/* ============================================================
   BACK NINE BEACH CLUB — Coach Portal
   ============================================================ */

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

:root {
  --bg:         #0a1410;
  --bg-card:    #0f1e18;
  --bg-card2:   #121f1a;
  --border:     rgba(255,255,255,0.08);
  --border-mid: rgba(255,255,255,0.13);
  --cream:      #f0ead6;
  --text-dim:   #8a7f70;
  --gold:       #c9a84c;
  --gold-dim:   rgba(201,168,76,0.12);
  --gold-light: #d4b86a;
  --radius:     8px;
  --font-serif: 'Cormorant Garamond', Georgia, serif;
  --font-sans:  'Inter', system-ui, sans-serif;
  --transition: 0.2s ease;
}

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--cream);
  min-height: 100vh;
  line-height: 1.5;
}

.hidden { display: none !important; }

/* ============================================================
   LOGIN & REGISTRATION SCREENS
   ============================================================ */

#loginScreen,
#registerScreen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem 1rem;
  background:
    radial-gradient(ellipse at 65% 15%, rgba(201,168,76,0.07) 0%, transparent 55%),
    radial-gradient(ellipse at 20% 85%, rgba(26,46,36,0.7) 0%, transparent 55%),
    var(--bg);
}

.cl-card {
  width: 100%;
  max-width: 400px;
  background: var(--bg-card);
  border: 1px solid var(--border-mid);
  border-radius: 14px;
  padding: 2.5rem 2rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  box-shadow: 0 24px 64px rgba(0,0,0,0.55);
}

.cl-card--wide { max-width: 480px; }

/* Logo */
.cl-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.2rem;
}
.cl-b9 {
  font-family: var(--font-serif);
  font-size: 1.9rem;
  font-weight: 700;
  color: var(--gold);
  letter-spacing: -0.02em;
  line-height: 1;
}
.cl-brand {
  font-family: var(--font-serif);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--cream);
  line-height: 1.3;
}
.cl-brand em {
  color: var(--text-dim);
  font-style: normal;
  font-size: 0.75rem;
  display: block;
}

.cl-title {
  font-family: var(--font-serif);
  font-size: 1.65rem;
  font-weight: 600;
  color: var(--cream);
  line-height: 1.2;
}

.cl-sub {
  font-size: 0.77rem;
  color: var(--text-dim);
  margin-top: -0.4rem;
}

/* Form */
.cl-form { display: flex; flex-direction: column; gap: 0.8rem; }

.cl-form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.6rem;
}

.cl-label {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  font-size: 0.67rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.cl-input {
  width: 100%;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border-mid);
  border-radius: var(--radius);
  color: var(--cream);
  font-family: var(--font-sans);
  font-size: 0.85rem;
  padding: 0.65rem 0.85rem;
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
  -webkit-appearance: none;
}
.cl-input::placeholder { color: rgba(240,234,214,0.22); }
.cl-input:focus {
  border-color: var(--gold);
  box-shadow: 0 0 0 3px rgba(201,168,76,0.12);
}

/* Feedback */
.cl-error {
  font-size: 0.74rem;
  color: #e8a0a0;
  background: rgba(200,80,80,0.1);
  border: 1px solid rgba(200,80,80,0.22);
  padding: 0.5rem 0.8rem;
  border-radius: 5px;
  line-height: 1.4;
}
.cl-success {
  font-size: 0.74rem;
  color: #a0e8b0;
  background: rgba(80,200,120,0.1);
  border: 1px solid rgba(80,200,120,0.22);
  padding: 0.5rem 0.8rem;
  border-radius: 5px;
  line-height: 1.4;
}

/* Buttons */
.cl-btn {
  width: 100%;
  padding: 0.72rem 1.2rem;
  border-radius: var(--radius);
  font-family: var(--font-sans);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all var(--transition);
  border: 1px solid transparent;
  text-align: center;
}
.cl-btn--primary {
  background: var(--gold);
  color: #0a1410;
  border-color: var(--gold);
}
.cl-btn--primary:hover {
  background: var(--gold-light);
  box-shadow: 0 4px 22px rgba(201,168,76,0.35);
}
.cl-btn--primary:disabled { opacity: 0.55; cursor: not-allowed; }

.cl-btn--outline {
  background: transparent;
  color: var(--cream);
  border-color: var(--border-mid);
}
.cl-btn--outline:hover { border-color: var(--gold); color: var(--gold); }

.cl-btn--ghost {
  background: transparent;
  color: var(--text-dim);
  border-color: transparent;
  font-size: 0.7rem;
}
.cl-btn--ghost:hover { color: var(--cream); }

/* Divider */
.cl-divider {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--text-dim);
  font-size: 0.66rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.cl-divider::before, .cl-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

/* Back link */
.cl-back {
  text-align: center;
  font-size: 0.67rem;
  color: var(--text-dim);
  text-decoration: none;
  letter-spacing: 0.06em;
  transition: color var(--transition);
  margin-top: -0.2rem;
}
.cl-back:hover { color: var(--gold); }

/* ============================================================
   DASHBOARD HEADER
   ============================================================ */

.ch-header {
  background: rgba(10,20,16,0.95);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(20px);
  position: sticky;
  top: 0;
  z-index: 100;
}

