/* ═══════════════════════════════════════════════════════════════════════════
   DigitalERP — Dual Theme (Light default + Dark toggle)
   ═══════════════════════════════════════════════════════════════════════════ */

/* ── LIGHT THEME (Default) ─────────────────────────────────────────────── */
:root {
  --bg-base:       #f0f2f5;
  --bg-surface:    #ffffff;
  --bg-elevated:   #f8f9fa;
  --bg-hover:      #e9ecef;
  --bg-active:     #dbeafe;
  --bg-card:       #ffffff;

  --accent:        #2563eb;
  --accent-dim:    rgba(37, 99, 235, 0.08);
  --accent-glow:   rgba(37, 99, 235, 0.15);
  --accent-2:      #ea580c;
  --accent-3:      #7c3aed;
  --green:         #16a34a;
  --green-dim:     rgba(22, 163, 74, 0.08);
  --red:           #dc2626;
  --red-dim:       rgba(220, 38, 38, 0.08);
  --amber:         #d97706;
  --amber-dim:     rgba(217, 119, 6, 0.08);

  --text-primary:  #1a1a2e;
  --text-secondary:#475569;
  --text-muted:    #94a3b8;
  --text-accent:   #2563eb;

  --border:        #e2e8f0;
  --border-strong: #cbd5e1;
  --border-subtle: #e2e8f0;

  --sidebar-w:     260px;
  --topbar-h:      60px;

  --radius-sm:     6px;
  --radius:        10px;
  --radius-lg:     16px;
  --shadow:        0 1px 3px rgba(0,0,0,0.08), 0 4px 12px rgba(0,0,0,0.04);
  --shadow-glow:   0 0 12px rgba(37, 99, 235, 0.08);

  --font-sans:     'Space Grotesk', sans-serif;
  --font-mono:     'JetBrains Mono', monospace;
}

/* ── DARK THEME ────────────────────────────────────────────────────────── */
[data-theme="dark"] {
  --bg-base:       #0a0c10;
  --bg-surface:    #10141c;
  --bg-elevated:   #161b26;
  --bg-hover:      #1d2433;
  --bg-active:     #1e2d45;
  --bg-card:       #10141c;

  --accent:        #00d4ff;
  --accent-dim:    rgba(0, 212, 255, 0.12);
  --accent-glow:   rgba(0, 212, 255, 0.25);
  --accent-2:      #ff6b35;
  --accent-3:      #7c3aed;
  --green:         #22c55e;
  --green-dim:     rgba(34, 197, 94, 0.12);
  --red:           #ef4444;
  --red-dim:       rgba(239, 68, 68, 0.12);
  --amber:         #f59e0b;
  --amber-dim:     rgba(245, 158, 11, 0.12);

  --text-primary:  #e8eaf0;
  --text-secondary:#8b92a5;
  --text-muted:    #4a5165;
  --text-accent:   #00d4ff;

  --border:        rgba(255,255,255,0.06);
  --border-strong: rgba(255,255,255,0.12);
  --border-subtle: rgba(255,255,255,0.06);

  --shadow:        0 4px 24px rgba(0,0,0,0.4);
  --shadow-glow:   0 0 20px rgba(0, 212, 255, 0.15);
}

/* ── RESET & BASE ───────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  background: var(--bg-base);
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  overflow-x: hidden;
  transition: background 0.3s, color 0.3s;
}

/* ── SIDEBAR ────────────────────────────────────────────────────────────── */
.sidebar {
  width: var(--sidebar-w);
  min-height: 100vh;
  background: var(--bg-surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  z-index: 100;
  transition: transform 0.3s ease, background 0.3s;
  overflow-y: auto;
  overflow-x: hidden;
}
.sidebar::-webkit-scrollbar { width: 4px; }
.sidebar::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 4px; }

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 20px 20px 16px;
  border-bottom: 1px solid var(--border);
}
.brand-icon {
  width: 38px; height: 38px;
  background: var(--accent-dim);
  border: 1px solid rgba(37,99,235,0.2);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-size: 16px;
  box-shadow: var(--shadow-glow);
}
[data-theme="dark"] .brand-icon { border-color: rgba(0,212,255,0.3); }
.brand-name { display: block; font-weight: 700; font-size: 15px; letter-spacing: 0.5px; }
.brand-version { display: block; font-size: 10px; color: var(--text-muted); font-family: var(--font-mono); }

