/* ============ CSS CUSTOM PROPERTIES ============ */
:root {
    /* Colores principales */
    --primary-color: #7637bc;
    --primary-light: #9456d4;
    --primary-lighter: #a864d8;
    --primary-dark: #4c1d5b;
    
    /* Colores de estado */
    --success-color: #10B981;
    --success-dark: #059669;
    --error-color: #EF4444;
    --error-dark: #DC2626;
    --warning-color: #F59E0B;
    --warning-dark: #D97706;
    --info-color: #3B82F6;
    
    /* Colores neutros */
    --white: #FFFFFF;
    --gray-50: #F9FAFB;
    --gray-100: #F5F5F5;
    --gray-200: #E5E7EB;
    --gray-300: #D1D5DB;
    --gray-400: #9CA3AF;
    --gray-500: #6B7280;
    --gray-600: #4B5563;
    --gray-700: #374151;
    --gray-800: #1F2937;
    --gray-900: #111827;
    --text-primary: #0A2540;
    
    /* Espaciado */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 12px;
    --spacing-lg: 16px;
    --spacing-xl: 20px;
    --spacing-2xl: 24px;
    --spacing-3xl: 32px;
    --spacing-4xl: 40px;
    --spacing-5xl: 48px;
    
    /* Border radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-2xl: 24px;
    --radius-full: 50%;
    
    /* Sombras */
    --shadow-sm: 0 2px 8px rgba(118, 55, 188, 0.06);
    --shadow-md: 0 4px 15px rgba(118, 55, 188, 0.08);
    --shadow-lg: 0 8px 25px rgba(118, 55, 188, 0.15);
    --shadow-xl: 0 20px 50px rgba(118, 55, 188, 0.3);
    --shadow-glow: 0 0 20px rgba(118, 55, 188, 0.3);
    
    /* Transiciones */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Tipografía */
    --font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --font-size-xs: 10px;
    --font-size-sm: 12px;
    --font-size-base: 14px;
    --font-size-md: 16px;
    --font-size-lg: 18px;
    --font-size-xl: 22px;
    --font-size-2xl: 28px;
    --font-size-3xl: 36px;
    
    /* Z-index layers */
    --z-dropdown: 1000;
    --z-modal: 2000;
    --z-toast: 3000;
    --z-tooltip: 4000;
    
    /* Breakpoints */
    --mobile: 480px;
    --tablet: 768px;
    --desktop: 1024px;
    --desktop-lg: 1280px;
}

/* ============ RESET Y BASE ============ */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-family);
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-color) 50%, var(--primary-light) 100%);
    color: var(--white);
    overflow-x: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Screen reader only content */
.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;
}

/* Skip to content link for accessibility */
.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: var(--primary-color);
    color: var(--white);
    padding: 8px;
    text-decoration: none;
    border-radius: var(--radius-sm);
    z-index: var(--z-tooltip);
}

.skip-link:focus {
    top: 6px;
}

/* ============ APP CONTAINER ============ */
.app-container {
    max-width: 100%;
    margin: 0 auto;
    min-height: 100vh;
    background: linear-gradient(180deg, var(--primary-dark) 0%, var(--primary-color) 100%);
    position: relative;
    box-shadow: var(--shadow-glow);
    display: flex;
    flex-direction: column;
}

/* ============ PANTALLAS ============ */
.screen {
    display: none;
    flex: 1;
    padding-bottom: 100px; /* Espacio para navegación */
}

.screen.active {
    display: block;
}

/* ============ HEADER ============ */
.header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 50%, var(--primary-lighter) 100%);
    padding: var(--spacing-xl) var(--spacing-lg);
    text-align: center;
    box-shadow: var(--shadow-glow);
}

.header h1 {
    font-size: var(--font-size-2xl);
    font-weight: 300;
    margin-bottom: var(--spacing-sm);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.header .subtitle {
    font-size: var(--font-size-base);
    opacity: 0.8;
}

/* ============ TARJETAS PRINCIPALES ============ */
.balance-card,
.health-bar-container,
.ai-insights {
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    margin: var(--spacing-xl);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: var(--shadow-xl);
    transition: var(--transition-normal);
}

