/* ============================================
   SISTEMA PROFESIONAL DE COBRANZA
   Diseño gráfico avanzado y atractivo
   Version: 2.7 - Optimizado para móvil
   ============================================ */
:root {
    /* Paleta monocromática blanco y negro */
    --black: #000000;
    --black-soft: #1a1a1a;
    --gray-900: #1f1f1f;
    --gray-800: #2d2d2d;
    --gray-700: #404040;
    --gray-600: #525252;
    --gray-500: #737373;
    --gray-400: #a3a3a3;
    --gray-300: #d4d4d4;
    --gray-200: #e5e5e5;
    --gray-100: #f5f5f5;
    --gray-50: #fafafa;
    --white: #ffffff;
    
    /* Estados de cobranza en escala de grises */
    --status-cobrado: var(--gray-700);
    --status-pendiente: var(--gray-500);
    --status-vencido: var(--gray-900);
    --status-alerta: var(--gray-600);
    
    /* Colores funcionales (Iteria VIA) */
    --primary: #3b82f6;
    --primary-hover: #2563eb;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    
    /* Textos */
    --text-primary: var(--black);
    --text-secondary: var(--gray-700);
    --text-tertiary: var(--gray-500);
    --text-muted: var(--gray-400);
    
    /* Fondos */
    --bg-primary: var(--white);
    --bg-secondary: var(--gray-50);
    --bg-tertiary: var(--gray-100);
    --bg-highlight: var(--gray-100);
    
    /* Bordes */
    --border-color: var(--gray-200);
    --border-dark: var(--gray-300);
    --border-strong: var(--gray-400);
    
    /* Sombras avanzadas */
    --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 12px 32px rgba(0, 0, 0, 0.15);
    --shadow-2xl: 0 20px 40px rgba(0, 0, 0, 0.2);
    
    /* Transiciones */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Espaciado */
    --spacing-xs: 0.5rem;
    --spacing-sm: 0.75rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* Bordes */
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-2xl: 24px;
}

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

/* asegurarnos de que nada se salga de la pantalla
   y evitar que el navegador ajuste el zoom para mostrar
   elementos desbordados */
html,
body {
    max-width: 100%;
    overflow-x: hidden;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    color: var(--text-primary);
    background: linear-gradient(to bottom, #f8f9fa, #ffffff);
    background-attachment: fixed;
    line-height: 1.6;
    font-size: 15px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    letter-spacing: -0.01em;
}

/* Enlaces y elementos interactivos táctiles */
a {
    color: var(--primary);
    text-decoration: none;
    transition: var(--transition);
    min-height: 44px;
    display: inline-flex;
    align-items: center;
}

a:hover {
    color: var(--primary-hover);
}

/* ============================================
   LOGIN PAGE - DISEÑO GRÁFICO AVANZADO
   ============================================ */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0a1628 0%, #0f172a 50%, #0f1d32 100%);
    position: relative;
    overflow: hidden;
}

.login-page::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: patternMove 20s linear infinite;
}

@keyframes patternMove {
    0% { transform: translate(0, 0); }
    100% { transform: translate(50px, 50px); }
}

.login-page::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(255, 255, 255, 0.03) 0%, transparent 50%);
    animation: gradientShift 15s ease infinite;
}

@keyframes gradientShift {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.8; }
}

.login-container {
    width: 100%;
    max-width: 450px;
    padding: 30px;
    position: relative;
    z-index: 1;
    animation: fadeInUp 0.6s ease-out;
}

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

.login-box {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    border-radius: var(--radius-2xl);
    padding: 48px 40px;
    box-shadow: var(--shadow-2xl);
    border: 1px solid rgba(255, 255, 255, 0.3);
    position: relative;
    overflow: hidden;
    max-width: 90%;
    margin: 0 auto;
}

@media (max-width: 480px) {
    .login-box {
        padding: 32px 24px;
    }
    .login-container {
        padding: 20px;
    }
}

.login-box::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--black), var(--gray-700), var(--black));
    background-size: 200% 100%;
    animation: gradientMove 3s ease infinite;
}

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

.login-box h1 {
    text-align: center;
    margin-bottom: 8px;
    color: var(--black);
    font-size: 28px;
    font-weight: 700;
    letter-spacing: -0.5px;
    margin-bottom: 12px;
}

.login-box .subtitle {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 40px;
    font-size: 14px;
    font-weight: 400;
}

.login-info {
    margin-top: 32px;
    padding-top: 24px;
    border-top: 2px solid var(--border-color);
    background: linear-gradient(135deg, var(--bg-secondary), var(--white));
    padding: 24px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.login-info h3 {
    font-size: 11px;
    margin-bottom: 12px;
    color: var(--text-secondary);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.8px;
}

.login-info ul {
    list-style: none;
    font-size: 13px;
}

.login-info li {
    padding: 8px 0;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 10px;
    transition: var(--transition);
}

.login-info li:hover {
    transform: translateX(5px);
    color: var(--black);
}

.login-info li::before {
    content: '→';
    color: var(--black);
    font-weight: 700;
    font-size: 16px;
}

/* ============================================
   NAVBAR - DISEÑO GRÁFICO
   ============================================ */
.navbar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px) saturate(180%);
    padding: 0;
    border-bottom: 2px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-md);
    width: 100%;
    max-width: 100%;
}

/* botón hamburguesa para navegadores móviles */
.navbar-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 28px;
    padding: 12px;
    cursor: pointer;
    color: var(--text-primary);
    transition: transform 0.3s ease;
    min-height: 48px;
    min-width: 48px;
}

.navbar-toggle.active {
    transform: rotate(90deg);
}


.navbar-brand {
    padding: 20px 32px;
    border-right: 1px solid var(--border-color);
    position: relative;
    background: linear-gradient(135deg, var(--bg-secondary), var(--white));
}

