/* ===========================================================
   Wimboldon and Kingston Football League — Design System
   Mobile-first. CSS Grid for layout. Placeholder brand palette.
   =========================================================== */

:root {
  /* Placeholder brand palette — swap once real branding exists */
  --color-primary: #14532d;      /* deep pitch green */
  --color-primary-dark: #0b3319;
  --color-primary-light: #1f7a43;
  --color-accent: #d4a72c;       /* gold */
  --color-accent-dark: #a9821f;

  --color-bg: #f7f8f6;
  --color-surface: #ffffff;
  --color-text: #1a1f1c;
  --color-text-muted: #5a6560;
  --color-border: #e0e4e1;

  --color-danger: #b3261e;
  --color-danger-bg: #fbeceb;
  --color-success: #1e6b3a;
  --color-success-bg: #eaf6ee;

  --font-base: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-heading: var(--font-base);

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4rem;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.06), 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 10px rgba(0, 0, 0, 0.08), 0 2px 4px rgba(0, 0, 0, 0.06);

  --container-max: 1200px;

  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-bg: #10140f;
    --color-surface: #182018;
    --color-text: #eef1ee;
    --color-text-muted: #a6b0a9;
    --color-border: #2a332b;
    --color-primary-light: #3a9c62;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
    --shadow-md: 0 4px 10px rgba(0, 0, 0, 0.5);
    color-scheme: dark;
  }
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font-base);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--color-primary-light); text-decoration: none; }
a:hover, a:focus-visible { text-decoration: underline; }
h1, h2, h3, h4 { font-family: var(--font-heading); line-height: 1.2; margin: 0 0 var(--space-3); }
p { margin: 0 0 var(--space-4); }
ul, ol { margin: 0; padding: 0; list-style: none; }
button, input, select, textarea { font: inherit; color: inherit; }
:focus-visible { outline: 3px solid var(--color-accent); outline-offset: 2px; }

/* ---------- Layout primitives ---------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-4);
}

.grid {
  display: grid;
  gap: var(--space-5);
}

/* Auto-fit card grid: 1 column on mobile, grows as space allows */
.grid--cards {
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr));
}

.grid--two {
  grid-template-columns: 1fr;
}
@media (min-width: 720px) {
  .grid--two { grid-template-columns: 1fr 1fr; }
}

.section {
  padding-block: var(--space-7);
}
.section--tight {
  padding-block: var(--space-6);
}
.section--alt {
  background: var(--color-surface);
  border-block: 1px solid var(--color-border);
}

.stack { display: flex; flex-direction: column; gap: var(--space-3); }
.cluster { display: flex; flex-wrap: wrap; gap: var(--space-3); align-items: center; }

/* ---------- Header / Nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--color-primary);
  color: #fff;
  box-shadow: var(--shadow-sm);
}
.site-header a { color: #fff; }
.site-header__bar {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: var(--space-4);
  padding-block: var(--space-3);
}
.site-header__brand {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-weight: 700;
  font-size: 1.05rem;
  text-decoration: none;
}
.site-header__brand:hover { text-decoration: none; opacity: 0.9; }
.site-header__crest {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--color-accent);
  color: var(--color-primary-dark);
  display: grid;
  place-items: center;
  font-weight: 800;
  font-size: 0.85rem;
  flex-shrink: 0;
}

.site-nav__toggle {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-radius: var(--radius-sm);
  padding: var(--space-2) var(--space-3);
  cursor: pointer;
}
@media (min-width: 800px) {
  .site-nav__toggle { display: none; }
}

.site-nav__list {
  display: grid;
  gap: var(--space-1);
  padding-block: var(--space-2) var(--space-4);
}
.site-nav[data-open="false"] .site-nav__list { display: none; }
@media (min-width: 800px) {
  .site-nav {
    grid-column: 1 / -1;
  }
  .site-nav[data-open="false"] .site-nav__list,
  .site-nav__list {
    display: flex;
    gap: var(--space-5);
    padding: 0;
  }
  .site-header__bar { grid-template-columns: auto 1fr; }
}
.site-nav__list a {
  display: block;
  padding: var(--space-2) var(--space-1);
  font-weight: 500;
}
.site-nav__list a[aria-current="page"] {
  border-bottom: 2px solid var(--color-accent);
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--color-primary-dark);
  color: rgba(255, 255, 255, 0.85);
  margin-top: var(--space-8);
}
.site-footer .container {
  padding-block: var(--space-6);
  display: grid;
  gap: var(--space-4);
}
.site-footer a { color: #fff; }
.site-footer__meta {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.6);
}

