/* ================================================================
   AI THEME — BudgetPulse
   Deep-space · Glassmorphism · Neural gradients · Indigo/Cyan
   Loaded last; only additive rules (no !important abuse).
   Light-theme reverts are appended at the bottom.
   ================================================================ */

/* ── 1. Font ────────────────────────────────────────────────────── */
:root {
  --font-family-base: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
}

/* ── 2. Background Ambiance — soft gradient orbs ────────────────── */
body {
  position: relative;
  /* Subtle noise-like texture via repeating gradient */
  background-image:
    radial-gradient(ellipse 60% 40% at 80% 10%, rgba(124,58,237,0.07) 0%, transparent 70%),
    radial-gradient(ellipse 50% 35% at 10% 85%, rgba(6,182,212,0.06)  0%, transparent 70%);
  background-attachment: fixed;
}

/* ── 3. Topbar ──────────────────────────────────────────────────── */
.topbar {
  border-bottom-color: rgba(99, 102, 241, 0.22);
  box-shadow: 0 1px 0 rgba(99, 102, 241, 0.1), 0 2px 16px rgba(0,0,0,0.35);
}

/* ── 4. Brand gradient text ─────────────────────────────────────── */
.brand {
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ── 5. Glassmorphism on Cards ──────────────────────────────────── */
.card {
  background:
    linear-gradient(135deg, rgba(129,140,248,0.06) 0%, transparent 55%, rgba(6,182,212,0.03) 100%),
    rgba(8, 15, 40, 0.72);
  backdrop-filter: blur(18px) saturate(130%);
  -webkit-backdrop-filter: blur(18px) saturate(130%);
  border: 1px solid rgba(99, 102, 241, 0.15);
  box-shadow: 0 4px 24px rgba(0,0,0,0.4), 0 0 0 1px rgba(99,102,241,0.07);
}

/* Card hover lift + glow */
.card:hover {
  border-color: rgba(99, 102, 241, 0.28);
  box-shadow: 0 8px 32px rgba(0,0,0,0.5), var(--glow-sm);
}

/* ── 6. KPI / stat boxes ────────────────────────────────────────── */
.kpi {
  background: linear-gradient(135deg, rgba(129,140,248,0.07) 0%, rgba(6,182,212,0.04) 100%);
  border: 1px solid rgba(99, 102, 241, 0.18);
  border-top: 2px solid rgba(99, 102, 241, 0.45);
  position: relative;
  overflow: hidden;
}

/* Accent line at top of income/expense KPI */
.kpi.income { border-top-color: var(--color-success); }
.kpi.expense { border-top-color: var(--color-error); }
.kpi.balance { border-top-color: var(--color-primary); }

.kpi .value {
  letter-spacing: -0.02em;
}

/* ── 7. Sidebar enhancements ────────────────────────────────────── */
.sidebar {
  background: rgba(8, 15, 40, 0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-right: 1px solid rgba(99, 102, 241, 0.14);
}

.sidebar-link.active {
  background: linear-gradient(90deg, rgba(129,140,248,0.16) 0%, transparent 100%);
  color: #a5b4fc;
}

.sidebar-link.active::before {
  background: var(--gradient-primary);
  width: 3px;
}

.sidebar-link:hover {
  background: rgba(129, 140, 248, 0.07);
}

/* ── 8. Primary / action buttons ────────────────────────────────── */
.btn-primary,
button[type="submit"].btn,
a.btn.btn-primary {
  background: var(--gradient-primary) !important;
  border-color: transparent !important;
  color: #fff !important;
  box-shadow: 0 4px 14px rgba(124, 58, 237, 0.35);
}

.btn-primary:hover,
button[type="submit"].btn:hover,
a.btn.btn-primary:hover {
  box-shadow: 0 4px 22px rgba(124, 58, 237, 0.55);
  filter: brightness(1.08);
}

/* ── 9. Input focus glow ────────────────────────────────────────── */
input:focus,
select:focus,
textarea:focus,
.form-control:focus,
.form-select:focus {
  border-color: rgba(129, 140, 248, 0.55) !important;
  box-shadow: 0 0 0 3px rgba(129, 140, 248, 0.18) !important;
  outline: none;
}

/* ── 10. Table rows ─────────────────────────────────────────────── */
.table > tbody > tr:hover > * {
  background-color: rgba(129, 140, 248, 0.05) !important;
}

/* ── 11. Badges & pills ─────────────────────────────────────────── */
.badge.bg-primary,
.badge.text-bg-primary {
  background: var(--gradient-primary) !important;
  border: none;
}

