@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

/* =============================================================================
   DESIGN SYSTEM — Gestor Financeiro 2026
   ============================================================================= */

[data-theme="light"] {
    --color-bg: #F8FAFC;
    --color-card: #FFFFFF;
    --color-sidebar: #FFFFFF;
    --color-primary: #2563EB;
    --color-secondary: #3B82F6;
    --color-primary-hover: #1D4ED8;
    --color-primary-active: #1E40AF;
    --color-primary-muted: rgba(37, 99, 235, 0.1);
    --color-primary-border: rgba(37, 99, 235, 0.28);
    --color-border: #CBD5E1;
    --color-border-subtle: #E2E8F0;
    --color-text: #0F172A;
    --color-text-secondary: #475569;
    --color-text-muted: #64748B;
    --color-icon: #475569;
    --color-input: #FFFFFF;
    --color-income: #16A34A;
    --color-expense: #DC2626;
    --color-warning: #D97706;
    --color-overlay: rgba(15, 23, 42, 0.36);
    --color-shadow: rgba(15, 23, 42, 0.06);
    --color-shadow-md: rgba(15, 23, 42, 0.12);
    --shadow-card: 0 1px 2px rgba(15, 23, 42, 0.05), 0 2px 8px rgba(15, 23, 42, 0.04);
    --shadow-card-hover: 0 2px 4px rgba(15, 23, 42, 0.06), 0 8px 20px rgba(15, 23, 42, 0.07);
    --shadow-elevated: 0 8px 32px rgba(15, 23, 42, 0.12);
    --color-topbar: #FFFFFF;
    --color-scrollbar-track: #F1F5F9;
    --color-scrollbar-thumb: #94A3B8;
    --color-skeleton: #E2E8F0;
    --color-skeleton-shine: #F1F5F9;
    --color-chart-grid: #CBD5E1;
    --color-chart-expense: #94A3B8;
    --color-hover-bg: #F1F5F9;
    --color-active-bg: #E2E8F0;
    --color-disabled: #94A3B8;
    --color-toast-success-bg: #F0FDF4;
    --color-toast-success-border: rgba(22, 163, 74, 0.3);
    --color-toast-success-text: #166534;
    --color-toast-error-bg: #FEF2F2;
    --color-toast-error-border: rgba(220, 38, 38, 0.3);
    --color-toast-error-text: #991B1B;
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.625rem;
    --radius-xl: 0.75rem;
    --radius-2xl: 0.875rem;
    --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
    --transition-fast: 0.15s var(--ease-out);
    --transition-base: 0.2s var(--ease-out);
}

[data-theme="dark"] {
    --color-bg: #0F172A;
    --color-card: #1E293B;
    --color-sidebar: #111827;
    --color-primary: #60A5FA;
    --color-secondary: #3B82F6;
    --color-primary-hover: #3B82F6;
    --color-primary-active: #2563EB;
    --color-primary-muted: rgba(96, 165, 250, 0.14);
    --color-primary-border: rgba(96, 165, 250, 0.35);
    --color-border: #334155;
    --color-border-subtle: #253045;
    --color-text: #F8FAFC;
    --color-text-secondary: #CBD5E1;
    --color-text-muted: #94A3B8;
    --color-icon: #94A3B8;
    --color-input: #1E293B;
    --color-income: #4ADE80;
    --color-expense: #F87171;
    --color-warning: #FBBF24;
    --color-overlay: rgba(2, 6, 23, 0.68);
    --color-shadow: rgba(0, 0, 0, 0.28);
    --color-shadow-md: rgba(0, 0, 0, 0.42);
    --shadow-card: 0 1px 2px rgba(0, 0, 0, 0.28), 0 4px 12px rgba(0, 0, 0, 0.18);
    --shadow-card-hover: 0 2px 6px rgba(0, 0, 0, 0.32), 0 8px 24px rgba(0, 0, 0, 0.24);
    --shadow-elevated: 0 12px 40px rgba(0, 0, 0, 0.45);
    --color-topbar: #111827;
    --color-scrollbar-track: #0F172A;
    --color-scrollbar-thumb: #475569;
    --color-skeleton: #334155;
    --color-skeleton-shine: #475569;
    --color-chart-grid: #334155;
    --color-chart-expense: #64748B;
    --color-hover-bg: rgba(96, 165, 250, 0.08);
    --color-active-bg: rgba(96, 165, 250, 0.14);
    --color-disabled: #64748B;
    --color-toast-success-bg: rgba(6, 78, 59, 0.92);
    --color-toast-success-border: rgba(74, 222, 128, 0.35);
    --color-toast-success-text: #BBF7D0;
    --color-toast-error-bg: rgba(69, 10, 10, 0.92);
    --color-toast-error-border: rgba(248, 113, 113, 0.35);
    --color-toast-error-text: #FECACA;
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.625rem;
    --radius-xl: 0.75rem;
    --radius-2xl: 0.875rem;
    --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
    --transition-fast: 0.15s var(--ease-out);
    --transition-base: 0.2s var(--ease-out);
}