.balance-card:hover,
.health-bar-container:hover,
.ai-insights:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl), var(--shadow-glow);
}

/* Balance Card */
.balance-card {
    text-align: center;
}

.balance-label {
    font-size: var(--font-size-md);
    opacity: 0.8;
    margin-bottom: var(--spacing-xs);
}

.balance-amount {
    font-size: var(--font-size-3xl);
    font-weight: bold;
    margin: var(--spacing-md) 0;
    background: linear-gradient(135deg, var(--white), #f0f0f0);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.balance-change {
    font-size: var(--font-size-base);
    opacity: 0.8;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
}

/* ============ BARRA DE SALUD FINANCIERA ============ */
.health-title {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-lg);
    color: var(--white);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.health-bar {
    height: 12px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 6px;
    overflow: hidden;
    position: relative;
    margin-bottom: var(--spacing-md);
}

.health-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--success-color) 0%, var(--info-color) 100%);
    border-radius: 6px;
    box-shadow: 0 0 10px rgba(16, 185, 129, 0.5);
    transition: width var(--transition-slow);
    animation: healthPulse 2s ease-in-out infinite alternate;
}

@keyframes healthPulse {
    from { box-shadow: 0 0 5px rgba(16, 185, 129, 0.3); }
    to { box-shadow: 0 0 15px rgba(16, 185, 129, 0.7); }
}

.health-score {
    text-align: center;
    font-size: var(--font-size-xl);
    font-weight: bold;
    color: var(--success-color);
}

/* ============ CONTENEDORES DE GRÁFICOS ============ */
.chart-container {
    background: var(--white);
    border-radius: var(--radius-xl);
    margin: var(--spacing-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-lg);
    transition: var(--transition-normal);
}

.chart-container:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

.chart-title {
    color: var(--primary-dark);
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-xl);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

/* Gráfico circular */
.chart {
    width: 180px;
    height: 180px;
    margin: 0 auto;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.donut-chart {
    width: 160px;
    height: 160px;
    border-radius: var(--radius-full);
    position: relative;
    box-shadow: var(--shadow-lg);
    transition: var(--transition-normal);
}

.donut-chart:hover {
    transform: scale(1.05);
}

.donut-center {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 90px;
    height: 90px;
    background: var(--white);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    box-shadow: inset 0 0 20px rgba(118, 55, 188, 0.1);
}

.donut-center strong {
    color: var(--text-primary);
    font-size: var(--font-size-md);
}

.donut-center span {
    color: var(--gray-500);
    font-size: var(--font-size-sm);
}

/* Leyenda */
.chart-legend {
    margin-top: var(--spacing-xl);
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-sm);
}

.chart-legend-horizontal {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-lg);
    flex-wrap: wrap;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: var(--font-size-sm);
    color: var(--primary-dark);
}

.legend-color {
    width: 12px;
    height: 12px;
    border-radius: var(--radius-full);
    flex-shrink: 0;
}

/* ============ GRÁFICOS AVANZADOS ============ */
.trend-chart {
    position: relative;
    height: 200px;
    padding: var(--spacing-xl) 0;
}

.chart-grid {
    position: absolute;
    top: var(--spacing-xl);
    left: 0;
    right: 0;
    bottom: 40px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.grid-line {
    height: 1px;
    background: rgba(118, 55, 188, 0.1);
    width: 100%;
}

.trend-svg {
    position: relative;
    z-index: 2;
    height: 150px;
    width: 100%;
}

/* Gauges Container */
.gauges-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    margin: var(--spacing-lg);
}

.gauge-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    text-align: center;
    box-shadow: var(--shadow-md);
    border-top: 3px solid var(--primary-color);
    transition: var(--transition-normal);
}

.gauge-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.gauge-card h3,
.gauge-card h4 {
    color: var(--primary-dark);
    font-size: var(--font-size-base);
    margin-bottom: var(--spacing-lg);
    font-weight: 600;
}

.circular-progress {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.progress-circle {
    position: relative;
}

