/*
============================================================
  CONTROLCASH DESIGN SYSTEM
============================================================
  Normas aplicadas:
    - ISO 9126: Usabilidad - Comprensibilidad, Aprendibilidad
    - ISO/IEC 25000 (SQuaRE): Calidad en uso
    - ISO 14598: Evaluación de interfaz de usuario
    - ISO/IEC 27001: Seguridad de la información
    - OWASP: Seguridad en aplicaciones
============================================================
  Sistema de diseño profesional con estilo Glass UI
  Transparencias, blur y reflejos dinámicos.
============================================================
*/

/* ============================================================
   RESET & VARIABLES GLOBALES
   ============================================================ */
:root {
    /* --- Colores Glass UI --- */
    --glass-bg: rgba(255, 255, 255, 0.12);
    --glass-bg-hover: rgba(255, 255, 255, 0.18);
    --glass-bg-active: rgba(255, 255, 255, 0.25);
    --glass-border: rgba(255, 255, 255, 0.2);
    --glass-border-hover: rgba(255, 255, 255, 0.35);
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
    --glass-shadow-elevated: 0 16px 48px rgba(0, 0, 0, 0.18);
    --glass-blur: 20px;
    --glass-blur-heavy: 40px;

    /* --- Colores del Sistema --- */
    --color-primary: #6C63FF;
    --color-primary-light: rgba(108, 99, 255, 0.15);
    --color-primary-glow: rgba(108, 99, 255, 0.4);
    --color-success: #00C48C;
    --color-success-light: rgba(0, 196, 140, 0.15);
    --color-danger: #FF5A5F;
    --color-danger-light: rgba(255, 90, 95, 0.15);
    --color-warning: #FFB800;
    --color-warning-light: rgba(255, 184, 0, 0.15);
    --color-info: #00B4D8;
    --color-info-light: rgba(0, 180, 216, 0.15);

    /* --- Texto --- */
    --text-primary: #FFFFFF;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --text-muted: rgba(255, 255, 255, 0.45);
    --text-dark: #1a1a2e;

    /* --- Tipografía --- */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.5rem;
    --font-size-2xl: 2rem;
    --font-size-3xl: 2.5rem;

    /* --- Espaciado --- */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;

    /* --- Bordes --- */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    /* --- Transiciones --- */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    line-height: 1.6;

    /* --- Fondo Gradiente Animado --- */
    background: linear-gradient(135deg,
        #0a0a1a 0%,
        #1a1a3e 20%,
        #302b63 40%,
        #24243e 60%,
        #0a0a1a 100%
    );
    background-size: 400% 400%;
    animation: gradientShift 15s ease infinite;
}

@keyframes gradientShift {
    0%   { background-position: 0% 50%; }
    50%  { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* ============================================================
   COMPONENTE: Glass Panel (Tarjeta de cristal)
   ============================================================ */
.glass-panel {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--glass-shadow);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.glass-panel::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg,
        transparent,
        rgba(255, 255, 255, 0.3),
        transparent
    );
}

.glass-panel:hover {
    background: var(--glass-bg-hover);
    border-color: var(--glass-border-hover);
    box-shadow: var(--glass-shadow-elevated);
    transform: translateY(-2px);
}

.glass-panel--static:hover {
    transform: none;
}

.glass-panel--elevated {
    background: rgba(255, 255, 255, 0.15);
    box-shadow: var(--glass-shadow-elevated);
}

/* ============================================================
   COMPONENTE: Glass Button
   ============================================================ */
.glass-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-lg);
    font-family: var(--font-family);
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-primary);
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
    white-space: nowrap;
    position: relative;
    overflow: hidden;
}

.glass-btn::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 60%);
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.glass-btn:hover {
    background: var(--glass-bg-hover);
    border-color: var(--glass-border-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.glass-btn:hover::after {
    opacity: 1;
}

.glass-btn:active {
    transform: translateY(0);
    background: var(--glass-bg-active);
}

.glass-btn--primary {
    background: linear-gradient(135deg, var(--color-primary), #8B83FF);
    border-color: rgba(108, 99, 255, 0.4);
    box-shadow: 0 4px 15px var(--color-primary-glow);
}

.glass-btn--primary:hover {
    box-shadow: 0 6px 25px var(--color-primary-glow);
}

.glass-btn--success {
    background: linear-gradient(135deg, var(--color-success), #33D49F);
    border-color: rgba(0, 196, 140, 0.4);
}

.glass-btn--danger {
    background: linear-gradient(135deg, var(--color-danger), #FF7A7E);
    border-color: rgba(255, 90, 95, 0.4);
}

.glass-btn--lg {
    padding: var(--space-md) var(--space-xl);
    font-size: var(--font-size-base);
}

.glass-btn--sm {
    padding: var(--space-xs) var(--space-md);
    font-size: var(--font-size-xs);
}

.glass-btn--block {
    width: 100%;
}

.glass-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

/* ============================================================
   COMPONENTE: Glass Input
   ============================================================ */
.glass-input-group {
    margin-bottom: var(--space-lg);
}

.glass-input-group label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: var(--space-xs);
    padding-left: var(--space-sm);
}

.glass-input {
    width: 100%;
    padding: var(--space-md) var(--space-lg);
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-md);
    outline: none;
    transition: all var(--transition-base);
}

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

.glass-input:focus {
    background: rgba(255, 255, 255, 0.12);
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-light),
                0 4px 12px rgba(0, 0, 0, 0.1);
}

.glass-input--error {
    border-color: var(--color-danger);
    box-shadow: 0 0 0 3px var(--color-danger-light);
}

.glass-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='rgba(255,255,255,0.6)' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10l-5 5z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 2.5rem;
}

/* ============================================================
   LAYOUT: Container & Grid
   ============================================================ */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.grid {
    display: grid;
    gap: var(--space-lg);
}

.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 768px) {
    .grid--2, .grid--3, .grid--4 {
        grid-template-columns: 1fr;
    }
}

