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

:root {
  --green-deep: #1a3a2a;
  --green-mid:  #2d6a4f;
  --green-light:#52b788;
  --gold:       #c9a84c;
  --gold-light: #e9c46a;
  --cream:      #f4f1e8;
  --cream-dark: #e8e2d0;
  --ink:        #1c1c1c;
  --muted:      #6b7059;
  --white:      #ffffff;
  --shadow:     rgba(26,58,42,0.15);
}

body {
  font-family: 'DM Mono', monospace;
  background: var(--cream);
  color: var(--ink);
  min-height: 100vh;
}

/* ── LOGIN ── */
#login-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--green-deep);
  background-image:
    radial-gradient(ellipse at 20% 50%, rgba(45,106,79,0.4) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 20%, rgba(82,183,136,0.15) 0%, transparent 50%);
  position: relative;
  overflow: hidden;
}

#login-screen::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(
    0deg, transparent, transparent 39px,
    rgba(255,255,255,0.03) 39px, rgba(255,255,255,0.03) 40px
  ), repeating-linear-gradient(
    90deg, transparent, transparent 39px,
    rgba(255,255,255,0.03) 39px, rgba(255,255,255,0.03) 40px
  );
}

.login-card {
  position: relative;
  background: var(--cream);
  border: 1px solid var(--cream-dark);
  padding: 3rem 3.5rem;
  width: 100%;
  max-width: 420px;
  box-shadow: 0 32px 80px rgba(0,0,0,0.4);
}

.login-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--green-mid), var(--gold));
}

.login-logo {
  font-family: 'DM Serif Display', serif;
  font-size: 2rem;
  color: var(--green-deep);
  letter-spacing: -0.02em;
  margin-bottom: 0.25rem;
}

.login-tagline {
  font-size: 0.7rem;
  color: var(--muted);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 2.5rem;
}

.login-card label {
  display: block;
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.5rem;
}

.login-card input {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--cream-dark);
  background: var(--white);
  font-family: 'DM Mono', monospace;
  font-size: 0.9rem;
  color: var(--ink);
  margin-bottom: 1.25rem;
  outline: none;
  transition: border-color 0.2s;
}

.login-card input:focus { border-color: var(--green-mid); }

.login-btn {
  width: 100%;
  padding: 0.85rem;
  background: var(--green-deep);
  color: var(--cream);
  border: none;
  font-family: 'DM Mono', monospace;
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background 0.2s, transform 0.1s;
  margin-top: 0.5rem;
}

.login-btn:hover { background: var(--green-mid); }
.login-btn:active { transform: scale(0.99); }
.login-btn:disabled { opacity: 0.6; cursor: not-allowed; }

.login-note {
  margin-top: 1.5rem;
  font-size: 0.65rem;
  color: var(--muted);
  line-height: 1.6;
  text-align: center;
}

.error-msg {
  background: #fde8e8;
  border-left: 3px solid #c0392b;
  padding: 0.75rem 1rem;
  font-size: 0.75rem;
  color: #c0392b;
  margin-bottom: 1rem;
}

/* ── APP SHELL ── */
#app { display: none; min-height: 100vh; flex-direction: column; }

header {
  background: var(--green-deep);
  color: var(--cream);
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 12px var(--shadow);
}

.header-logo {
  font-family: 'DM Serif Display', serif;
  font-size: 1.4rem;
  letter-spacing: -0.01em;
}

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

.header-right {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.user-badge {
  font-size: 0.7rem;
  color: var(--green-light);
  letter-spacing: 0.05em;
}

.logout-btn {
  background: none;
  border: 1px solid rgba(255,255,255,0.2);
  color: var(--cream);
  font-family: 'DM Mono', monospace;
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.4rem 0.9rem;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
}

.logout-btn:hover { border-color: var(--gold); background: rgba(201,168,76,0.1); }

/* ── TABS ── */
.tab-bar {
  background: var(--white);
  border-bottom: 1px solid var(--cream-dark);
  padding: 0 2rem;
  display: flex;
  gap: 0;
}

.tab-btn {
  background: none;
  border: none;
  border-bottom: 3px solid transparent;
  font-family: 'DM Mono', monospace;
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  padding: 1rem 1.25rem;
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s;
}

.tab-btn:hover { color: var(--green-mid); }
.tab-btn.active { color: var(--green-deep); border-bottom-color: var(--gold); }

/* ── MAIN CONTENT ── */
main { flex: 1; padding: 2rem; max-width: 1200px; width: 100%; margin: 0 auto; }

.tab-panel { display: none; animation: fadeIn 0.3s ease; }
.tab-panel.active { display: block; }

@keyframes fadeIn { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: translateY(0); } }

/* ── STAT CARDS ── */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
  margin-bottom: 2rem;
}

.stat-card {
  background: var(--white);
  border: 1px solid var(--cream-dark);
  padding: 1.5rem;
  position: relative;
  overflow: hidden;
}