.navbar-brand::after {
    content: '';
    position: absolute;
    right: 0;
    top: 20%;
    bottom: 20%;
    width: 2px;
    background: linear-gradient(to bottom, transparent, var(--black), transparent);
}

.navbar-brand h2 {
    color: var(--black);
    font-size: 16px;
    font-weight: 800;
    letter-spacing: 1.5px;
    margin: 0;
    text-transform: uppercase;
}

.navbar-menu {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 20px 32px;
}

.user-info {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 20px;
    border-radius: var(--radius-lg);
    transition: var(--transition);
    background: linear-gradient(135deg, var(--bg-secondary), var(--white));
    border: 1px solid var(--border-color);
    min-height: 48px;
}

.user-info::before {
    content: '';
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--black);
    display: inline-block;
    background-image: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="18" height="18" viewBox="0 0 24 24" fill="white"><path d="M12 12c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm0 2c-2.67 0-8 1.34-8 4v2h16v-2c0-2.66-5.33-4-8-4z"/></svg>');
    background-repeat: no-repeat;
    background-position: center;
    background-size: 18px;
    box-shadow: var(--shadow-sm);
}

.user-info:hover {
    background: linear-gradient(135deg, var(--white), var(--bg-secondary));
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.user-role {
    background: linear-gradient(135deg, var(--black), var(--gray-800));
    color: var(--white);
    padding: 8px 16px;
    border-radius: var(--radius-md);
    font-size: 10px;
    text-transform: uppercase;
    font-weight: 700;
    letter-spacing: 1px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.user-role:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* ============================================
   FORMS - DISEÑO GRÁFICO
   ============================================ */
.form-group {
    margin-bottom: 24px;
    position: relative;
}

.form-group label {
    display: block;
    margin-bottom: 10px;
    font-weight: 700;
    color: var(--text-primary);
    font-size: 12px;
    letter-spacing: 0.8px;
    text-transform: uppercase;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 16px 18px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    font-size: 16px;
    transition: var(--transition);
    background: var(--bg-primary);
    color: var(--text-primary);
    font-family: inherit;
    min-height: 48px;
}

.form-group input:hover,
.form-group select:hover,
.form-group textarea:hover {
    border-color: var(--gray-400);
    box-shadow: var(--shadow-sm);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--black);
    box-shadow: 0 0 0 4px rgba(0, 0, 0, 0.05), var(--shadow-md);
    transform: translateY(-2px);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-actions {
    display: flex;
    gap: 12px;
    margin-top: 32px;
    padding-top: 24px;
    border-top: 2px solid var(--border-color);
}

/* ============================================
   BUTTONS - DISEÑO GRÁFICO AVANZADO
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 16px 32px;
    border: 2px solid transparent;
    border-radius: var(--radius-lg);
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    text-decoration: none;
    transition: var(--transition);
    text-align: center;
    letter-spacing: 0.8px;
    line-height: 1.5;
    white-space: nowrap;
    text-transform: uppercase;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    min-height: 48px;
    min-width: 48px;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--black), var(--gray-800));
    color: var(--white);
    border-color: var(--black);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--gray-800), var(--black));
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.btn-success {
    background: var(--status-cobrado);
    color: var(--white);
    border-color: var(--status-cobrado);
}

.btn-success:hover {
    background: var(--gray-800);
    border-color: var(--gray-800);
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.btn-warning {
    background: var(--status-pendiente);
    color: var(--white);
    border-color: var(--status-pendiente);
}

.btn-warning:hover {
    background: var(--gray-700);
    border-color: var(--gray-700);
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.btn-danger {
    background: var(--status-vencido);
    color: var(--white);
    border-color: var(--status-vencido);
}

.btn-danger:hover {
    background: var(--black);
    border-color: var(--black);
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: linear-gradient(135deg, var(--white), var(--bg-secondary));
    color: var(--text-primary);
    border-color: var(--border-dark);
}

.btn-secondary:hover {
    background: linear-gradient(135deg, var(--bg-secondary), var(--white));
    border-color: var(--black);
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.btn-info {
    background: var(--gray-700);
    color: var(--white);
    border-color: var(--gray-700);
}

.btn-info:hover {
    background: var(--gray-800);
    border-color: var(--gray-800);
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

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

.btn-sm {
    padding: 14px 24px;
    font-size: 14px;
    min-height: 44px;
    min-width: 44px;
}

/* ============================================
   ALERTS - DISEÑO GRÁFICO
   ============================================ */
.alert {
    padding: 18px 24px;
    border-radius: var(--radius-lg);
    margin-bottom: 24px;
    font-size: 14px;
    border-left: 4px solid;
    background: linear-gradient(135deg, var(--bg-secondary), var(--white));
    box-shadow: var(--shadow-md);
    animation: slideInRight 0.3s ease-out;
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.alert-error {
    color: var(--text-primary);
    border-color: var(--status-vencido);
    background: linear-gradient(135deg, #fff5f5, var(--white));
}

.alert-success {
    color: var(--text-primary);
    border-color: var(--status-cobrado);
    background: linear-gradient(135deg, #f0fff4, var(--white));
}

.alert-warning {
    color: var(--text-primary);
    border-color: #f59e0b;
    background: linear-gradient(135deg, #fffbeb, var(--white));
}

.alert-danger {
    color: var(--text-primary);
    border-color: var(--status-vencido);
    background: linear-gradient(135deg, #fff5f5, var(--white));
}

/* ============================================
   DASHBOARD CONTAINER - DISEÑO GRÁFICO
   ============================================ */
.dashboard-container {
    max-width: 1600px;
    margin: 0 auto;
    padding: 40px 48px 64px;
    background: transparent;
    min-height: calc(100vh - 80px);
}

.page-header {
    margin-bottom: 40px;
    padding-bottom: 24px;
    border-bottom: 3px solid var(--border-color);
    position: relative;
    background: linear-gradient(135deg, var(--bg-secondary), var(--white));
    padding: 32px;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
}