.progress-circle svg {
    transform: rotate(-90deg);
}

.progress-circle circle {
    transition: stroke-dashoffset 1s ease-in-out;
}

.progress-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: var(--font-size-md);
    font-weight: bold;
    color: var(--primary-dark);
}

/* ============ GRÁFICO DE BARRAS ============ */
.bar-chart {
    padding: var(--spacing-xl) 0;
    min-height: 200px;
}

.bar-item {
    display: flex;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    position: relative;
    animation: slideInLeft 0.6s ease-out forwards;
    opacity: 0;
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.bar-label {
    min-width: 80px;
    font-size: var(--font-size-sm);
    color: var(--primary-dark);
    font-weight: 500;
    margin-right: var(--spacing-lg);
    display: flex;
    align-items: center;
}

.bar-container {
    flex: 1;
    height: 24px;
    background: var(--gray-100);
    border-radius: var(--radius-md);
    overflow: hidden;
    position: relative;
}

.bar-fill {
    height: 100%;
    border-radius: var(--radius-md);
    position: relative;
    transition: width 1s ease-out;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-light));
    box-shadow: var(--shadow-glow);
}

.bar-value {
    position: absolute;
    right: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    font-size: var(--font-size-xs);
    font-weight: bold;
    color: var(--primary-dark);
    white-space: nowrap;
}

/* ============ SECCIONES DE CONTENIDO ============ */
.transactions-section,
.settings-list {
    background: var(--gray-50);
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
    margin: var(--spacing-lg) var(--spacing-lg) 0;
    padding: var(--spacing-xl) var(--spacing-lg);
    min-height: 400px;
}

.section-title {
    color: var(--primary-dark);
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-xl);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

/* ============ TARJETAS DE TRANSACCIONES ============ */
.transaction-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
    border-left: 4px solid var(--primary-color);
    cursor: pointer;
}

.transaction-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.transaction-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    flex: 1;
    min-width: 0;
}

.transaction-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-md);
    color: var(--white);
    flex-shrink: 0;
}

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

.transaction-details h4 {
    color: var(--primary-dark);
    font-size: var(--font-size-base);
    margin-bottom: var(--spacing-xs);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.transaction-details p {
    color: var(--gray-500);
    font-size: var(--font-size-sm);
}

.transaction-amount {
    font-size: var(--font-size-md);
    font-weight: bold;
    flex-shrink: 0;
}

/* Estados de color */
.positive { color: var(--success-color); }
.negative { color: var(--error-color); }

/* ============ REPORTES ============ */
.reports-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.report-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    border-left: 4px solid var(--info-color);
    transition: var(--transition-normal);
}

.report-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.report-title {
    color: var(--text-primary);
    font-size: var(--font-size-lg);
    font-weight: bold;
    margin-bottom: var(--spacing-md);
}

.report-value {
    font-size: var(--font-size-xl);
    font-weight: bold;
    margin-bottom: var(--spacing-xs);
}

.report-change {
    font-size: var(--font-size-base);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--gray-500);
}

/* ============ CALCULADORA ============ */
.calculator {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    margin: 0 var(--spacing-xl);
    box-shadow: var(--shadow-xl);
}

.calc-display {
    width: 100%;
    height: 80px;
    background: var(--text-primary);
    color: var(--white);
    border: none;
    border-radius: var(--radius-md);
    padding: 0 var(--spacing-xl);
    font-size: 32px;
    text-align: right;
    margin-bottom: var(--spacing-xl);
    font-family: 'Courier New', monospace;
}

.calc-buttons {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
}

.calc-btn {
    height: 60px;
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--font-size-xl);
    font-weight: bold;
    cursor: pointer;
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.calc-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

.calc-btn:hover::before {
    left: 100%;
}

.calc-btn.number {
    background: var(--gray-100);
    color: var(--text-primary);
}

.calc-btn.operator {
    background: var(--info-color);
    color: var(--white);
}

.calc-btn.equals {
    background: var(--success-color);
    color: var(--white);
}

.calc-btn.clear {
    background: var(--error-color);
    color: var(--white);
}

.calc-btn.zero {
    grid-column: span 2;
}

.calc-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.calc-btn:active {
    transform: translateY(0);
}

