/*
 * Modern professional theme: dark collapsible left sidebar, top bar,
 * selectable color themes (data-theme on <html>, persisted client-side),
 * and Excel-style compact tables. Keeps the class names every screen
 * already uses (.card, .btn-*, .form-grid/.field, table.data-table,
 * .badge-*, .notice-*, .hub-grid/.hub-btn) so no screen markup changes.
 */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

:root {
  --ink-900: #0b1220;
  --ink-800: #111827;
  --ink-700: #1f2937;
  --ink-500: #6b7280;
  --ink-400: #9ca3af;
  --ink-200: #e5e7eb;
  --ink-100: #f1f5f9;
  --surface: #ffffff;
  --canvas: #f4f6fb;

  /* Theme-controlled accent (changed per data-theme below) */
  --brand-900: #0b1e4d;
  --brand-700: #14318f;
  --brand-600: #1d4ed8;
  --brand-500: #2563eb;
  --brand-400: #3b82f6;
  --brand-100: #dbeafe;
  --brand-50: #eff6ff;
  --accent: #06b6d4;

  /* Sidebar is always dark; the tint shifts slightly per theme */
  --sidebar-bg: #0b1220;
  --sidebar-bg-2: #111a2e;
  --sidebar-text: #cbd5e1;
  --sidebar-text-dim: #7c8aa5;
  --sidebar-active-bg: rgba(255,255,255,.08);
  --sidebar-border: rgba(255,255,255,.08);

  --success-bg: #ecfdf5; --success-fg: #047857; --success-ring: #a7f3d0;
  --warning-bg: #fffbeb; --warning-fg: #b45309; --warning-ring: #fde68a;
  --error-bg:   #fef2f2; --error-fg:   #b91c1c; --error-ring: #fecaca;
  --info-bg:    #eff6ff; --info-fg:    #1d4ed8; --info-ring: #bfdbfe;

  --radius-sm: 8px;
  --radius: 12px;
  --radius-lg: 18px;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, .06);
  --shadow: 0 4px 16px rgba(15, 23, 42, .08);
  --shadow-lg: 0 12px 32px rgba(15, 23, 42, .14);

  --sidebar-w: 268px;

  --font-header: 17px;
  --font-title: 19px;
  --font-subtitle: 16px;
  --font-content: 14.5px;
  --font-emphasis: 13.5px;
  --font-body: 13.5px;
  --font-footer: 12.5px;
  --font-mini: 10.5px;
}

/* ---------- Themes ---------- */
:root[data-theme="navy"] {
  --brand-900:#0b1e4d; --brand-700:#14318f; --brand-600:#1d4ed8; --brand-500:#2563eb; --brand-400:#3b82f6; --brand-100:#dbeafe; --brand-50:#eff6ff; --accent:#06b6d4;
  --sidebar-bg:#0b1220; --sidebar-bg-2:#111a2e;
}
:root[data-theme="slate"] {
  --brand-900:#1e293b; --brand-700:#334155; --brand-600:#475569; --brand-500:#64748b; --brand-400:#94a3b8; --brand-100:#e2e8f0; --brand-50:#f8fafc; --accent:#0ea5e9;
  --sidebar-bg:#0f172a; --sidebar-bg-2:#1e293b;
}
:root[data-theme="emerald"] {
  --brand-900:#064e3b; --brand-700:#047857; --brand-600:#059669; --brand-500:#10b981; --brand-400:#34d399; --brand-100:#d1fae5; --brand-50:#ecfdf5; --accent:#22d3ee;
  --sidebar-bg:#052e26; --sidebar-bg-2:#0a3d33;
}
:root[data-theme="royal"] {
  --brand-900:#3b0764; --brand-700:#6d28d9; --brand-600:#7c3aed; --brand-500:#8b5cf6; --brand-400:#a78bfa; --brand-100:#ede9fe; --brand-50:#f5f3ff; --accent:#f472b6;
  --sidebar-bg:#1e0a3c; --sidebar-bg-2:#2a1152;
}
:root[data-theme="crimson"] {
  --brand-900:#5b0e17; --brand-700:#9f1239; --brand-600:#be123c; --brand-500:#e11d48; --brand-400:#fb7185; --brand-100:#ffe4e6; --brand-50:#fff1f2; --accent:#f59e0b;
  --sidebar-bg:#2a0a10; --sidebar-bg-2:#3d1017;
}