:root:not([data-theme]) {
    --color-bg: #F8FAFC;
    --color-card: #FFFFFF;
    --color-sidebar: #FFFFFF;
    --color-primary: #2563EB;
    --color-secondary: #3B82F6;
    --color-primary-hover: #1D4ED8;
    --color-primary-active: #1E40AF;
    --color-primary-muted: rgba(37, 99, 235, 0.1);
    --color-primary-border: rgba(37, 99, 235, 0.28);
    --color-border: #CBD5E1;
    --color-border-subtle: #E2E8F0;
    --color-text: #0F172A;
    --color-text-secondary: #475569;
    --color-text-muted: #64748B;
    --color-icon: #475569;
    --color-input: #FFFFFF;
    --color-income: #16A34A;
    --color-expense: #DC2626;
    --color-warning: #D97706;
    --color-overlay: rgba(15, 23, 42, 0.36);
    --color-shadow: rgba(15, 23, 42, 0.06);
    --color-shadow-md: rgba(15, 23, 42, 0.12);
    --shadow-card: 0 1px 2px rgba(15, 23, 42, 0.05), 0 2px 8px rgba(15, 23, 42, 0.04);
    --shadow-card-hover: 0 2px 4px rgba(15, 23, 42, 0.06), 0 8px 20px rgba(15, 23, 42, 0.07);
    --shadow-elevated: 0 8px 32px rgba(15, 23, 42, 0.12);
    --color-topbar: #FFFFFF;
    --color-scrollbar-track: #F1F5F9;
    --color-scrollbar-thumb: #94A3B8;
    --color-skeleton: #E2E8F0;
    --color-skeleton-shine: #F1F5F9;
    --color-chart-grid: #CBD5E1;
    --color-chart-expense: #94A3B8;
    --color-hover-bg: #F1F5F9;
    --color-active-bg: #E2E8F0;
    --color-disabled: #94A3B8;
    --color-toast-success-bg: #F0FDF4;
    --color-toast-success-border: rgba(22, 163, 74, 0.3);
    --color-toast-success-text: #166534;
    --color-toast-error-bg: #FEF2F2;
    --color-toast-error-border: rgba(220, 38, 38, 0.3);
    --color-toast-error-text: #991B1B;
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.625rem;
    --radius-xl: 0.75rem;
    --radius-2xl: 0.875rem;
    --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
    --transition-fast: 0.15s var(--ease-out);
    --transition-base: 0.2s var(--ease-out);
}

:root, [data-theme] {
    --primary: var(--color-primary);
    --primary-hover: var(--color-primary-hover);
    --dark-bg: var(--color-bg);
    --card-bg: var(--color-card);
    --input-bg: var(--color-input);
    --text-primary: var(--color-text);
    --text-secondary: var(--color-text-secondary);
    --placeholder: var(--color-text-muted);
    --border: var(--color-border);
}