.stat-card::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--green-mid), var(--gold));
}

.stat-label {
  font-size: 0.6rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.5rem;
}

.stat-value {
  font-family: 'DM Serif Display', serif;
  font-size: 2.2rem;
  color: var(--green-deep);
  line-height: 1;
}

.stat-sub {
  font-size: 0.65rem;
  color: var(--muted);
  margin-top: 0.35rem;
}

.trend-up { color: #c0392b; }
.trend-down { color: var(--green-mid); }

/* ── SECTION HEADERS ── */
.section-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 1rem;
  border-bottom: 1px solid var(--cream-dark);
  padding-bottom: 0.75rem;
}

.section-title {
  font-family: 'DM Serif Display', serif;
  font-size: 1.3rem;
  color: var(--green-deep);
}

.section-meta {
  font-size: 0.65rem;
  color: var(--muted);
  letter-spacing: 0.08em;
}

/* ── TABLE ── */
.table-wrap {
  background: var(--white);
  border: 1px solid var(--cream-dark);
  overflow-x: auto;
}

table { width: 100%; border-collapse: collapse; }

thead { background: var(--green-deep); color: var(--cream); }

th {
  padding: 0.75rem 1rem;
  font-size: 0.6rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-align: left;
  font-weight: 500;
}

td {
  padding: 0.7rem 1rem;
  font-size: 0.8rem;
  border-bottom: 1px solid var(--cream-dark);
  vertical-align: middle;
}

tr:last-child td { border-bottom: none; }
tr:hover td { background: rgba(82,183,136,0.05); }

.score-diff {
  display: inline-block;
  padding: 0.15rem 0.45rem;
  font-size: 0.7rem;
  font-weight: 500;
}

.score-diff.over { background: #fde8e8; color: #c0392b; }
.score-diff.under { background: #e8f5ee; color: var(--green-mid); }
.score-diff.even { background: var(--cream-dark); color: var(--muted); }

/* ── TREND CHART ── */
.chart-wrap {
  background: var(--white);
  border: 1px solid var(--cream-dark);
  padding: 1.5rem;
  margin-bottom: 2rem;
}

canvas { width: 100% !important; }

/* ── LOADING / EMPTY ── */
.loading {
  text-align: center;
  padding: 3rem;
  color: var(--muted);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
}

.spinner {
  display: inline-block;
  width: 18px; height: 18px;
  border: 2px solid var(--cream-dark);
  border-top-color: var(--green-mid);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  vertical-align: middle;
  margin-right: 0.5rem;
}

@keyframes spin { to { transform: rotate(360deg); } }

.empty-state {
  text-align: center;
  padding: 3rem;
  color: var(--muted);
  font-size: 0.75rem;
}

/* ── SUBTAB BUTTONS ── */
.subtab-btn {
  padding: 0.45rem 1rem;
  border: 1px solid var(--cream-dark);
  background: var(--white);
  font-family: 'DM Mono', monospace;
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
}
.subtab-btn:hover { border-color: var(--green-mid); color: var(--green-mid); }
.subtab-btn.active {
  background: var(--green-deep);
  border-color: var(--green-deep);
  color: var(--cream);
}

/* ── MEMBER FILTER ── */
.filter-row {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
  align-items: center;
  flex-wrap: wrap;
}

.filter-row input {
  padding: 0.5rem 0.9rem;
  border: 1px solid var(--cream-dark);
  background: var(--white);
  font-family: 'DM Mono', monospace;
  font-size: 0.78rem;
  color: var(--ink);
  outline: none;
  flex: 1;
  min-width: 180px;
}

.filter-row input:focus { border-color: var(--green-mid); }

.refresh-btn {
  padding: 0.5rem 1rem;
  background: var(--green-deep);
  color: var(--cream);
  border: none;
  font-family: 'DM Mono', monospace;
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background 0.2s;
  white-space: nowrap;
}

.refresh-btn:hover { background: var(--green-mid); }
.refresh-btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* ── HANDICAP PILL ── */
.hcp-pill {
  display: inline-block;
  background: var(--green-deep);
  color: var(--gold-light);
  font-family: 'DM Serif Display', serif;
  font-size: 0.95rem;
  padding: 0.15rem 0.6rem;
  letter-spacing: 0.02em;
}

/* ── FOOTER ── */
footer {
  text-align: center;
  padding: 1.5rem;
  font-size: 0.6rem;
  color: var(--muted);
  letter-spacing: 0.08em;
  border-top: 1px solid var(--cream-dark);
}

/* responsive */
@media (max-width: 600px) {
  main { padding: 1rem; }
  .login-card { padding: 2rem 1.5rem; }
  header { padding: 0 1rem; }
  .tab-bar { padding: 0 0.5rem; overflow-x: auto; }
  .tab-btn { padding: 1rem 0.75rem; white-space: nowrap; }
}