* { box-sizing: border-box; }
html { -webkit-font-smoothing: antialiased; }

body {
  margin: 0;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Arial, sans-serif;
  font-size: var(--font-body);
  color: var(--ink-800);
  background: var(--canvas);
  line-height: 1.5;
}

a { color: var(--brand-600); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3 { font-weight: 700; letter-spacing: -.01em; color: var(--ink-900); }

/* ---------- Shell layout ---------- */
.app-shell { display: flex; min-height: 100vh; }

.app-content {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  margin-left: var(--sidebar-w);
}

/* ---------- Sidebar ---------- */
.app-sidebar {
  width: var(--sidebar-w);
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  background: linear-gradient(180deg, var(--sidebar-bg) 0%, var(--sidebar-bg-2) 100%);
  color: var(--sidebar-text);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  z-index: 40;
  border-right: 1px solid var(--sidebar-border);
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 20px 18px;
  border-bottom: 1px solid var(--sidebar-border);
}

.brand-mark {
  width: 30px;
  height: 30px;
  border-radius: 9px;
  background: linear-gradient(135deg, var(--accent), var(--brand-400));
  box-shadow: var(--shadow-sm);
  flex-shrink: 0;
}

.brand-name {
  font-weight: 800;
  font-size: 14.5px;
  color: #fff;
  letter-spacing: -.01em;
  line-height: 1.25;
}

.sidebar-nav { padding: 12px 10px 24px; display: flex; flex-direction: column; gap: 2px; }

.side-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  color: var(--sidebar-text);
  font-weight: 600;
  font-size: var(--font-emphasis);
  text-decoration: none;
  transition: background .12s ease, color .12s ease;
}
.side-link:hover { background: var(--sidebar-active-bg); color: #fff; text-decoration: none; }
.side-link.active { background: var(--brand-600); color: #fff; box-shadow: var(--shadow-sm); }
.side-icon { font-size: 15px; width: 18px; text-align: center; flex-shrink: 0; }

.nav-group { margin-top: 4px; }

.nav-group-toggle {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  background: transparent;
  border: none;
  color: var(--sidebar-text-dim);
  font-family: inherit;
  font-weight: 700;
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: .04em;
  cursor: pointer;
}
.nav-group-toggle:hover { background: var(--sidebar-active-bg); color: #fff; }
.nav-group-toggle .group-label { flex: 1; text-align: left; }
.nav-group-toggle .chevron { transition: transform .15s ease; font-size: 13px; }
.nav-group.open .nav-group-toggle .chevron { transform: rotate(90deg); }

.nav-group-items {
  display: none;
  flex-direction: column;
  gap: 1px;
  padding: 2px 0 4px 10px;
  border-left: 1px solid var(--sidebar-border);
  margin-left: 20px;
}
.nav-group.open .nav-group-items { display: flex; }
.nav-group-items .side-link { font-weight: 500; font-size: 13px; padding: 7px 10px; }

/* ---------- Top bar ---------- */
.app-topbar {
  background: var(--surface);
  border-bottom: 1px solid var(--ink-200);
  padding: 14px 26px;
  display: flex;
  align-items: center;
  gap: 16px;
  position: sticky;
  top: 0;
  z-index: 20;
  box-shadow: var(--shadow-sm);
}

.page-title {
  font-size: var(--font-header);
  font-weight: 800;
  margin: 0;
  color: var(--ink-900);
  flex: 1;
}

