/*
 * themoneytracker-ci4 design system.
 * No jQuery/Bootstrap 3 (CI3's stack was flagged outdated in the migration's
 * dependency audit) - plain modern CSS, system font stack, flexbox/grid,
 * inline SVG icons (no icon-font dependency). Same information architecture
 * as CI3's Limitless theme, deliberately more modern look.
 */

:root {
    --color-bg: #f6f7fb;
    --color-surface: #ffffff;
    --color-text: #1a1d29;
    --color-text-muted: #6b7280;
    --color-border: #e8eaf0;
    --color-primary: #4f46e5;
    --color-primary-hover: #4338ca;
    --color-primary-soft: #eef2ff;
    --color-positive: #059669;
    --color-positive-soft: #ecfdf5;
    --color-negative: #dc2626;
    --color-negative-soft: #fef2f2;
    --sidebar-bg: #171b2e;
    --sidebar-text: #a3a8c3;
    --sidebar-text-active: #ffffff;
    --sidebar-width: 240px;
    --radius: 12px;
    --radius-sm: 8px;
    --shadow-card: 0 1px 2px rgba(16, 24, 40, 0.04);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background: var(--color-bg);
    color: var(--color-text);
    -webkit-font-smoothing: antialiased;
}

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

svg {
    display: block;
}

/* ---------- App shell: sidebar + main ---------- */

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

.sidebar {
    width: var(--sidebar-width);
    flex-shrink: 0;
    background: var(--sidebar-bg);
    padding: 20px 14px;
    position: sticky;
    top: 0;
    height: 100vh;
    overflow-y: auto;
}

.sidebar .brand {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #fff;
    font-weight: 700;
    font-size: 1.05rem;
    padding: 6px 10px 22px;
}

.sidebar .brand svg {
    width: 22px;
    height: 22px;
    color: var(--color-primary);
}

.sidebar nav a {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--sidebar-text);
    padding: 10px 12px;
    border-radius: var(--radius-sm);
    font-size: 0.88rem;
    font-weight: 500;
    margin-bottom: 2px;
    transition: background 0.15s, color 0.15s;
}

.sidebar nav a svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

.sidebar nav a:hover {
    background: rgba(255, 255, 255, 0.06);
    color: #fff;
}

.sidebar nav a.active {
    background: var(--color-primary);
    color: var(--sidebar-text-active);
}

.sidebar .nav-divider {
    height: 1px;
    background: rgba(255, 255, 255, 0.08);
    margin: 14px 10px;
}

.main-column {
    flex: 1;
    min-width: 0;
}

.app-header {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 20px;
    padding: 16px 28px;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
}

.switch-ui-link {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--color-primary);
    padding: 7px 14px;
    border: 1px solid var(--color-primary);
    border-radius: var(--radius-sm);
    white-space: nowrap;
}

.switch-ui-link:hover {
    background: var(--color-primary-soft);
}

.user-menu {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.88rem;
    color: var(--color-text-muted);
}

.user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--color-primary-soft);
    color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.85rem;
}

.app-content {
    max-width: 1100px;
    padding: 28px;
}

/* ---------- Stat cards ---------- */

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
    margin-bottom: 28px;
}

.stat-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 18px 20px;
    box-shadow: var(--shadow-card);
    display: flex;
    align-items: flex-start;
    gap: 14px;
    text-decoration: none;
    color: inherit;
    transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
    cursor: pointer;
}

.stat-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(17, 24, 39, 0.1);
    border-color: var(--color-primary);
}

.stat-card .icon-badge {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.stat-card .icon-badge svg {
    width: 20px;
    height: 20px;
}

.stat-card .icon-badge.tone-primary { background: var(--color-primary-soft); color: var(--color-primary); }
.stat-card .icon-badge.tone-positive { background: var(--color-positive-soft); color: var(--color-positive); }
.stat-card .icon-badge.tone-negative { background: var(--color-negative-soft); color: var(--color-negative); }
.stat-card .icon-badge.tone-neutral { background: #f1f2f6; color: #4b5065; }

.stat-card .label {
    font-size: 0.78rem;
    color: var(--color-text-muted);
    margin-bottom: 4px;
}

.stat-card .value {
    font-size: 1.4rem;
    font-weight: 700;
    line-height: 1.2;
}

.stat-card .value.positive { color: var(--color-positive); }
.stat-card .value.negative { color: var(--color-negative); }

