/* CSS Variables for Dark Theme */
:root {
    --bg-color: #0f172a;
    --card-bg: #1e293b;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --accent-color: #3b82f6;
    --accent-hover: #2563eb;
    --border-color: #334155;
    --income-color: #10b981;
    --expense-color: #ef4444;
    --font-main: 'Inter', sans-serif;
}

body {
    font-family: var(--font-main);
    background-color: var(--bg-color);
    color: var(--text-primary);
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

a { text-decoration: none; color: var(--accent-color); }
h1, h2, h3, h4 { margin: 0; font-weight: 600; }

/* Login Layout Overrides */
.login-layout {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}
.login-layout .container {
    background-color: var(--card-bg);
    padding: 40px;
    border-radius: 16px;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.4), 0 10px 10px -5px rgba(0, 0, 0, 0.2);
    width: 100%;
    max-width: 400px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}
.login-layout h2 { color: var(--text-primary); margin-bottom: 5px; text-align: center; }
.login-layout p.subtitle { color: var(--text-secondary); margin-bottom: 30px; font-size: 14px; text-align: center;}
.login-layout .form-group { margin-bottom: 20px; }
.login-layout label { display: block; color: var(--text-secondary); margin-bottom: 8px; font-size: 14px;}
.login-layout input { 
    width: 100%;
    box-sizing: border-box;
    background-color: rgba(15, 23, 42, 0.5); 
    border: 1px solid var(--border-color); 
    color: var(--text-primary);
    padding: 12px;
    border-radius: 8px;
    transition: all 0.2s;
    font-family: var(--font-main);
}
.login-layout input:focus { outline: none; border-color: var(--accent-color); box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2); }
.login-layout button {
    width: 100%;
    padding: 12px;
    color: white;
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    letter-spacing: 0.5px;
    cursor: pointer;
    transition: all 0.2s;
    font-family: var(--font-main);
    margin-top: 10px;
    margin-bottom: 24px;
}
.login-layout button:hover { transform: translateY(-1px); box-shadow: 0 6px 16px rgba(59, 130, 246, 0.3); }
.login-layout .instructions {
    background-color: rgba(255,255,255,0.03);
    color: var(--text-secondary);
    border: 1px solid rgba(255,255,255,0.05);
    padding: 16px;
    border-radius: 12px;
    font-size: 13px;
    line-height: 1.5;
}
.login-layout .instructions code {
    background-color: rgba(0,0,0,0.3);
    padding: 4px 8px;
    border-radius: 4px;
    color: var(--accent-color);
    font-family: monospace;
}
.login-layout .error {
    background-color: rgba(239, 68, 68, 0.1);
    color: #fca5a5;
    border: 1px solid rgba(239, 68, 68, 0.2);
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 24px;
    font-size: 14px;
    text-align: center;
}

/* Dashboard Layout */
.dashboard-wrapper {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: 260px;
    background-color: var(--card-bg);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
}
.sidebar-header {
    padding: 30px 24px;
}
.sidebar-header h2 {
    color: var(--text-primary);
    font-size: 22px;
    letter-spacing: -0.5px;
    display: flex;
    align-items: center;
    gap: 10px;
}
.sidebar-header h2::before {
    content: '⚡';
    font-size: 24px;
}
.sidebar-nav {
    flex: 1;
    padding: 10px 15px;
}
.nav-item {
    display: flex;
    align-items: center;
    padding: 12px 15px;
    color: var(--text-secondary);
    transition: all 0.2s ease;
    font-weight: 500;
    border-radius: 8px;
    margin-bottom: 5px;
}
.nav-item i { margin-right: 15px; font-style: normal; font-size: 18px; opacity: 0.7;}
.nav-item:hover {
    background-color: rgba(255, 255, 255, 0.03);
    color: var(--text-primary);
}
.nav-item.active {
    background-color: rgba(59, 130, 246, 0.1);
    color: var(--accent-color);
}
.nav-item.active i { opacity: 1; }

