@import url('https://fonts.googleapis.com/css2?family=DM+Serif+Display:ital@0;1&family=DM+Mono:wght@300;400;500&display=swap');

:root {
  --ink: #0F0F14;
  --ink-2: #1C1C24;
  --ink-3: #28282F;
  --gold: #D4A843;
  --gold-dim: #8A6B26;
  --cream: #F5F0E8;
  --cream-2: #EDE8DE;
  --muted: #6B6B78;
  --muted-2: #48484F;
  --green: #2A7A4B;
  --green-bg: #0E2B1A;
  --amber: #B87333;
  --amber-bg: #2B1A0A;
  --red: #A03030;
  --red-bg: #2B0E0E;
  --blue: #2A5A8A;
  --blue-bg: #0A1E30;
  --r: 10px;
  --r-lg: 16px;
  --shadow: 0 2px 12px rgba(0,0,0,0.4);
}

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

html { height: 100%; }

body {
  font-family: 'DM Mono', monospace;
  background: var(--ink);
  color: var(--cream);
  min-height: 100%;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: var(--ink-2); }
::-webkit-scrollbar-thumb { background: var(--ink-3); border-radius: 2px; }

/* ── Layout ── */
#app { display: flex; min-height: 100vh; }

.sidebar {
  width: 240px;
  background: var(--ink-2);
  border-right: 1px solid var(--ink-3);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  z-index: 100;
  transition: transform 0.3s ease;
}

.sidebar-logo {
  padding: 24px 20px 20px;
  border-bottom: 1px solid var(--ink-3);
}
.sidebar-logo .wordmark {
  font-family: 'DM Serif Display', serif;
  font-size: 20px;
  color: var(--gold);
  letter-spacing: -0.3px;
}
.sidebar-logo .tagline {
  font-size: 10px;
  color: var(--muted);
  margin-top: 3px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.sidebar-nav { flex: 1; padding: 16px 0; overflow-y: auto; }

.nav-section-label {
  font-size: 9px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted-2);
  padding: 12px 20px 6px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 20px;
  color: var(--muted);
  font-size: 12px;
  cursor: pointer;
  transition: all 0.15s;
  border-left: 2px solid transparent;
  position: relative;
}
.nav-item:hover { color: var(--cream); background: var(--ink-3); }
.nav-item.active {
  color: var(--gold);
  background: rgba(212,168,67,0.06);
  border-left-color: var(--gold);
}
.nav-item svg { width: 16px; height: 16px; flex-shrink: 0; }
.nav-badge {
  margin-left: auto;
  background: var(--gold);
  color: var(--ink);
  font-size: 9px;
  font-weight: 500;
  padding: 1px 6px;
  border-radius: 10px;
}

.sidebar-footer {
  padding: 16px 20px;
  border-top: 1px solid var(--ink-3);
}
.user-row {
  display: flex;
  align-items: center;
  gap: 10px;
}
.user-avatar {
  width: 32px; height: 32px;
  border-radius: 50%;
  background: var(--gold);
  display: flex; align-items: center; justify-content: center;
  font-size: 11px; font-weight: 500;
  color: var(--ink);
  flex-shrink: 0;
}
.user-name { font-size: 12px; color: var(--cream); }
.user-plan { font-size: 10px; color: var(--muted); }

/* ── Main content ── */
.main {
  margin-left: 240px;
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.topbar {
  background: var(--ink);
  border-bottom: 1px solid var(--ink-3);
  padding: 0 28px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 50;
}

.topbar-left { display: flex; align-items: center; gap: 12px; }
.page-title { font-family: 'DM Serif Display', serif; font-size: 18px; color: var(--cream); }
.topbar-search {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--ink-2);
  border: 1px solid var(--ink-3);
  border-radius: var(--r);
  padding: 7px 14px;
  width: 260px;
}
.topbar-search input {
  background: none;
  border: none;
  outline: none;
  color: var(--cream);
  font-family: 'DM Mono', monospace;
  font-size: 12px;
  width: 100%;
}
.topbar-search input::placeholder { color: var(--muted); }
.topbar-search svg { width: 14px; height: 14px; color: var(--muted); flex-shrink: 0; }

