:root {
    --radius: 16px;
    --shadow: 0 10px 40px rgba(0, 0, 0, 0.25);
    /* Colores base: se sobreescriben con #theme-vars desde PHP */
    --bg: #0f172a;
    --bg-soft: #111827;
    --surface: #1e293b;
    --surface-hover: #243044;
    --border: #334155;
    --text: #f8fafc;
    --text-muted: #94a3b8;
    --primary: #6366f1;
    --primary-hover: #4f46e5;
    --accent: #6366f1;
    --success: #22c55e;
    --danger: #ef4444;
    --warning: #f59e0b;
}

* {
    box-sizing: border-box;
}

html, body {
    margin: 0;
    padding: 0;
    font-family: 'DM Sans', system-ui, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.5;
}

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

a:hover {
    text-decoration: underline;
}

/* Auth pages */
.auth-page {
    min-height: 100vh;
    background:
        radial-gradient(circle at top right, color-mix(in srgb, var(--primary) 25%, transparent), transparent 40%),
        radial-gradient(circle at bottom left, color-mix(in srgb, var(--success) 15%, transparent), transparent 35%),
        var(--bg);
}

.auth-shell {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 24px;
}

.auth-card {
    width: 100%;
    max-width: 440px;
    background: rgba(30, 41, 59, 0.9);
    border: 1px solid var(--border);
    border-radius: 24px;
    padding: 32px;
    box-shadow: var(--shadow);
    backdrop-filter: blur(12px);
}

.auth-card-wide {
    max-width: 560px;
}

.auth-alert {
    margin-bottom: 16px;
    padding: 12px 14px;
    border-radius: 12px;
    font-size: 0.9rem;
    line-height: 1.45;
}

.auth-alert-error {
    background: rgba(239, 68, 68, 0.12);
    border: 1px solid rgba(239, 68, 68, 0.35);
    color: #fca5a5;
}

.auth-header {
    text-align: center;
    margin-bottom: 28px;
}

.auth-logo {
    font-size: 2.5rem;
    margin-bottom: 8px;
}

.auth-header h1 {
    margin: 0 0 8px;
    font-size: 1.75rem;
}

.auth-header p {
    margin: 0;
    color: var(--text-muted);
}

.auth-footer {
    text-align: center;
    margin-top: 24px;
    color: var(--text-muted);
}

/* App layout */
.app-shell {
    display: grid;
    grid-template-columns: 260px 1fr;
    min-height: 100vh;
}

.sidebar {
    background: var(--bg-soft);
    border-right: 1px solid var(--border);
    padding: 24px 16px;
    display: flex;
    flex-direction: column;
    position: sticky;
    top: 0;
    height: 100vh;
    border-left: 4px solid var(--primary);
}

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary);
    text-decoration: none;
    padding: 8px 12px;
    margin-bottom: 24px;
}

.brand-icon {
    font-size: 1.5rem;
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 4px;
    flex: 1;
}

.nav-link {
    color: var(--text-muted);
    padding: 12px 14px;
    border-radius: 12px;
    text-decoration: none;
    transition: 0.2s;
}

.nav-link:hover,
.nav-link.active {
    background: color-mix(in srgb, var(--primary) 14%, transparent);
    color: var(--text);
    text-decoration: none;
    border-left: 3px solid var(--primary);
    padding-left: 11px;
}

.sidebar-footer {
    border-top: 1px solid var(--border);
    padding-top: 16px;
}

.logout-form {
    margin: 12px 0 0;
}

.user-mini strong {
    display: block;
}

.user-mini small {
    color: var(--text-muted);
}

.app-content {
    min-width: 0;
}

.topbar {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px 28px;
    border-bottom: 1px solid var(--border);
    background: color-mix(in srgb, var(--surface) 92%, transparent);
    backdrop-filter: blur(8px);
    position: sticky;
    top: 0;
    z-index: 10;
}

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

.menu-toggle {
    display: none;
    background: var(--surface);
    border: 1px solid var(--border);
    color: var(--text);
    border-radius: 10px;
    padding: 8px 12px;
    cursor: pointer;
}

.page-content {
    padding: 24px 28px 40px;
}

/* Components */
.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    margin-bottom: 20px;
}

.card-narrow {
    max-width: 640px;
}

.theme-preview {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin: 16px 0 20px;
    padding: 16px 18px;
    border-radius: 14px;
    border: 2px solid var(--primary);
    background: color-mix(in srgb, var(--primary) 12%, var(--surface));
}

.theme-preview span {
    font-weight: 600;
    color: var(--text);
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 20px;
}

.card-header h2 {
    margin: 0;
    font-size: 1.1rem;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-bottom: 20px;
}

.stat-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
}

.stat-label {
    display: block;
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 8px;
}

.stat-value {
    font-size: 1.6rem;
}

.stat-income { border-left: 4px solid var(--success); }
.stat-expense { border-left: 4px solid var(--danger); }
.stat-balance { border-left: 4px solid var(--primary); }