/* ---------- Panels ---------- */

.panel {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 22px;
    box-shadow: var(--shadow-card);
}

.panel h2 {
    margin-top: 0;
    font-size: 1rem;
    margin-bottom: 18px;
}

.category-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 11px 0;
    border-bottom: 1px solid var(--color-border);
    gap: 14px;
}

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

.category-row .category-name {
    width: 160px;
    flex-shrink: 0;
    font-size: 0.88rem;
    font-weight: 500;
}

.category-row .bar {
    flex: 1;
    height: 8px;
    background: var(--color-bg);
    border-radius: 4px;
    overflow: hidden;
}

.category-row .bar-fill {
    height: 100%;
    border-radius: 4px;
}

.category-row .category-value {
    width: 140px;
    flex-shrink: 0;
    text-align: right;
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

.empty-state {
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

/* ---------- Auth ---------- */

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

.auth-card {
    background: var(--color-surface);
    border-radius: var(--radius);
    padding: 36px;
    width: 100%;
    max-width: 380px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.25);
}

.auth-card .brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    margin-bottom: 24px;
    color: var(--color-primary);
}

.auth-card .brand svg {
    width: 24px;
    height: 24px;
}

.auth-card h1 {
    font-size: 1.3rem;
    margin: 0 0 4px;
}

.auth-card .subtitle {
    color: var(--color-text-muted);
    font-size: 0.88rem;
    margin-bottom: 24px;
}

/* ---------- Forms ---------- */

.form-field {
    margin-bottom: 16px;
}

.form-field label {
    display: block;
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin-bottom: 6px;
    font-weight: 500;
}

.form-field input,
.form-field select,
.form-field textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    font-family: inherit;
}

.form-field textarea {
    resize: vertical;
}

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

.btn-primary {
    padding: 11px 20px;
    background: var(--color-primary);
    color: #fff;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 0.92rem;
    font-weight: 600;
    cursor: pointer;
}

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

.auth-card .btn-primary {
    width: 100%;
}

/* ---------- Page toolbar / tables ---------- */

.page-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.page-toolbar h1 {
    font-size: 1.4rem;
    margin: 0;
}

.btn-link {
    background: var(--color-primary);
    color: #fff;
    padding: 9px 18px;
    border-radius: var(--radius-sm);
    font-size: 0.88rem;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

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

.data-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-card);
}

.data-table th,
.data-table td {
    text-align: left;
    padding: 13px 18px;
    border-bottom: 1px solid var(--color-border);
    font-size: 0.88rem;
}

.data-table th {
    color: var(--color-text-muted);
    font-weight: 600;
    background: var(--color-bg);
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.data-table tr:last-child td {
    border-bottom: none;
}

.data-table tr:hover td {
    background: var(--color-bg);
}

.data-table .amount {
    font-weight: 600;
    text-align: right;
}

.form-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 26px;
    max-width: 480px;
    margin: 0 auto;
    box-shadow: var(--shadow-card);
}

/* ---------- Alerts ---------- */

.success-message,
.error-message {
    padding: 11px 14px;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    margin-bottom: 18px;
}

.success-message {
    background: var(--color-positive-soft);
    color: var(--color-positive);
}

.error-message {
    background: var(--color-negative-soft);
    color: var(--color-negative);
}

/* ---------- Pagination ---------- */

.pagination {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 18px;
}

.pagination .page-link {
    padding: 6px 12px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    color: var(--color-text-muted);
    background: var(--color-surface);
}

.pagination .page-link:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.pagination .page-link.current {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: #fff;
    font-weight: 600;
}

/* ---------- Reports ---------- */

.export-links {
    display: flex;
    gap: 8px;
}

.btn-outline {
    padding: 6px 14px;
    background: var(--color-surface);
    color: var(--color-primary);
    border: 1px solid var(--color-primary);
    border-radius: var(--radius-sm);
    font-size: 0.82rem;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.btn-outline:hover {
    background: var(--color-primary-soft);
}

.btn-outline svg {
    width: 16px;
    height: 16px;
}

.reports-toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 24px;
}

.reports-toolbar .export-links {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: 10px 14px;
    align-items: center;
    gap: 10px;
}

.reports-toolbar .export-links span {
    font-size: 0.85rem;
    color: var(--color-text-muted, #6b7280);
    margin-right: 4px;
}