.page-header::after {
    content: '';
    position: absolute;
    bottom: -3px;
    left: 32px;
    width: 100px;
    height: 3px;
    background: var(--black);
    border-radius: 3px;
}

.page-header h1 {
    font-size: 32px;
    color: var(--black);
    margin-bottom: 8px;
    font-weight: 800;
    letter-spacing: -0.6px;
    line-height: 1.2;
}

.page-header p {
    color: var(--text-secondary);
    font-size: 15px;
    font-weight: 500;
    margin-top: 4px;
}

/* ============================================
   STATS GRID - TARJETAS GRÁFICAS AVANZADAS
   ============================================ */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
    margin-bottom: 48px;
}

.stat-card {
    background: linear-gradient(135deg, var(--white), var(--bg-secondary));
    padding: 32px;
    border-radius: var(--radius-xl);
    border: 2px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 24px;
    transition: var(--transition-slow);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.stat-card::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 5px;
    background: var(--black);
    transform: scaleY(0);
    transition: transform 0.4s ease;
}

.stat-card::after {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(0, 0, 0, 0.05) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.stat-card:hover {
    border-color: var(--black);
    box-shadow: var(--shadow-xl);
    transform: translateY(-6px) scale(1.02);
}

.stat-card:hover::before {
    transform: scaleY(1);
}

.stat-card:hover::after {
    opacity: 1;
}

.stat-icon {
    width: 72px;
    height: 72px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--black);
    border-radius: var(--radius-xl);
    color: var(--white);
    flex-shrink: 0;
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
    position: relative;
    z-index: 1;
}

.stat-card:hover .stat-icon {
    transform: scale(1.1) rotate(5deg);
    box-shadow: var(--shadow-xl);
}

.stat-icon svg {
    width: 32px;
    height: 32px;
    stroke-width: 2.5;
}

.stat-content {
    flex: 1;
    position: relative;
    z-index: 1;
}

.stat-content h3 {
    font-size: 11px;
    color: var(--text-secondary);
    margin-bottom: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.2px;
}

.stat-value {
    font-size: 32px;
    font-weight: 800;
    color: var(--black);
    letter-spacing: -0.8px;
    line-height: 1.2;
    transition: var(--transition);
}

.stat-card:hover .stat-value {
    color: var(--gray-800);
}

.text-success {
    color: var(--status-cobrado);
    font-weight: 700;
}

/* Estilos especiales para "Total a Cobrar HOY" */
.stat-card-highlight {
    background: linear-gradient(135deg, var(--black), var(--gray-800));
    color: var(--white);
    border: 3px solid var(--gray-700);
    transform: scale(1.02);
}

.stat-card-highlight .stat-content h3 {
    color: var(--gray-300);
    font-weight: 800;
}

.stat-highlight {
    color: var(--white) !important;
    font-size: 36px !important;
    font-weight: 900;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.stat-subtitle {
    color: var(--gray-400);
    font-size: 11px;
    font-weight: 500;
    margin-top: 4px;
    display: block;
}

.stat-card-highlight .stat-icon {
    color: var(--white);
}

.stat-card-highlight:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-2xl);
}

/* ============================================
   ESTILOS PARA LISTA DE COBROS HOY
   ============================================ */
.cobros-hoy-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.cobro-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px;
    background: linear-gradient(135deg, var(--white), var(--bg-secondary));
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--gray-400);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    color: var(--black); /* Forzar texto negro siempre */
}

.cobro-item.cobrado {
    border-left-color: var(--status-cobrado);
    background: linear-gradient(135deg, var(--bg-secondary), var(--white));
}

.cobro-item.pendiente {
    border-left-color: var(--gray-600);
    background: linear-gradient(135deg, var(--white), var(--bg-tertiary));
}

.cobro-item:hover {
    transform: translateX(5px);
    box-shadow: var(--shadow-md);
}

.cobro-info {
    flex: 1;
}

.cobro-info h4 {
    font-size: 16px;
    font-weight: 700;
    color: var(--black) !important;
    margin-bottom: 4px;
}

.cobro-direccion {
    font-size: 14px;
    color: var(--gray-600) !important;
    margin-bottom: 6px;
}

.cobro-tipo {
    font-size: 11px;
    background: var(--gray-200);
    color: var(--black) !important;
    padding: 2px 8px;
    border-radius: 4px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.cobro-monto {
    text-align: center;
    margin: 0 20px;
}

.monto {
    display: block;
    font-size: 20px;
    font-weight: 800;
    color: var(--black) !important;
    margin-bottom: 4px;
}

.status {
    font-size: 12px;
    padding: 4px 8px;
    border-radius: 6px;
    font-weight: 600;
    display: inline-block;
}

.status.cobrado {
    background: var(--status-cobrado);
    color: var(--white) !important;
}

.status.pendiente {
    background: var(--gray-500);
    color: var(--white) !important;
}

.cobro-accion {
    min-width: 100px;
}

.no-cobros {
    text-align: center;
    padding: 40px;
    color: var(--text-secondary);
    font-style: italic;
}

/* Responsive para lista de cobros */
@media (max-width: 768px) {
    .cobro-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }
    
    .cobro-monto {
        margin: 0;
        text-align: left;
    }
}

.text-warning {
    color: var(--status-pendiente);
    font-weight: 700;
}

.text-danger {
    color: var(--status-vencido);
    font-weight: 700;
}

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

.text-muted {
    color: var(--text-tertiary);
}

/* ============================================
   CARDS - DISEÑO GRÁFICO AVANZADO
   ============================================ */
.card {
    background: linear-gradient(135deg, var(--white), var(--bg-secondary));
    border-radius: var(--radius-xl);
    border: 2px solid var(--border-color);
    margin-bottom: 32px;
    overflow: hidden;
    transition: var(--transition-slow);
    box-shadow: var(--shadow-md);
    position: relative;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--black);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}

.card:hover {
    border-color: var(--black);
    box-shadow: var(--shadow-xl);
    transform: translateY(-4px);
}