.sidebar-nav { flex: 1; padding: 16px 12px; }
.nav-section-label {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 1.5px;
  color: var(--text-muted);
  padding: 12px 10px 6px;
}
.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 13.5px;
  font-weight: 500;
  transition: all 0.18s ease;
  margin-bottom: 2px;
}
.nav-item i { width: 18px; text-align: center; font-size: 13px; flex-shrink: 0; }
.nav-item:hover { background: var(--bg-hover); color: var(--text-primary); }
.nav-item.active {
  background: var(--bg-active);
  color: var(--accent);
  border-left: 3px solid var(--accent);
  padding-left: 9px;
}
.nav-item.active i { color: var(--accent); }

.sidebar-footer {
  padding: 14px 16px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 10px;
}
.user-info { display: flex; align-items: center; gap: 10px; flex: 1; min-width: 0; }
.user-avatar {
  width: 34px; height: 34px;
  background: var(--accent-dim);
  border: 1px solid rgba(37,99,235,0.2);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: var(--accent);
  font-size: 13px;
  font-weight: 700;
  flex-shrink: 0;
}
[data-theme="dark"] .user-avatar { border-color: rgba(0,212,255,0.3); }
.user-meta { min-width: 0; }
.user-name { display: block; font-size: 12.5px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.user-role { display: block; font-size: 10.5px; color: var(--text-muted); }
.logout-btn {
  width: 32px; height: 32px;
  border-radius: var(--radius-sm);
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
  font-size: 13px;
}
.logout-btn:hover { background: var(--red-dim); color: var(--red); border-color: rgba(220,38,38,0.3); }

/* ── MAIN WRAPPER ───────────────────────────────────────────────────────── */
.main-wrapper {
  margin-left: var(--sidebar-w);
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* ── TOPBAR ─────────────────────────────────────────────────────────────── */
.topbar {
  height: var(--topbar-h);
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 24px;
  gap: 16px;
  position: sticky;
  top: 0;
  z-index: 90;
  transition: background 0.3s;
}
.sidebar-toggle {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 16px;
  cursor: pointer;
  padding: 6px;
  border-radius: var(--radius-sm);
  transition: color 0.2s;
  display: none;
}
.sidebar-toggle:hover { color: var(--text-primary); }
.page-breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 13px; flex: 1; }
.breadcrumb-app { color: var(--text-muted); }
.sep { font-size: 9px; color: var(--text-muted); }
.breadcrumb-page { font-weight: 600; color: var(--text-primary); }
.topbar-right { display: flex; align-items: center; gap: 12px; margin-left: auto; }
.topbar-date { font-size: 12px; color: var(--text-secondary); font-family: var(--font-mono); display: flex; align-items: center; gap: 6px; }
.topbar-btn {
  width: 34px; height: 34px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  position: relative;
  transition: all 0.2s;
  font-size: 14px;
}
.topbar-btn:hover { color: var(--text-primary); border-color: var(--border-strong); }
.badge {
  position: absolute;
  top: 4px; right: 4px;
  width: 14px; height: 14px;
  background: var(--accent-2);
  border-radius: 50%;
  font-size: 8px;
  font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  color: white;
}

/* ── THEME TOGGLE BUTTON ───────────────────────────────────────────────── */
.theme-toggle {
  width: 34px; height: 34px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: all 0.2s;
  font-size: 14px;
}
.theme-toggle:hover { color: var(--accent); border-color: var(--accent); }

/* ── ALERTS ─────────────────────────────────────────────────────────────── */
.alert-banner {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 24px;
  font-size: 13.5px;
  font-weight: 500;
}
.alert-banner.success { background: var(--green-dim); color: var(--green); border-bottom: 1px solid rgba(22,163,74,0.15); }
.alert-banner.error { background: var(--red-dim); color: var(--red); border-bottom: 1px solid rgba(220,38,38,0.15); }
.alert-close { margin-left: auto; background: none; border: none; color: inherit; cursor: pointer; font-size: 14px; opacity: 0.7; }
.alert-close:hover { opacity: 1; }

/* ── PAGE CONTENT ───────────────────────────────────────────────────────── */
.page-content { padding: 28px; flex: 1; }
.page-header { margin-bottom: 28px; }
.page-title { font-size: 22px; font-weight: 700; letter-spacing: -0.3px; margin-bottom: 4px; }
.page-subtitle { font-size: 13px; color: var(--text-secondary); }

/* ── CARDS ──────────────────────────────────────────────────────────────── */
.card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.card-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
}
.card-title { font-size: 14px; font-weight: 600; }
.card-body { padding: 20px; }

