/* Reset y base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    overflow-x: hidden;
    width: 100%;
}

:root {
    --primary-color: #4f46e5;
    --primary-dark: #3730a3;
    --secondary-color: #06b6d4;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --light-color: #f8fafc;
    --dark-color: #1e293b;
    --gray-color: #64748b;
    --border-color: #e2e8f0;
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --border-radius: 8px;
    --transition: all 0.2s ease;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
    line-height: 1.6;
    color: var(--dark-color);
    background-color: var(--light-color);
}

/* Navegación */
.navbar {
    background: white;
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 64px;
}

.nav-brand h2 {
    color: var(--primary-color);
    font-size: 1.5rem;
    font-weight: 700;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.nav-link {
    padding: 0.5rem 1rem;
    text-decoration: none;
    color: var(--gray-color);
    border-radius: var(--border-radius);
    transition: var(--transition);
    font-weight: 500;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 0.875rem;
}

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

.nav-link.active {
    background-color: var(--primary-color);
    color: white;
}

.logout-btn {
    background-color: var(--danger-color) !important;
    color: white !important;
}

.logout-btn:hover {
    background-color: #dc2626 !important;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    padding: 0.5rem;
}

.nav-toggle span {
    width: 20px;
    height: 2px;
    background-color: var(--gray-color);
    margin: 2px 0;
    transition: var(--transition);
}

/* Contenido principal */
.main-content {
    margin-top: 64px;
    min-height: calc(100vh - 64px);
    padding: 2rem 1rem;
}

/* Componentes comunes */
.container {
    max-width: 1200px;
    margin: 0 auto;
}

.card {
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    overflow: hidden;
}

.card-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-header h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--dark-color);
}

.card-header p {
    color: var(--gray-color);
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

.card-body {
    padding: 1.5rem;
    overflow: hidden;
    width: 100%;
    box-sizing: border-box;
}

/* Botones */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    border: none;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.875rem;
    line-height: 1.5;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

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

.btn-primary:hover:not(:disabled) {
    background-color: var(--primary-dark);
}

.btn-outline {
    background-color: transparent;
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
}

.btn-outline:hover:not(:disabled) {
    background-color: var(--primary-color);
    color: white;
}

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

.btn-danger:hover:not(:disabled) {
    background-color: #dc2626;
}

.btn-sm {
    padding: 0.25rem 0.75rem;
    font-size: 0.75rem;
}

.btn-full {
    width: 100%;
}

/* Formularios */
.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--dark-color);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 0.875rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.form-text {
    font-size: 0.75rem;
    color: var(--gray-color);
    margin-top: 0.25rem;
}

/* Login */
.login-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 1rem;
}

.login-card {
    background: white;
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 400px;
}

.login-header {
    text-align: center;
    margin-bottom: 2rem;
}

.login-header h1 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.login-header p {
    color: var(--gray-color);
}

.login-footer {
    text-align: center;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
}

.login-footer p {
    font-size: 0.875rem;
    color: var(--gray-color);
}

.register-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
}

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

.register-link::after {
    content: '→';
    transition: transform 0.2s ease;
}

.register-link:hover::after {
    transform: translateX(3px);
}

/* Dashboard */
.dashboard-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
    overflow-x: hidden;
    width: 100%;
    box-sizing: border-box;
}

.dashboard-header {
    margin-bottom: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: 1rem;
}

.header-content h1 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--dark-color);
    margin-bottom: 0.5rem;
}

.header-content p {
    color: var(--gray-color);
}

.month-selector {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: white;
    padding: 0.75rem 1rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
}

.month-selector label {
    font-weight: 500;
    color: var(--dark-color);
    white-space: nowrap;
}

.month-selector select {
    border: none;
    background: transparent;
    font-size: 0.875rem;
    color: var(--dark-color);
    min-width: 150px;
    outline: none;
    cursor: pointer;
}

.summary-cards {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 2rem;
    padding: 0 0.5rem;
}