.sidebar-footer {
    padding: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}
.user-info { margin-bottom: 15px; font-size: 14px; color: var(--text-secondary); display: flex; align-items: center; gap: 10px;}
.user-avatar { width: 32px; height: 32px; background-color: var(--accent-color); border-radius: 50%; display: flex; align-items: center; justify-content: center; color: white; font-weight: bold;}
.btn-logout {
    display: block;
    text-align: center;
    background-color: rgba(239, 68, 68, 0.1);
    color: var(--expense-color);
    padding: 12px;
    border-radius: 8px;
    transition: background 0.2s;
    font-weight: 500;
}
.btn-logout:hover { background-color: rgba(239, 68, 68, 0.2); }

/* Main Content */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
}
.topbar {
    height: 70px;
    padding: 0 40px;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    background-color: var(--bg-color);
}
.date-display { 
    background-color: var(--card-bg);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 14px;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}
.date-display strong { color: var(--text-primary); }
.content {
    padding: 0 40px 40px 40px;
    flex: 1;
    overflow-y: auto;
}

/* Dashboard Cards */
.summary-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
    margin-bottom: 30px;
}
.card {
    background-color: var(--card-bg);
    border-radius: 16px;
    padding: 24px;
    display: flex;
    align-items: center;
    border: 1px solid rgba(255,255,255,0.03);
    transition: transform 0.2s, box-shadow 0.2s;
}
.card:hover { 
    transform: translateY(-4px); 
    box-shadow: 0 10px 20px rgba(0,0,0,0.2);
}
.card-icon {
    font-size: 28px;
    width: 64px;
    height: 64px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 20px;
}
.card-income .card-icon { background-color: rgba(16, 185, 129, 0.1); color: var(--income-color); }
.card-expense .card-icon { background-color: rgba(239, 68, 68, 0.1); color: var(--expense-color); }
.card-balance .card-icon { background-color: rgba(59, 130, 246, 0.1); color: var(--accent-color); }
.card-info h3 { font-size: 14px; color: var(--text-secondary); margin-bottom: 8px; font-weight: 500; text-transform: uppercase; letter-spacing: 0.5px;}
.card-info p { font-size: 28px; font-weight: 700; margin: 0; letter-spacing: -0.5px;}

.text-green { color: var(--income-color); }
.text-red { color: var(--expense-color); }

/* Charts */
.charts-container {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 24px;
}
.chart-box {
    background-color: var(--card-bg);
    border-radius: 16px;
    padding: 24px;
    border: 1px solid rgba(255,255,255,0.03);
}
.chart-box h3 {
    margin-bottom: 24px;
    font-size: 16px;
    color: var(--text-primary);
    font-weight: 600;
}
.canvas-wrapper {
    position: relative;
    height: 320px;
    width: 100%;
}
.empty-state {
    height: 320px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-style: italic;
    background-color: rgba(255,255,255,0.02);
    border-radius: 12px;
}

@media (max-width: 992px) {
    .charts-container { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .dashboard-wrapper { flex-direction: column; }
    .sidebar { width: 100%; border-right: none; border-bottom: 1px solid var(--border-color); }
    .sidebar-header { padding: 20px; }
    .sidebar-nav { display: flex; overflow-x: auto; padding: 10px 20px; }
    .nav-item { padding: 10px 15px; flex-shrink: 0; margin-bottom: 0; margin-right: 10px;}
    .sidebar-footer { display: flex; align-items: center; justify-content: space-between; padding: 15px 20px;}
    .user-info { margin-bottom: 0; }
    .topbar { padding: 0 20px; height: 60px; justify-content: center;}
    .content { padding: 20px; }
    .summary-cards { grid-template-columns: 1fr; }
}

/* ================================ */
/* === PAGE HEADER ================ */
/* ================================ */
.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 28px;
}
.page-header h1 {
    font-size: 24px;
    font-weight: 700;
    letter-spacing: -0.5px;
}
.record-count {
    background-color: rgba(59, 130, 246, 0.1);
    color: var(--accent-color);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 500;
}