/* ── KPI TILES ──────────────────────────────────────────────────────────── */
.kpi-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; margin-bottom: 24px; }
.kpi-tile {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  position: relative;
  overflow: hidden;
  transition: transform 0.2s, border-color 0.2s;
}
.kpi-tile:hover { transform: translateY(-2px); border-color: var(--border-strong); }
.kpi-tile::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; }
.kpi-tile.cyan::before   { background: var(--accent); }
.kpi-tile.orange::before { background: var(--accent-2); }
.kpi-tile.purple::before { background: var(--accent-3); }
.kpi-tile.green::before  { background: var(--green); }
.kpi-icon {
  width: 42px; height: 42px;
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  font-size: 18px; margin-bottom: 16px;
}
.kpi-tile.cyan   .kpi-icon { background: var(--accent-dim); color: var(--accent); }
.kpi-tile.orange .kpi-icon { background: rgba(234,88,12,0.08); color: var(--accent-2); }
.kpi-tile.purple .kpi-icon { background: rgba(124,58,237,0.08); color: var(--accent-3); }
.kpi-tile.green  .kpi-icon { background: var(--green-dim); color: var(--green); }
.kpi-value { font-size: 26px; font-weight: 700; font-family: var(--font-mono); letter-spacing: -1px; margin-bottom: 4px; }
.kpi-label { font-size: 12px; color: var(--text-secondary); }
.kpi-trend { font-size: 11px; font-weight: 600; margin-top: 8px; display: flex; align-items: center; gap: 4px; }
.kpi-trend.up { color: var(--green); }
.kpi-trend.down { color: var(--red); }

/* ── TABLES ─────────────────────────────────────────────────────────────── */
.table-wrapper { overflow-x: auto; }
.data-table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.data-table th {
  padding: 11px 16px; text-align: left; font-size: 11px; font-weight: 600;
  letter-spacing: 0.8px; color: var(--text-muted); text-transform: uppercase;
  background: var(--bg-elevated); border-bottom: 1px solid var(--border); white-space: nowrap;
}
.data-table td {
  padding: 12px 16px; border-bottom: 1px solid var(--border);
  color: var(--text-secondary); vertical-align: middle;
}
.data-table tr:last-child td { border-bottom: none; }
.data-table tr:hover td { background: var(--bg-hover); color: var(--text-primary); }
.data-table .font-mono { font-family: var(--font-mono); font-size: 12px; }
.data-table .text-primary-col { color: var(--text-primary); font-weight: 500; }

/* ── STATUS BADGES ──────────────────────────────────────────────────────── */
.badge-status {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 3px 10px; border-radius: 20px; font-size: 11px; font-weight: 600; white-space: nowrap;
}
.badge-status::before { content: ''; width: 5px; height: 5px; border-radius: 50%; background: currentColor; }
.badge-status.active, .badge-status.paid, .badge-status.approved, .badge-status.received { color: var(--green); background: var(--green-dim); }
.badge-status.inactive, .badge-status.unpaid, .badge-status.rejected, .badge-status.cancelled { color: var(--red); background: var(--red-dim); }
.badge-status.pending, .badge-status.partial, .badge-status.draft { color: var(--amber); background: var(--amber-dim); }
.badge-status.processing { color: var(--accent); background: var(--accent-dim); }

/* ── FORMS ──────────────────────────────────────────────────────────────── */
.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 20px; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group.span-2 { grid-column: span 2; }
.form-group.span-full { grid-column: 1 / -1; }
label { font-size: 12px; font-weight: 600; color: var(--text-secondary); letter-spacing: 0.3px; }
.form-control {
  background: var(--bg-elevated);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 13.5px;
  transition: border-color 0.2s, box-shadow 0.2s;
  width: 100%;
}
.form-control:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-glow); }
.form-control::placeholder { color: var(--text-muted); }
select.form-control option { background: var(--bg-surface); color: var(--text-primary); }

/* ── BUTTONS ────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 9px 18px; border-radius: var(--radius-sm);
  font-family: var(--font-sans); font-size: 13px; font-weight: 600;
  cursor: pointer; transition: all 0.2s; border: 1px solid transparent;
  text-decoration: none; white-space: nowrap;
}
.btn-primary { background: var(--accent); color: #ffffff; border-color: var(--accent); }
.btn-primary:hover { filter: brightness(1.1); }
[data-theme="dark"] .btn-primary { color: #0a0c10; }
.btn-secondary { background: var(--bg-elevated); color: var(--text-primary); border-color: var(--border-strong); }
.btn-secondary:hover { border-color: var(--accent); color: var(--accent); }
.btn-danger { background: var(--red-dim); color: var(--red); border-color: rgba(220,38,38,0.2); }
.btn-danger:hover { background: var(--red); color: white; }
.btn-success { background: var(--green-dim); color: var(--green); border-color: rgba(22,163,74,0.2); }
.btn-success:hover { background: var(--green); color: white; }
.btn-sm { padding: 5px 12px; font-size: 12px; }
.btn-icon { padding: 8px; }