*, *::before, *::after {
    box-sizing: border-box;
}

html {
    -webkit-text-size-adjust: 100%;
    scroll-behavior: smooth;
}

html.theme-transition,
html.theme-transition *,
html.theme-transition *::before,
html.theme-transition *::after {
    transition: background-color 0.2s ease, border-color 0.2s ease, color 0.15s ease !important;
}

html, body {
    margin: 0;
    padding: 0;
}

img, svg, video, canvas {
    max-width: 100%;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background-color: var(--color-bg);
    color: var(--color-text);
    overflow-x: clip;
    width: 100%;
    max-width: 100%;
    line-height: 1.5;
    font-size: 0.875rem;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, .brand-name {
    font-family: inherit;
    letter-spacing: -0.025em;
}

::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: var(--color-scrollbar-track);
}

::-webkit-scrollbar-thumb {
    background: var(--color-scrollbar-thumb);
    border-radius: 999px;
}

/* Typography */
.text-heading { color: var(--color-text); }
.text-body { color: var(--color-text-secondary); }
.text-muted { color: var(--color-text-muted); }
.text-primary-color { color: var(--color-primary); }
.text-income { color: var(--color-income); }
.text-expense { color: var(--color-expense); }
.text-warning { color: var(--color-warning); }

.link-primary {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.15s ease;
}

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

/* App layout */
.app-body {
    background-color: var(--color-bg);
    color: var(--color-text);
    min-height: 100vh;
}

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

.app-main {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    margin-left: 240px;
    transition: margin-left 0.2s ease;
}

.sidebar {
    width: 240px;
    height: 100vh;
    position: fixed;
    top: 0;
    left: 0;
    background-color: var(--color-sidebar);
    border-right: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    z-index: 50;
    transition: transform 0.2s ease;
}

.sidebar__brand {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    padding: 1.25rem 1rem;
    text-decoration: none;
    color: var(--color-text);
    font-weight: 600;
    font-size: 0.9375rem;
    border-bottom: 1px solid var(--color-border-subtle);
    flex-shrink: 0;
}

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

.sidebar__nav {
    flex: 1;
    overflow-y: auto;
    padding: 0.75rem 0.625rem 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.sidebar-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5625rem 0.75rem;
    color: var(--color-text-secondary);
    text-decoration: none;
    border-radius: var(--radius-lg);
    font-size: 0.8125rem;
    font-weight: 500;
    border-left: 3px solid transparent;
    transition: background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
    white-space: nowrap;
}

.sidebar-item svg {
    flex-shrink: 0;
    width: 1.25rem;
    height: 1.25rem;
    color: var(--color-icon);
    transition: color var(--transition-fast);
}

.sidebar-item:hover {
    background-color: var(--color-primary-muted);
    color: var(--color-text);
}

.sidebar-item:hover svg {
    color: var(--color-primary);
}

.sidebar-item.active {
    background-color: var(--color-primary-muted);
    color: var(--color-primary);
    font-weight: 600;
    border-left-color: var(--color-primary);
}

.sidebar-item.active svg {
    color: var(--color-primary);
}

.app-topbar {
    position: sticky;
    top: 0;
    z-index: 40;
    height: 3.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 1.5rem;
    gap: 1rem;
    background-color: var(--color-topbar);
    border-bottom: 1px solid var(--color-border);
}

.app-topbar__start {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    min-width: 0;
    flex: 1;
}

.app-topbar__title {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-text);
    margin: 0;
}

.app-topbar__actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-shrink: 0;
}

.app-topbar__menu-btn {
    display: none;
    align-items: center;
    justify-content: center;
    width: 2.25rem;
    height: 2.25rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    background: var(--color-card);
    color: var(--color-icon);
    cursor: pointer;
    transition: background-color var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
}

.app-topbar__menu-btn:hover {
    background-color: var(--color-hover-bg);
    border-color: var(--color-primary-border);
    color: var(--color-primary);
}

.app-topbar__menu-btn:active {
    background-color: var(--color-active-bg);
}

.app-topbar__logout {
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0.4375rem 0.75rem;
    border-radius: var(--radius-lg);
    transition: color var(--transition-fast), background-color var(--transition-fast);
}

.app-topbar__logout:hover {
    color: var(--color-text);
    background-color: var(--color-hover-bg);
}

.app-topbar__logout:active {
    background-color: var(--color-active-bg);
}

.app-header__logout-short { display: none; }

@media (max-width: 480px) {
    .app-header__logout-full { display: none; }
    .app-header__logout-short { display: inline; }
}

