:root {
  --green-primary: #006B3F;
  --green-dark: #004D2E;
  --green-light: #E8F5EE;
  --white: #FFFFFF;
  --off-white: #F5F7F5;
  --bg: var(--off-white);
  --surface: var(--white);
  --surface2: var(--green-light);
  --text: #1A1A1A;
  --muted: #4A5568;
  --accent: var(--green-primary);
  --accent2: var(--green-dark);
  --warning: #B45309;
  --danger: #B91C1C;
  --border: #D1E0D6;
  --radius: 12px;
  --font: "Segoe UI", system-ui, -apple-system, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--green-dark); text-decoration: underline; }

.container { width: min(1100px, 92vw); margin: 0 auto; padding: 1rem 0 3rem; }

main.container { flex: 1; }

/* Header — school green bar */
.site-header {
  background: linear-gradient(180deg, var(--green-primary) 0%, var(--green-dark) 100%);
  border-bottom: 3px solid rgba(255, 255, 255, 0.15);
  position: sticky;
  top: 0;
  z-index: 10;
  box-shadow: 0 2px 8px rgba(0, 77, 46, 0.25);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 0;
  flex-wrap: wrap;
}

.brand-block { display: flex; flex-direction: column; gap: 0.1rem; }

.brand {
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--white);
  text-decoration: none;
  letter-spacing: 0.01em;
}

.brand:hover { color: var(--white); text-decoration: none; opacity: 0.95; }

.brand span { color: rgba(255, 255, 255, 0.92); font-weight: 800; }

.brand-tagline {
  font-size: 0.72rem;
  color: rgba(255, 255, 255, 0.78);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 600;
}

.site-nav { display: flex; gap: 0.35rem; flex-wrap: wrap; }

.site-nav a {
  color: rgba(255, 255, 255, 0.88);
  padding: 0.4rem 0.75rem;
  border-radius: 999px;
  font-size: 0.92rem;
  font-weight: 500;
}

.site-nav a.active,
.site-nav a:hover {
  color: var(--green-dark);
  background: var(--white);
  text-decoration: none;
}

.nav-auth { display: flex; align-items: center; gap: 0.5rem; flex-wrap: wrap; }

.nav-user { color: rgba(255, 255, 255, 0.9); font-size: 0.9rem; }

.site-header .btn-ghost {
  background: transparent;
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.55);
}

.site-header .btn-ghost:hover {
  background: rgba(255, 255, 255, 0.12);
  color: var(--white);
}

.site-header .btn-primary {
  background: var(--white);
  color: var(--green-dark);
  font-weight: 600;
}

.site-header .btn-primary:hover {
  background: var(--green-light);
}

h1, h2 { margin: 0 0 0.75rem; }

h1 {
  font-size: 1.75rem;
  color: var(--green-dark);
}

h2 {
  font-size: 1.15rem;
  color: var(--green-primary);
  font-weight: 700;
}

.subtitle { color: var(--muted); margin-bottom: 1.5rem; }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  margin-bottom: 1.25rem;
  box-shadow: 0 1px 4px rgba(0, 107, 63, 0.06);
}

.card h2 { margin-top: 0; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: none;
  border-radius: 999px;
  padding: 0.55rem 1rem;
  font: inherit;
  cursor: pointer;
  font-weight: 600;
  transition: background 0.15s, color 0.15s;
}

.btn-primary {
  background: var(--green-primary);
  color: var(--white);
}

.btn-primary:hover { background: var(--green-dark); }

.btn-ghost {
  background: transparent;
  color: var(--green-dark);
  border: 1px solid var(--border);
}

.btn-ghost:hover { background: var(--green-light); }

.table-wrap { overflow-x: auto; }

table { width: 100%; border-collapse: collapse; font-size: 0.95rem; }

th, td {
  padding: 0.65rem 0.75rem;
  border-bottom: 1px solid var(--border);
  text-align: left;
}

th {
  color: var(--green-dark);
  font-weight: 700;
  cursor: pointer;
  background: var(--green-light);
}

tbody tr:hover { background: var(--off-white); }

.form-grid { display: grid; gap: 0.85rem; max-width: 420px; }

label { display: grid; gap: 0.35rem; font-size: 0.9rem; color: var(--muted); font-weight: 500; }

input, select, textarea {
  width: 100%;
  padding: 0.65rem 0.75rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--white);
  color: var(--text);
  font: inherit;
}

input:focus, select:focus, textarea:focus {
  outline: 2px solid var(--green-primary);
  outline-offset: 1px;
  border-color: var(--green-primary);
}

.form-message { min-height: 1.25rem; font-size: 0.9rem; margin-top: 0.5rem; }
.form-message.error { color: var(--danger); }
.form-message.success { color: var(--green-primary); }
.error { color: var(--danger); }

.stats-row, .coach-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 0.75rem;
}

.stat-card {
  background: var(--green-light);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.85rem;
  display: grid;
  gap: 0.25rem;
}

.stat-card span { color: var(--muted); font-size: 0.85rem; }
.stat-card strong { font-size: 1.35rem; color: var(--green-dark); }

.week-row { display: flex; flex-wrap: wrap; gap: 0.5rem; }

.week-cell {
  background: var(--green-light);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.6rem 0.75rem;
  min-width: 72px;
  text-align: center;
}

.week-cell span { display: block; color: var(--muted); font-size: 0.75rem; }
.week-cell strong { color: var(--green-dark); }

.week-cell.total {
  border: 2px solid var(--green-primary);
  background: var(--white);
}

.banner {
  padding: 0.65rem 1rem;
  text-align: center;
  font-size: 0.9rem;
}

.banner-warning {
  background: #FEF3C7;
  color: #92400E;
  border-bottom: 1px solid #FDE68A;
}

.flag-card {
  background: var(--green-light);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.75rem;
  margin-bottom: 0.5rem;
}

.flag-card p { margin: 0.35rem 0; color: var(--muted); font-size: 0.9rem; }

.search-input { max-width: 280px; margin-bottom: 1rem; }

.site-footer {
  margin-top: auto;
  padding: 1.25rem 0;
  background: var(--green-dark);
  color: rgba(255, 255, 255, 0.85);
  font-size: 0.88rem;
  text-align: center;
}

.site-footer a {
  color: var(--white);
  font-weight: 600;
}

.site-footer a:hover { opacity: 0.9; text-decoration: underline; }

@media (max-width: 640px) {
  .header-inner { flex-direction: column; align-items: flex-start; }
}