.card:hover::before {
    transform: scaleX(1);
}

.card-header {
    padding: 24px 32px;
    border-bottom: 2px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: linear-gradient(135deg, var(--bg-secondary), var(--white));
    position: relative;
}

.card-header::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--gray-400), transparent);
}

.card-header h2 {
    font-size: 20px;
    color: var(--black);
    font-weight: 700;
    letter-spacing: -0.3px;
    margin: 0;
}

.card-body {
    padding: 32px;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

.info-grid > div {
    padding: 20px 24px;
    background: linear-gradient(135deg, var(--bg-secondary), var(--white));
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--black);
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.info-grid > div:hover {
    background: linear-gradient(135deg, var(--white), var(--bg-secondary));
    box-shadow: var(--shadow-md);
    transform: translateX(6px);
    border-left-color: var(--gray-700);
}

/* ============================================
   TABLES - TABLAS GRÁFICAS PROFESIONALES
   ============================================ */
.table-container {
    overflow-x: auto;
    background: linear-gradient(135deg, var(--white), var(--bg-secondary));
    border-radius: var(--radius-xl);
    border: 2px solid var(--border-color);
    position: relative;
    box-shadow: var(--shadow-md);
}

.table-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--black);
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
}

.data-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
}

.data-table thead {
    background: linear-gradient(135deg, var(--bg-secondary), var(--white));
    position: sticky;
    top: 0;
    z-index: 10;
}

.data-table th {
    padding: 16px 24px;
    text-align: left;
    font-weight: 700;
    font-size: 11px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1.2px;
    border-bottom: 3px solid var(--border-color);
    white-space: nowrap;
}

.data-table td {
    padding: 20px 24px;
    border-top: 1px solid var(--border-color);
    font-size: 14px;
    color: var(--text-primary);
    vertical-align: middle;
    transition: var(--transition);
    min-width: 80px; /* Asegurar ancho mínimo para todas las celdas */
    display: table-cell !important; /* Forzar display correcto */
    visibility: visible !important; /* Forzar visibilidad */
    min-height: 48px;
}

/* Simplificar primera columna sin elementos complejos */
.data-table td:first-child,
.data-table th:first-child {
    min-width: 80px;
    text-align: center;
    font-weight: 600;
    padding: 18px 12px;
}

/* Asegurar que todas las celdas se comporten normalmente */
.data-table td {
    display: table-cell;
    vertical-align: middle;
}

.data-table tbody tr {
    transition: var(--transition);
    /* position: relative; eliminado para evitar problemas de layout */
}

/* Elemento ::before eliminado completamente - causaba desplazamiento de columnas */

.data-table tbody tr:hover {
    background: linear-gradient(135deg, var(--bg-secondary), var(--white));
    /* transform: scale(1.01); eliminado para evitar saltos */
    box-shadow: var(--shadow-sm);
}

/* ::before hover eliminado también */

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

/* Estados de pago en tablas */
.row-paid {
    background: linear-gradient(135deg, var(--bg-secondary), var(--white));
    border-left: 4px solid var(--status-cobrado);
}

.row-pending {
    border-left: 4px solid var(--status-pendiente);
    background: linear-gradient(135deg, var(--bg-tertiary), var(--white));
}

.row-overdue {
    background: linear-gradient(135deg, var(--bg-highlight), var(--white));
    border-left: 4px solid var(--status-vencido);
}

/* ============================================
   BADGES - ESTADOS GRÁFICOS
   ============================================ */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 8px 16px;
    border-radius: var(--radius-md);
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    border: 2px solid;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    min-height: 32px;
}

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

.badge-info {
    background: linear-gradient(135deg, var(--bg-secondary), var(--white));
    color: var(--gray-700);
    border-color: var(--gray-400);
}

.badge-warning {
    background: linear-gradient(135deg, var(--bg-tertiary), var(--white));
    color: var(--status-pendiente);
    border-color: var(--status-pendiente);
}

.badge-success {
    background: var(--status-cobrado);
    color: var(--white);
    border-color: var(--status-cobrado);
}

.badge-secondary {
    background: linear-gradient(135deg, var(--bg-secondary), var(--white));
    color: var(--text-primary);
    border-color: var(--border-dark);
}

/* ============================================
   PROGRESS BARS - BARRAS GRÁFICAS
   ============================================ */
.progress-bar {
    position: relative;
    width: 100%;
    height: 20px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 2px solid var(--border-color);
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.1);
}

.progress-fill {
    height: 100%;
    background: var(--black);
    transition: width 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: var(--radius-lg);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

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

.progress-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 12px;
    font-weight: 700;
    color: var(--text-primary);
    z-index: 1;
    letter-spacing: 0.3px;
    text-shadow: 0 1px 2px rgba(255, 255, 255, 0.8);
}

/* ============================================
   SECTIONS - DISEÑO GRÁFICO
   ============================================ */
.section {
    margin-bottom: 48px;
    animation: fadeInUp 0.5s ease-out;
}

.section h2 {
    font-size: 22px;
    color: var(--black);
    margin-bottom: 28px;
    font-weight: 700;
    letter-spacing: -0.4px;
    padding-bottom: 16px;
    border-bottom: 3px solid var(--border-color);
    position: relative;
    background: linear-gradient(135deg, var(--bg-secondary), var(--white));
    padding: 24px 32px;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
}

.section h2::after {
    content: '';
    position: absolute;
    bottom: -3px;
    left: 32px;
    width: 80px;
    height: 3px;
    background: var(--black);
    border-radius: 3px;
}

.action-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.filters {
    display: flex;
    gap: 12px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}

/* ============================================
   CLIENTE STYLES - DISEÑO GRÁFICO
   ============================================ */
.cliente-page {
    background: linear-gradient(to bottom, #f8f9fa, #ffffff);
    background-attachment: fixed;
}

.cliente-dashboard {
    padding: 32px;
}

.cliente-summary {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
    margin-bottom: 40px;
}