.main-content {
    flex: 1;
    min-height: 0;
    width: 100%;
}

.page-container {
    padding: 2rem 1.5rem 3rem;
    max-width: 72rem;
    margin: 0 auto;
    width: 100%;
}

@media (min-width: 1024px) {
    .page-container {
        padding: 2.5rem 2rem 3.5rem;
    }
}

.page-header {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    margin-bottom: 2rem;
}

@media (min-width: 768px) {
    .page-header {
        flex-direction: row;
        align-items: flex-end;
        justify-content: space-between;
    }
}

.page-header__title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text);
    margin: 0 0 0.375rem;
    line-height: 1.25;
}

.page-header__subtitle {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    margin: 0;
    max-width: 36rem;
    line-height: 1.6;
}

.page-header__actions {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    flex-wrap: wrap;
}

.sidebar-backdrop {
    position: fixed;
    inset: 0;
    background-color: var(--color-overlay);
    z-index: 45;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease;
}

.sidebar-backdrop.visible {
    opacity: 1;
    pointer-events: auto;
}

@media (max-width: 1024px) {
    .app-main { margin-left: 0; }
    .sidebar { transform: translateX(-100%); }
    .sidebar.open {
        transform: translateX(0);
        box-shadow: 4px 0 24px var(--color-shadow-md);
    }
    .app-topbar__menu-btn { display: inline-flex; }
}

@media (min-width: 1025px) {
    .sidebar-backdrop { display: none; }
}

/* Components */
.card {
    background-color: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-2xl);
    padding: 1.5rem;
    box-shadow: var(--shadow-card);
    transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.card--flat {
    box-shadow: none;
}

.card--hover:hover {
    border-color: var(--color-primary-border);
    box-shadow: var(--shadow-card-hover);
}

.stat-card {
    background-color: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-2xl);
    padding: 1.25rem 1.5rem;
    box-shadow: var(--shadow-card);
    transition: border-color var(--transition-base), box-shadow var(--transition-base), transform var(--transition-base);
}

.stat-card:hover {
    border-color: var(--color-primary-border);
    box-shadow: var(--shadow-card-hover);
}

.stat-card__label {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-text-muted);
    margin: 0 0 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.stat-card__value {
    font-size: 1.625rem;
    font-weight: 700;
    color: var(--color-text);
    margin: 0;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

.stat-card__hint {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    margin: 0.5rem 0 0;
}

.surface-inset {
    background-color: var(--color-hover-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
}

/* Buttons */
.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    background-color: var(--color-primary);
    color: #FFFFFF;
    padding: 0.5625rem 1rem;
    border: none;
    border-radius: var(--radius-lg);
    font-size: 0.8125rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    text-decoration: none;
    transition: background-color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
    box-shadow: 0 1px 2px var(--color-shadow), 0 1px 3px rgba(37, 99, 235, 0.2);
}

.btn-primary:hover {
    background-color: var(--color-primary-hover);
    box-shadow: 0 2px 6px var(--color-shadow-md), 0 2px 8px rgba(37, 99, 235, 0.25);
}

.btn-primary:active {
    background-color: var(--color-primary-active);
    transform: scale(0.98);
}

.btn-primary:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

.btn-primary:disabled {
    opacity: 0.45;
    cursor: not-allowed;
    box-shadow: none;
    transform: none;
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    background: var(--color-card);
    color: var(--color-text);
    padding: 0.5625rem 1rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    font-size: 0.8125rem;
    font-weight: 500;
    font-family: inherit;
    cursor: pointer;
    text-decoration: none;
    transition: background-color var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
}

.btn-secondary:hover {
    background-color: var(--color-hover-bg);
    border-color: var(--color-primary-border);
    color: var(--color-text);
}

.btn-secondary:active {
    background-color: var(--color-active-bg);
}

.btn-secondary:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

.btn-secondary:disabled {
    opacity: 0.45;
    cursor: not-allowed;
}

.btn-ghost {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.375rem;
    background: transparent;
    color: var(--color-primary);
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--color-primary-border);
    border-radius: var(--radius-lg);
    font-size: 0.8125rem;
    font-weight: 500;
    font-family: inherit;
    cursor: pointer;
    text-decoration: none;
    transition: background-color var(--transition-fast), border-color var(--transition-fast);
}