.flex {
    display: flex;
    align-items: center;
}

.flex--between {
    justify-content: space-between;
}

.flex--center {
    justify-content: center;
}

.flex--column {
    flex-direction: column;
}

.flex--gap {
    gap: var(--space-md);
}

/* ============================================================
   COMPONENTE: Header / Navbar
   ============================================================ */
.glass-navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--space-md) var(--space-xl);
    background: rgba(10, 10, 26, 0.6);
    backdrop-filter: blur(var(--glass-blur-heavy));
    -webkit-backdrop-filter: blur(var(--glass-blur-heavy));
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.glass-navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.navbar-brand {
    font-size: var(--font-size-xl);
    font-weight: 700;
    background: linear-gradient(135deg, var(--color-primary), #00B4D8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.navbar-actions {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.navbar-user {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

/* ============================================================
   COMPONENTE: Balance Card (Tarjeta principal)
   ============================================================ */
.balance-card {
    padding: var(--space-2xl);
    text-align: center;
    background: linear-gradient(135deg,
        rgba(108, 99, 255, 0.2),
        rgba(0, 180, 216, 0.15),
        rgba(255, 255, 255, 0.08)
    );
    position: relative;
}

.balance-card::after {
    content: '';
    position: absolute;
    top: -50%;
    right: -30%;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, var(--color-primary-glow) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
    opacity: 0.3;
}

.balance-label {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: var(--space-sm);
}

.balance-amount {
    font-family: var(--font-mono);
    font-size: var(--font-size-3xl);
    font-weight: 800;
    letter-spacing: -1px;
    margin-bottom: var(--space-lg);
    position: relative;
    z-index: 1;
}

.balance-amount.positive {
    background: linear-gradient(135deg, var(--color-success), #33D49F);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.balance-amount.negative {
    background: linear-gradient(135deg, var(--color-danger), #FF7A7E);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.balance-details {
    display: flex;
    justify-content: center;
    gap: var(--space-2xl);
    position: relative;
    z-index: 1;
}

.balance-detail {
    text-align: center;
}

.balance-detail-label {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.balance-detail-value {
    font-family: var(--font-mono);
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-top: var(--space-xs);
}

.balance-detail-value.income {
    color: var(--color-success);
}

.balance-detail-value.expense {
    color: var(--color-danger);
}

/* ============================================================
   COMPONENTE: Stat Cards (Mini tarjetas de estadísticas)
   ============================================================ */
.stat-card {
    padding: var(--space-lg);
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.stat-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    font-size: 1.5rem;
    flex-shrink: 0;
}

.stat-icon--primary { background: var(--color-primary-light); }
.stat-icon--success { background: var(--color-success-light); }
.stat-icon--danger  { background: var(--color-danger-light); }
.stat-icon--warning { background: var(--color-warning-light); }
.stat-icon--info    { background: var(--color-info-light); }

.stat-info h4 {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.stat-info p {
    font-size: var(--font-size-lg);
    font-weight: 700;
    margin-top: 2px;
}

/* ============================================================
   COMPONENTE: Transaction List (Lista de movimientos)
   ============================================================ */
.transaction-list {
    padding: 0;
}

.transaction-header {
    padding: var(--space-lg);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.transaction-header h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
}

.transaction-item {
    display: flex;
    align-items: center;
    padding: var(--space-md) var(--space-lg);
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    transition: background var(--transition-fast);
}

.transaction-item:hover {
    background: rgba(255, 255, 255, 0.04);
}

.transaction-item:last-child {
    border-bottom: none;
}

.transaction-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    font-size: 1.2rem;
    margin-right: var(--space-md);
    flex-shrink: 0;
}

.transaction-icon.income {
    background: var(--color-success-light);
}

.transaction-icon.expense {
    background: var(--color-danger-light);
}

.transaction-details {
    flex: 1;
    min-width: 0;
}

.transaction-category {
    font-size: var(--font-size-sm);
    font-weight: 600;
}

.transaction-description {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.transaction-meta {
    text-align: right;
    flex-shrink: 0;
}

.transaction-amount {
    font-family: var(--font-mono);
    font-size: var(--font-size-sm);
    font-weight: 700;
}

.transaction-amount.income { color: var(--color-success); }
.transaction-amount.expense { color: var(--color-danger); }

.transaction-date {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
}

.transaction-delete {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: var(--space-xs);
    margin-left: var(--space-sm);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    font-size: var(--font-size-sm);
}

.transaction-delete:hover {
    color: var(--color-danger);
    background: var(--color-danger-light);
}

/* ============================================================
   COMPONENTE: Modal (Ventana emergente glass)
   ============================================================ */
.glass-modal-overlay {
    position: fixed;
    inset: 0;
    z-index: 2000;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(6px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-lg);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.glass-modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.glass-modal {
    width: 100%;
    max-width: 480px;
    background: rgba(30, 30, 60, 0.85);
    backdrop-filter: blur(var(--glass-blur-heavy));
    -webkit-backdrop-filter: blur(var(--glass-blur-heavy));
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    box-shadow: var(--glass-shadow-elevated);
    transform: scale(0.9) translateY(20px);
    transition: all var(--transition-base);
    max-height: 90vh;
    overflow-y: auto;
}

.glass-modal-overlay.active .glass-modal {
    transform: scale(1) translateY(0);
}

.glass-modal-header {
    padding: var(--space-xl) var(--space-xl) var(--space-md);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.glass-modal-header h2 {
    font-size: var(--font-size-xl);
    font-weight: 700;
}

.glass-modal-close {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: var(--font-size-xl);
    cursor: pointer;
    padding: var(--space-xs);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    line-height: 1;
}

.glass-modal-close:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.1);
}

.glass-modal-body {
    padding: var(--space-md) var(--space-xl) var(--space-xl);
}

/* ============================================================
   COMPONENTE: Notificaciones (Toast)
   ============================================================ */
.toast-container {
    position: fixed;
    top: 80px;
    right: var(--space-lg);
    z-index: 3000;
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.glass-toast {
    padding: var(--space-md) var(--space-lg);
    background: rgba(30, 30, 60, 0.9);
    backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    box-shadow: var(--glass-shadow-elevated);
    display: flex;
    align-items: center;
    gap: var(--space-md);
    min-width: 300px;
    max-width: 400px;
    animation: toastIn 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
}