/* ---------- Hero ---------- */
.hero {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: #fff;
}
.hero .container {
  padding-block: var(--space-8);
  display: grid;
  gap: var(--space-4);
  max-width: 760px;
}
.hero h1 { font-size: clamp(1.75rem, 5vw, 2.75rem); }
.hero p { font-size: 1.1rem; color: rgba(255, 255, 255, 0.9); }

.page-header {
  background: var(--color-primary);
  color: #fff;
}
.page-header .container { padding-block: var(--space-6); }
.page-header h1 { margin: 0; }
.page-header p { margin: var(--space-2) 0 0; color: rgba(255, 255, 255, 0.85); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
}
.btn:hover, .btn:focus-visible { text-decoration: none; }
.btn--primary {
  background: var(--color-accent);
  color: var(--color-primary-dark);
}
.btn--primary:hover { background: var(--color-accent-dark); }
.btn--outline {
  background: transparent;
  border-color: currentColor;
  color: #fff;
}
.btn--outline:hover { background: rgba(255, 255, 255, 0.12); }
.btn--sm { padding: var(--space-2) var(--space-3); font-size: 0.85rem; }
.btn--danger { background: var(--color-danger); color: #fff; }
.btn--danger:hover { background: #8c1e18; }
.btn--ghost { background: transparent; color: var(--color-primary-light); border-color: var(--color-border); }
.btn:disabled { opacity: 0.6; cursor: not-allowed; }

/* ---------- Cards ---------- */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  box-shadow: var(--shadow-sm);
}
.card h3 { margin-bottom: var(--space-1); }

.event-card {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-4);
}
.event-card__date {
  background: var(--color-primary);
  color: #fff;
  border-radius: var(--radius-sm);
  padding: var(--space-2) var(--space-3);
  text-align: center;
  min-width: 4.5rem;
  height: fit-content;
}
.event-card__date .day { display: block; font-size: 1.4rem; font-weight: 700; line-height: 1; }
.event-card__date .month { display: block; font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.05em; }
.event-card__category {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-primary-light);
  margin-bottom: var(--space-1);
}

.person-card {
  text-align: left;
  display: grid;
  gap: var(--space-3);
}
.person-card__avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: 1.1rem;
}
.person-card__role {
  color: var(--color-primary-light);
  font-weight: 600;
  font-size: 0.9rem;
}
.person-card__meta {
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.doc-card {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: var(--space-4);
}
.doc-card__icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: var(--color-primary);
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: 0.75rem;
  flex-shrink: 0;
}
.doc-card__category {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--color-text-muted);
}
@media (max-width: 480px) {
  .doc-card { grid-template-columns: auto 1fr; }
  .doc-card__action { grid-column: 1 / -1; }
}

/* ---------- States ---------- */
.state {
  padding: var(--space-6);
  text-align: center;
  color: var(--color-text-muted);
}
.state--error { color: var(--color-danger); }
.badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  padding: var(--space-1) var(--space-2);
  border-radius: 999px;
  background: var(--color-success-bg);
  color: var(--color-success);
}

/* ---------- Forms ---------- */
.field { display: grid; gap: var(--space-1); margin-bottom: var(--space-4); }
.field label { font-weight: 600; font-size: 0.9rem; }
.field input,
.field select,
.field textarea {
  padding: var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  color: var(--color-text);
  width: 100%;
}
.field textarea { resize: vertical; min-height: 5rem; }
.form-error {
  background: var(--color-danger-bg);
  color: var(--color-danger);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-4);
  display: none;
}
.form-error[data-visible="true"] { display: block; }

/* ---------- Utility ---------- */
.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
.text-muted { color: var(--color-text-muted); }
.text-center { text-align: center; }
.mt-0 { margin-top: 0; }

/* ---------- Tables ---------- */
table {
  width: 100%;
  border-collapse: collapse;
}
table td {
  padding: var(--space-3);
  border-bottom: 1px solid var(--color-border);
}
table tr:last-child td {
  border-bottom: none;
}

/* ---------- Loading / States ---------- */
.spinner {
  display: inline-block;
  width: 1em;
  height: 1em;
  border: 2px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}
@keyframes spin {
  to { transform: rotate(360deg); }
}