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

.btn-ghost:active {
    background-color: var(--color-active-bg);
}

.btn-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.125rem;
    height: 2.125rem;
    padding: 0;
    border: none;
    border-radius: var(--radius-md);
    background: transparent;
    color: var(--color-icon);
    cursor: pointer;
    transition: color var(--transition-fast), background-color var(--transition-fast);
}

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

.btn-icon:active {
    background-color: var(--color-active-bg);
}

.btn-icon--danger:hover {
    color: var(--color-expense);
    background-color: rgba(220, 38, 38, 0.08);
}

.btn-link {
    background: none;
    border: none;
    padding: 0;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--color-primary);
    cursor: pointer;
    text-decoration: none;
    font-family: inherit;
}

.btn-link:hover {
    color: var(--color-primary-hover);
    text-decoration: underline;
}

/* Inputs */
.input-field,
select.input-field,
textarea.input-field {
    background-color: var(--color-input);
    border: 1px solid var(--color-border);
    color: var(--color-text);
    padding: 0.5625rem 0.75rem;
    border-radius: var(--radius-lg);
    width: 100%;
    font-size: 0.8125rem;
    font-family: inherit;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-fast);
}

.input-field::placeholder {
    color: var(--color-text-muted);
}

.input-field:hover:not(:disabled) {
    border-color: var(--color-text-muted);
}

.input-field:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-muted);
}

.input-field:disabled {
    opacity: 0.55;
    cursor: not-allowed;
    background-color: var(--color-hover-bg);
    color: var(--color-disabled);
}

.form-label {
    display: block;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    margin-bottom: 0.375rem;
}

.form-label--upper {
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-muted);
}

.form-message {
    margin-bottom: 1rem;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-md);
    border: 1px solid;
    font-size: 0.8125rem;
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
}

.form-message--error {
    background-color: var(--color-toast-error-bg);
    border-color: var(--color-toast-error-border);
    color: var(--color-toast-error-text);
}

.form-message--success {
    background-color: var(--color-toast-success-bg);
    border-color: var(--color-toast-success-border);
    color: var(--color-toast-success-text);
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8125rem;
    color: var(--color-text-secondary);
    cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
    width: 1rem;
    height: 1rem;
    accent-color: var(--color-primary);
}

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.1875rem 0.5rem;
    font-size: 0.6875rem;
    font-weight: 600;
    border-radius: 999px;
}

.badge-income {
    background-color: rgba(22, 163, 74, 0.1);
    color: var(--color-income);
}

.badge-expense {
    background-color: rgba(220, 38, 38, 0.1);
    color: var(--color-expense);
}

.badge-warning {
    background-color: rgba(245, 158, 11, 0.1);
    color: var(--color-warning);
}

/* Tables — Stripe-like */
.data-table {
    width: 100%;
    text-align: left;
    border-collapse: collapse;
}

.data-table thead tr {
    border-bottom: 1px solid var(--color-border);
    background-color: var(--color-hover-bg);
}

.data-table th {
    padding: 0.75rem 1.25rem;
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-secondary);
    background: transparent;
}

.data-table td {
    padding: 0.875rem 1.25rem;
    font-size: 0.8125rem;
    color: var(--color-text-secondary);
    vertical-align: middle;
}

.data-table tbody tr {
    border-bottom: 1px solid var(--color-border-subtle);
    transition: background-color var(--transition-fast);
}

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

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

.data-table .cell-heading {
    font-weight: 500;
    color: var(--color-text);
}

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

.card--table .data-table th:first-child,
.card--table .data-table td:first-child {
    padding-left: 1.5rem;
}

.card--table .data-table th:last-child,
.card--table .data-table td:last-child {
    padding-right: 1.5rem;
}

.empty-state {
    padding: 3rem 1.5rem;
    text-align: center;
}

.empty-state__title {
    font-weight: 600;
    font-size: 0.9375rem;
    color: var(--color-text);
    margin: 0 0 0.5rem;
}