.summary-card {
    background: white;
    padding: 1rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    gap: 1rem;
    flex: 1;
    min-width: 0;
    overflow: hidden;
}

.summary-card.income {
    border-left: 4px solid var(--success-color);
}

.summary-card.expense {
    border-left: 4px solid var(--danger-color);
}

.summary-card.balance {
    border-left: 4px solid var(--primary-color);
}

.summary-card.positive {
    border-left: 4px solid var(--success-color);
}

.summary-card.negative {
    border-left: 4px solid var(--danger-color);
}

.card-icon {
    font-size: 2rem;
}

.card-content {
    flex: 1;
    min-width: 0;
    overflow: hidden;
}

.card-content h3 {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--gray-color);
    margin-bottom: 0.25rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.amount {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--dark-color);
    word-break: break-all;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 100%;
}

.dashboard-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    overflow-x: hidden;
}

.chart-section,
.recent-transactions {
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    overflow: hidden;
    width: 100%;
}

/* Transacciones */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.page-header h1 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--dark-color);
}

.filters-section {
    background: white;
    padding: 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    margin-bottom: 1.5rem;
}

.filters {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    align-items: end;
}

.filter-group {
    display: flex;
    flex-direction: column;
}

.filter-group label {
    font-weight: 500;
    color: var(--dark-color);
    margin-bottom: 0.5rem;
}

.transaction-card,
.expense-card {
    background: white;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 1rem;
    margin-bottom: 1rem;
    transition: var(--transition);
}

.transaction-card:hover,
.expense-card:hover {
    box-shadow: var(--shadow);
}

.transaction-main,
.expense-main {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
}

.transaction-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.25rem;
}

.transaction-category {
    font-weight: 600;
    color: var(--dark-color);
}

.transaction-type {
    padding: 0.125rem 0.5rem;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 500;
}

.transaction-type.ingreso {
    background-color: #dcfce7;
    color: #166534;
}

.transaction-type.gasto {
    background-color: #fef2f2;
    color: #991b1b;
}

.transaction-description,
.expense-description {
    color: var(--gray-color);
    margin-bottom: 0.25rem;
}

.transaction-date {
    font-size: 0.75rem;
    color: var(--gray-color);
}

.transaction-amount,
.expense-amount {
    font-size: 1.1rem;
    font-weight: 700;
    white-space: nowrap;
    flex-shrink: 0;
    min-width: fit-content;
    text-align: right;
}

.transaction-amount.ingreso {
    color: var(--success-color);
}

.transaction-amount.gasto {
    color: var(--danger-color);
}

.transaction-actions,
.expense-actions {
    display: flex;
    gap: 0.5rem;
}

.transaction-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
    border-bottom: 1px solid var(--border-color);
    gap: 1rem;
    overflow: hidden;
}

.transaction-info {
    flex: 1;
    min-width: 0;
    overflow: hidden;
}

.transaction-category {
    font-weight: 600;
    color: var(--dark-color);
    margin-bottom: 0.25rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.transaction-description {
    font-size: 0.875rem;
    color: var(--gray-color);
    margin-bottom: 0.25rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

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

/* Gastos Fijos */
.expenses-info {
    margin-bottom: 1.5rem;
}

.info-card {
    background: var(--primary-color);
    color: white;
    padding: 1rem;
    border-radius: var(--border-radius);
}

.expense-category {
    margin-bottom: 2rem;
}

.category-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--dark-color);
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--primary-color);
}

.category-expenses {
    display: grid;
    gap: 1rem;
}

.expense-details {
    display: flex;
    gap: 1rem;
    font-size: 0.75rem;
    color: var(--gray-color);
}

.expense-frequency {
    background: var(--light-color);
    padding: 0.125rem 0.5rem;
    border-radius: 12px;
}

.total-summary {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 2px solid var(--border-color);
}

.total-card {
    background: var(--primary-color);
    color: white;
    padding: 1.5rem;
    border-radius: var(--border-radius);
    text-align: center;
}