.glass-toast.removing {
    animation: toastOut 0.3s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.glass-toast--exito  { border-left: 3px solid var(--color-success); }
.glass-toast--error  { border-left: 3px solid var(--color-danger); }
.glass-toast--alerta { border-left: 3px solid var(--color-warning); }
.glass-toast--info   { border-left: 3px solid var(--color-info); }

.toast-icon {
    font-size: 1.2rem;
    flex-shrink: 0;
}

.toast-content {
    flex: 1;
}

.toast-title {
    font-size: var(--font-size-sm);
    font-weight: 600;
}

.toast-message {
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
    margin-top: 2px;
}

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

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

/* ============================================================
   COMPONENTE: Notification Badge
   ============================================================ */
.notification-badge {
    position: relative;
}

.notification-badge .badge-count {
    position: absolute;
    top: -6px;
    right: -6px;
    background: var(--color-danger);
    color: white;
    font-size: 0.65rem;
    font-weight: 700;
    min-width: 18px;
    height: 18px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 4px;
}

/* ============================================================
   COMPONENTE: Notification Panel
   ============================================================ */
.notification-panel {
    position: fixed;
    top: 60px;
    right: var(--space-lg);
    width: 380px;
    max-height: 500px;
    z-index: 1500;
    overflow-y: auto;
    padding: var(--space-md);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-base);
}

.notification-panel.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.notification-item {
    padding: var(--space-md);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    cursor: pointer;
    transition: background var(--transition-fast);
    border-radius: var(--radius-sm);
}

.notification-item:hover {
    background: rgba(255, 255, 255, 0.05);
}

.notification-item.unread {
    border-left: 3px solid var(--color-primary);
}

.notification-item .notif-title {
    font-size: var(--font-size-sm);
    font-weight: 600;
}

.notification-item .notif-message {
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
    margin-top: 4px;
}

.notification-item .notif-time {
    font-size: 0.7rem;
    color: var(--text-muted);
    margin-top: 4px;
}

/* ============================================================
   COMPONENTE: Category Chart (Resumen visual)
   ============================================================ */
.chart-bar-container {
    padding: var(--space-lg);
}

.chart-bar {
    margin-bottom: var(--space-md);
}

.chart-bar-label {
    display: flex;
    justify-content: space-between;
    font-size: var(--font-size-xs);
    margin-bottom: var(--space-xs);
}

.chart-bar-label span:first-child {
    color: var(--text-secondary);
}

.chart-bar-label span:last-child {
    font-weight: 600;
}

.chart-bar-track {
    height: 8px;
    background: rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.chart-bar-fill {
    height: 100%;
    border-radius: var(--radius-full);
    transition: width 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    background: linear-gradient(90deg, var(--color-primary), var(--color-info));
}

.chart-bar-fill.expense {
    background: linear-gradient(90deg, var(--color-danger), #FF7A7E);
}

.chart-bar-fill.income {
    background: linear-gradient(90deg, var(--color-success), #33D49F);
}

/* ============================================================
   VISTAS: Auth (Registro / Login)
   ============================================================ */
.auth-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-xl);
}

.auth-card {
    width: 100%;
    max-width: 420px;
    padding: var(--space-2xl);
}

.auth-card h1 {
    font-size: var(--font-size-2xl);
    font-weight: 800;
    text-align: center;
    margin-bottom: var(--space-xs);
    background: linear-gradient(135deg, var(--color-primary), #00B4D8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.auth-card .subtitle {
    text-align: center;
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    margin-bottom: var(--space-xl);
}

.auth-toggle {
    text-align: center;
    margin-top: var(--space-lg);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.auth-toggle a {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 600;
    cursor: pointer;
}

.auth-toggle a:hover {
    text-decoration: underline;
}

/* ============================================================
   COMPONENTE: Auth Logo & Branding
   ISO/IEC 27001 - Identidad visual de seguridad
   ============================================================ */
.auth-logo {
    display: flex;
    justify-content: center;
    margin-bottom: var(--space-md);
}

.auth-logo-icon {
    filter: drop-shadow(0 4px 12px var(--color-primary-glow));
    transition: transform var(--transition-base);
}

.auth-logo:hover .auth-logo-icon {
    transform: scale(1.05);
}

/* ============================================================
   COMPONENTE: Security Badge
   ============================================================ */
.security-badge {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xs);
    padding: var(--space-xs) var(--space-md);
    margin-bottom: var(--space-lg);
    font-size: var(--font-size-xs);
    color: var(--color-success);
    background: var(--color-success-light);
    border: 1px solid rgba(0, 196, 140, 0.2);
    border-radius: var(--radius-full);
    width: fit-content;
    margin-left: auto;
    margin-right: auto;
}

.security-badge svg {
    flex-shrink: 0;
}

/* ============================================================
   COMPONENTE: Biometric Auth Button
   ISO/IEC 27001 - Autenticación biométrica
   ============================================================ */
.glass-btn--biometric {
    background: linear-gradient(135deg, rgba(0, 196, 140, 0.15), rgba(0, 180, 216, 0.15));
    border-color: rgba(0, 196, 140, 0.3);
    color: var(--color-success);
    margin-top: var(--space-md);
    gap: var(--space-sm);
}

.glass-btn--biometric:hover {
    background: linear-gradient(135deg, rgba(0, 196, 140, 0.25), rgba(0, 180, 216, 0.25));
    border-color: rgba(0, 196, 140, 0.5);
    box-shadow: 0 4px 20px rgba(0, 196, 140, 0.2);
}

.glass-btn--biometric svg {
    flex-shrink: 0;
}

/* ============================================================
   COMPONENTE: Auth Divider
   ============================================================ */
.auth-divider {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin: var(--space-lg) 0;
    color: var(--text-muted);
    font-size: var(--font-size-xs);
}