/* Acciones de calculadora */
.calc-actions {
    margin-top: var(--spacing-xl);
    padding: var(--spacing-xl);
    background: var(--gray-50);
    border-radius: var(--radius-lg);
    text-align: center;
}

.calc-actions h3 {
    color: var(--primary-dark);
    margin-bottom: var(--spacing-lg);
    font-size: var(--font-size-md);
}

.calc-action-buttons {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
}

.calc-action-btn {
    padding: var(--spacing-md);
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition-normal);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--white);
    font-weight: 600;
}

.calc-action-btn[data-type="expense"] {
    background: var(--error-color);
}

.calc-action-btn[data-type="income"] {
    background: var(--success-color);
}

.calc-action-btn[data-type="debt"] {
    background: var(--warning-color);
}

.calc-action-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* ============ ACCIONES RÁPIDAS ============ */
.quick-actions {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    margin: var(--spacing-lg);
}

.action-card {
    background: rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(15px);
    transition: var(--transition-normal);
    cursor: pointer;
    color: inherit;
    text-decoration: none;
    display: block;
}

.action-card:hover {
    background: rgba(255, 255, 255, 0.25);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.action-icon {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-sm);
    color: var(--primary-lighter);
}

.action-title {
    font-size: var(--font-size-sm);
    font-weight: 500;
}

/* ============ PERFIL DE USUARIO ============ */
.profile-header {
    text-align: center;
    padding: var(--spacing-3xl) var(--spacing-lg);
}

.profile-avatar {
    width: 90px;
    height: 90px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-3xl);
    color: var(--white);
    margin: 0 auto var(--spacing-lg);
    box-shadow: var(--shadow-glow);
    transition: var(--transition-normal);
}

.profile-avatar:hover {
    transform: scale(1.05);
}

.profile-name {
    font-size: var(--font-size-xl);
    font-weight: bold;
    margin-bottom: var(--spacing-xs);
}

.profile-email {
    opacity: 0.8;
    margin-bottom: var(--spacing-lg);
    font-size: var(--font-size-base);
}

/* Settings */
.settings-nav {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.setting-item {
    background: var(--white);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    display: flex;
    align-items: center;
    cursor: pointer;
    transition: var(--transition-normal);
    box-shadow: var(--shadow-sm);
    border: none;
    width: 100%;
    text-align: left;
}

.setting-item:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.setting-item.logout-item {
    background: var(--error-color);
    color: var(--white);
    margin-top: var(--spacing-xl);
}

.setting-item.logout-item .setting-icon {
    background: rgba(255,255,255,0.2);
    color: var(--white);
}

.setting-item.logout-item .setting-title {
    color: var(--white);
}

.setting-item.logout-item .setting-desc {
    color: rgba(255,255,255,0.8);
}

.setting-icon {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    background: rgba(118, 55, 188, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    margin-right: var(--spacing-md);
    flex-shrink: 0;
}

.setting-info {
    flex: 1;
    min-width: 0;
}

.setting-title {
    color: var(--primary-dark);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    font-size: var(--font-size-base);
}

.setting-desc {
    color: var(--gray-500);
    font-size: var(--font-size-sm);
}

/* ============ NAVEGACIÓN ============ */
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    max-width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(15px);
    border-top: 1px solid rgba(118, 55, 188, 0.2);
    padding: var(--spacing-md) var(--spacing-lg);
    display: flex;
    justify-content: space-around;
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
    box-shadow: 0 -4px 20px rgba(118, 55, 188, 0.1);
    z-index: var(--z-dropdown);
}

.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-md);
    transition: var(--transition-normal);
    cursor: pointer;
    flex: 1;
    max-width: 80px;
    background: none;
    border: none;
    color: var(--gray-500);
}

.nav-item.active {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

.nav-item:hover:not(.active) {
    background: rgba(118, 55, 188, 0.1);
    color: var(--primary-color);
}

