {
  border-color: var(--color-error);
}

/* ---------- Animations ---------- */
@keyframes reveal-up {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fade-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 100ms; }
.reveal-delay-2 { transition-delay: 200ms; }
.reveal-delay-3 { transition-delay: 300ms; }
.reveal-delay-4 { transition-delay: 400ms; }

/* ---------- Utility ---------- */
.text-center { text-align: center; }
.text-gold { color: var(--color-gold); }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }

/* Body lock when modal open */
body.modal-open {
  overflow: hidden;
}

/* ---------- Responsive ---------- */
@media (max-width: 767px) {
  .hero--detail {
    min-height: 50vh;
  }

  .modal {
    width: 100%;
    max-width: 100%;
    min-height: 100vh;
    border-radius: 0;
    padding: var(--space-md);
  }

  .marathon-card {
    min-height: 280px;
  }

  .phone-group .form-select {
    width: 95px;
  }
}