.total-amount {
    font-size: 2rem;
    font-weight: 700;
    margin-top: 0.5rem;
}

/* Perfil */
.profile-container {
    max-width: 800px;
    margin: 0 auto;
}

.profile-section {
    margin-bottom: 2rem;
}

.preference-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
    border-bottom: 1px solid var(--border-color);
}

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

.preference-info h4 {
    font-weight: 600;
    color: var(--dark-color);
    margin-bottom: 0.25rem;
}

.preference-info p {
    font-size: 0.875rem;
    color: var(--gray-color);
}

/* Switch */
.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: #ccc;
    transition: .4s;
    border-radius: 24px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    transition: .4s;
    border-radius: 50%;
}

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

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

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

/* Modales */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
}

.modal-content {
    background-color: white;
    margin: 5% auto;
    padding: 0;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    width: 90%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-small {
    max-width: 400px;
}

.modal-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--dark-color);
}

.modal-body {
    padding: 1.5rem;
}

.modal-actions {
    padding: 1.5rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
}

.close {
    color: var(--gray-color);
    font-size: 1.5rem;
    font-weight: bold;
    cursor: pointer;
    line-height: 1;
}

.close:hover {
    color: var(--dark-color);
}

/* Modal Mejorado */
.modal-enhanced {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(5px);
    animation: modalFadeIn 0.3s ease-out;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 0.5rem;
    box-sizing: border-box;
    overflow-x: hidden;
    overflow-y: auto;
    z-index: 1000;
}

.modal-enhanced.show {
    display: flex;
}

.modal-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.modal-enhanced-content {
    position: relative;
    transform: scale(0.9);
    animation: modalSlideIn 0.3s ease-out forwards;
    width: calc(100% - 1rem);
    max-width: 550px;
    max-height: 95vh;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
    display: flex;
    flex-direction: column;
    margin: auto;
    box-sizing: border-box;
    background: white;
    z-index: 1001;
}

.modal-enhanced-header {
    background: linear-gradient(135deg, var(--primary-color), #6366f1);
    color: white;
    padding: 1.5rem;
    border-bottom: none;
    flex-shrink: 0;
}

.modal-title-section {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.modal-icon {
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.modal-enhanced-header h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
    margin: 0;
}

.modal-close-btn {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    border-radius: 8px;
    color: white;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s ease;
}

.modal-close-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.1);
}

.modal-enhanced-body {
    padding: 1.5rem;
    background: white;
    overflow-y: auto;
    overflow-x: hidden;
    flex: 1;
    min-height: 0;
    box-sizing: border-box;
}

.modal-enhanced-footer {
    padding: 1rem 1.5rem;
    background: #f8fafc;
    border-top: 1px solid #e2e8f0;
    display: flex;
    gap: 0.75rem;
    justify-content: flex-end;
    flex-shrink: 0;
    box-sizing: border-box;
}

/* Selector de tipo de transacción */
.transaction-type-selector {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    padding: 1rem;
    background: #f8fafc;
    border-radius: 12px;
    box-sizing: border-box;
}

.type-option {
    flex: 1;
    position: relative;
    min-width: 0;
}

.type-option input[type="radio"] {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.type-option label {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem;
    border: 2px solid #e2e8f0;
    border-radius: 10px;
    background: white;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
    width: 100%;
    box-sizing: border-box;
}

.type-option label i {
    font-size: 1.5rem;
    color: #64748b;
    transition: all 0.3s ease;
}

.type-option label span {
    font-weight: 600;
    color: #475569;
}

.type-option input[type="radio"]:checked + label {
    border-color: var(--primary-color);
    background: rgba(59, 130, 246, 0.05);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.15);
}

.type-option input[type="radio"]:checked + label i {
    color: var(--primary-color);
}

.type-option input[type="radio"]:checked + label span {
    color: var(--primary-color);
}

.type-option[data-type="gasto"] input[type="radio"]:checked + label {
    border-color: #ef4444;
    background: rgba(239, 68, 68, 0.05);
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.15);
}