.empty-state__text {
    font-size: 0.8125rem;
    color: var(--color-text-muted);
    margin: 0 0 1.25rem;
    line-height: 1.6;
}

/* Modal */
.modal-backdrop {
    position: fixed;
    inset: 0;
    z-index: 60;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    background-color: var(--color-overlay);
}

.modal-backdrop.is-open {
    display: flex;
}

.modal {
    width: 100%;
    max-width: 28rem;
    background-color: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-2xl);
    padding: 1.5rem;
    box-shadow: var(--shadow-elevated);
}

.modal__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.25rem;
}

.modal__title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text);
    margin: 0;
}

.modal__close {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2rem;
    height: 2rem;
    border: none;
    border-radius: var(--radius-sm);
    background: transparent;
    color: var(--color-icon);
    cursor: pointer;
    transition: color 0.15s ease, background-color 0.15s ease;
}

.modal__close:hover {
    color: var(--color-text);
    background-color: var(--color-hover-bg);
}

.modal__form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

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

/* Theme toggle */
.theme-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.25rem;
    height: 2.25rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    background: var(--color-card);
    color: var(--color-icon);
    cursor: pointer;
    transition: background-color var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
}

.theme-toggle:hover {
    background-color: var(--color-primary-muted);
    border-color: var(--color-primary-border);
    color: var(--color-primary);
}

.theme-toggle:active {
    background-color: var(--color-active-bg);
}

.theme-toggle:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

.theme-toggle__icon--dark,
[data-theme="dark"] .theme-toggle__icon--light {
    display: none;
}

[data-theme="dark"] .theme-toggle__icon--dark {
    display: block;
}

/* Toast */
#app-toast-root {
    position: fixed;
    top: 4rem;
    right: 1rem;
    z-index: 120;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    width: min(92vw, 22rem);
    pointer-events: none;
}

.app-toast {
    padding: 0.75rem 1rem;
    border-radius: var(--radius-md);
    border: 1px solid;
    font-size: 0.8125rem;
    box-shadow: 0 4px 12px var(--color-shadow-md);
    pointer-events: auto;
}

.app-toast--success {
    background-color: var(--color-toast-success-bg);
    border-color: var(--color-toast-success-border);
    color: var(--color-toast-success-text);
}

.app-toast--error {
    background-color: var(--color-toast-error-bg);
    border-color: var(--color-toast-error-border);
    color: var(--color-toast-error-text);
}

/* Confirm dialog */
.confirm-overlay {
    position: fixed;
    inset: 0;
    z-index: 130;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    background-color: var(--color-overlay);
}

.confirm-dialog {
    width: 100%;
    max-width: 28rem;
}

.confirm-dialog__actions {
    display: flex;
    gap: 0.625rem;
    margin-top: 1.25rem;
}

.confirm-dialog__actions .btn-primary {
    margin-left: auto;
}

/* Transaction list item */
.tx-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem;
    border-radius: var(--radius-md);
    transition: background-color 0.12s ease;
}

.tx-item:hover {
    background-color: var(--color-hover-bg);
}

.tx-item__icon {
    width: 2.25rem;
    height: 2.25rem;
    border-radius: 999px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8125rem;
    font-weight: 600;
    flex-shrink: 0;
}

.tx-item__icon--income {
    background-color: rgba(22, 163, 74, 0.1);
    color: var(--color-income);
}

.tx-item__icon--expense {
    background-color: rgba(220, 38, 38, 0.08);
    color: var(--color-expense);
}

.metric-editable {
    cursor: pointer;
    border-radius: var(--radius-sm);
    padding: 0.125rem 0.25rem;
    margin: -0.125rem -0.25rem;
    transition: background-color 0.12s ease;
}

.metric-editable:hover {
    background-color: var(--color-primary-muted);
}

.progress-bar {
    width: 100%;
    height: 0.25rem;
    background-color: var(--color-border);
    border-radius: 999px;
    overflow: hidden;
}

.progress-bar__fill {
    height: 100%;
    background-color: var(--color-primary);
    border-radius: 999px;
    transition: width 0.3s ease;
}