/* ── TOOLBAR ────────────────────────────────────────────────────────────── */
.toolbar { display: flex; align-items: center; gap: 10px; margin-bottom: 20px; flex-wrap: wrap; }
.search-box { position: relative; flex: 1; min-width: 200px; max-width: 340px; }
.search-box i { position: absolute; left: 12px; top: 50%; transform: translateY(-50%); color: var(--text-muted); font-size: 13px; }
.search-box input { padding-left: 36px !important; }

/* ── CHARTS ─────────────────────────────────────────────────────────────── */
.chart-container { position: relative; }
.dashboard-grid { display: grid; grid-template-columns: 2fr 1fr; gap: 20px; margin-top: 24px; }

/* ── LOGIN PAGE ─────────────────────────────────────────────────────────── */
.login-page {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  background: var(--bg-base); position: relative; overflow: hidden;
}
.login-bg-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(37,99,235,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(37,99,235,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
}
[data-theme="dark"] .login-bg-grid {
  background-image:
    linear-gradient(rgba(0,212,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,212,255,0.03) 1px, transparent 1px);
}
.login-bg-glow {
  position: absolute; width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(37,99,235,0.06) 0%, transparent 70%);
  top: 50%; left: 50%; transform: translate(-50%, -50%);
}
[data-theme="dark"] .login-bg-glow {
  background: radial-gradient(circle, rgba(0,212,255,0.06) 0%, transparent 70%);
}
.login-card {
  width: 420px; background: var(--bg-surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 48px 40px;
  position: relative; z-index: 1; box-shadow: var(--shadow);
}
.login-header { text-align: center; margin-bottom: 36px; }
.login-logo {
  width: 56px; height: 56px; background: var(--accent-dim);
  border: 1px solid rgba(37,99,235,0.2); border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  font-size: 24px; color: var(--accent); margin: 0 auto 16px; box-shadow: var(--shadow-glow);
}
[data-theme="dark"] .login-logo { border-color: rgba(0,212,255,0.3); }
.login-title { font-size: 22px; font-weight: 700; margin-bottom: 6px; }
.login-subtitle { font-size: 13px; color: var(--text-secondary); }
.login-error {
  background: var(--red-dim); border: 1px solid rgba(220,38,38,0.15);
  border-radius: var(--radius-sm); padding: 10px 14px; font-size: 13px;
  color: var(--red); margin-bottom: 20px; display: flex; align-items: center; gap: 8px;
}
.checkbox-row { display: flex; align-items: center; gap: 8px; margin-top: 4px; }
.checkbox-row input[type="checkbox"] { accent-color: var(--accent); }
.checkbox-row label { font-size: 13px; color: var(--text-secondary); font-weight: 400; cursor: pointer; }

/* ── DASHBOARD WIDGETS ─────────────────────────────────────────────────── */
.activity-item { display: flex; align-items: flex-start; gap: 12px; padding: 12px 0; border-bottom: 1px solid var(--border); }
.activity-item:last-child { border-bottom: none; }
.activity-dot { width: 8px; height: 8px; border-radius: 50%; margin-top: 5px; flex-shrink: 0; }
.activity-meta { font-size: 11px; color: var(--text-muted); margin-top: 3px; }
.activity-text { font-size: 13px; }

/* ── MISC UTILITIES ─────────────────────────────────────────────────────── */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.gap-4 { gap: 16px; }
.mt-4 { margin-top: 16px; }
.mb-4 { margin-bottom: 16px; }
.text-right { text-align: right; }
.text-muted { color: var(--text-secondary); }
.text-accent { color: var(--accent); }
.text-green  { color: var(--green); }
.text-red    { color: var(--red); }
.text-amber  { color: var(--amber); }
.fw-700 { font-weight: 700; }
.font-mono { font-family: var(--font-mono); }
.divider { height: 1px; background: var(--border); margin: 20px 0; }

/* ── RESPONSIVE ─────────────────────────────────────────────────────────── */
@media (max-width: 900px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); }
  .main-wrapper { margin-left: 0; }
  .sidebar-toggle { display: flex; }
  .dashboard-grid { grid-template-columns: 1fr; }
  .kpi-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 540px) {
  .page-content { padding: 16px; }
  .kpi-grid { grid-template-columns: 1fr; }
}