/* ==========================================================================
   ExpenseTracker — dark & bold theme
   ========================================================================== */

:root {
    --primary: #eab308;
    --primary-hover: #ca8a04;
    --primary-light: rgba(234, 179, 8, 0.1);
    --primary-border: rgba(234, 179, 8, 0.3);

    --accent: #3b82f6;
    --accent-hover: #2563eb;
    --accent-light: rgba(59, 130, 246, 0.1);
    --accent-border: rgba(59, 130, 246, 0.3);

    --success: #22c55e;
    --success-bg: rgba(34, 197, 94, 0.1);
    --success-border: rgba(34, 197, 94, 0.3);
    --success-text: #4ade80;

    --warning: #eab308;
    --warning-bg: rgba(234, 179, 8, 0.1);
    --warning-border: rgba(234, 179, 8, 0.3);
    --warning-text: #facc15;

    --danger: #ef4444;
    --danger-bg: rgba(239, 68, 68, 0.1);
    --danger-border: rgba(239, 68, 68, 0.3);
    --danger-text: #f87171;

    --info: #3b82f6;
    --info-bg: rgba(59, 130, 246, 0.1);
    --info-border: rgba(59, 130, 246, 0.3);
    --info-text: #60a5fa;

    --bg-main: #0a0a0a;
    --bg-card: #141414;
    --bg-input: #1a1a1a;
    --bg-muted: #1a1a1a;
    --sidebar-bg: #111111;
    --sidebar-text: #737373;
    --sidebar-active: #ffffff;
    --sidebar-active-bg: var(--primary);
    --sidebar-border: #262626;

    --text-main: #fafafa;
    --text-secondary: #a3a3a3;
    --text-muted: #737373;
    --text-subtle: #525252;

    --border-color: #262626;
    --border-subtle: #1f1f1f;
    --border-focus: var(--primary);

    --radius-sm: 4px;
    --radius-md: 6px;
    --radius-lg: 8px;
    --radius-full: 9999px;

    --shadow-sm: 0 1px 2px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.4);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.5);
    --shadow-card: 0 1px 3px rgba(0,0,0,0.3);
}

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

::selection {
    background: rgba(234, 179, 8, 0.3);
    color: #facc15;
}

body {
    font-family: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--bg-main);
    color: var(--text-main);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

/* Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #404040; border-radius: var(--radius-full); }
::-webkit-scrollbar-thumb:hover { background: #525252; }

:focus-visible { outline: 2px solid var(--border-focus); outline-offset: 2px; }

a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-hover); }

/* ==========================================================================
   Layout & Sidebar
   ========================================================================== */

.app-layout { display: flex; min-height: 100vh; }

.mobile-navbar {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0;
    height: 52px;
    background: var(--sidebar-bg);
    color: #fff;
    align-items: center;
    justify-content: space-between;
    padding: 0 1rem;
    z-index: 100;
    border-bottom: 1px solid var(--border-color);
}

.mobile-menu-btn {
    background: transparent;
    border: none;
    color: #fff;
    font-size: 1.3rem;
    cursor: pointer;
}

.app-sidebar {
    width: 240px;
    background-color: var(--sidebar-bg);
    color: var(--sidebar-text);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0; bottom: 0; left: 0;
    z-index: 50;
    border-right: 1px solid var(--border-color);
}

.sidebar-brand {
    padding: 1.25rem 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    border-bottom: 1px solid var(--border-color);
}

.brand-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-icon { font-size: 1.2rem; }

.brand-name {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--primary);
}

.badge-tag { display: inline-flex; align-items: center; justify-content: center; }

.badge-subtle {
    font-size: 0.6rem;
    background: rgba(255,255,255,0.06);
    color: var(--text-muted);
    padding: 2px 8px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    margin-left: auto;
}

.sidebar-nav {
    flex: 1;
    padding: 1rem 0.75rem;
    overflow-y: auto;
}

.nav-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    padding: 0.55rem 0.85rem;
    border-radius: var(--radius-sm);
    color: var(--sidebar-text);
    font-weight: 500;
    font-size: 0.85rem;
    transition: all 0.1s;
    text-decoration: none;
}

.nav-link:hover {
    color: #fff;
    background: rgba(255,255,255,0.04);
}

.nav-link.active {
    color: #000;
    background: var(--primary);
    font-weight: 600;
}

.nav-icon { font-size: 1rem; }

.sidebar-footer {
    padding: 0.85rem;
    border-top: 1px solid var(--border-color);
}

.user-profile-card {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    margin-bottom: 0.65rem;
}