.progress-bar__fill--income {
    background-color: var(--color-income);
}

.filters-panel { margin-bottom: 2rem; }

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

@media (min-width: 768px) {
    .filters-grid {
        grid-template-columns: 2fr 1fr 1fr 1fr;
    }
}

/* Auth pages */
.auth-page {
    min-height: 100vh;
    display: flex;
    background: var(--color-bg);
}

.auth-page__toggle {
    position: absolute;
    top: 1.25rem;
    right: 1.25rem;
    z-index: 2;
}

.auth-card {
    width: 100%;
    max-width: 28rem;
    position: relative;
}

.auth-card--wide {
    max-width: 36rem;
}

.auth-card__back {
    position: absolute;
    top: 1.25rem;
    left: 1.25rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.25rem;
    height: 2.25rem;
    border-radius: var(--radius-md, 0.5rem);
    color: var(--color-text-muted);
    transition: color 0.15s ease, background-color 0.15s ease;
}

.auth-card__back:hover {
    color: var(--color-text);
    background: var(--color-bg-muted, rgba(15, 23, 42, 0.06));
}

.auth-card__header {
    text-align: center;
    margin-bottom: 2rem;
}

.auth-card__title {
    font-size: 1.375rem;
    font-weight: 700;
    color: var(--color-text);
    margin: 0 0 0.375rem;
}

.auth-card__subtitle {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    margin: 0;
}

.auth-card__footer {
    text-align: center;
    font-size: 0.8125rem;
    color: var(--color-text-muted);
    margin-top: 1.5rem;
}

.auth-divider {
    border-top: 1px solid var(--color-border);
    padding-top: 1rem;
    margin-top: 0.5rem;
}

/* Manual page */
.doc-page {
    min-height: 100vh;
    background: var(--color-bg);
}

.doc-header {
    border-bottom: 1px solid var(--color-border);
    padding: 1rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 48rem;
    margin: 0 auto;
    background: var(--color-card);
}

.doc-content {
    max-width: 48rem;
    margin: 0 auto;
    padding: 2.5rem 1.5rem 3rem;
}

.doc-section {
    margin-bottom: 0;
}

.doc-section h2 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text);
    margin: 0 0 0.75rem;
}

.doc-section p,
.doc-section li {
    font-size: 0.8125rem;
    color: var(--color-text-secondary);
    line-height: 1.65;
}

.doc-section ul {
    padding-left: 1.25rem;
    margin: 0;
}

.doc-section li + li {
    margin-top: 0.375rem;
}

/* Skeleton */
.skeleton-block {
    background: linear-gradient(90deg, var(--color-skeleton) 25%, var(--color-skeleton-shine) 50%, var(--color-skeleton) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.2s infinite;
    border-radius: var(--radius-sm);
}

@keyframes shimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

.skeleton-row {
    padding: 0.75rem;
    border-radius: var(--radius-md);
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
}

/* Charts */
.report-chart-wrap {
    min-height: 280px;
    height: 100%;
}

.chart-card {
    display: flex;
    flex-direction: column;
    min-height: 360px;
}

.chart-card__title {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--color-text);
    margin: 0 0 1.25rem;
}

.goal-field {
    display: flex;
    flex-direction: column;
}

.goal-field-hint {
    margin-top: 0.375rem;
    min-height: 2.5rem;
    font-size: 0.75rem;
    line-height: 1.25rem;
    color: var(--color-text-muted);
}

.profile-avatar {
    width: 5rem;
    height: 5rem;
    border-radius: 999px;
    background-color: var(--color-primary-muted);
    color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    border: 2px solid var(--color-primary-border);
}

.category-icon {
    width: 3rem;
    height: 3rem;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: transform var(--transition-fast);
}

#categories-grid .card:hover .category-icon {
    transform: scale(1.04);
}

.category-icon--income {
    background-color: rgba(22, 163, 74, 0.1);
    color: var(--color-income);
}

.category-icon--expense {
    background-color: rgba(220, 38, 38, 0.08);
    color: var(--color-expense);
}

.plan-item {
    padding: 0.875rem 1rem;
    border-radius: var(--radius-lg);
    background-color: var(--color-card);
    border: 1px solid var(--color-border);
    transition: border-color var(--transition-fast), background-color var(--transition-fast);
}