.topbar-right { display: flex; align-items: center; gap: 10px; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: var(--r);
  font-family: 'DM Mono', monospace;
  font-size: 12px;
  cursor: pointer;
  transition: all 0.15s;
  border: none;
  text-decoration: none;
}
.btn-primary {
  background: var(--gold);
  color: var(--ink);
  font-weight: 500;
}
.btn-primary:hover { background: #E8BF58; }
.btn-ghost {
  background: var(--ink-2);
  color: var(--cream);
  border: 1px solid var(--ink-3);
}
.btn-ghost:hover { border-color: var(--muted-2); }
.btn-danger {
  background: var(--red-bg);
  color: #F08080;
  border: 1px solid var(--red);
}
.btn-danger:hover { background: #3D1010; }
.btn svg { width: 14px; height: 14px; }

/* ── Page content ── */
.page { display: none; padding: 28px; }
.page.active { display: block; }

/* ── Stats row ── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 28px;
}
.stat-card {
  background: var(--ink-2);
  border: 1px solid var(--ink-3);
  border-radius: var(--r-lg);
  padding: 20px;
  position: relative;
  overflow: hidden;
}
.stat-card::before {
  content: '';
  position: absolute;
  top: 0; right: 0;
  width: 60px; height: 60px;
  border-radius: 0 var(--r-lg) 0 60px;
  opacity: 0.06;
}
.stat-card.gold::before { background: var(--gold); }
.stat-card.green::before { background: #2A7A4B; }
.stat-card.amber::before { background: var(--amber); }
.stat-card.blue::before { background: #2A5A8A; }

.stat-icon {
  width: 36px; height: 36px;
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 14px;
}
.stat-icon.gold { background: rgba(212,168,67,0.12); color: var(--gold); }
.stat-icon.green { background: var(--green-bg); color: #5CC98A; }
.stat-icon.amber { background: var(--amber-bg); color: #E8A050; }
.stat-icon.blue { background: var(--blue-bg); color: #5090C8; }
.stat-icon svg { width: 18px; height: 18px; }

.stat-value {
  font-family: 'DM Serif Display', serif;
  font-size: 26px;
  color: var(--cream);
  line-height: 1;
  margin-bottom: 4px;
}
.stat-label { font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.06em; }
.stat-delta { font-size: 10px; margin-top: 8px; }
.stat-delta.up { color: #5CC98A; }
.stat-delta.down { color: #F08080; }

/* ── Month filter ── */
.filter-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}
.filter-label { font-size: 11px; color: var(--muted); margin-right: 4px; text-transform: uppercase; letter-spacing: 0.06em; }
.month-chip {
  padding: 6px 16px;
  border-radius: 20px;
  font-family: 'DM Mono', monospace;
  font-size: 11px;
  cursor: pointer;
  transition: all 0.15s;
  border: 1px solid var(--ink-3);
  background: var(--ink-2);
  color: var(--muted);
}
.month-chip:hover { border-color: var(--muted-2); color: var(--cream); }
.month-chip.active { background: rgba(212,168,67,0.1); border-color: var(--gold-dim); color: var(--gold); }
.filter-spacer { flex: 1; }

/* ── Table ── */
.table-wrap {
  background: var(--ink-2);
  border: 1px solid var(--ink-3);
  border-radius: var(--r-lg);
  overflow: hidden;
}
.table-header {
  display: flex;
  align-items: center;
  padding: 14px 20px;
  border-bottom: 1px solid var(--ink-3);
  justify-content: space-between;
}
.table-title { font-size: 13px; color: var(--cream); font-weight: 500; }
.table-count { font-size: 11px; color: var(--muted); }

table { width: 100%; border-collapse: collapse; }
thead tr { border-bottom: 1px solid var(--ink-3); }
thead th {
  padding: 10px 20px;
  text-align: left;
  font-size: 10px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 400;
}
tbody tr {
  border-bottom: 1px solid rgba(255,255,255,0.04);
  transition: background 0.12s;
  cursor: pointer;
}
tbody tr:last-child { border-bottom: none; }
tbody tr:hover { background: rgba(255,255,255,0.03); }
td { padding: 14px 20px; font-size: 12px; color: var(--cream-2); vertical-align: middle; }