.type-option[data-type="gasto"] input[type="radio"]:checked + label i,
.type-option[data-type="gasto"] input[type="radio"]:checked + label span {
    color: #ef4444;
}

.type-option[data-type="ingreso"] input[type="radio"]:checked + label {
    border-color: #10b981;
    background: rgba(16, 185, 129, 0.05);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.15);
}

.type-option[data-type="ingreso"] input[type="radio"]:checked + label i,
.type-option[data-type="ingreso"] input[type="radio"]:checked + label span {
    color: #10b981;
}

/* Formulario mejorado */
.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.form-enhanced {
    position: relative;
}

.form-enhanced label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    color: #374151;
    margin-bottom: 0.75rem;
}

.form-enhanced label i {
    color: var(--primary-color);
    width: 16px;
    text-align: center;
}

.form-enhanced input,
.form-enhanced select,
.form-enhanced textarea {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 2px solid #e2e8f0;
    border-radius: 10px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: white;
}

.form-enhanced input:focus,
.form-enhanced select:focus,
.form-enhanced textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
    transform: translateY(-1px);
}

.amount-input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.currency-symbol {
    position: absolute;
    left: 0.5rem;
    color: #64748b;
    font-weight: 600;
    z-index: 1;
    pointer-events: none;
}

.amount-input-wrapper input {
    padding-left: 1.8rem;
}

/* Botones mejorados */
.btn-enhanced {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 1.5rem;
    font-weight: 600;
    border-radius: 10px;
    transition: all 0.3s ease;
}

.btn-enhanced:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.3);
}

.btn-ghost {
    background: transparent;
    border: 2px solid #e2e8f0;
    color: #64748b;
}

.btn-ghost:hover {
    border-color: #cbd5e1;
    background: #f8fafc;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

/* Animaciones */
@keyframes modalFadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes modalSlideIn {
    from {
        transform: scale(0.9) translateY(-20px);
        opacity: 0;
    }
    to {
        transform: scale(1) translateY(0);
        opacity: 1;
    }
}

@keyframes modalSlideOut {
    from {
        transform: scale(1) translateY(0);
        opacity: 1;
    }
    to {
        transform: scale(0.9) translateY(-20px);
        opacity: 0;
    }
}

/* Responsive */
@media (max-width: 768px) {
    .modal-enhanced {
        padding: 0.5rem;
    }
    
    .modal-enhanced-content {
        max-width: 100%;
        max-height: 95vh;
    }
    
    .modal-enhanced-header {
        padding: 1.5rem;
    }
    
    .modal-enhanced-body {
        padding: 1.5rem;
        /* Asegurar que haya espacio para scroll en móviles */
        max-height: calc(95vh - 200px);
    }
    
    .form-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .transaction-type-selector {
        padding: 0.75rem;
        margin-bottom: 1.5rem;
    }
    
    .type-option label {
        padding: 0.75rem;
        font-size: 0.9rem;
    }
    
    .modal-enhanced-footer {
        flex-direction: column-reverse;
        padding: 1rem 1.5rem;
        gap: 0.75rem;
    }
    
    .modal-enhanced-footer .btn {
        width: 100%;
        justify-content: center;
        padding: 1rem;
        font-size: 1rem;
    }
    
    .modal-title-section {
        gap: 0.75rem;
    }
    
    .modal-icon {
        width: 45px;
        height: 45px;
        font-size: 1.25rem;
    }
    
    .modal-enhanced-header h3 {
        font-size: 1.25rem;
    }
}

/* Pantallas muy pequeñas */
@media (max-width: 480px) {
    .modal-enhanced {
        padding: 0.125rem;
    }
    
    .modal-enhanced-content {
        width: calc(100vw - 0.25rem);
        border-radius: 12px;
    }
    
    .modal-enhanced-header {
        padding: 0.75rem;
    }
    
    .modal-enhanced-header h3 {
        font-size: 1.25rem;
    }
    
    .modal-enhanced-body {
        padding: 0.75rem;
    }
    
    .modal-enhanced-footer {
        padding: 0.5rem 0.75rem;
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        margin: 0;
    }
    