.plan-item:hover {
    border-color: var(--color-primary-border);
    background-color: var(--color-hover-bg);
}

.plan-item--warning {
    border-color: rgba(245, 158, 11, 0.3);
    background-color: rgba(245, 158, 11, 0.04);
}

.section-title {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--color-text);
    margin: 0 0 1rem;
}

.metrics-hint {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

/* Utility */
.hidden { display: none !important; }
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.divider { border-top: 1px solid var(--color-border); }

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

.text-right { text-align: right; }
.w-full { width: 100%; }
.flex-1 { flex: 1; }
.shrink-0 { flex-shrink: 0; }
.whitespace-nowrap { white-space: nowrap; }
.truncate {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }
.font-medium { font-weight: 500; }
.text-sm { font-size: 0.8125rem; }
.text-xs { font-size: 0.75rem; }
.text-lg { font-size: 1.125rem; }
.text-xl { font-size: 1.25rem; }
.text-2xl { font-size: 1.5rem; }
.text-center { text-align: center; }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-6 { margin-bottom: 1.5rem; }
.mb-8 { margin-bottom: 2rem; }
.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 0.75rem; }
.mt-4 { margin-top: 1rem; }
.mt-10 { margin-top: 2.5rem; }
.py-3 { padding-top: 0.75rem; padding-bottom: 0.75rem; }
.py-4 { padding-top: 1rem; padding-bottom: 1rem; }
.py-8 { padding-top: 2rem; padding-bottom: 2rem; }
.px-8 { padding-left: 2rem; padding-right: 2rem; }
.p-3 { padding: 0.75rem; }
.p-4 { padding: 1rem; }
.pt-4 { padding-top: 1rem; }
.pt-6 { padding-top: 1.5rem; }
.gap-2 { gap: 0.5rem; }
.gap-3 { gap: 0.75rem; }
.gap-4 { gap: 1rem; }
.gap-6 { gap: 1.5rem; }
.space-y-1 > * + * { margin-top: 0.25rem; }
.space-y-2 > * + * { margin-top: 0.5rem; }
.space-y-3 > * + * { margin-top: 0.75rem; }
.space-y-4 > * + * { margin-top: 1rem; }
.space-y-6 > * + * { margin-top: 1.5rem; }
.min-w-0 { min-width: 0; }
.min-h-\[300px\] { min-height: 300px; }
.w-28 { width: 7rem; }
.w-32 { width: 8rem; }
.w-36 { width: 9rem; }
.max-w-lg { max-width: 32rem; }
.col-span-2 { grid-column: span 2 / span 2; }
.col-span-full { grid-column: 1 / -1; }
.overflow-x-auto { overflow-x: auto; }
.flex { display: flex; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.flex-wrap { flex-wrap: wrap; }
.grid { display: grid; }
.grid-cols-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
.grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }

@media (min-width: 640px) {
    .sm\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .sm\:col-span-2 { grid-column: span 2 / span 2; }
}

@media (min-width: 768px) {
    .md\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .md\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .md\:grid-cols-5 { grid-template-columns: repeat(5, minmax(0, 1fr)); }
}

@media (min-width: 1024px) {
    .lg\:col-span-2 { grid-column: span 2 / span 2; }
    .lg\:col-span-3 { grid-column: span 3 / span 3; }
    .lg\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .lg\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

/* --- Theme refinements --- */
[data-theme="dark"] .sidebar {
    box-shadow: 1px 0 0 var(--color-border), 4px 0 24px rgba(0, 0, 0, 0.2);
}

[data-theme="dark"] .app-topbar {
    box-shadow: 0 1px 0 var(--color-border);
}

[data-theme="dark"] .btn-primary {
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 1px 4px rgba(96, 165, 250, 0.2);
}

[data-theme="dark"] .btn-primary:hover {
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.35), 0 2px 12px rgba(96, 165, 250, 0.25);
}

@media (prefers-reduced-motion: reduce) {
    .stat-card:hover,
    .btn-primary:active {
        transform: none;
    }
}