/* ================================ */
/* === FILTER PANEL =============== */
/* ================================ */
.filter-panel {
    background-color: var(--card-bg);
    border-radius: 16px;
    padding: 24px;
    margin-bottom: 24px;
    border: 1px solid rgba(255,255,255,0.03);
}
.filter-form {
    display: flex;
    gap: 16px;
    align-items: flex-end;
    flex-wrap: wrap;
}
.filter-group {
    display: flex;
    flex-direction: column;
    flex: 1;
    min-width: 160px;
}
.filter-group label {
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 6px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.filter-group input,
.filter-group select {
    background-color: rgba(15, 23, 42, 0.5);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 10px 14px;
    border-radius: 10px;
    font-size: 14px;
    font-family: var(--font-main);
    transition: all 0.2s ease;
    -webkit-appearance: none;
    appearance: none;
}
.filter-group select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' fill='%2394a3b8'%3E%3Cpath d='M0 0l5 6 5-6z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 32px;
    cursor: pointer;
}
.filter-group input:focus,
.filter-group select:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}
.filter-group input[type="date"]::-webkit-calendar-picker-indicator {
    filter: invert(0.6);
    cursor: pointer;
}
.filter-actions {
    display: flex;
    gap: 8px;
    align-items: flex-end;
}
.btn {
    padding: 10px 20px;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 600;
    font-family: var(--font-main);
    cursor: pointer;
    border: none;
    transition: all 0.2s ease;
    white-space: nowrap;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.btn-primary {
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    color: white;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}
.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(59, 130, 246, 0.4);
}
.btn-secondary {
    background-color: rgba(255,255,255,0.05);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}
.btn-secondary:hover {
    background-color: rgba(255,255,255,0.08);
    color: var(--text-primary);
}

/* ================================ */
/* === DATA TABLE ================= */
/* ================================ */
.table-container {
    background-color: var(--card-bg);
    border-radius: 16px;
    border: 1px solid rgba(255,255,255,0.03);
    overflow: hidden;
}
.table-responsive {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    width: 100%;
}
.data-table {
    width: 100%;
    border-collapse: collapse;
}
.data-table thead {
    background-color: rgba(255,255,255,0.02);
}
.data-table th {
    padding: 14px 20px;
    text-align: left;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 1px solid var(--border-color);
}
.data-table td {
    padding: 16px 20px;
    font-size: 14px;
    border-bottom: 1px solid rgba(255,255,255,0.03);
    vertical-align: middle;
}
.data-table tbody tr {
    transition: background-color 0.15s ease;
}
.data-table tbody tr:hover {
    background-color: rgba(255,255,255,0.02);
}
.table-row {
    animation: fadeSlideIn 0.3s ease forwards;
    opacity: 0;
}
@keyframes fadeSlideIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}
.text-right { text-align: right; }
.text-center { text-align: center; }

.btn-icon {
    background: none;
    border: none;
    font-size: 16px;
    cursor: pointer;
    padding: 8px;
    border-radius: 8px;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
}
.btn-delete:hover {
    background-color: rgba(239, 68, 68, 0.15);
    color: var(--expense-color);
    transform: scale(1.05);
}

.date-cell {
    display: flex;
    flex-direction: column;
    gap: 2px;
}
.date-day {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1;
}
.date-month {
    font-size: 11px;
    color: var(--text-secondary);
    text-transform: uppercase;
}
.category-badge {
    background-color: rgba(59, 130, 246, 0.1);
    color: var(--accent-color);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
}
.desc-cell {
    color: var(--text-secondary);
    max-width: 250px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.type-badge {
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}
.type-income {
    background-color: rgba(16, 185, 129, 0.1);
    color: var(--income-color);
}
.type-expense {
    background-color: rgba(239, 68, 68, 0.1);
    color: var(--expense-color);
}
.amount-cell {
    font-weight: 600;
    font-variant-numeric: tabular-nums;
    white-space: nowrap;
}

/* ================================ */
/* === PAGINATION ================= */
/* ================================ */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 20px;
}
.page-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 12px;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    background-color: rgba(255,255,255,0.03);
    border: 1px solid var(--border-color);
    transition: all 0.2s ease;
    text-decoration: none;
}
.page-btn:hover {
    background-color: rgba(59, 130, 246, 0.1);
    border-color: var(--accent-color);
    color: var(--accent-color);
}
.page-btn.active {
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    color: white;
    border-color: transparent;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}
.page-dots {
    color: var(--text-secondary);
    padding: 0 4px;
}

/* ================================ */
/* === EMPTY STATES =============== */
/* ================================ */
.empty-state-full {
    text-align: center;
    padding: 60px 40px;
}
.empty-icon {
    font-size: 56px;
    margin-bottom: 16px;
    opacity: 0.6;
}
.empty-state-full h3 {
    font-size: 18px;
    color: var(--text-primary);
    margin-bottom: 8px;
}
.empty-state-full p {
    color: var(--text-secondary);
    font-size: 14px;
}