.sidebar-toggle {
  display: none;
  background: var(--ink-100);
  border: none;
  border-radius: var(--radius-sm);
  width: 36px;
  height: 36px;
  font-size: 16px;
  cursor: pointer;
  color: var(--ink-700);
}

.user-box {
  font-size: var(--font-emphasis);
  display: flex;
  align-items: center;
  gap: 14px;
  color: var(--ink-700);
}

.theme-picker { display: flex; align-items: center; gap: 6px; }
.theme-picker select {
  border: 1.5px solid var(--ink-200);
  border-radius: var(--radius-sm);
  padding: 5px 8px;
  font-size: 12.5px;
  font-family: inherit;
  background: var(--surface);
  color: var(--ink-700);
  cursor: pointer;
}

.user-name {
  font-weight: 700;
  background: var(--brand-50);
  color: var(--brand-700);
  padding: 5px 12px;
  border-radius: 999px;
  font-size: 12.5px;
}

.user-box a { color: var(--ink-500); font-weight: 600; }
.user-box a:hover { color: var(--brand-600); text-decoration: none; }

/* ---------- Content ---------- */
.app-main {
  max-width: 1320px;
  width: 100%;
  margin: 24px auto;
  padding: 0 26px 48px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--ink-200);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  padding: 22px;
  margin-bottom: 20px;
}

.card h2 {
  margin-top: 0;
  margin-bottom: 14px;
  color: var(--ink-900);
  font-size: var(--font-title);
  padding-bottom: 10px;
  border-bottom: 1px solid var(--ink-100);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  padding: 9px 16px;
  font-weight: 600;
  font-size: var(--font-content);
  cursor: pointer;
  color: var(--ink-800);
  background: var(--ink-100);
  transition: transform .06s ease, box-shadow .15s ease, background .15s ease;
  font-family: inherit;
}
.btn:hover { box-shadow: var(--shadow-sm); }
.btn:active { transform: translateY(1px); }

.btn-primary { background: var(--brand-600); color: #fff; }
.btn-primary:hover { background: var(--brand-700); }

.btn-success { background: var(--success-bg); color: var(--success-fg); border-color: var(--success-ring); }
.btn-success:hover { background: #d1fae5; }

.btn-warning { background: var(--warning-bg); color: var(--warning-fg); border-color: var(--warning-ring); }
.btn-warning:hover { background: #fef3c7; }

.btn-danger { background: var(--error-bg); color: var(--error-fg); border-color: var(--error-ring); }
.btn-danger:hover { background: #fee2e2; }

.btn-secondary { background: var(--surface); color: var(--ink-700); border-color: var(--ink-200); }
.btn-secondary:hover { background: var(--ink-100); }

/* ---------- Forms ---------- */
.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 14px 20px;
}

.field { display: flex; flex-direction: column; gap: 5px; }
.field label {
  font-weight: 700;
  color: var(--ink-700);
  text-transform: uppercase;
  letter-spacing: .03em;
  font-size: 11px;
}

.field input,
.field select,
.field textarea {
  border: 1.5px solid var(--ink-200);
  border-radius: var(--radius-sm);
  padding: 9px 11px;
  font-size: var(--font-content);
  background: var(--surface);
  color: var(--ink-800);
  font-family: inherit;
  transition: border-color .15s ease, box-shadow .15s ease;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--brand-500);
  box-shadow: 0 0 0 3px var(--brand-100);
}

.field input:disabled,
.field select:disabled { background: var(--ink-100); color: var(--ink-400); }