.auth-divider::before,
.auth-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: rgba(255, 255, 255, 0.1);
}

/* ============================================================
   COMPONENTE: Password Strength Meter
   OWASP - Validación de seguridad de contraseñas
   ============================================================ */
.password-strength {
    margin-bottom: var(--space-lg);
    padding: 0 var(--space-sm);
}

.strength-bar {
    height: 4px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-full);
    overflow: hidden;
    margin-bottom: var(--space-xs);
}

.strength-fill {
    height: 100%;
    width: 0%;
    border-radius: var(--radius-full);
    transition: width var(--transition-base), background var(--transition-base);
    background: var(--color-danger);
}

.strength-fill.weak {
    width: 25%;
    background: var(--color-danger);
}

.strength-fill.fair {
    width: 50%;
    background: var(--color-warning);
}

.strength-fill.good {
    width: 75%;
    background: var(--color-info);
}

.strength-fill.strong {
    width: 100%;
    background: var(--color-success);
}

.strength-text {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
    transition: color var(--transition-base);
}

.strength-text.weak { color: var(--color-danger); }
.strength-text.fair { color: var(--color-warning); }
.strength-text.good { color: var(--color-info); }
.strength-text.strong { color: var(--color-success); }

/* ============================================================
   COMPONENTE: Auth Compliance Footer
   ISO 27001 / OWASP / AES-256 badges
   ============================================================ */
.auth-compliance {
    display: flex;
    justify-content: center;
    gap: var(--space-md);
    margin-top: var(--space-xl);
    padding-top: var(--space-md);
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.auth-compliance span {
    font-size: 0.65rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    font-weight: 600;
    opacity: 0.6;
    transition: opacity var(--transition-fast);
}

.auth-compliance span:hover {
    opacity: 1;
}

.error-message {
    background: var(--color-danger-light);
    border: 1px solid rgba(255, 90, 95, 0.3);
    border-radius: var(--radius-sm);
    padding: var(--space-sm) var(--space-md);
    font-size: var(--font-size-sm);
    color: var(--color-danger);
    margin-bottom: var(--space-md);
    display: none;
}

.error-message.visible {
    display: block;
}

/* ============================================================
   LAYOUT: Dashboard Principal
   ============================================================ */
.dashboard {
    padding-top: 80px;
    padding-bottom: var(--space-2xl);
    display: none;
}

.dashboard.active {
    display: block;
}

.auth-view {
    display: block;
}

.auth-view.hidden {
    display: none;
}

.section-title {
    font-size: var(--font-size-lg);
    font-weight: 700;
    margin-bottom: var(--space-lg);
    padding-left: var(--space-xs);
}

.dashboard-section {
    margin-bottom: var(--space-xl);
}

/* ============================================================
   COMPONENTE: Empty State
   ============================================================ */
.empty-state {
    text-align: center;
    padding: var(--space-2xl);
    color: var(--text-muted);
}

.empty-state .empty-icon {
    font-size: 3rem;
    margin-bottom: var(--space-md);
    opacity: 0.5;
}

.empty-state p {
    font-size: var(--font-size-sm);
}

/* ============================================================
   COMPONENTE: Loading Spinner
   ============================================================ */
.glass-spinner {
    width: 36px;
    height: 36px;
    border: 3px solid rgba(255, 255, 255, 0.1);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: var(--space-xl) auto;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ============================================================
   COMPONENTE: Tabs de filtro
   ============================================================ */
.glass-tabs {
    display: flex;
    gap: var(--space-xs);
    padding: var(--space-xs);
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-full);
    width: fit-content;
}

.glass-tab {
    padding: var(--space-xs) var(--space-lg);
    border: none;
    background: none;
    color: var(--text-secondary);
    font-family: var(--font-family);
    font-size: var(--font-size-sm);
    font-weight: 500;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

.glass-tab.active {
    background: var(--color-primary);
    color: white;
    box-shadow: 0 2px 8px var(--color-primary-glow);
}

/* ============================================================
   AMBIENT GLASS: Efecto de reflejos ambientales
   ============================================================ */
.liquid-orb {
    position: fixed;
    border-radius: 50%;
    filter: blur(80px);
    pointer-events: none;
    z-index: -1;
    opacity: 0.15;
    animation: orbFloat 20s ease-in-out infinite;
}

.liquid-orb--1 {
    width: 400px;
    height: 400px;
    background: var(--color-primary);
    top: -100px;
    left: -100px;
}

.liquid-orb--2 {
    width: 350px;
    height: 350px;
    background: var(--color-info);
    bottom: -100px;
    right: -100px;
    animation-delay: -7s;
}

.liquid-orb--3 {
    width: 300px;
    height: 300px;
    background: var(--color-success);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: -14s;
}

@keyframes orbFloat {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25%      { transform: translate(30px, -30px) scale(1.1); }
    50%      { transform: translate(-20px, 20px) scale(0.95); }
    75%      { transform: translate(20px, 10px) scale(1.05); }
}

/* ============================================================
   RESPONSIVE DESIGN
   ISO 9126 - Usabilidad: Adaptabilidad
   ISO/IEC 25000 - Calidad en uso: Cobertura de contexto
   ============================================================ */

/* ---------- Tablet (max 1024px) ---------- */
@media (max-width: 1024px) {
    .container {
        padding: 0 var(--space-md);
    }

    .balance-card::after {
        width: 200px;
        height: 200px;
    }

    .notification-panel {
        width: 340px;
    }
}

/* ---------- Tablet portrait & large phones (max 768px) ---------- */
@media (max-width: 768px) {
    .glass-navbar {
        padding: var(--space-sm) var(--space-md);
    }

    .navbar-brand {
        font-size: var(--font-size-lg);
    }

    .navbar-user {
        display: none;
    }

    .balance-card {
        padding: var(--space-xl) var(--space-lg);
    }

    .balance-amount {
        font-size: var(--font-size-2xl);
    }

    .balance-details {
        gap: var(--space-lg);
    }

    .balance-detail-value {
        font-size: var(--font-size-lg);
    }

    /* Tabs wrap on medium screens */
    .flex--between {
        flex-wrap: wrap;
        gap: var(--space-sm);
    }