.user-avatar {
    width: 32px; height: 32px;
    background: var(--primary);
    color: #000;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.8rem;
}

.user-details { overflow: hidden; }

.user-name {
    display: block;
    font-size: 0.82rem;
    font-weight: 600;
    color: #fff;
}

.user-email {
    display: block;
    font-size: 0.68rem;
    color: var(--text-muted);
}

.btn-logout {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 0.65rem;
    border-radius: var(--radius-sm);
    color: #f87171;
    font-size: 0.78rem;
    font-weight: 500;
    transition: background 0.1s;
}

.btn-logout:hover { background: rgba(239,68,68,0.1); }

/* Main Content */
.app-main {
    flex: 1;
    margin-left: 240px;
    padding: 2rem;
}

.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.75rem;
}

.page-title {
    font-size: 1.35rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.page-subtitle {
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-top: 0.2rem;
}

/* ==========================================================================
   Cards & KPI
   ========================================================================== */

.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 1.25rem;
}

.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 0.85rem;
    margin-bottom: 1.5rem;
}

.kpi-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 1.1rem;
    display: flex;
    align-items: flex-start;
    gap: 0.85rem;
    transition: border-color 0.15s;
}

.kpi-card:hover { border-color: #404040; }

.kpi-icon-wrapper {
    width: 36px; height: 36px;
    background: rgba(255,255,255,0.04);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    flex-shrink: 0;
    border-radius: var(--radius-sm);
}

.kpi-card.card-primary .kpi-icon-wrapper { background: var(--primary-light); }
.kpi-card.card-info .kpi-icon-wrapper { background: var(--info-bg); }
.kpi-card.card-success .kpi-icon-wrapper { background: var(--success-bg); }
.kpi-card.card-warning .kpi-icon-wrapper { background: var(--warning-bg); }
.kpi-card.card-danger .kpi-icon-wrapper { background: var(--danger-bg); }
.kpi-card.card-purple .kpi-icon-wrapper { background: rgba(168,85,247,0.1); }

.kpi-content { flex: 1; overflow: hidden; }

.kpi-label {
    font-size: 0.7rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--text-muted);
}

.kpi-value {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--text-main);
    margin: 0.1rem 0;
    font-variant-numeric: tabular-nums;
}

.kpi-meta { font-size: 0.7rem; color: var(--text-muted); }

/* ==========================================================================
   Budget & Progress
   ========================================================================== */

.budget-progress-card { margin-bottom: 1.5rem; }

.budget-progress-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.75rem;
}

.budget-info h4 { font-size: 0.9rem; font-weight: 600; }
.budget-info p { font-size: 0.8rem; color: var(--text-muted); }

.card-header-styled {
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border-color);
}

.card-header-styled h3 { font-size: 0.95rem; font-weight: 600; }

.budget-alert-box { margin-top: 0.75rem; }

/* ==========================================================================
   Charts
   ========================================================================== */

.charts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.chart-card {
    min-height: 320px;
    display: flex;
    flex-direction: column;
}

.chart-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border-color);
}

.chart-header h3 { font-size: 0.95rem; font-weight: 600; }

.chart-wrapper, .chart-container {
    flex: 1;
    position: relative;
    width: 100%;
    min-height: 240px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.empty-chart {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 200px;
    width: 100%;
    background: var(--bg-muted);
    border: 1px dashed var(--border-color);
    color: var(--text-muted);
    text-align: center;
}

.empty-chart span { font-size: 2rem; margin-bottom: 0.5rem; }
.empty-chart p { font-size: 0.82rem; }

/* Progress Bars */
.progress-bar-container {
    width: 100%; height: 6px;
    background-color: var(--border-color);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.progress-bar-sm { height: 5px; }

.progress-bar-fill {
    height: 100%;
    background-color: var(--primary);
    border-radius: var(--radius-full);
}

.bg-success { background-color: var(--success); }
.bg-warning { background-color: var(--warning); }
.bg-danger { background-color: var(--danger); }

/* Status Badges */
.status-badge {
    font-size: 0.65rem;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: var(--radius-sm);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.status-success { background: var(--success-bg); color: var(--success-text); border: 1px solid var(--success-border); }
.status-warning { background: var(--warning-bg); color: var(--warning-text); border: 1px solid var(--warning-border); }
.status-danger { background: var(--danger-bg); color: var(--danger-text); border: 1px solid var(--danger-border); }

/* ==========================================================================
   Toolbar & Filters
   ========================================================================== */

.toolbar-card {
    margin-bottom: 1.25rem;
    padding: 1rem;
}

.filter-grid {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-end;
    gap: 0.75rem;
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
    flex: 1;
    min-width: 130px;
}