.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-group label {
    font-size: 0.9rem;
    font-weight: 500;
}

.form-group small {
    color: var(--text-muted);
    font-size: 0.8rem;
}

input, select, textarea {
    background: var(--bg-soft);
    border: 1px solid var(--border);
    border-radius: 12px;
    color: var(--text);
    padding: 12px 14px;
    font: inherit;
}

input:focus, select:focus, textarea:focus {
    outline: 2px solid color-mix(in srgb, var(--primary) 50%, transparent);
    border-color: var(--primary);
}

input:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    border: none;
    border-radius: 12px;
    padding: 12px 18px;
    font: inherit;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    transition: 0.2s;
}

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

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

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

.btn-ghost:hover {
    background: var(--surface-hover);
    color: var(--text);
    text-decoration: none;
}

.btn-danger {
    background: rgba(239, 68, 68, 0.15);
    color: #fca5a5;
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.btn-sm {
    padding: 8px 12px;
    font-size: 0.85rem;
}

.btn-block {
    width: 100%;
}

.table-wrap {
    overflow-x: auto;
}

.table {
    width: 100%;
    border-collapse: collapse;
}

.table th,
.table td {
    padding: 12px 10px;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.table th {
    color: var(--text-muted);
    font-size: 0.85rem;
    font-weight: 500;
}

.text-success { color: var(--success); }
.text-danger { color: var(--danger); }

.cat-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    border-radius: 999px;
    background: color-mix(in srgb, var(--cat-color) 15%, transparent);
    color: var(--cat-color);
    font-size: 0.9rem;
}

.period-bar {
    margin-bottom: 20px;
}

.period-form {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.period-form select {
    min-width: 140px;
}

.category-list,
.budget-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.category-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 12px;
    border: 1px solid var(--border);
    border-radius: 12px;
}

.category-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.category-icon {
    width: 42px;
    height: 42px;
    display: grid;
    place-items: center;
    border-radius: 12px;
    font-size: 1.2rem;
}

.category-info small {
    display: block;
    color: var(--text-muted);
}

.budget-head {
    display: flex;
    justify-content: space-between;
    margin-bottom: 8px;
    font-size: 0.95rem;
}

.progress-bar {
    height: 10px;
    background: var(--bg-soft);
    border-radius: 999px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    border-radius: 999px;
    transition: width 0.3s;
}

.progress-fill.over {
    background: var(--danger) !important;
}

.empty-state {
    color: var(--text-muted);
    text-align: center;
    padding: 24px 12px;
}

.tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 20px;
}

.tab {
    padding: 10px 16px;
    border-radius: 12px;
    color: var(--text-muted);
    text-decoration: none;
    border: 1px solid transparent;
}

.tab.active,
.tab:hover {
    background: var(--surface);
    color: var(--text);
    border-color: var(--border);
    text-decoration: none;
}

.toast {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1000;
    padding: 14px 18px;
    border-radius: 12px;
    box-shadow: var(--shadow);
    animation: slideIn 0.3s ease;
}

.toast-success {
    background: rgba(34, 197, 94, 0.15);
    border: 1px solid rgba(34, 197, 94, 0.4);
    color: #86efac;
}

.toast-error {
    background: rgba(239, 68, 68, 0.15);
    border: 1px solid rgba(239, 68, 68, 0.4);
    color: #fca5a5;
}

@keyframes slideIn {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

/* Perfil de gastos: mensual vs viaje */
.perfil-bar {
    margin-bottom: 20px;
    padding: 16px 18px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 16px;
}

.perfil-bar-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.perfil-bar-intro {
    flex: 1;
    min-width: 0;
}

.perfil-bar-action {
    flex-shrink: 0;
    white-space: nowrap;
}

.perfil-bar-kicker {
    display: block;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 4px;
}

.perfil-bar-hint {
    margin: 0;
    font-size: 0.875rem;
    color: var(--text-muted);
    line-height: 1.4;
}

.perfil-bar-toolbar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-top: 14px;
    padding-top: 14px;
    border-top: 1px solid var(--border);
}

.perfil-tabs-form {
    flex: 1 1 auto;
    min-width: 0;
    margin: 0;
}

.perfil-tabs {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
}

.perfil-tab {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    height: 40px;
    padding: 0 14px;
    border-radius: 10px;
    border: 1px solid var(--border);
    background: var(--bg-soft);
    color: var(--text-muted);
    font: inherit;
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    white-space: nowrap;
    transition: border-color 0.15s, background 0.15s, color 0.15s;
}

.perfil-tab:hover {
    border-color: var(--primary);
    color: var(--text);
}

.perfil-tab.is-active {
    background: color-mix(in srgb, var(--primary) 18%, transparent);
    border-color: color-mix(in srgb, var(--primary) 45%, transparent);
    color: var(--text);
}