    .glass-tabs {
        width: 100%;
        justify-content: center;
    }

    .glass-modal {
        max-width: calc(100% - var(--space-lg));
    }

    .notification-panel {
        left: var(--space-md);
        right: var(--space-md);
        width: auto;
    }

    .toast-container {
        left: var(--space-md);
        right: var(--space-md);
    }

    .glass-toast {
        min-width: unset;
        max-width: 100%;
    }
}

/* ---------- Mobile (max 480px) ---------- */
@media (max-width: 480px) {
    html {
        font-size: 14px;
    }

    .glass-navbar {
        padding: var(--space-xs) var(--space-sm);
    }

    .glass-navbar .container {
        padding: 0 var(--space-xs);
    }

    .navbar-brand {
        font-size: var(--font-size-base);
    }

    .navbar-actions {
        gap: var(--space-xs);
    }

    .navbar-user {
        display: none;
    }

    /* Dashboard bottom padding for mobile nav */
    .dashboard {
        padding-top: 70px;
        padding-bottom: calc(70px + var(--space-lg));
    }

    .container {
        padding: 0 var(--space-sm);
    }

    /* Balance card compact */
    .balance-card {
        padding: var(--space-lg) var(--space-md);
    }

    .balance-label {
        font-size: var(--font-size-xs);
        letter-spacing: 1px;
    }

    .balance-amount {
        font-size: 1.75rem;
    }

    .balance-details {
        flex-direction: column;
        gap: var(--space-sm);
    }

    .balance-detail {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: var(--space-xs) 0;
    }

    .balance-detail-label {
        margin: 0;
    }

    .balance-detail-value {
        font-size: var(--font-size-base);
        margin: 0;
    }

    .balance-card::after {
        display: none;
    }

    /* Action buttons stack vertically */
    .grid--2 {
        grid-template-columns: 1fr;
        gap: var(--space-sm);
    }

    .stat-card {
        padding: var(--space-md);
    }

    .stat-icon {
        width: 40px;
        height: 40px;
        font-size: 1.2rem;
    }

    /* Section titles */
    .section-title {
        font-size: var(--font-size-base);
    }

    .dashboard-section {
        margin-bottom: var(--space-lg);
    }

    /* Transaction list compact */
    .transaction-item {
        padding: var(--space-sm) var(--space-md);
        flex-wrap: wrap;
        gap: var(--space-xs);
    }

    .transaction-icon {
        width: 34px;
        height: 34px;
        font-size: 1rem;
        margin-right: var(--space-sm);
    }

    .transaction-details {
        flex: 1;
        min-width: 0;
    }

    .transaction-category {
        font-size: var(--font-size-xs);
    }

    .transaction-description {
        font-size: 0.7rem;
    }

    .transaction-amount {
        font-size: var(--font-size-xs);
    }

    .transaction-date {
        font-size: 0.65rem;
    }

    .transaction-delete {
        padding: var(--space-xs);
        font-size: var(--font-size-xs);
    }

    /* Tabs compact */
    .glass-tabs {
        width: 100%;
    }

    .glass-tab {
        padding: var(--space-xs) var(--space-md);
        font-size: var(--font-size-xs);
        flex: 1;
        text-align: center;
    }

    /* Modal full-screen on mobile */
    .glass-modal-overlay {
        padding: 0;
        align-items: flex-end;
    }

    .glass-modal {
        max-width: 100%;
        max-height: 90vh;
        border-radius: var(--radius-xl) var(--radius-xl) 0 0;
        margin: 0;
    }

    .glass-modal-overlay.active .glass-modal {
        transform: scale(1) translateY(0);
    }

    .glass-modal-header {
        padding: var(--space-lg) var(--space-lg) var(--space-sm);
    }

    .glass-modal-header h2 {
        font-size: var(--font-size-lg);
    }

    .glass-modal-body {
        padding: var(--space-sm) var(--space-lg) var(--space-lg);
    }

    .glass-input {
        padding: var(--space-sm) var(--space-md);
        font-size: var(--font-size-sm);
    }

    .glass-input-group {
        margin-bottom: var(--space-md);
    }

    .glass-btn--lg {
        padding: var(--space-sm) var(--space-lg);
    }

    /* Auth card compact */
    .auth-card {
        padding: var(--space-xl) var(--space-lg);
        max-width: 100%;
        border-radius: var(--radius-lg);
    }

    .auth-card h1 {
        font-size: var(--font-size-xl);
    }

    .auth-container {
        padding: var(--space-md);
    }

    /* Notification panel full width */
    .notification-panel {
        top: 55px;
        left: var(--space-sm);
        right: var(--space-sm);
        width: auto;
        max-height: 60vh;
    }

    /* Toast compact */
    .toast-container {
        top: 60px;
        left: var(--space-sm);
        right: var(--space-sm);
    }

    .glass-toast {
        min-width: unset;
        max-width: 100%;
        padding: var(--space-sm) var(--space-md);
    }

    .toast-title {
        font-size: var(--font-size-xs);
    }

    .toast-message {
        font-size: 0.7rem;
    }

    /* Chart bars compact */
    .chart-bar-container {
        padding: var(--space-md);
    }

    .chart-bar-label {
        font-size: 0.7rem;
    }

    .chart-bar-track {
        height: 6px;
    }

    /* Liquid orbs smaller on mobile */
    .liquid-orb--1 { width: 200px; height: 200px; }
    .liquid-orb--2 { width: 180px; height: 180px; }
    .liquid-orb--3 { width: 150px; height: 150px; }
}

/* ---------- Extra small phones (max 360px) ---------- */
@media (max-width: 360px) {
    html {
        font-size: 13px;
    }

    .balance-amount {
        font-size: 1.5rem;
    }

    .glass-navbar .container {
        gap: var(--space-xs);
    }

    .glass-btn--sm {
        padding: 4px var(--space-sm);
        font-size: 0.7rem;
    }