.td-thumb {
  width: 38px; height: 38px;
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}
.td-name { font-size: 13px; color: var(--cream); font-weight: 500; }
.td-sub { font-size: 11px; color: var(--muted); margin-top: 2px; }

.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 9px;
  border-radius: 6px;
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.02em;
}
.badge-green { background: var(--green-bg); color: #5CC98A; border: 1px solid rgba(42,122,75,0.4); }
.badge-amber { background: var(--amber-bg); color: #E8A050; border: 1px solid rgba(184,115,51,0.4); }
.badge-red   { background: var(--red-bg);   color: #F08080; border: 1px solid rgba(160,48,48,0.4); }
.badge-blue  { background: var(--blue-bg);  color: #5090C8; border: 1px solid rgba(42,90,138,0.4); }
.badge-muted { background: var(--ink-3); color: var(--muted); border: 1px solid rgba(255,255,255,0.08); }

.td-amount { font-family: 'DM Mono', monospace; font-size: 13px; color: var(--cream); }
.td-actions { display: flex; gap: 6px; opacity: 0; transition: opacity 0.15s; }
tbody tr:hover .td-actions { opacity: 1; }
.icon-btn {
  width: 28px; height: 28px;
  border-radius: 6px;
  background: var(--ink-3);
  border: none;
  color: var(--muted);
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  transition: all 0.12s;
}
.icon-btn:hover { background: var(--ink); color: var(--cream); }
.icon-btn.danger:hover { background: var(--red-bg); color: #F08080; }
.icon-btn svg { width: 13px; height: 13px; }

/* ── Empty state ── */
.empty-state {
  text-align: center;
  padding: 60px 20px;
}
.empty-icon {
  width: 64px; height: 64px;
  border-radius: 16px;
  background: var(--ink-3);
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 20px;
}
.empty-icon svg { width: 28px; height: 28px; color: var(--muted); }
.empty-title { font-family: 'DM Serif Display', serif; font-size: 18px; color: var(--cream); margin-bottom: 8px; }
.empty-sub { font-size: 12px; color: var(--muted); }

/* ── Modal ── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
}
.modal-overlay.open { opacity: 1; pointer-events: all; }
.modal {
  background: var(--ink-2);
  border: 1px solid var(--ink-3);
  border-radius: var(--r-lg);
  width: 100%;
  max-width: 540px;
  max-height: 90vh;
  overflow-y: auto;
  transform: translateY(16px);
  transition: transform 0.2s;
}
.modal-overlay.open .modal { transform: translateY(0); }
.modal-head {
  padding: 20px 24px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.modal-title { font-family: 'DM Serif Display', serif; font-size: 20px; color: var(--cream); }
.modal-body { padding: 20px 24px 24px; }

/* Upload area */
.upload-zone {
  border: 2px dashed var(--ink-3);
  border-radius: var(--r-lg);
  padding: 40px 20px;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s;
  margin-bottom: 20px;
  position: relative;
}
.upload-zone:hover, .upload-zone.drag { border-color: var(--gold-dim); background: rgba(212,168,67,0.04); }
.upload-zone input { position: absolute; inset: 0; opacity: 0; cursor: pointer; }
.upload-icon { font-size: 36px; margin-bottom: 12px; }
.upload-title { font-size: 14px; color: var(--cream); margin-bottom: 4px; }
.upload-sub { font-size: 11px; color: var(--muted); }

.upload-preview {
  display: none;
  align-items: center;
  gap: 12px;
  background: var(--ink-3);
  border-radius: var(--r);
  padding: 12px 16px;
  margin-bottom: 20px;
}
.upload-preview.show { display: flex; }
.preview-icon { font-size: 28px; }
.preview-info .name { font-size: 13px; color: var(--cream); }
.preview-info .size { font-size: 11px; color: var(--muted); margin-top: 2px; }