/* ── 12. Secondary nav — active group label glow ────────────────── */
.nav-group.has-active > .nav-group-label {
  color: #a5b4fc !important;
  border-bottom-color: #818cf8 !important;
  text-shadow: 0 0 14px rgba(129, 140, 248, 0.4);
}

/* ── 13. Notification badge ─────────────────────────────────────── */
.notification-badge {
  background: var(--gradient-primary);
}

/* ── 14. Scrollbar — subtle indigo tint ─────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: rgba(99, 102, 241, 0.3);
  border-radius: 9999px;
}
::-webkit-scrollbar-thumb:hover {
  background: rgba(99, 102, 241, 0.5);
}

/* ── 15. Chart.js canvas containers — subtle glow on hover ──────── */
.chart-wrapper:hover,
.chart-container:hover {
  filter: drop-shadow(0 0 8px rgba(129, 140, 248, 0.12));
}

/* ── 16. AI feature highlight ring ─────────────────────────────── */
.ai-highlight {
  border: 1px solid rgba(129, 140, 248, 0.3);
  box-shadow: 0 0 12px rgba(129, 140, 248, 0.15);
}

/* ── 17. Progress bars ──────────────────────────────────────────── */
.progress-bar,
.progress-bar.bg-primary {
  background: var(--gradient-primary) !important;
}

/* ── 18. Dropdown menus ─────────────────────────────────────────── */
.dropdown-menu,
.user-menu-dropdown,
.nav-group-items {
  background: rgba(8, 15, 40, 0.95) !important;
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border: 1px solid rgba(99, 102, 241, 0.2) !important;
  box-shadow: 0 12px 36px rgba(0,0,0,0.5), 0 0 0 1px rgba(99,102,241,0.08) !important;
}

/* ── 19. Alerts ─────────────────────────────────────────────────── */
.alert {
  backdrop-filter: blur(12px);
  border-left: 3px solid currentColor;
}

/* ── 20. Modal / panel dialogs ──────────────────────────────────── */
.modal-content {
  background: rgba(8, 15, 40, 0.96) !important;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(99, 102, 241, 0.2) !important;
}

/* ================================================================
   LIGHT THEME — revert AI-only effects
   ================================================================ */

[data-theme="light"] body {
  background-image: none;
}

[data-theme="light"] .brand {
  background: none;
  -webkit-text-fill-color: var(--text);
  background-clip: initial;
  color: var(--text);
}

[data-theme="light"] .card {
  background: var(--surface);
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-base);
}

[data-theme="light"] .card:hover {
  box-shadow: var(--shadow-lg);
}

[data-theme="light"] .kpi {
  background: var(--kpi-bg);
  border: 1px solid var(--kpi-border);
  border-top: 2px solid;
}

[data-theme="light"] .sidebar {
  background: var(--panel);
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  border-right: 1px solid var(--border);
}

[data-theme="light"] .sidebar-link.active {
  background: rgba(13, 110, 253, 0.08);
  color: var(--blue);
}

[data-theme="light"] .sidebar-link.active::before {
  background: var(--blue);
}

[data-theme="light"] .sidebar-link:hover {
  background: var(--table-hover-bg);
}

[data-theme="light"] .btn-primary,
[data-theme="light"] button[type="submit"].btn,
[data-theme="light"] a.btn.btn-primary {
  background: var(--color-primary) !important;
  box-shadow: none;
  filter: none;
}

[data-theme="light"] .dropdown-menu,
[data-theme="light"] .user-menu-dropdown,
[data-theme="light"] .nav-group-items {
  background: var(--surface) !important;
  backdrop-filter: none;
  border: 1px solid var(--border) !important;
  box-shadow: var(--shadow-lg) !important;
}

[data-theme="light"] .modal-content {
  background: var(--surface) !important;
  backdrop-filter: none;
  border: 1px solid var(--border) !important;
}

[data-theme="light"] .nav-group.has-active > .nav-group-label {
  text-shadow: none;
  color: var(--blue) !important;
  border-bottom-color: var(--blue) !important;
}

[data-theme="light"] .badge.bg-primary,
[data-theme="light"] .badge.text-bg-primary {
  background: var(--color-primary) !important;
}

[data-theme="light"] .progress-bar,
[data-theme="light"] .progress-bar.bg-primary {
  background: var(--color-primary) !important;
}

[data-theme="light"] .notification-badge {
  background: var(--color-error);
}

[data-theme="light"] ::-webkit-scrollbar-thumb {
  background: rgba(0, 0, 0, 0.2);
}

[data-theme="light"] ::-webkit-scrollbar-thumb:hover {
  background: rgba(0, 0, 0, 0.35);
}