    .auth-card {
        padding: var(--space-lg) var(--space-md);
    }

    .auth-card h1 {
        font-size: var(--font-size-lg);
    }
}

/* ---------- Landscape mobile ---------- */
@media (max-height: 500px) and (orientation: landscape) {
    .auth-container {
        padding: var(--space-sm);
    }

    .auth-card {
        padding: var(--space-md) var(--space-lg);
    }

    .auth-card h1 {
        font-size: var(--font-size-lg);
        margin-bottom: var(--space-xs);
    }

    .auth-card .subtitle {
        margin-bottom: var(--space-sm);
    }

    .glass-input-group {
        margin-bottom: var(--space-sm);
    }

    .glass-input {
        padding: var(--space-xs) var(--space-md);
    }

    .dashboard {
        padding-top: 60px;
    }

    .glass-modal {
        max-height: 95vh;
    }
}

/* ---------- Desktop wide (min 1200px) ---------- */
@media (min-width: 1200px) {
    .container {
        max-width: 1100px;
    }

    .balance-card {
        padding: var(--space-2xl) 4rem;
    }
}

/* ---------- Touch device optimizations ---------- */
@media (hover: none) and (pointer: coarse) {
    .glass-btn {
        min-height: 44px;
        min-width: 44px;
    }

    .glass-tab {
        min-height: 40px;
    }

    .transaction-item {
        min-height: 56px;
    }

    .transaction-delete {
        min-width: 40px;
        min-height: 40px;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .notification-item {
        min-height: 48px;
    }

    .glass-panel:hover {
        transform: none;
    }

    .glass-btn:hover {
        transform: none;
    }
}

/* ---------- Reduced motion preference ---------- */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }

    body {
        animation: none;
        background-size: 100% 100%;
    }

    .liquid-orb {
        animation: none;
    }
}

/* ---------- Safe area for notched devices ---------- */
@supports (padding: env(safe-area-inset-bottom)) {
    .dashboard {
        padding-bottom: calc(var(--space-2xl) + env(safe-area-inset-bottom));
    }

    .glass-modal {
        padding-bottom: env(safe-area-inset-bottom);
    }

    .glass-navbar {
        padding-left: calc(var(--space-xl) + env(safe-area-inset-left));
        padding-right: calc(var(--space-xl) + env(safe-area-inset-right));
    }
}

/* ============================================================
   SCROLLBAR STYLING
   ============================================================ */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.25);
}

/* ============================================================
   ANIMACIONES DE ENTRADA
   ============================================================ */
.fade-in {
    animation: fadeIn 0.5s ease forwards;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to   { opacity: 1; transform: translateY(0); }
}

.slide-up {
    animation: slideUp 0.6s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(30px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ============================================================
   MÉTRICAS AVANZADAS - Resumen mejorado (F6)
   ============================================================ */

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
}

.metric-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: var(--space-md) var(--space-sm);
    gap: var(--space-xs);
}

.metric-icon {
    font-size: 1.6rem;
}

.metric-label {
    font-size: var(--font-size-xs);
    color: var(--glass-text-secondary);
    line-height: 1.2;
}

.metric-value {
    font-family: var(--font-mono);
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--glass-text-primary);
}

.metric-value.positive { color: var(--color-success); }
.metric-value.negative { color: var(--color-danger); }

#top-gastos-list .top-gasto-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-xs) 0;
    border-bottom: 1px solid var(--glass-border);
}

#top-gastos-list .top-gasto-item:last-child {
    border-bottom: none;
}

.top-gasto-info {
    display: flex;
    gap: var(--space-sm);
    align-items: center;
    flex: 1;
    min-width: 0;
}

.top-gasto-info span:first-child {
    font-size: 1.2rem;
}

.top-gasto-info span:last-child {
    font-size: var(--font-size-sm);
    color: var(--glass-text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.top-gasto-monto {
    font-weight: 600;
    color: var(--color-danger);
    font-size: var(--font-size-sm);
    white-space: nowrap;
    margin-left: var(--space-sm);
}

@media (max-width: 768px) {
    .metrics-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .metrics-grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-xs);
    }
    .metric-card {
        padding: var(--space-sm) var(--space-xs);
    }
    .metric-value {
        font-size: var(--font-size-md);
    }
}

/* ============================================================
   OCR & CHAT - Estilos de modales IA (F4, F5)
   ============================================================ */

.ocr-upload-area {
    border: 2px dashed var(--glass-border);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    text-align: center;
    cursor: pointer;
    transition: border-color 0.3s, background 0.3s;
}

.ocr-upload-area:hover,
.ocr-upload-area.dragover {
    border-color: var(--color-primary);
    background: rgba(99, 102, 241, 0.05);
}

.ocr-placeholder p {
    margin-top: var(--space-sm);
    color: var(--glass-text-secondary);
}

.loading-spinner {
    width: 36px;
    height: 36px;
    border: 3px solid var(--glass-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 0 auto;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Chat */
.glass-modal--chat {
    max-height: 80vh;
    display: flex;
    flex-direction: column;
}

.glass-modal-body--chat {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    margin-bottom: var(--space-md);
    padding: var(--space-sm);
}

.chat-form {
    display: flex;
    gap: var(--space-sm);
}

.chat-input {
    flex: 1;
}

.chat-msg {
    display: flex;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
    align-items: flex-start;
}

.chat-msg--user {
    flex-direction: row-reverse;
}

.chat-avatar {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.chat-bubble {
    background: var(--glass-bg);
    backdrop-filter: blur(8px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: var(--space-sm) var(--space-md);
    max-width: 80%;
    font-size: var(--font-size-sm);
    line-height: 1.5;
    word-break: break-word;
}

.chat-msg--user .chat-bubble {
    background: rgba(99, 102, 241, 0.15);
    border-color: rgba(99, 102, 241, 0.3);
}