.summary-card {
    background: linear-gradient(135deg, var(--white), var(--bg-secondary));
    padding: 32px;
    border-radius: var(--radius-xl);
    border: 2px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 24px;
    transition: var(--transition-slow);
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
}

.summary-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--black);
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

.summary-card:hover {
    border-color: var(--black);
    box-shadow: var(--shadow-xl);
    transform: translateY(-6px) scale(1.02);
}

.summary-card:hover::before {
    transform: scaleX(1);
}

.summary-icon {
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--black);
    border-radius: var(--radius-xl);
    color: var(--white);
    flex-shrink: 0;
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
}

.summary-card:hover .summary-icon {
    transform: scale(1.15) rotate(5deg);
    box-shadow: var(--shadow-xl);
}

.summary-icon svg {
    width: 40px;
    height: 40px;
    stroke-width: 2.5;
}

.summary-content h2 {
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.summary-value {
    font-size: 36px;
    font-weight: 800;
    color: var(--black);
    letter-spacing: -1px;
    line-height: 1.2;
}

.summary-value.success {
    color: var(--status-cobrado);
}

.summary-value.warning {
    color: var(--status-pendiente);
}

.cliente-progress-section {
    background: linear-gradient(135deg, var(--white), var(--bg-secondary));
    padding: 40px;
    border-radius: var(--radius-xl);
    border: 2px solid var(--border-color);
    margin-bottom: 40px;
    box-shadow: var(--shadow-md);
}

.cliente-progress-section h2 {
    font-size: 24px;
    margin-bottom: 24px;
    color: var(--black);
    font-weight: 700;
    letter-spacing: -0.5px;
}

.cliente-progress-bar {
    position: relative;
    width: 100%;
    height: 20px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: 16px;
    border: 2px solid var(--border-color);
    box-shadow: inset 0 2px 8px rgba(0, 0, 0, 0.1);
}

.cliente-progress-fill {
    height: 100%;
    background: var(--black);
    transition: width 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.cliente-progress-text {
    font-size: 14px;
    font-weight: 800;
    color: var(--white);
    letter-spacing: 0.5px;
    position: relative;
    z-index: 1;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.progress-info {
    font-size: 15px;
    color: var(--text-secondary);
    text-align: center;
    font-weight: 500;
}

.cliente-prestamos h2 {
    font-size: 28px;
    margin-bottom: 32px;
    color: var(--black);
    font-weight: 700;
    letter-spacing: -0.6px;
}

.prestamos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
    gap: 24px;
}

.prestamo-card {
    background: linear-gradient(135deg, var(--white), var(--bg-secondary));
    border-radius: var(--radius-xl);
    border: 2px solid var(--border-color);
    overflow: hidden;
    transition: var(--transition-slow);
    box-shadow: var(--shadow-md);
    position: relative;
}

.prestamo-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--black);
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

.prestamo-card:hover {
    border-color: var(--black);
    box-shadow: var(--shadow-xl);
    transform: translateY(-6px) scale(1.02);
}

.prestamo-card:hover::before {
    transform: scaleX(1);
}

.prestamo-header {
    padding: 28px;
    background: linear-gradient(135deg, var(--black), var(--gray-800));
    color: var(--white);
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.prestamo-header::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    animation: rotate 20s linear infinite;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.prestamo-header h3 {
    font-size: 24px;
    font-weight: 800;
    letter-spacing: -0.4px;
    position: relative;
    z-index: 1;
}

.prestamo-badge {
    background: rgba(255, 255, 255, 0.25);
    backdrop-filter: blur(10px);
    padding: 8px 16px;
    border-radius: var(--radius-md);
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    position: relative;
    z-index: 1;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.prestamo-body {
    padding: 32px;
}

.prestamo-amount {
    text-align: center;
    margin-bottom: 28px;
    padding-bottom: 28px;
    border-bottom: 2px solid var(--border-color);
}

.prestamo-label {
    font-size: 11px;
    color: var(--text-secondary);
    margin-bottom: 12px;
    display: block;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.prestamo-value {
    font-size: 44px;
    font-weight: 800;
    color: var(--black);
    letter-spacing: -1px;
    line-height: 1.2;
}

.prestamo-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 24px;
}

.prestamo-stat {
    text-align: center;
    padding: 20px;
    background: linear-gradient(135deg, var(--bg-secondary), var(--white));
    border-radius: var(--radius-lg);
    transition: var(--transition);
    border: 2px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}

.prestamo-stat:hover {
    background: linear-gradient(135deg, var(--white), var(--bg-secondary));
    border-color: var(--black);
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.stat-label {
    display: block;
    font-size: 10px;
    color: var(--text-secondary);
    margin-bottom: 8px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.stat-value {
    font-size: 22px;
    font-weight: 800;
    letter-spacing: -0.4px;
}

.prestamo-progress {
    margin-top: 24px;
}

.prestamo-progress-bar {
    position: relative;
    width: 100%;
    height: 12px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: 10px;
    border: 2px solid var(--border-color);
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.1);
}

.prestamo-progress-fill {
    height: 100%;
    background: var(--black);
    transition: width 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: var(--radius-lg);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.prestamo-progress-text {
    text-align: center;
    font-size: 12px;
    font-weight: 700;
    color: var(--text-secondary);
    letter-spacing: 0.2px;
}

.prestamo-footer {
    padding: 0 32px 32px;
}

.prestamos-list {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.prestamo-item {
    background: linear-gradient(135deg, var(--white), var(--bg-secondary));
    border-radius: var(--radius-xl);
    border: 2px solid var(--border-color);
    overflow: hidden;
    transition: var(--transition-slow);
    box-shadow: var(--shadow-md);
}

.prestamo-item:hover {
    border-color: var(--black);
    box-shadow: var(--shadow-xl);
    transform: translateY(-4px);
}