.filter-search { min-width: 180px; flex: 1.5; }

.filter-group label {
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--text-muted);
}

.filter-actions { display: flex; gap: 0.5rem; align-items: center; }

.stats-ribbon {
    display: flex;
    gap: 0.85rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.stat-pill {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 0.3rem 0.75rem;
    border-radius: var(--radius-full);
    font-size: 0.78rem;
}

.stat-pill-label { color: var(--text-muted); margin-right: 0.3rem; }
.stat-pill-value { font-weight: 600; }
.stat-highlight { color: var(--primary); }

/* ==========================================================================
   Tables
   ========================================================================== */

.table-card { padding: 0; overflow: hidden; }

.table-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.15rem;
    border-bottom: 1px solid var(--border-color);
}

.table-card-header h3 { font-size: 0.95rem; font-weight: 600; }

.table-responsive { width: 100%; overflow-x: auto; }

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
}

.data-table th {
    text-align: left;
    padding: 0.7rem 1rem;
    color: var(--text-muted);
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    border-bottom: 1px solid var(--border-color);
    background: rgba(255,255,255,0.02);
}

.data-table td {
    padding: 0.8rem 1rem;
    border-bottom: 1px solid var(--border-color);
    vertical-align: middle;
}

.data-table tbody tr { transition: background-color 0.1s; }
.data-table tbody tr:hover { background-color: rgba(255,255,255,0.02); }
.data-table tr:last-child td { border-bottom: none; }

.text-right { text-align: right; }
.text-center { text-align: center; }

.cell-amount {
    font-weight: 600;
    font-size: 0.88rem;
    font-variant-numeric: tabular-nums;
}

.date-badge {
    background: rgba(255,255,255,0.05);
    padding: 2px 8px;
    border-radius: var(--radius-sm);
    font-size: 0.78rem;
    color: var(--text-muted);
}

/* Category Badges */
.category-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 2px 8px;
    border-radius: var(--radius-full);
    font-size: 0.72rem;
    font-weight: 600;
}

.cat-food { background: rgba(234,179,8,0.15); color: #facc15; }
.cat-transport { background: rgba(59,130,246,0.15); color: #60a5fa; }
.cat-education { background: rgba(168,85,247,0.15); color: #c084fc; }
.cat-shopping { background: rgba(239,68,68,0.15); color: #f87171; }
.cat-entertainment { background: rgba(34,197,94,0.15); color: #4ade80; }
.cat-bills { background: rgba(249,115,22,0.15); color: #fb923c; }
.cat-health { background: rgba(6,182,212,0.15); color: #22d3ee; }
.cat-other { background: rgba(255,255,255,0.05); color: var(--text-muted); }

/* Action Buttons */
.action-btn-group { display: inline-flex; gap: 0.3rem; align-items: center; }

.btn-icon-action {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 30px; height: 30px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    background: transparent;
    cursor: pointer;
    font-size: 0.8rem;
    transition: all 0.1s;
}

.btn-icon-action:hover { background: rgba(255,255,255,0.05); border-color: #404040; }
.btn-edit:hover { border-color: var(--primary-border); color: var(--primary); }
.btn-delete:hover { border-color: var(--danger-border); color: var(--danger); }

.inline-form { display: inline; }

/* Empty State */
.table-empty { padding: 2.5rem 1rem !important; text-align: center; }

.empty-state {
    text-align: center;
    padding: 2.5rem 1rem;
    color: var(--text-muted);
}

.empty-icon { font-size: 2.2rem; display: block; margin-bottom: 0.5rem; }
.empty-state h3 { color: var(--text-main); font-size: 1rem; font-weight: 600; margin-bottom: 0.2rem; }
.empty-state p { font-size: 0.82rem; margin-bottom: 1rem; }

/* ==========================================================================
   Forms & Buttons
   ========================================================================== */

.form-container-card { max-width: 640px; margin: 0 auto; }
.form-card { padding: 1.5rem; }

.form-grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.form-group { margin-bottom: 1rem; }

.form-group label {
    display: block;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-muted);
    margin-bottom: 0.35rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.required { color: var(--danger); }
.optional { color: var(--text-subtle); font-weight: normal; font-size: 0.7rem; }

.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.input-icon {
    position: absolute;
    left: 0.9rem;
    font-size: 0.9rem;
    color: var(--text-muted);
    pointer-events: none;
    opacity: 0.5;
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
input[type="date"],
select,
textarea {
    width: 100%;
    padding: 0.65rem 0.9rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background-color: var(--bg-input);
    font-family: inherit;
    font-size: 0.88rem;
    color: var(--text-main);
    transition: border-color 0.15s;
}

input::placeholder, select::placeholder { color: var(--text-subtle); }

input:hover, select:hover, textarea:hover { border-color: #404040; }

input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--border-focus);
    box-shadow: 0 0 0 1px var(--border-focus);
}