.chat-msg--bot .chat-bubble {
    background: rgba(255, 255, 255, 0.05);
}

.chat-bubble--loading {
    min-width: 54px;
}

.chat-bubble--markdown p {
    margin: 0 0 0.55rem;
}

.chat-bubble--markdown p:last-child {
    margin-bottom: 0;
}

.chat-bubble--markdown ul,
.chat-bubble--markdown ol {
    margin: 0.25rem 0 0.55rem 1.2rem;
}

.chat-bubble--markdown pre {
    margin: 0.4rem 0;
    padding: 0.55rem 0.7rem;
    border-radius: var(--radius-sm);
    background: rgba(0, 0, 0, 0.28);
    overflow-x: auto;
}

.chat-bubble--markdown code {
    font-family: var(--font-mono);
    font-size: 0.85em;
    padding: 0.1rem 0.24rem;
    border-radius: 6px;
    background: rgba(0, 0, 0, 0.25);
}

.chat-bubble--markdown pre code {
    background: transparent;
    padding: 0;
}

.chat-bubble--markdown strong {
    font-weight: 700;
}

.chat-tools-used {
    margin-top: 0.7rem;
    padding-top: 0.55rem;
    border-top: 1px dashed rgba(255, 255, 255, 0.2);
}

.chat-tools-used__title {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-muted);
    margin-bottom: 0.35rem;
}

.chat-tools-used__list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
}

.chat-tool-chip {
    display: inline-flex;
    align-items: center;
    font-size: 0.74rem;
    border: 1px solid rgba(99, 102, 241, 0.35);
    background: rgba(99, 102, 241, 0.12);
    border-radius: var(--radius-full);
    padding: 0.12rem 0.48rem;
}

.chat-stream-cursor {
    display: inline-block;
    margin-left: 0.1rem;
    opacity: 1;
    animation: chatCursorBlink 0.9s steps(1, end) infinite;
}

@keyframes chatCursorBlink {
    50% { opacity: 0; }
}

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

@media (max-width: 480px) {
    .grid.grid--2 {
        grid-template-columns: 1fr;
    }
}

/* ============================================================
   NUEVOS ESTILOS v2.1
   ============================================================ */

/* ── Modo Claro ── */
body.light-mode {
    background: linear-gradient(135deg, #e8eaff 0%, #f0f2ff 50%, #e4f0ff 100%);
}
body.light-mode {
    --glass-bg: rgba(0, 0, 0, 0.06);
    --glass-bg-hover: rgba(0, 0, 0, 0.1);
    --glass-border: rgba(0, 0, 0, 0.12);
    --text-primary: #1a1a2e;
    --text-secondary: rgba(10, 10, 40, 0.7);
    --text-muted: rgba(10, 10, 40, 0.45);
}
body.light-mode .glass-panel,
body.light-mode .glass-navbar,
body.light-mode .glass-modal {
    background: rgba(255, 255, 255, 0.65);
    border-color: rgba(0, 0, 0, 0.1);
    color: #1a1a2e;
}
body.light-mode .glass-input {
    background: rgba(255, 255, 255, 0.7);
    color: #1a1a2e;
    border-color: rgba(0, 0, 0, 0.15);
}
body.light-mode .glass-input::placeholder { color: rgba(10,10,40,0.4); }
body.light-mode .glass-btn { color: #1a1a2e; }
body.light-mode .glass-btn--primary { color: #fff; }
body.light-mode .liquid-orb { opacity: 0.06; }
body.light-mode .balance-amount.positive { color: #00915a; }
body.light-mode .balance-amount.negative { color: #c0392b; }
body.light-mode .transaction-amount.income { color: #00915a; }
body.light-mode .transaction-amount.expense { color: #c0392b; }
body.light-mode .chat-bubble { color: #1a1a2e; }
body.light-mode .chat-bubble--markdown pre {
    background: rgba(0, 0, 0, 0.08);
}
body.light-mode .chat-bubble--markdown code {
    background: rgba(0, 0, 0, 0.08);
}
body.light-mode .chat-tools-used {
    border-top-color: rgba(0, 0, 0, 0.2);
}
body.light-mode .chat-tool-chip {
    border-color: rgba(59, 130, 246, 0.35);
    background: rgba(59, 130, 246, 0.1);
    color: #1a1a2e;
}
body.light-mode .tag-pill { color: #1a1a2e; }

/* ── Skeleton Loaders ── */
@keyframes skeleton-shimmer {
    0%   { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}
.skeleton {
    background: linear-gradient(
        90deg,
        var(--glass-bg) 25%,
        rgba(255,255,255,0.18) 50%,
        var(--glass-bg) 75%
    );
    background-size: 200% 100%;
    animation: skeleton-shimmer 1.5s ease-in-out infinite;
    border-radius: var(--radius-sm);
}
body.light-mode .skeleton {
    background: linear-gradient(
        90deg,
        rgba(0,0,0,0.07) 25%,
        rgba(0,0,0,0.14) 50%,
        rgba(0,0,0,0.07) 75%
    );
    background-size: 200% 100%;
    animation: skeleton-shimmer 1.5s ease-in-out infinite;
}

/* Skeleton para lista de movimientos */
.skeleton-item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md);
    border-bottom: 1px solid var(--glass-border);
}
.skeleton-item:last-child { border-bottom: none; }
.skeleton-icon  { width: 44px; height: 44px; border-radius: 50%; flex-shrink: 0; }
.skeleton-lines { flex: 1; display: flex; flex-direction: column; gap: 8px; }
.skeleton-line-xl  { height: 14px; width: 60%; }
.skeleton-line-lg  { height: 12px; width: 75%; }
.skeleton-line-sm  { height: 11px; width: 40%; }
.skeleton-amount   { height: 20px; width: 80px; border-radius: var(--radius-sm); flex-shrink: 0; }
.skeleton-score-bar { height: 8px; width: 100%; border-radius: var(--radius-full); margin-top: 4px; }
.skeleton-tag  { height: 22px; width: 90px; border-radius: var(--radius-full); }
.skeleton-avatar { width: 64px; height: 64px; border-radius: 50%; flex-shrink: 0; }
.skeleton-perfil-inner {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
}
.skeleton-perfil-lines { flex: 1; display: flex; flex-direction: column; gap: 8px; }

