*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --gold: #C9993A; --gold-light: #E8B84B; --gold-dim: #A67C2A; --gold-pale: #FFF8E7;
  --deep: #1A0F2E; --accent: #6B3FA0;
  --bg: #FAFAF8; --bg2: #F4F0E8; --card: #FFFFFF;
  --border: #E8DCC8; --text: #1A1208; --text2: #3D2E1A; --muted: #8A7560;
  --red: #D94040; --green: #2A8A54; --blue: #3B82F6;
  --shadow: rgba(26,15,46,0.10); --shadow-gold: rgba(201,153,58,0.20);
}
body { font-family: 'Be Vietnam Pro', sans-serif; background: var(--bg); color: var(--text); line-height: 1.6; min-height: 100vh; }
input, select, button, textarea { font-family: inherit; }
.btn-primary {
  background: linear-gradient(135deg, var(--gold-light), var(--gold));
  color: #fff; font-weight: 700; font-size: 1rem;
  padding: 14px 24px; border-radius: 10px; border: none; cursor: pointer;
  transition: all .2s; box-shadow: 0 4px 14px var(--shadow-gold); width: 100%;
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 24px var(--shadow-gold); }
.btn-ghost {
  background: transparent; border: 1.5px solid var(--border); color: var(--text2);
  padding: 8px 16px; border-radius: 8px; cursor: pointer; font-weight: 600; font-size: .88rem;
  transition: all .2s;
}
.btn-ghost:hover { background: var(--gold-pale); border-color: var(--gold); }

/* Auth */
.auth-wrap {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  background: linear-gradient(160deg, #FFF8E7 0%, #F0E6CC 50%, #EAD5FF 100%);
  padding: 24px;
}
.auth-card {
  background: #fff; max-width: 520px; width: 100%;
  border-radius: 24px; padding: 40px 36px;
  box-shadow: 0 24px 64px rgba(26,15,46,.12);
  border: 1px solid var(--border);
}
.auth-logo { font-size: 1.5rem; font-weight: 900; color: var(--deep); text-align: center; }
.auth-sub { text-align: center; color: var(--muted); margin-bottom: 28px; font-size: .9rem; }
.auth-tabs { display: flex; gap: 4px; background: var(--bg2); padding: 4px; border-radius: 10px; margin-bottom: 24px; }
.auth-tab {
  flex: 1; background: transparent; border: none; padding: 10px;
  font-weight: 700; color: var(--muted); cursor: pointer; border-radius: 8px;
  transition: all .15s; font-size: .92rem;
}
.auth-tab.active { background: #fff; color: var(--deep); box-shadow: 0 2px 8px var(--shadow); }

.auth-form { display: none; }
.auth-form.active { display: block; }
.auth-error { color: var(--red); font-size: .85rem; margin-top: 10px; min-height: 18px; text-align: center; }

.form-group { margin-bottom: 14px; }
.form-group label { display: block; font-size: .82rem; font-weight: 700; color: var(--text2); margin-bottom: 6px; }
.form-group label small { font-weight: 400; color: var(--muted); }
.form-group input, .form-group select {
  width: 100%; background: var(--bg); border: 1.5px solid var(--border);
  color: var(--text); font-size: .95rem; padding: 11px 14px; border-radius: 10px;
  outline: none; transition: all .2s;
}
.form-group input:focus, .form-group select:focus {
  border-color: var(--gold); background: #fff; box-shadow: 0 0 0 3px rgba(201,153,58,.12);
}
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 600px) { .form-grid { grid-template-columns: 1fr; } }

/* Dashboard */
.dash-header {
  background: #fff; border-bottom: 1px solid var(--border);
  box-shadow: 0 2px 12px var(--shadow);
  padding: 14px 5%; display: flex; align-items: center; justify-content: space-between;
  position: sticky; top: 0; z-index: 20;
}
.dash-logo { font-weight: 800; color: var(--deep); font-size: 1.05rem; }
.dash-actions { display: flex; align-items: center; gap: 12px; }
.dash-actions .link { color: var(--gold-dim); font-size: .88rem; font-weight: 600; text-decoration: none; }

.dash-main { max-width: 1180px; margin: 0 auto; padding: 24px 5% 60px; }
.dash-tabs { display: flex; gap: 8px; margin-bottom: 20px; overflow-x: auto; padding-bottom: 4px; }
.dash-tab {
  background: #fff; border: 1px solid var(--border); padding: 10px 18px;
  border-radius: 10px; font-weight: 700; color: var(--muted); cursor: pointer;
  transition: all .15s; font-size: .9rem; white-space: nowrap;
}
.dash-tab.active { background: var(--deep); color: var(--gold-light); border-color: var(--deep); }
.dash-tab:hover:not(.active) { background: var(--gold-pale); }
.dash-page { display: none; }
.dash-page.active { display: block; }

.ref-link-card {
  background: linear-gradient(135deg, #FFF8E7, #F4EDFF);
  border: 1.5px solid rgba(201,153,58,.3);
  border-radius: 16px; padding: 22px 24px; margin-bottom: 24px;
  box-shadow: 0 4px 20px var(--shadow-gold);
}
.ref-label { font-size: .85rem; color: var(--text2); font-weight: 600; margin-bottom: 10px; }
.ref-link-row { display: flex; gap: 10px; margin-bottom: 12px; }
.ref-link-row input {
  flex: 1; background: #fff; border: 1.5px solid var(--border);
  padding: 11px 14px; border-radius: 10px; font-family: monospace;
  font-weight: 600; color: var(--gold-dim); font-size: .92rem;
}
.ref-link-row .btn-primary { width: auto; padding: 11px 22px; }
.ref-meta { display: flex; gap: 24px; font-size: .85rem; color: var(--muted); }
.ref-meta strong { color: var(--gold-dim); }