.nav-item i {
    font-size: var(--font-size-lg);
}

.nav-item span {
    font-size: var(--font-size-xs);
    font-weight: 500;
}

/* ============ BOTÓN FLOTANTE ============ */
.floating-button {
    position: fixed;
    bottom: 90px;
    right: var(--spacing-xl);
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--success-color), var(--success-dark));
    border-radius: var(--radius-full);
    border: none;
    color: var(--white);
    font-size: var(--font-size-xl);
    cursor: pointer;
    box-shadow: var(--shadow-glow);
    transition: var(--transition-normal);
    z-index: var(--z-dropdown);
}

.floating-button:hover {
    transform: scale(1.1);
    box-shadow: 0 10px 30px rgba(16, 185, 129, 0.6);
}

.floating-button.pulse {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { opacity: 1; }
    50% { opacity: 0.7; }
    100% { opacity: 1; }
}

/* ============ MODALES ============ */
.modal {
    display: none;
    position: fixed;
    z-index: var(--z-modal);
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(76, 29, 91, 0.8);
    backdrop-filter: blur(8px);
}

.modal-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    width: 90%;
    max-width: 400px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
    animation: modalSlideIn 0.3s ease-out;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translate(-50%, -60%);
    }
    to {
        opacity: 1;
        transform: translate(-50%, -50%);
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xl);
    color: var(--primary-dark);
}

.modal-title {
    font-size: var(--font-size-xl);
    font-weight: bold;
}

.close-btn {
    background: none;
    border: none;
    font-size: var(--font-size-xl);
    cursor: pointer;
    color: var(--gray-500);
    padding: 0;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
}

.close-btn:hover {
    background: var(--gray-100);
    color: var(--error-color);
}

/* ============ FORMULARIOS ============ */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-xs);
    color: var(--primary-dark);
    font-weight: 600;
    font-size: var(--font-size-base);
}

.form-input,
.form-select {
    width: 100%;
    padding: var(--spacing-md);
    border: 2px solid var(--gray-100);
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    transition: var(--transition-normal);
    font-family: inherit;
}

.form-input:focus,
.form-select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(118, 55, 188, 0.1);
}

.form-input:invalid {
    border-color: var(--error-color);
}

.form-hint {
    display: block;
    margin-top: var(--spacing-xs);
    color: var(--gray-500);
    font-size: var(--font-size-sm);
}

.btn-primary {
    width: 100%;
    padding: var(--spacing-md);
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: var(--white);
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    font-weight: bold;
    cursor: pointer;
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.6s;
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

.btn-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.btn-secondary {
    padding: var(--spacing-md) var(--spacing-xl);
    background: var(--gray-100);
    color: var(--text-primary);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-normal);
}

.btn-secondary:hover {
    background: var(--gray-200);
    border-color: var(--gray-300);
    transform: translateY(-1px);
}

/* ============ SWITCHES ============ */
.switch {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 24px;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--gray-300);
    transition: var(--transition-normal);
    border-radius: 24px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 3px;
    bottom: 3px;
    background-color: var(--white);
    transition: var(--transition-normal);
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-sm);
}

input:checked + .slider {
    background-color: var(--info-color);
}

input:focus + .slider {
    box-shadow: 0 0 1px var(--info-color);
}

input:checked + .slider:before {
    transform: translateX(26px);
}

/* ============ METAS ============ */
.goal-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    border-left: 4px solid var(--primary-color);
    transition: var(--transition-normal);
}

.goal-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.goal-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-lg);
    gap: var(--spacing-md);
}

.goal-title {
    color: var(--primary-dark);
    font-size: var(--font-size-md);
    font-weight: bold;
    flex: 1;
    min-width: 0;
}

.goal-amount {
    color: var(--primary-color);
    font-weight: bold;
    font-size: var(--font-size-base);
    text-align: right;
}

.goal-progress {
    margin-bottom: var(--spacing-lg);
}

.goal-progress-bar {
    height: 8px;
    background: var(--gray-100);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: var(--spacing-sm);
}

.goal-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--success-color) 0%, var(--primary-color) 50%, var(--primary-light) 100%);
    border-radius: 4px;
    transition: width var(--transition-slow);
    box-shadow: 0 0 10px rgba(16, 185, 129, 0.3);
}

.goal-progress-text {
    display: flex;
    justify-content: space-between;
    font-size: var(--font-size-base);
    color: var(--gray-500);
}