    .modal-enhanced-footer .btn + .btn {
        margin-top: 0.5rem;
    }
    
    .form-enhanced label {
        font-size: 0.9rem;
    }
    
    .form-enhanced input,
    .form-enhanced select,
    .form-enhanced textarea {
        padding: 0.75rem;
        font-size: 0.9rem;
    }
    
    /* Ajustes específicos para campo de monto en móviles pequeños */
    .amount-input-wrapper input {
        padding-left: 2rem !important;
        font-size: 1.1rem;
        min-height: 48px;
    }
    
    .currency-symbol {
        left: 0.6rem;
        font-size: 1.1rem;
        font-weight: 700;
    }
}

/* Loading y mensajes */
.loading-spinner {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(255, 255, 255, 0.8);
    z-index: 3000;
    align-items: center;
    justify-content: center;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--border-color);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.loading-message {
    text-align: center;
    padding: 2rem;
    color: var(--gray-color);
}

.no-data {
    text-align: center;
    padding: 2rem;
    color: var(--gray-color);
    font-style: italic;
}

/* Responsivo */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 64px;
        left: -100%;
        width: 100%;
        background: white;
        flex-direction: column;
        align-items: stretch;
        box-shadow: var(--shadow);
        transition: var(--transition);
        padding: 1rem 0;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-toggle {
        display: flex;
    }

    .main-content {
        padding: 1rem;
    }

    .dashboard-content {
        grid-template-columns: 1fr;
    }
    
    .dashboard-header {
        flex-direction: column;
        align-items: stretch;
    }
    
    .month-selector {
        justify-content: center;
    }

    .summary-cards {
        flex-direction: column;
        padding: 0;
    }

    .summary-card {
        padding: 1.5rem;
        margin: 0;
    }

    .page-header {
        flex-direction: column;
        gap: 1rem;
        align-items: stretch;
    }

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

    .transaction-main,
    .expense-main {
        flex-direction: column;
        gap: 0.5rem;
    }

    .transaction-actions,
    .expense-actions {
        justify-content: flex-end;
    }

    .modal-content {
        margin: 10% auto;
        width: 95%;
    }

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

@media (max-width: 480px) {
    .nav-container {
        padding: 0 0.5rem;
    }

    .main-content {
        padding: 0.5rem;
    }

    .card-header,
    .card-body {
        padding: 1rem;
    }

    .login-card {
        padding: 1.5rem;
    }

    /* Dashboard específico para móvil */
    .dashboard-container {
        padding: 0 0.75rem;
    }

    .dashboard-content {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .amount {
        font-size: 1.1rem;
        word-break: normal;
    }

    .card-content h3 {
        font-size: 0.8rem;
    }

    /* Transacciones específico para móvil */
    .transaction-item {
        padding: 0.75rem 0;
        gap: 0.5rem;
    }

    .transaction-amount {
        font-size: 1rem;
        min-width: 80px;
    }

    .transaction-category {
        font-size: 0.9rem;
    }

    .transaction-description {
        font-size: 0.8rem;
    }

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

/* Animaciones */
.transaction-card,
.expense-card {
    animation: fadeInUp 0.3s ease;
}

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

/* Sistema de Notificaciones Toast */
.notification-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 10000;
    display: flex;
    flex-direction: column;
    gap: 10px;
    pointer-events: none;
}

.notification {
    background: white;
    border-radius: 12px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
    padding: 16px 20px;
    min-width: 320px;
    max-width: 400px;
    display: flex;
    align-items: flex-start;
    gap: 12px;
    position: relative;
    overflow: hidden;
    transform: translateX(100%);
    opacity: 0;
    transition: all 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    pointer-events: auto;
    border-left: 4px solid var(--primary-color);
}