.prestamo-item-header {
    padding: 24px 28px;
    background: linear-gradient(135deg, var(--bg-secondary), var(--white));
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 2px solid var(--border-color);
}

.prestamo-item-header h3 {
    font-size: 20px;
    color: var(--black);
    font-weight: 700;
    letter-spacing: -0.3px;
}

.prestamo-item-body {
    padding: 28px;
}

.prestamo-item-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-bottom: 24px;
}

.prestamo-item-stats > div {
    text-align: center;
    padding: 20px;
    background: linear-gradient(135deg, var(--bg-secondary), var(--white));
    border-radius: var(--radius-lg);
    transition: var(--transition);
    border: 2px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}

.prestamo-item-stats > div:hover {
    background: linear-gradient(135deg, var(--white), var(--bg-secondary));
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.prestamo-item-footer {
    padding: 0 28px 28px;
}

.cliente-pagos-section {
    background: linear-gradient(135deg, var(--white), var(--bg-secondary));
    padding: 40px;
    border-radius: var(--radius-xl);
    border: 2px solid var(--border-color);
    box-shadow: var(--shadow-md);
}

.cliente-pagos-section h2 {
    font-size: 28px;
    margin-bottom: 32px;
    color: var(--black);
    font-weight: 700;
    letter-spacing: -0.6px;
}

.pagos-table-container {
    overflow-x: auto;
    border-radius: var(--radius-lg);
}

.pagos-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
}

.pagos-table thead {
    background: linear-gradient(135deg, var(--bg-secondary), var(--white));
}

.pagos-table th {
    padding: 16px 24px;
    text-align: left;
    font-weight: 700;
    font-size: 11px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1.2px;
    border-bottom: 3px solid var(--border-color);
}

.pagos-table td {
    padding: 18px 24px;
    border-top: 1px solid var(--border-color);
    font-size: 14px;
    transition: var(--transition);
}

.pagos-table tbody tr {
    transition: var(--transition);
}

.pagos-table tbody tr:hover {
    background: linear-gradient(135deg, var(--bg-secondary), var(--white));
    transform: scale(1.01);
    box-shadow: var(--shadow-sm);
}

.pago-realizado {
    background: linear-gradient(135deg, var(--bg-secondary), var(--white));
    border-left: 4px solid var(--status-cobrado);
}

.empty-state {
    text-align: center;
    padding: 80px 20px;
    color: var(--text-tertiary);
    font-size: 16px;
    font-weight: 400;
}

/* ============================================
   INDICADORES DE COBRANZA GRÁFICOS
   ============================================ */
.collection-status {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    border-radius: var(--radius-md);
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    border: 2px solid;
    box-shadow: var(--shadow-sm);
}

.collection-status::before {
    content: '';
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: currentColor;
    box-shadow: 0 0 8px currentColor;
}

.collection-status.cobrado {
    background: linear-gradient(135deg, var(--bg-secondary), var(--white));
    color: var(--status-cobrado);
    border-color: var(--status-cobrado);
}

.collection-status.pendiente {
    background: linear-gradient(135deg, var(--bg-tertiary), var(--white));
    color: var(--status-pendiente);
    border-color: var(--status-pendiente);
}

.collection-status.vencido {
    background: linear-gradient(135deg, var(--bg-highlight), var(--white));
    color: var(--status-vencido);
    border-color: var(--status-vencido);
}

/* ============================================
   RESPONSIVE - OPTIMIZADO PARA MÓVIL
   ============================================ */

/* backdrop overlay used when mobile nav is open */
.navbar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.45);
    backdrop-filter: blur(4px);
    z-index: 995;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.navbar-overlay.show {
    display: block;
    opacity: 1;
}

/* animated collapse for mobile menu */
.navbar-menu {
    transition: max-height 0.4s ease, opacity 0.4s ease;
    max-height: 0;
    overflow: hidden;
    opacity: 0;
}

.navbar-menu.open {
    max-height: 800px;
    opacity: 1;
}

/* TABLET Y MÓVIL GRANDE (hasta 768px) */
@media (max-width: 768px) {
    /* Contenedor principal con padding reducido */
    .dashboard-container {
        padding: 20px 16px 32px;
    }
    
    /* Navbar responsive con menú colapsable */
    .navbar {
        flex-direction: column;
        gap: 12px;
        padding: 12px 16px;
    }

    .navbar-toggle {
        display: block;
        align-self: flex-end;
        font-size: 28px;
        padding: 8px 12px;
        min-height: 44px;
        min-width: 44px;
    }

    .navbar-menu {
        width: 100%;
        justify-content: space-between;
        padding: 16px 0;
        display: none;
        flex-direction: column;
        gap: 16px;
    }

    .navbar-menu.open {
        display: flex;
    }
    
    .navbar-brand {
        border-right: none;
        border-bottom: 1px solid var(--border-color);
        padding-bottom: 12px;
        width: 100%;
    }

    .navbar-brand h2 {
        font-size: 16px;
        text-align: center;
    }
    
    /* Botones más grandes para táctil (mínimo 44x44px) */
    .btn, 
    button {
        padding: 16px 24px;
        font-size: 15px;
        min-height: 48px;
        border-radius: var(--radius-lg);
    }

    .btn-sm {
        padding: 14px 20px;
        font-size: 14px;
        min-height: 44px;
    }

    /* Formularios más grandes para móvil */
    .form-group input,
    .form-group select,
    .form-group textarea {
        padding: 16px 18px;
        font-size: 16px; /* Previene zoom automático en iOS */
        min-height: 48px;
    }

    .form-group label {
        font-size: 14px;
        margin-bottom: 8px;
    }
    
    /* Grids a una columna */
    .form-row,
    .stats-grid,
    .prestamos-grid,
    .cliente-summary {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    /* Stat cards con espaciado mejorado */
    .stat-card {
        padding: 20px;
        min-height: 100px;
    }