.stats-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-bottom: 24px;
}
.stat {
  background: #fff; border: 1px solid var(--border); border-radius: 14px;
  padding: 18px 20px; box-shadow: 0 2px 12px var(--shadow);
  transition: transform .2s;
}
.stat:hover { transform: translateY(-2px); }
.stat.highlight { border-color: var(--gold); background: var(--gold-pale); }
.stat.highlight2 { border-color: var(--blue); background: #EFF6FF; }
.stat.highlight3 { border-color: var(--green); background: #ECFDF5; }
.stat-icon { font-size: 1.5rem; margin-bottom: 8px; }
.stat-val { font-size: 1.6rem; font-weight: 900; color: var(--deep); }
.stat-lbl { font-size: .82rem; color: var(--muted); font-weight: 500; margin-top: 2px; }

.chart-card, .card {
  background: #fff; border: 1px solid var(--border); border-radius: 16px;
  padding: 24px; box-shadow: 0 2px 12px var(--shadow); margin-bottom: 20px;
}
.chart-card h3, .card h3 { font-size: 1rem; font-weight: 800; color: var(--deep); margin-bottom: 16px; }

.card-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; flex-wrap: wrap; gap: 10px; }
.card-head select {
  background: var(--bg); border: 1.5px solid var(--border); padding: 9px 14px;
  border-radius: 8px; font-size: .88rem; cursor: pointer;
}

.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: 12px; }
table { width: 100%; border-collapse: collapse; min-width: 720px; }
th { background: var(--bg2); text-align: left; padding: 12px 14px; font-size: .8rem; color: var(--muted); font-weight: 700; text-transform: uppercase; letter-spacing: .5px; }
td { padding: 13px 14px; border-top: 1px solid var(--border); font-size: .9rem; color: var(--text2); }
tr:hover td { background: var(--gold-pale); }
td.muted { text-align: center; color: var(--muted); padding: 32px; }

.badge { display: inline-block; padding: 3px 10px; border-radius: 50px; font-size: .75rem; font-weight: 700; }
.badge.pending { background: #FEF3C7; color: #92400E; }
.badge.paid { background: #DBEAFE; color: #1E40AF; }
.badge.confirmed { background: #E0E7FF; color: #3730A3; }
.badge.shipping { background: #FCE7F3; color: #9D174D; }
.badge.delivered { background: #D1FAE5; color: #065F46; }
.badge.cancelled { background: #FEE2E2; color: #991B1B; }
.badge.approved { background: #D1FAE5; color: #065F46; }

.paginator { display: flex; justify-content: center; gap: 6px; margin-top: 16px; flex-wrap: wrap; }
.paginator button {
  background: #fff; border: 1px solid var(--border); padding: 6px 12px;
  border-radius: 6px; cursor: pointer; font-size: .85rem;
}
.paginator button.active { background: var(--gold); color: #fff; border-color: var(--gold); }

.toast {
  position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%) translateY(20px);
  background: #fff; border: 1.5px solid var(--green); color: var(--green);
  padding: 12px 22px; border-radius: 50px; font-size: .9rem; font-weight: 700;
  z-index: 999; opacity: 0; transition: all .3s; pointer-events: none;
  box-shadow: 0 8px 24px rgba(42,138,84,.15);
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
.toast.error { border-color: var(--red); color: var(--red); }

@media (max-width: 700px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .ref-link-row { flex-direction: column; }
  .ref-link-row .btn-primary { width: 100%; }
  .auth-card { padding: 28px 22px; }
}

/* ── Date filter bar ── */
.date-filter-bar {
  background: #fff; border: 1px solid var(--border);
  border-radius: 12px; padding: 12px 14px; margin-bottom: 16px;
  display: flex; gap: 8px; align-items: center; flex-wrap: wrap;
  box-shadow: 0 2px 8px var(--shadow);
}
.date-filter-bar .label { font-size: .82rem; color: var(--muted); margin-right: 4px; font-weight: 600; }
.date-filter-bar .preset-btn {
  background: var(--bg2); border: 1px solid var(--border); color: var(--text2);
  padding: 6px 14px; border-radius: 50px; font-size: .82rem; cursor: pointer;
  transition: all .15s; font-weight: 600;
}
.date-filter-bar .preset-btn:hover { background: var(--gold-pale); border-color: var(--gold); }
.date-filter-bar .preset-btn.active {
  background: linear-gradient(135deg, var(--gold-light), var(--gold));
  color: #fff; border-color: var(--gold); font-weight: 700;
}
.date-filter-bar input[type=date] {
  background: var(--bg); border: 1.5px solid var(--border); color: var(--text);
  padding: 6px 10px; border-radius: 8px; font-size: .82rem; font-family: inherit;
}
.date-filter-bar .range-info { font-size: .8rem; color: var(--gold-dim); margin-left: auto; font-weight: 600; }

@media (max-width: 600px) {
  .date-filter-bar { flex-direction: column; align-items: stretch; }
  .date-filter-bar .preset-btn { font-size: .78rem; padding: 6px 10px; }
}