.notification-show {
    transform: translateX(0);
    opacity: 1;
}

.notification-hide {
    transform: translateX(100%);
    opacity: 0;
}

.notification-success {
    border-left-color: var(--success-color);
    background: linear-gradient(135deg, #f0fdf4 0%, #ffffff 100%);
}

.notification-error {
    border-left-color: var(--danger-color);
    background: linear-gradient(135deg, #fef2f2 0%, #ffffff 100%);
}

.notification-warning {
    border-left-color: var(--warning-color);
    background: linear-gradient(135deg, #fffbeb 0%, #ffffff 100%);
}

.notification-info {
    border-left-color: var(--primary-color);
    background: linear-gradient(135deg, #eff6ff 0%, #ffffff 100%);
}

.notification-icon {
    font-size: 24px;
    line-height: 1;
    flex-shrink: 0;
    margin-top: 2px;
}

.notification-content {
    flex: 1;
    min-width: 0;
}

.notification-title {
    font-weight: 600;
    font-size: 14px;
    margin-bottom: 4px;
    color: var(--dark-color);
}

.notification-message {
    font-size: 13px;
    color: var(--gray-color);
    line-height: 1.4;
    word-wrap: break-word;
}

.notification-close {
    background: none;
    border: none;
    color: var(--gray-color);
    cursor: pointer;
    padding: 4px;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    flex-shrink: 0;
}

.notification-close:hover {
    background: rgba(0, 0, 0, 0.05);
    color: var(--dark-color);
}

.notification-progress {
    position: absolute;
    bottom: 0;
    left: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: 0 0 12px 12px;
    width: 0;
}

.notification-success .notification-progress {
    background: linear-gradient(90deg, var(--success-color), #34d399);
}

.notification-error .notification-progress {
    background: linear-gradient(90deg, var(--danger-color), #f87171);
}

.notification-warning .notification-progress {
    background: linear-gradient(90deg, var(--warning-color), #fbbf24);
}

@keyframes notification-progress {
    from {
        width: 0;
    }
    to {
        width: 100%;
    }
}

/* Responsive para modales */
@media (max-width: 768px) {
    .modal-enhanced {
        padding: 0.25rem;
    }
    
    .modal-enhanced-content {
        width: calc(100vw - 0.5rem);
        max-width: none;
    }
    
    .modal-enhanced-header {
        padding: 1rem;
    }
    
    .modal-enhanced-body {
        padding: 1rem;
    }
    
    .modal-enhanced-footer {
        padding: 0.75rem 1rem;
        gap: 0.5rem;
    }
    
    .transaction-type-selector {
        margin-bottom: 1rem;
        padding: 0.75rem;
    }
    
    .type-option label {
        padding: 0.75rem 0.5rem;
    }
    
    .form-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    /* Ajustes para campo de monto en tablets */
    .amount-input-wrapper input {
        padding-left: 1.9rem;
        font-size: 1rem;
    }
    
    .currency-symbol {
        left: 0.55rem;
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .modal-enhanced {
        padding: 0.125rem;
    }
    
    .modal-enhanced-content {
        width: calc(100vw - 0.25rem);
        border-radius: 12px;
    }
    
    .modal-enhanced-header {
        padding: 0.75rem;
    }
    
    .modal-enhanced-header h3 {
        font-size: 1.25rem;
    }
    
    .modal-enhanced-body {
        padding: 0.75rem;
    }
    
    .modal-enhanced-footer {
        padding: 0.5rem 0.75rem;
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        margin: 0;
    }
    
    .modal-enhanced-footer .btn + .btn {
        margin-top: 0.5rem;
    }
}

/* Prevenir scroll horizontal */
body, html {
    overflow-x: hidden;
    box-sizing: border-box;
}

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

/* Responsive para notificaciones */
@media (max-width: 480px) {
    .notification-container {
        top: 10px;
        right: 10px;
        left: 10px;
    }
    
    .notification {
        min-width: auto;
        max-width: none;
        width: 100%;
        margin: 0;
    }
}

/* Animación de entrada suave */
@keyframes slideInRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* Efecto hover para notificaciones */
.notification:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
}