/* ---------- Tables: Excel-style compact grid ---------- */
.card > div[style*="overflow"],
table.data-table { }

table.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12.5px;
  font-variant-numeric: tabular-nums;
}

table.data-table th,
table.data-table td {
  border: 1px solid var(--ink-200);
}

table.data-table th {
  background: #eef1f6;
  color: var(--ink-700);
  text-align: left;
  padding: 5px 8px;
  font-weight: 700;
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: .02em;
  position: sticky;
  top: 0;
  white-space: nowrap;
}

table.data-table td {
  padding: 3px 8px;
  line-height: 1.35;
  height: 26px;
}

table.data-table tbody tr:nth-child(even) td { background: #fafbfd; }
table.data-table tr:hover td { background: var(--brand-50); }

table.data-table input,
table.data-table select {
  padding: 3px 6px;
  font-size: 12.5px;
  border: 1px solid var(--ink-200);
  border-radius: 4px;
  font-family: inherit;
}

/* ---------- Badges ---------- */
.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: var(--font-mini);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .03em;
}
.badge-success { background: var(--success-bg); color: var(--success-fg); }
.badge-warning { background: var(--warning-bg); color: var(--warning-fg); }
.badge-error   { background: var(--error-bg); color: var(--error-fg); }
.badge-info    { background: var(--info-bg); color: var(--info-fg); }

/* ---------- Notices ---------- */
.notice {
  padding: 12px 15px;
  border-radius: var(--radius-sm);
  margin-bottom: 16px;
  font-weight: 600;
  font-size: var(--font-content);
  border: 1px solid transparent;
  display: flex;
  align-items: center;
  gap: 8px;
}
.notice-success { background: var(--success-bg); color: var(--success-fg); border-color: var(--success-ring); }
.notice-warning { background: var(--warning-bg); color: var(--warning-fg); border-color: var(--warning-ring); }
.notice-error   { background: var(--error-bg); color: var(--error-fg); border-color: var(--error-ring); }

/* ---------- Footer ---------- */
.app-footer {
  text-align: center;
  color: var(--ink-400);
  font-size: var(--font-footer);
  padding: 20px;
}

/* ---------- Login ---------- */
.login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    radial-gradient(circle at 15% 20%, rgba(6,182,212,.25), transparent 40%),
    radial-gradient(circle at 85% 80%, rgba(59,130,246,.25), transparent 40%),
    linear-gradient(135deg, var(--brand-900), var(--brand-700));
  padding: 20px;
}

.login-card {
  background: rgba(255,255,255,.98);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 44px 40px;
  width: 100%;
  max-width: 420px;
  text-align: center;
}

.login-card::before {
  content: "";
  display: block;
  width: 52px;
  height: 52px;
  margin: 0 auto 18px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--accent), var(--brand-500));
  box-shadow: var(--shadow);
}

.login-card h1 {
  font-family: 'Inter', sans-serif;
  color: var(--ink-900);
  font-size: 20px;
  font-weight: 800;
  margin: 0 0 28px;
  letter-spacing: -.01em;
}

/* ---------- Home hub ---------- */
.hub-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
}

.hub-btn {
  display: flex;
  flex-direction: column;
  gap: 6px;
  text-decoration: none;
  text-align: left;
  padding: 18px 18px;
  border-radius: var(--radius);
  font-weight: 700;
  font-size: var(--font-content);
  background: var(--surface);
  border: 1px solid var(--ink-200);
  border-left: 4px solid var(--brand-500);
  color: var(--ink-900);
  box-shadow: var(--shadow-sm);
  transition: transform .12s ease, box-shadow .12s ease, border-color .12s ease;
}

.hub-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
  text-decoration: none;
  border-left-color: var(--accent);
}

.hub-btn::before {
  content: attr(data-icon);
  font-size: 20px;
  line-height: 1;
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .app-content { margin-left: 0; }
  .app-sidebar {
    transform: translateX(-100%);
    transition: transform .2s ease;
    box-shadow: var(--shadow-lg);
  }
  .app-sidebar.mobile-open { transform: translateX(0); }
  .sidebar-toggle { display: inline-flex; align-items: center; justify-content: center; }
  .user-box .user-name { display: none; }
}