.goal-days-left {
    color: var(--error-color);
    font-size: var(--font-size-sm);
    font-weight: 500;
}

/* ============ TOAST ============ */
.toast {
    position: fixed;
    top: var(--spacing-xl);
    right: var(--spacing-xl);
    background: var(--success-color);
    color: var(--white);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    z-index: var(--z-toast);
    transform: translateX(100%);
    transition: transform var(--transition-normal);
    font-size: var(--font-size-base);
    box-shadow: var(--shadow-glow);
    max-width: 300px;
}

.toast.show {
    transform: translateX(0);
}

/* ============ LOADING INDICATOR ============ */
.loading-indicator {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(0, 0, 0, 0.8);
    color: var(--white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    text-align: center;
    z-index: var(--z-modal);
    backdrop-filter: blur(10px);
    display: none; /* Hidden by default */
}

.spinner {
    width: 32px;
    height: 32px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--radius-full);
    border-top-color: var(--white);
    animation: spin 1s ease-in-out infinite;
    margin: 0 auto var(--spacing-md);
}

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

/* ============ ESTADOS DE ELEMENTOS ============ */
.no-transactions {
    text-align: center;
    padding: var(--spacing-3xl) var(--spacing-lg);
    color: var(--gray-500);
}

.no-transactions i {
    font-size: var(--spacing-5xl);
    margin-bottom: var(--spacing-xl);
    opacity: 0.3;
}

.no-transactions h3 {
    margin-bottom: var(--spacing-md);
    color: var(--gray-600);
}

/* ============ ANIMACIONES ============ */
.chart-animate-in {
    animation: slideInUp 0.6s ease-out;
}

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

/* ============ RESPONSIVE DESIGN ============ */

/* Tablet */
@media (min-width: 768px) {
    .app-container {
        max-width: 414px;
        box-shadow: var(--shadow-xl);
    }
    
    .bottom-nav {
        max-width: 414px;
    }
}

/* Desktop */
@media (min-width: 1024px) {
    .app-container {
        max-width: 420px;
        margin: var(--spacing-xl) auto;
        border-radius: var(--radius-2xl);
        overflow: hidden;
    }
}

/* Mobile optimizations */
@media (max-width: 480px) {
    :root {
        --spacing-xl: 16px;
        --spacing-2xl: 20px;
        --spacing-3xl: 24px;
    }
    
    .header {
        padding: 30px var(--spacing-md) var(--spacing-xl);
    }
    
    .header h1 {
        font-size: var(--font-size-xl);
    }
    
    .header .subtitle {
        font-size: var(--font-size-sm);
    }
    
    .balance-card,
    .health-bar-container,
    .chart-container,
    .ai-insights {
        margin: var(--spacing-md);
        padding: var(--spacing-lg);
    }
    
    .chart {
        width: 160px;
        height: 160px;
    }
    
    .donut-chart {
        width: 140px;
        height: 140px;
    }
    
    .donut-center {
        width: 80px;
        height: 80px;
    }
    
    .chart-legend {
        gap: var(--spacing-xs);
    }
    
    .legend-item {
        font-size: var(--font-size-xs);
    }
    
    .transactions-section,
    .settings-list {
        margin: var(--spacing-md) var(--spacing-md) 0;
        padding: var(--spacing-lg) var(--spacing-md);
    }
    
    .transaction-card {
        padding: var(--spacing-md);
        margin-bottom: var(--spacing-md);
    }
    
    .transaction-icon {
        width: 35px;
        height: 35px;
        font-size: var(--font-size-base);
    }
    
    .transaction-details h4 {
        font-size: var(--font-size-base);
    }
    
    .transaction-details p {
        font-size: var(--font-size-xs);
    }
    
    .transaction-amount {
        font-size: var(--font-size-base);
    }
    
    .nav-item {
        padding: var(--spacing-xs) var(--spacing-xs);
        gap: var(--spacing-xs);
    }
    
    .nav-item i {
        font-size: var(--font-size-md);
    }
    
    .nav-item span {
        font-size: 10px;
    }
    
    .floating-button {
        width: 50px;
        height: 50px;
        font-size: var(--font-size-lg);
        bottom: 85px;
        right: var(--spacing-lg);
    }
    