/* ================================ */
/* === REPORTS PAGE =============== */
/* ================================ */
.month-selector {
    display: flex;
    gap: 8px;
}
.month-selector select {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 8px 36px 8px 14px;
    border-radius: 10px;
    font-size: 14px;
    font-family: var(--font-main);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    -webkit-appearance: none;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' fill='%2394a3b8'%3E%3Cpath d='M0 0l5 6 5-6z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
}
.month-selector select:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

/* Report Summary Cards */
.report-summary-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-bottom: 28px;
}
.report-card {
    background-color: var(--card-bg);
    border-radius: 16px;
    padding: 24px;
    border: 1px solid rgba(255,255,255,0.03);
    position: relative;
    overflow: hidden;
    transition: transform 0.2s, box-shadow 0.2s;
}
.report-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.2);
}
.report-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
}
.report-card-income::before {
    background: linear-gradient(90deg, #10b981, #34d399);
}
.report-card-expense::before {
    background: linear-gradient(90deg, #ef4444, #f87171);
}
.report-card-balance::before {
    background: linear-gradient(90deg, #3b82f6, #60a5fa);
}
.report-card-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
}
.report-card-icon {
    font-size: 20px;
}
.report-card-label {
    font-size: 13px;
    color: var(--text-secondary);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.report-card-value {
    font-size: 26px;
    font-weight: 700;
    letter-spacing: -0.5px;
}

/* Category Breakdown */
.report-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-bottom: 28px;
}
.breakdown-section {
    background-color: var(--card-bg);
    border-radius: 16px;
    padding: 24px;
    border: 1px solid rgba(255,255,255,0.03);
}
.breakdown-title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 20px;
}
.breakdown-icon {
    width: 28px;
    height: 28px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 700;
}
.income-icon {
    background-color: rgba(16, 185, 129, 0.15);
    color: var(--income-color);
}
.expense-icon {
    background-color: rgba(239, 68, 68, 0.15);
    color: var(--expense-color);
}
.breakdown-list {
    display: flex;
    flex-direction: column;
    gap: 14px;
}
.breakdown-item {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 8px 16px;
    animation: fadeSlideIn 0.3s ease forwards;
    opacity: 0;
}
.breakdown-info {
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.breakdown-category {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
}
.breakdown-count {
    font-size: 12px;
    color: var(--text-secondary);
}
.breakdown-bar-wrapper {
    height: 6px;
    background-color: rgba(255,255,255,0.05);
    border-radius: 3px;
    overflow: hidden;
    grid-column: 1 / -1;
}
.breakdown-bar {
    height: 100%;
    border-radius: 3px;
    transition: width 0.8s ease;
    min-width: 4px;
}
.income-bar {
    background: linear-gradient(90deg, #10b981, #34d399);
}
.expense-bar {
    background: linear-gradient(90deg, #ef4444, #f87171);
}
.breakdown-amount {
    font-size: 14px;
    font-weight: 600;
    font-variant-numeric: tabular-nums;
    text-align: right;
    grid-row: 1;
    grid-column: 2;
}
.empty-state-mini {
    padding: 30px;
    text-align: center;
    color: var(--text-secondary);
    font-style: italic;
    font-size: 14px;
    background-color: rgba(255,255,255,0.02);
    border-radius: 12px;
}

/* Report Charts Grid */
.report-charts {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

/* ================================ */
/* === RESPONSIVE — NEW PAGES ==== */
/* ================================ */
@media (max-width: 992px) {
    .report-grid { grid-template-columns: 1fr; }
    .report-charts { grid-template-columns: 1fr; }
    .report-summary-cards { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .page-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }
    .filter-form {
        flex-direction: column;
    }
    .filter-group {
        min-width: 100%;
    }
    .filter-actions {
        width: 100%;
    }
    .filter-actions .btn {
        flex: 1;
        justify-content: center;
    }
    .pagination {
        flex-wrap: wrap;
    }
    .report-grid { grid-template-columns: 1fr; }
    .report-charts { grid-template-columns: 1fr; }
    .report-summary-cards { grid-template-columns: 1fr; }
    .month-selector {
        width: 100%;
    }
    .month-selector select {
        flex: 1;
    }
}