    .stat-value {
        font-size: 28px;
    }
    
    /* Tablas con scroll horizontal mejorado */
    .table-responsive,
    .table-container {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        border-radius: var(--radius-lg);
        box-shadow: inset 0 0 0 1px var(--border-color);
    }

    .data-table {
        min-width: 600px; /* Ancho mínimo para evitar aplastamiento */
    }

    .data-table th,
    .data-table td {
        padding: 14px 12px;
        font-size: 14px;
    }

    /* Espacio adicional en primera y última columna */
    .data-table th:first-child,
    .data-table td:first-child {
        padding-left: 16px;
    }

    .data-table th:last-child,
    .data-table td:last-child {
        padding-right: 16px;
    }

    /* Cards con padding reducido */
    .card-body {
        padding: 20px 16px;
    }

    .card-header {
        padding: 16px;
    }

    .card-header h2 {
        font-size: 18px;
    }

    /* Títulos de página más pequeños */
    .page-header h1 {
        font-size: 24px;
        line-height: 1.3;
    }

    .page-header {
        margin-bottom: 20px;
        gap: 12px;
    }

    /* Info grid responsive */
    .info-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .info-grid > div {
        padding: 12px;
        border-left: 3px solid var(--border-dark);
        background: var(--bg-secondary);
        border-radius: var(--radius-md);
    }

    /* Cobros hoy con mejor espaciado */
    .cobros-hoy-list {
        gap: 12px;
    }

    .cobro-item {
        padding: 16px;
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }

    .cobro-info,
    .cobro-monto,
    .cobro-accion {
        width: 100%;
    }

    .cobro-accion .btn {
        width: 100%;
    }

    /* Action buttons a full width */
    .action-buttons {
        flex-direction: column;
        gap: 12px;
    }

    .action-buttons .btn {
        width: 100%;
    }

    .form-actions {
        flex-direction: column;
        gap: 12px;
    }

    .form-actions .btn {
        width: 100%;
    }

    /* Ajuste de valores grandes */
    .prestamo-value,
    .summary-value {
        font-size: 32px;
    }

    /* Badges y etiquetas más grandes */
    .badge {
        padding: 8px 16px;
        font-size: 13px;
    }

    /* Progress bar más visible */
    .progress-bar {
        height: 32px;
        font-size: 14px;
    }
}

/* MÓVIL PEQUEÑO (hasta 576px) */
@media (max-width: 576px) {
    /* Padding ultra reducido para pantallas pequeñas */
    .dashboard-container {
        padding: 16px 12px 24px;
    }

    /* Navbar más compacto */
    .navbar {
        padding: 10px 12px;
    }

    .navbar-brand h2 {
        font-size: 14px;
    }

    .navbar-menu {
        padding: 12px 0;
        gap: 12px;
    }

    /* Botones con padding ajustado */
    .btn {
        padding: 14px 20px;
        font-size: 14px;
        min-height: 44px;
    }

    .btn-sm {
        padding: 12px 16px;
        font-size: 13px;
        min-height: 40px;
    }

    /* Formularios compactos */
    .form-group {
        margin-bottom: 16px;
    }

    .form-group input,
    .form-group select,
    .form-group textarea {
        padding: 14px 16px;
        font-size: 16px;
    }

    /* Cards muy compactos */
    .card-body {
        padding: 16px 12px;
    }

    .card-header {
        padding: 14px 12px;
    }

    .card-header h2 {
        font-size: 16px;
    }

    /* Títulos ajustados */
    .page-header h1 {
        font-size: 20px;
    }

    /* Valores más pequeños */
    .stat-value {
        font-size: 24px;
    }

    .prestamo-value,
    .summary-value {
        font-size: 28px;
    }

    /* Tablas ultra compactas */
    .data-table th,
    .data-table td {
        padding: 12px 10px;
        font-size: 13px;
    }

    /* Stat cards compactos */
    .stat-card {
        padding: 16px;
    }

    .stat-card h3 {
        font-size: 11px;
    }

    /* Info grid más compacto */
    .info-grid > div {
        padding: 10px;
        font-size: 13px;
    }

    /* Cobros hoy más compacto */
    .cobro-item {
        padding: 14px;
    }

    .cobro-item h4 {
        font-size: 15px;
    }

    .cobro-monto .monto {
        font-size: 20px;
    }

    /* Progress bar más pequeño */
    .progress-bar {
        height: 28px;
        font-size: 12px;
    }
}

/* MÓVIL MUY PEQUEÑO (hasta 380px) */
@media (max-width: 380px) {
    .dashboard-container {
        padding: 12px 8px 20px;
    }

    .navbar {
        padding: 8px 10px;
    }

    .navbar-brand h2 {
        font-size: 13px;
    }

    .btn {
        padding: 12px 16px;
        font-size: 13px;
    }

    .card-body {
        padding: 14px 10px;
    }

    .stat-value {
        font-size: 22px;
    }

    .page-header h1 {
        font-size: 18px;
    }
}

/* MEJORAS TÁCTILES GENERALES */
@media (hover: none) and (pointer: coarse) {
    /* Dispositivos táctiles: aumentar áreas clickeables */
    a, button, .btn, input[type="submit"], input[type="button"] {
        min-height: 44px;
        min-width: 44px;
    }

    /* Aumentar padding en elementos interactivos */
    .data-table tbody tr {
        cursor: pointer;
    }

    .data-table tbody tr:active {
        background: var(--bg-highlight);
        transform: scale(0.98);
    }

    /* Feedback visual inmediato en toques */
    .btn:active {
        transform: scale(0.95);
        transition: transform 0.1s;
    }

    /* Desactivar hover effects en táctil */
    .btn:hover::before {
        display: none;
    }
}


/* ============================================
   SCROLLBAR PERSONALIZADO
   ============================================ */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb {
    background: var(--gray-600);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--gray-700);
}