/* Skeleton overlay sobre el panel perfil IA */
.skeleton-overlay {
    position: absolute;
    inset: 0;
    z-index: 2;
    background: inherit;
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    flex-direction: column;
    gap: var(--space-sm);
    backdrop-filter: blur(4px);
}

/* ── Charts ── */
.charts-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
    margin-bottom: var(--space-md);
}
@media (max-width: 768px) {
    .charts-grid { grid-template-columns: 1fr; }
}
.chart-container {
    padding: var(--space-md);
}
.chart-title {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-bottom: var(--space-sm);
    font-weight: 600;
}
.chart-canvas-wrapper {
    position: relative;
    height: 220px;
}
.chart-canvas-wrapper canvas {
    max-height: 220px;
}

/* ── Perfil IA ── */
.perfil-ia-card {
    padding: var(--space-lg);
    position: relative;
    overflow: hidden;
}
.perfil-ia-header {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
    margin-bottom: var(--space-md);
}
.perfil-avatar {
    font-size: 2.8rem;
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 50%;
    flex-shrink: 0;
    transition: transform var(--transition-base);
}
.perfil-avatar:hover { transform: scale(1.08); }
.perfil-info { flex: 1; min-width: 0; }
.perfil-tipo-label {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--space-xs);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.perfil-score-bar {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    flex-wrap: wrap;
}
.perfil-score-label {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
    white-space: nowrap;
}
.score-track {
    flex: 1;
    min-width: 80px;
    height: 8px;
    border-radius: var(--radius-full);
    background: var(--glass-bg);
    overflow: hidden;
}
.score-fill {
    height: 100%;
    width: 0%;
    border-radius: var(--radius-full);
    background: linear-gradient(90deg, #FF5A5F, #FFB800, #00C48C);
    transition: width 1.2s cubic-bezier(0.4, 0, 0.2, 1);
}
.perfil-score-num {
    font-size: var(--font-size-lg);
    font-weight: 800;
    font-family: var(--font-mono);
    transition: color var(--transition-base);
}
.perfil-score-max {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
}
.perfil-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs);
    margin-bottom: var(--space-md);
}
.tag-pill {
    display: inline-flex;
    align-items: center;
    padding: 4px 12px;
    border-radius: var(--radius-full);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
    white-space: nowrap;
    transition: all var(--transition-fast);
}
.tag-pill:hover {
    background: var(--glass-bg-hover);
    transform: translateY(-1px);
}
.perfil-narrativa {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--space-md);
    font-style: italic;
}
.perfil-detalles {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
}
@media (max-width: 600px) {
    .perfil-detalles { grid-template-columns: 1fr; }
    .perfil-ia-header { flex-wrap: wrap; }
    .perfil-tipo-label { white-space: normal; }
}
.perfil-detalles-seccion h5 {
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: var(--space-xs);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
.perfil-detalles-seccion ul {
    list-style: none;
    margin: 0;
    padding: 0;
}
.perfil-detalles-seccion li {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
    padding: 3px 0;
    padding-left: var(--space-sm);
    border-left: 2px solid var(--glass-border);
    margin-bottom: 4px;
}

/* ── Filtros Avanzados ── */
.filtros-avanzados {
    padding: var(--space-md);
    margin-bottom: var(--space-md);
}
.filtros-row {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    align-items: flex-end;
}
.filtro-grupo {
    display: flex;
    flex-direction: column;
    gap: 4px;
    min-width: 110px;
}
.filtro-label {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
    font-weight: 500;
}
.glass-input--sm {
    padding: 6px 10px;
    font-size: var(--font-size-xs);
    height: 34px;
}
.filtro-acciones {
    display: flex;
    gap: var(--space-xs);
    align-items: flex-end;
    margin-top: auto;
}
@media (max-width: 768px) {
    .filtros-row { gap: var(--space-xs); }
    .filtro-grupo { min-width: 90px; }
}
@media (max-width: 480px) {
    .filtros-row { flex-direction: column; }
    .filtro-grupo { min-width: 100%; }
    .filtro-acciones { width: 100%; }
    .filtro-acciones .glass-btn { flex: 1; }
}

/* ── Acciones en transacciones (editar + eliminar) ── */
.transaction-actions {
    display: flex;
    gap: 4px;
    align-items: center;
    flex-shrink: 0;
}
.transaction-edit,
.transaction-delete {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    padding: 6px;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    opacity: 0.5;
    display: flex;
    align-items: center;
    justify-content: center;
}
.transaction-edit:hover  { opacity: 1; background: rgba(108,99,255,0.15); transform: scale(1.15); }
.transaction-delete:hover { opacity: 1; background: rgba(255,90,95,0.15); transform: scale(1.15); }

/* ── Modal pequeño (confirmar borrado) ── */
.glass-modal--sm {
    max-width: 380px;
}

/* ── Toast insight diario (Duolingo style) ── */
.glass-toast--insight {
    background: linear-gradient(135deg, rgba(108,99,255,0.25), rgba(0,180,216,0.2));
    border: 1px solid rgba(108,99,255,0.4);
    min-width: 300px;
    max-width: 380px;
    padding: var(--space-md) var(--space-lg);
}
.glass-toast--insight .toast-title {
    color: var(--color-primary);
    font-weight: 700;
}
.toast-action-btn {
    background: none;
    border: none;
    color: var(--color-primary);
    cursor: pointer;
    font-size: var(--font-size-xs);
    font-weight: 600;
    padding: 4px 0;
    margin-top: 6px;
    display: block;
    text-decoration: underline;
    text-underline-offset: 2px;
}
.toast-action-btn:hover { opacity: 0.8; }

/* ── Botón danger ── */
.glass-btn--danger {
    background: rgba(255, 90, 95, 0.15);
    border-color: rgba(255, 90, 95, 0.3);
    color: var(--color-danger);
}
.glass-btn--danger:hover {
    background: rgba(255, 90, 95, 0.3);
    border-color: var(--color-danger);
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(255, 90, 95, 0.25);
}