.input-wrapper input,
.input-wrapper select {
    padding-left: 2.5rem;
}

.form-textarea { resize: vertical; }

.form-actions {
    display: flex;
    gap: 0.75rem;
    margin-top: 1.5rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    padding: 0.6rem 1.1rem;
    font-size: 0.85rem;
    font-weight: 600;
    font-family: inherit;
    border-radius: var(--radius-sm);
    border: 1px solid transparent;
    cursor: pointer;
    transition: all 0.1s;
    text-decoration: none;
}

.btn:active { transform: scale(0.98); }

.btn-primary { background: var(--primary); color: #000; }
.btn-primary:hover { background: var(--primary-hover); color: #000; }

.btn-secondary { background-color: var(--bg-muted); color: var(--text-secondary); border-color: var(--border-color); }
.btn-secondary:hover { background-color: #262626; color: var(--text-main); }

.btn-ghost { background-color: transparent; color: var(--text-muted); border: 1px solid var(--border-color); }
.btn-ghost:hover { color: #fff; border-color: #404040; }

.btn-block { width: 100%; }
.btn-sm { padding: 0.35rem 0.7rem; font-size: 0.78rem; }

/* ==========================================================================
   Alerts
   ========================================================================== */

.alert {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    padding: 0.7rem 1rem;
    border-radius: var(--radius-sm);
    font-size: 0.82rem;
    margin-bottom: 1.25rem;
    border: 1px solid;
}

.alert-danger { background: rgba(239,68,68,0.1); color: #fca5a5; border-color: rgba(239,68,68,0.2); }
.alert-success { background: rgba(34,197,94,0.1); color: #86efac; border-color: rgba(34,197,94,0.2); }
.alert-warning { background: rgba(234,179,8,0.1); color: #fde047; border-color: rgba(234,179,8,0.2); }
.alert-info { background: rgba(59,130,246,0.1); color: #93c5fd; border-color: rgba(59,130,246,0.2); }

/* ==========================================================================
   Auth Pages
   ========================================================================== */

.auth-page {
    background: var(--bg-main);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem 1rem;
}

.auth-container { width: 100%; max-width: 400px; }

.auth-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 2.5rem 2rem;
}

.auth-header { text-align: center; margin-bottom: 2.25rem; }

.auth-header .brand-logo {
    justify-content: center;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1.25rem;
}

.auth-header .logo-icon { font-size: 1.5rem; }
.auth-header .brand-name { font-size: 1.1rem; font-weight: 700; color: var(--primary); }

.auth-header h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 0.3rem;
    letter-spacing: -0.02em;
}

.auth-subtitle { color: var(--text-muted); font-size: 0.88rem; }

.auth-footer {
    text-align: center;
    margin-top: 1.5rem;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.auth-link { font-weight: 600; color: var(--primary); }
.auth-link:hover { text-decoration: underline; }

/* ==========================================================================
   Budget & Reports Specific
   ========================================================================== */

.grid-2-col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
    margin-bottom: 1.5rem;
}

.budget-metrics-list { display: flex; flex-direction: column; gap: 0.75rem; }

.metric-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 0;
    border-bottom: 1px dashed var(--border-color);
    font-size: 0.88rem;
}

.metric-row:last-child { border-bottom: none; }

.stat-danger { color: var(--danger); font-weight: 600; }
.stat-success { color: var(--success); font-weight: 600; }
.font-medium { font-weight: 600; }

.mt-3 { margin-top: 0.75rem; }
.mt-4 { margin-top: 1.5rem; }

/* ==========================================================================
   Print & Responsive
   ========================================================================== */

@media print {
    .app-sidebar, .mobile-navbar, .no-print, .btn, .btn-icon-action, .toolbar-card { display: none !important; }
    .app-main { margin-left: 0 !important; padding: 0 !important; }
    .card { box-shadow: none !important; border: 1px solid #444 !important; }
}

@media (max-width: 992px) {
    .app-sidebar { transform: translateX(-100%); }
    .app-sidebar.open { transform: translateX(0); }
    .app-main { margin-left: 0; padding: 4rem 1.25rem 2rem; }
    .mobile-navbar { display: flex; }
    .charts-grid, .grid-2-col, .form-grid-2 { grid-template-columns: 1fr; }
}