.ch-header-inner {
  max-width: 920px;
  margin: 0 auto;
  padding: 0.9rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.ch-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  margin-right: auto;
}
.ch-b9 {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--gold);
  line-height: 1;
}
.ch-brand {
  font-size: 0.68rem;
  font-weight: 500;
  color: var(--text-dim);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.ch-coach-info {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.05rem;
}
.ch-coach-label {
  font-size: 0.56rem;
  color: var(--text-dim);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.ch-coach-name {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--gold);
  font-family: var(--font-serif);
}

.ch-logout {
  background: transparent;
  border: 1px solid var(--border-mid);
  color: var(--text-dim);
  font-family: var(--font-sans);
  font-size: 0.63rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.4rem 0.85rem;
  border-radius: 4px;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}
.ch-logout:hover { border-color: var(--gold); color: var(--gold); }

/* ============================================================
   DASHBOARD MAIN
   ============================================================ */

.ch-main {
  max-width: 920px;
  margin: 0 auto;
  padding: 2rem 1.5rem 3rem;
}

/* Stats bar */
.ch-stats {
  display: flex;
  gap: 1rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.ch-stat {
  flex: 1;
  min-width: 110px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.1rem;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}
.ch-stat--gold {
  border-color: rgba(201,168,76,0.28);
  background: rgba(201,168,76,0.05);
}

.ch-stat-num {
  font-family: var(--font-serif);
  font-size: 2.1rem;
  font-weight: 700;
  color: var(--cream);
  line-height: 1;
}
.ch-stat--gold .ch-stat-num { color: var(--gold); }

.ch-stat-label {
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-dim);
}

/* Date nav */
.ch-date-nav {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  margin-bottom: 1.75rem;
  flex-wrap: wrap;
}

.ch-nav-btn {
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border-mid);
  color: var(--cream);
  font-family: var(--font-sans);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.45rem 0.9rem;
  border-radius: 4px;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}
.ch-nav-btn:hover { border-color: var(--gold); color: var(--gold); }

.ch-nav-btn--today {
  margin-left: auto;
  color: var(--gold);
  border-color: rgba(201,168,76,0.38);
}
.ch-nav-btn--today:hover { background: rgba(201,168,76,0.1); }

.ch-date-label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--cream);
  flex: 1;
  text-align: center;
  white-space: nowrap;
}

/* Day groups */
.ch-day-group { margin-bottom: 1.75rem; }

.ch-day-header {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  margin-bottom: 0.65rem;
  padding-bottom: 0.45rem;
  border-bottom: 1px solid var(--border);
}

.ch-day-date {
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--cream);
}

.ch-day-today-badge {
  background: var(--gold);
  color: #0a1410;
  font-size: 0.56rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.15rem 0.55rem;
  border-radius: 20px;
}

.ch-day-count {
  margin-left: auto;
  font-size: 0.6rem;
  color: var(--text-dim);
  font-weight: 500;
  letter-spacing: 0.06em;
}

.ch-day--today .ch-day-date { color: var(--gold); }

.ch-day-bookings { display: flex; flex-direction: column; gap: 0.6rem; }

/* Booking card */
.ch-booking-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-left: 3px solid var(--gold);
  border-radius: var(--radius);
  padding: 0.9rem 1rem;
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  transition: background var(--transition), transform var(--transition);
}
.ch-booking-card:hover { background: var(--bg-card2); transform: translateX(2px); }

.ch-bc-time {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--gold);
  min-width: 54px;
  line-height: 1.15;
  flex-shrink: 0;
}

.ch-bc-body { flex: 1; min-width: 0; }

.ch-bc-name {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--cream);
  margin-bottom: 0.25rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.ch-bc-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  font-size: 0.68rem;
  color: var(--text-dim);
  font-weight: 500;
}

.ch-bc-bay { font-weight: 700; }

.ch-bc-extra {
  background: rgba(255,255,255,0.06);
  border-radius: 3px;
  padding: 0.1rem 0.4rem;
  color: var(--cream);
}

.ch-bc-notes {
  margin-top: 0.4rem;
  font-size: 0.68rem;
  color: var(--text-dim);
  font-style: italic;
  line-height: 1.4;
}

.ch-bc-ref {
  font-size: 0.58rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--text-dim);
  align-self: flex-start;
  margin-top: 0.15rem;
  flex-shrink: 0;
}

/* Empty state */
.ch-empty {
  text-align: center;
  padding: 4rem 2rem;
  color: var(--text-dim);
}
.ch-empty-icon { font-size: 2.5rem; margin-bottom: 1rem; opacity: 0.5; }
.ch-empty p { font-size: 0.88rem; margin-bottom: 0.4rem; }
.ch-empty-sub { font-size: 0.74rem; opacity: 0.65; }

/* ============================================================
   RESPONSIVE
   ============================================================ */

@media (max-width: 600px) {
  .cl-card { padding: 1.75rem 1.2rem; }
  .cl-card--wide { padding: 1.75rem 1.2rem; }
  .cl-form-row { grid-template-columns: 1fr; }

  .ch-header-inner { padding: 0.8rem 1rem; gap: 0.65rem; }
  .ch-brand { display: none; }

  .ch-main { padding: 1.25rem 1rem 2.5rem; }

  .ch-stats { gap: 0.55rem; }
  .ch-stat { padding: 0.75rem 0.85rem; min-width: 80px; }
  .ch-stat-num { font-size: 1.6rem; }

  .ch-date-nav { gap: 0.4rem; }
  .ch-date-label { order: -1; width: 100%; flex: none; }
  .ch-nav-btn--today { margin-left: 0; }

  .ch-bc-time { font-size: 1rem; min-width: 44px; }
}