    .gauges-container {
        margin: var(--spacing-md);
        gap: var(--spacing-md);
    }
    
    .gauge-card {
        padding: var(--spacing-lg);
    }
    
    .gauge-card h3,
    .gauge-card h4 {
        font-size: var(--font-size-sm);
        margin-bottom: var(--spacing-md);
    }
    
    .progress-text {
        font-size: var(--font-size-base);
    }
    
    .bar-chart {
        padding: var(--spacing-lg) 0;
        min-height: 160px;
    }
    
    .bar-item {
        margin-bottom: var(--spacing-md);
    }
    
    .bar-label {
        min-width: 60px;
        font-size: var(--font-size-xs);
        margin-right: var(--spacing-md);
    }
    
    .bar-container {
        height: 20px;
    }
    
    .bar-value {
        font-size: 11px;
        right: var(--spacing-sm);
    }
    
    .trend-chart {
        height: 160px;
        padding: var(--spacing-lg) 0;
    }
    
    .trend-svg {
        height: 120px;
    }
    
    .chart-legend-horizontal {
        gap: var(--spacing-lg);
        margin-top: var(--spacing-md);
    }
    
    .chart-legend-horizontal .legend-item {
        font-size: var(--font-size-xs);
        gap: var(--spacing-xs);
    }
    
    .toast {
        top: var(--spacing-lg);
        right: var(--spacing-lg);
        left: var(--spacing-lg);
        transform: translateY(-100%);
        font-size: var(--font-size-sm);
        padding: var(--spacing-md) var(--spacing-lg);
    }
    
    .toast.show {
        transform: translateY(0);
    }
    
    .modal-content {
        width: 95%;
        padding: var(--spacing-xl);
        border-radius: var(--radius-lg);
    }
    
    .profile-header {
        padding: var(--spacing-2xl) var(--spacing-md);
    }
    
    .profile-avatar {
        width: 80px;
        height: 80px;
        font-size: 32px;
        margin-bottom: var(--spacing-md);
    }
    
    .profile-name {
        font-size: var(--font-size-lg);
    }
    
    .profile-email {
        font-size: var(--font-size-sm);
        margin-bottom: var(--spacing-md);
    }
    
    .setting-item {
        padding: var(--spacing-md);
        margin-bottom: var(--spacing-xs);
    }
    
    .setting-icon {
        width: 32px;
        height: 32px;
        margin-right: var(--spacing-md);
    }
    
    .setting-title {
        font-size: var(--font-size-base);
    }
    
    .setting-desc {
        font-size: var(--font-size-xs);
    }
    
    .goal-card {
        padding: var(--spacing-lg);
        margin-bottom: var(--spacing-md);
    }
    
    .goal-header {
        flex-wrap: wrap;
        gap: var(--spacing-sm);
        margin-bottom: var(--spacing-md);
    }
    
    .goal-title {
        font-size: var(--font-size-base);
    }
    
    .goal-amount {
        font-size: var(--font-size-sm);
    }
    
    .goal-days-left {
        font-size: 11px;
    }
}

/* Very small screens */
@media (max-width: 360px) {
    .gauges-container {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }
    
    .chart {
        width: 140px;
        height: 140px;
    }
    
    .donut-chart {
        width: 120px;
        height: 120px;
    }
    
    .donut-center {
        width: 70px;
        height: 70px;
    }
    
    .goal-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-xs);
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .balance-card,
    .health-bar-container,
    .ai-insights {
        border: 2px solid var(--white);
    }
    
    .chart-container,
    .transaction-card,
    .report-card,
    .goal-card {
        border: 2px solid var(--primary-color);
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* Dark mode support (for future implementation) */
@media (prefers-color-scheme: dark) {
    /* Variables can be overridden here for dark mode */
}

/* Print styles */
@media print {
    .bottom-nav,
    .floating-button,
    .modal {
        display: none !important;
    }
    
    .screen {
        display: block !important;
    }
    
    .app-container {
        box-shadow: none;
        background: var(--white);
        color: var(--gray-900);
    }
}