.perfil-tab-viaje.is-active {
    background: color-mix(in srgb, var(--viaje-color) 18%, transparent);
    border-color: color-mix(in srgb, var(--viaje-color) 50%, transparent);
}

.perfil-tab-icon {
    font-size: 1rem;
    line-height: 1;
}

.perfil-period-form {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
    margin: 0;
}

.perfil-period-label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-muted);
    white-space: nowrap;
}

.perfil-period-form select,
.perfil-bar-action {
    height: 40px;
}

.perfil-period-form select {
    min-width: 100px;
    padding: 0 12px;
    border-radius: 10px;
    border: 1px solid var(--border);
    background: var(--bg-soft);
    color: var(--text);
    font: inherit;
    font-size: 0.875rem;
}

.perfil-viaje-resumen {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px 16px;
    flex-shrink: 0;
    font-size: 0.875rem;
    color: var(--text-muted);
}

.perfil-viaje-resumen span:first-child {
    font-weight: 600;
    color: var(--text);
}

.contexto-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    border-radius: 999px;
    font-size: 0.8rem;
    font-weight: 600;
    white-space: nowrap;
}

.contexto-mes {
    background: color-mix(in srgb, var(--primary) 12%, transparent);
    color: var(--text-muted);
    border: 1px solid var(--border);
}

.contexto-aventura {
    background: color-mix(in srgb, var(--success) 12%, transparent);
    color: var(--text);
    border: 1px solid color-mix(in srgb, var(--success) 30%, transparent);
}

.perfil-mensual-note {
    margin-bottom: 20px;
    padding: 14px 18px;
}

.perfil-mensual-note p {
    margin: 0;
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Legacy vista-bar (compat) */
.vista-bar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    margin-bottom: 20px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 14px;
}

.vista-bar-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 600;
}

.vista-bar-form,
.vista-switch-form {
    display: flex;
    align-items: center;
    gap: 8px;
}

.vista-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    border-radius: 999px;
    font-size: 0.875rem;
    font-weight: 600;
}

.vista-pill-mensual {
    background: color-mix(in srgb, var(--primary) 15%, transparent);
    color: var(--primary);
    border: 1px solid color-mix(in srgb, var(--primary) 35%, transparent);
}

.vista-pill-viaje {
    background: color-mix(in srgb, var(--viaje-color) 18%, transparent);
    color: var(--text);
    border: 1px solid color-mix(in srgb, var(--viaje-color) 45%, transparent);
}

.vista-switch-form select {
    min-width: 180px;
}

.viaje-banner {
    border-left: 4px solid var(--viaje-color);
    margin-bottom: 20px;
}

.viaje-banner-inner {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 16px;
    padding: 20px;
}

.viaje-banner-icon {
    font-size: 2.5rem;
}

.viaje-banner h2 {
    margin: 0 0 4px;
}

.viaje-banner p {
    margin: 0;
    color: var(--text-muted);
}

.viaje-presupuesto {
    margin-left: auto;
    min-width: 180px;
}

.viaje-active-box {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 16px;
    border-radius: 12px;
    background: color-mix(in srgb, var(--viaje-color) 12%, transparent);
    border: 1px solid color-mix(in srgb, var(--viaje-color) 35%, transparent);
}

.viaje-active-icon {
    font-size: 2rem;
}

.viaje-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding: 16px;
}

.viaje-item {
    padding: 16px;
    border-radius: 14px;
    border: 1px solid var(--border);
    border-left: 4px solid var(--viaje-color);
    background: var(--surface);
}

.viaje-item-head {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 10px;
}

.viaje-item-icon {
    font-size: 1.75rem;
}

.viaje-item-head strong {
    display: block;
}

.viaje-item-head small {
    color: var(--text-muted);
}

.viaje-item-stats {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: 12px;
}

.viaje-item-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
}

@media (max-width: 960px) {
    .app-shell {
        grid-template-columns: 1fr;
    }

    .sidebar {
        position: fixed;
        left: -280px;
        width: 260px;
        z-index: 100;
        transition: left 0.3s;
    }

    .sidebar.open {
        left: 0;
    }

    .menu-toggle {
        display: inline-flex;
    }

    .stats-grid,
    .grid-2,
    .form-grid {
        grid-template-columns: 1fr;
    }

    .page-content {
        padding: 16px;
    }

    .perfil-bar-head {
        flex-direction: column;
        align-items: stretch;
    }

    .perfil-bar-action {
        width: 100%;
        justify-content: center;
    }

    .perfil-bar-toolbar {
        flex-direction: column;
        align-items: stretch;
    }

    .perfil-tabs {
        flex-wrap: nowrap;
        overflow-x: auto;
        padding-bottom: 4px;
    }

    .perfil-period-form {
        width: 100%;
    }

    .perfil-period-form select {
        flex: 1;
        min-width: 0;
    }
}