/* Form */
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-bottom: 14px; }
.form-group { display: flex; flex-direction: column; gap: 6px; margin-bottom: 14px; }
.form-label { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted); }
.form-input, .form-select {
  background: var(--ink-3);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--r);
  padding: 10px 14px;
  color: var(--cream);
  font-family: 'DM Mono', monospace;
  font-size: 12px;
  outline: none;
  transition: border-color 0.15s;
  width: 100%;
}
.form-input:focus, .form-select:focus { border-color: var(--gold-dim); }
.form-input::placeholder { color: var(--muted); }
.form-select option { background: var(--ink-2); }
.form-footer { display: flex; gap: 10px; justify-content: flex-end; margin-top: 20px; padding-top: 20px; border-top: 1px solid var(--ink-3); }

/* Download page */
.dl-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.dl-card {
  background: var(--ink-2);
  border: 1px solid var(--ink-3);
  border-radius: var(--r-lg);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: border-color 0.15s;
}
.dl-card:hover { border-color: var(--muted-2); }
.dl-month { font-family: 'DM Serif Display', serif; font-size: 18px; color: var(--cream); }
.dl-year { font-size: 10px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.08em; }
.dl-stats { display: flex; gap: 16px; }
.dl-stat .val { font-size: 14px; color: var(--gold); font-weight: 500; }
.dl-stat .lbl { font-size: 10px; color: var(--muted); margin-top: 1px; }
.dl-actions { display: flex; gap: 8px; }

/* Notification toast */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--ink-2);
  border: 1px solid var(--ink-3);
  border-left: 3px solid var(--gold);
  border-radius: var(--r);
  padding: 12px 18px;
  font-size: 12px;
  color: var(--cream);
  z-index: 999;
  transform: translateY(80px);
  opacity: 0;
  transition: all 0.3s ease;
  max-width: 300px;
}
.toast.show { transform: translateY(0); opacity: 1; }
.toast.success { border-left-color: #2A7A4B; }
.toast.error { border-left-color: var(--red); }

/* ── Mobile hamburger ── */
.hamburger { display: none; background: none; border: none; cursor: pointer; color: var(--cream); padding: 4px; }
.hamburger svg { width: 22px; height: 22px; }
.sidebar-overlay { display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.6); z-index: 99; }

/* ── Charts page ── */
.chart-grid { display: grid; grid-template-columns: 2fr 1fr; gap: 20px; margin-bottom: 20px; }
.chart-card {
  background: var(--ink-2);
  border: 1px solid var(--ink-3);
  border-radius: var(--r-lg);
  padding: 20px;
}
.chart-card-title { font-size: 12px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted); margin-bottom: 20px; }
.bar-chart { display: flex; align-items: flex-end; gap: 8px; height: 160px; }
.bar-col { display: flex; flex-direction: column; align-items: center; gap: 6px; flex: 1; }
.bar-label { font-size: 9px; color: var(--muted); text-transform: uppercase; }
.bar-val { font-size: 9px; color: var(--gold); }
.bar {
  width: 100%;
  background: var(--ink-3);
  border-radius: 4px 4px 0 0;
  position: relative;
  transition: background 0.15s;
  cursor: pointer;
}
.bar:hover { background: rgba(212,168,67,0.2); }
.bar-fill {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  background: linear-gradient(to top, var(--gold), var(--gold-dim));
  border-radius: 4px 4px 0 0;
  transition: height 0.6s cubic-bezier(0.34,1.56,0.64,1);
}

.donut-wrap { display: flex; flex-direction: column; align-items: center; gap: 16px; }
.donut-legend { width: 100%; display: flex; flex-direction: column; gap: 8px; }
.legend-item { display: flex; align-items: center; gap: 8px; font-size: 11px; color: var(--muted); }
.legend-dot { width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0; }
.legend-val { margin-left: auto; color: var(--cream); font-size: 11px; }

/* ── Responsive ── */
@media (max-width: 900px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); }
  .sidebar-overlay.open { display: block; }
  .main { margin-left: 0; }
  .hamburger { display: flex; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .dl-grid { grid-template-columns: repeat(2, 1fr); }
  .chart-grid { grid-template-columns: 1fr; }
  .topbar-search { width: 180px; }
}
@media (max-width: 600px) {
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .dl-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .topbar-search { display: none; }
  .page { padding: 16px; }
}