/* ============================================
   BUSCADOR DE CLIENTES - TRABAJADOR
   ============================================ */
.search-box-container {
    background: linear-gradient(135deg, var(--white), var(--bg-secondary));
    border: 2px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 24px 28px;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.search-box-container::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 5px;
    background: var(--black);
    border-radius: 3px 0 0 3px;
}

.search-box-container:focus-within {
    border-color: var(--black);
    box-shadow: 0 0 0 4px rgba(0, 0, 0, 0.06), var(--shadow-lg);
    transform: translateY(-2px);
}

.search-box-inner {
    display: flex;
    align-items: center;
    gap: 14px;
    position: relative;
}

.search-icon-wrapper {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--black);
    border-radius: var(--radius-md);
    color: var(--white);
    flex-shrink: 0;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.search-box-container:focus-within .search-icon-wrapper {
    transform: scale(1.08);
    box-shadow: var(--shadow-md);
}

#buscador-clientes {
    flex: 1;
    border: none;
    outline: none;
    background: transparent;
    font-size: 16px;
    font-family: 'Inter', sans-serif;
    font-weight: 500;
    color: var(--text-primary);
    padding: 12px 4px;
    min-height: 44px;
}

#buscador-clientes::placeholder {
    color: var(--text-muted);
    font-weight: 400;
}

.search-clear-btn {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gray-200);
    border-radius: 50%;
    cursor: pointer;
    color: var(--text-secondary);
    transition: var(--transition);
    flex-shrink: 0;
}

.search-clear-btn:hover {
    background: var(--black);
    color: var(--white);
    transform: rotate(90deg);
}

.search-results-count {
    margin-top: 14px;
    padding: 10px 16px;
    border-radius: var(--radius-md);
    font-size: 13px;
    font-weight: 500;
    animation: fadeInUp 0.2s ease-out;
}

.search-results-count.has-results {
    background: linear-gradient(135deg, #f0fff4, #e8f5e9);
    color: #2e7d32;
    border: 1px solid #c8e6c9;
}

.search-results-count.no-results {
    background: linear-gradient(135deg, #fff8e1, #fff3e0);
    color: #e65100;
    border: 1px solid #ffe0b2;
}

@media (max-width: 768px) {
    .search-box-container {
        padding: 16px 18px;
    }

    #buscador-clientes {
        font-size: 15px;
    }
}

/* ============================================
   MODAL - PAGO RÁPIDO
   ============================================ */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(6px);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    opacity: 0;
    transition: opacity 0.25s ease;
}

.modal-overlay.modal-visible {
    opacity: 1;
}

.modal-container {
    background: var(--white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-2xl);
    width: 100%;
    max-width: 460px;
    transform: translateY(20px) scale(0.97);
    transition: transform 0.25s ease;
    overflow: hidden;
    border: 2px solid var(--border-color);
}

.modal-visible .modal-container {
    transform: translateY(0) scale(1);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    border-bottom: 2px solid var(--border-color);
    background: linear-gradient(135deg, var(--bg-secondary), var(--white));
}

.modal-header h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

.modal-close {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    background: var(--gray-200);
    border-radius: 50%;
    font-size: 22px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
    line-height: 1;
}

.modal-close:hover {
    background: var(--black);
    color: var(--white);
    transform: rotate(90deg);
}

.modal-body {
    padding: 24px;
}

.modal-cliente-info {
    background: linear-gradient(135deg, var(--bg-secondary), var(--bg-tertiary));
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 16px 20px;
    margin-bottom: 20px;
}

.modal-cliente-nombre {
    font-size: 17px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.modal-cliente-meta {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    color: var(--text-secondary);
}

.modal-cliente-meta .badge {
    background: var(--black);
    color: var(--white);
    padding: 3px 10px;
    border-radius: var(--radius-sm);
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.modal-monto-wrapper {
    display: flex;
    align-items: center;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition);
    background: var(--white);
}

.modal-monto-wrapper:focus-within {
    border-color: var(--black);
    box-shadow: 0 0 0 4px rgba(0, 0, 0, 0.06);
}

.modal-monto-prefix {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 52px;
    background: var(--black);
    color: var(--white);
    font-size: 18px;
    font-weight: 700;
    flex-shrink: 0;
}

#modal-monto {
    flex: 1;
    border: none;
    outline: none;
    padding: 14px 16px;
    font-size: 22px;
    font-weight: 700;
    font-family: 'Inter', sans-serif;
    color: var(--text-primary);
    background: transparent;
    min-height: 52px;
}

#modal-monto::placeholder {
    color: var(--text-muted);
    font-weight: 400;
}

.modal-monto-sugerido {
    display: block;
    margin-top: 8px;
    font-size: 12px;
    color: var(--text-muted);
    font-weight: 500;
}

.modal-footer {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 10px;
    padding: 16px 24px;
    border-top: 2px solid var(--border-color);
    background: linear-gradient(135deg, var(--bg-secondary), var(--white));
}

/* Cobro accion - flex para botones lado a lado */
.cobro-accion {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
    align-items: center;
}

/* Paso 2: Confirmación visual */
.modal-footer-confirmar {
    flex-direction: column;
    gap: 12px;
}

.modal-confirmar-texto {
    width: 100%;
    text-align: center;
    padding: 12px 16px;
    background: linear-gradient(135deg, #fff8e1, #fff3e0);
    border: 1px solid #ffe0b2;
    border-radius: var(--radius-md);
    font-size: 14px;
    color: #e65100;
    line-height: 1.5;
}

.modal-confirmar-botones {
    display: flex;
    gap: 10px;
    width: 100%;
    justify-content: flex-end;
}

/* Responsive modal */
@media (max-width: 768px) {
    .modal-container {
        max-width: 100%;
    }

    .modal-header h3 {
        font-size: 16px;
    }

    #modal-monto {
        font-size: 18px;
    }

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

    .modal-footer .btn {
        width: 100%;
    }

    .modal-confirmar-botones {
        flex-direction: column;
    }

    .modal-confirmar-botones .btn {
        width: 100%;
    }
}