/* Factura Fácil - Estilos CSS */
:root {
    --primary-color: #3498db;
    --secondary-color: #2ecc71;
    --danger-color: #e74c3c;
    --warning-color: #f39c12;
    --dark-color: #2c3e50;
    --light-color: #ecf0f1;
    --border-color: #bdc3c7;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --app-header-height: 64px;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f7fa;
    padding: 0;
    margin: 0;
    padding-top: var(--app-header-height);
}

.container {
    max-width: 800px;
    margin: 20px auto;
    background-color: white;
    border-radius: 10px;
    box-shadow: var(--shadow);
    overflow: hidden;
}

/* Mobile App Header */
.app-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--app-header-height);
    background-color: var(--dark-color);
    color: white;
    display: flex;
    align-items: center;
    padding: 0 15px;
    z-index: 1000;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.app-header h1 {
    margin: 0;
    font-size: 1.5rem;
    flex-grow: 1;
    text-align: center;
}

.menu-btn {
    background: none;
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    padding: 5px;
    margin-right: 10px;
}

.main-container {
    padding-top: 20px;
}

/* Mobile Menu */
.mobile-menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 2000;
    display: flex;
    justify-content: center;
    align-items: center;
}

.mobile-menu {
    position: relative;
    width: 80%;
    max-width: 300px;
    max-height: 80vh;
    background-color: white;
    z-index: 2001;
    transform: scale(0.8) translateY(50px);
    opacity: 0;
    transition: transform 0.3s ease, opacity 0.3s ease;
    overflow-y: auto;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
}

.mobile-menu.show {
    transform: scale(1) translateY(0);
    opacity: 1;
}

/* Selector fix for mobile menu animation */
.mobile-menu-overlay.show .mobile-menu {
    transform: scale(1) translateY(0);
    opacity: 1;
}

/* Desktop Navigation */
.desktop-nav {
    display: none;
}

@media (min-width: 769px) {
    .menu-btn {
        display: none;
    }

    .desktop-nav {
        display: flex;
        gap: 20px;
        margin-left: auto; /* Push to the right */
    }

    .desktop-nav a {
        color: white;
        text-decoration: none;
        display: flex;
        align-items: center;
        gap: 5px;
        font-weight: 500;
        transition: opacity 0.2s;
        font-size: 0.95rem;
    }

    .desktop-nav a:hover {
        opacity: 0.8;
    }

    .app-header {
        justify-content: flex-start;
    }
    
    .app-header h1 {
        flex-grow: 0;
        text-align: left;
        margin-right: 20px;
    }
}

.menu-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 15px 10px;
    border-bottom: 1px solid var(--border-color);
}

.menu-header h3 {
    margin: 0;
    color: var(--dark-color);
}

.close-btn {
    font-size: 1.8rem;
    cursor: pointer;
    color: #777;
}

.menu-items {
    list-style: none;
    padding: 0;
    margin: 0;
}

.menu-items li {
    border-bottom: 1px solid var(--border-color);
}

.menu-items li a {
    display: flex;
    align-items: center;
    padding: 15px;
    text-decoration: none;
    color: var(--dark-color);
    font-size: 1.1rem;
    transition: background-color 0.2s;
}

.menu-items li a:hover {
    background-color: #f5f5f5;
}

.menu-items li a i {
    margin-right: 15px;
    font-size: 1.2rem;
    color: var(--primary-color);
}

.main-content {
    padding: 30px;
}

.form-section {
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
}

.form-section:last-child {
    border-bottom: none;
}

.form-section h2 {
    margin-bottom: 20px;
    color: var(--dark-color);
    font-size: 1.4rem;
    border-bottom: 2px solid var(--primary-color);
    padding-bottom: 5px;
}

.form-row {
    display: flex;
    gap: 20px;
    margin-bottom: 15px;
}

.form-row .input-group {
    flex: 1;
}

.input-group {
    margin-bottom: 15px;
}

.input-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 600;
    color: var(--dark-color);
}

.input-group input,
.input-group select,
.input-group textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    font-size: 16px;
    transition: border-color 0.3s;
}

.input-group input:focus,
.input-group select:focus,
.input-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.2);
}

.input-group textarea {
    resize: vertical;
    min-height: 80px;
}

.summary {
    background-color: #f8f9fa;
    padding: 15px;
    border-radius: 5px;
    border: 1px dashed var(--border-color);
}

.summary-row {
    display: flex;
    justify-content: space-between;
    padding: 5px 0;
    border-bottom: 1px solid var(--light-color);
}

.summary-row.total {
    font-weight: bold;
    font-size: 1.1em;
    color: var(--dark-color);
    border-top: 2px solid var(--primary-color);
    margin-top: 5px;
    padding-top: 10px;
}

.form-actions {
    display: flex;
    gap: 10px;
    margin-top: 30px;
    flex-wrap: wrap;
}

.btn {
    padding: 12px 20px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    text-align: center;
    font-weight: 600;
    transition: background-color 0.3s;
}

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

.btn-primary:hover {
    background-color: #2980b9;
}

.btn-secondary {
    background-color: #95a5a6;
    color: white;
}

.btn-secondary:hover {
    background-color: #7f8c8d;
}

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

.btn-danger:hover {
    background-color: #c0392b;
}

.error {
    background-color: #fadbd8;
    color: #c0392b;
    padding: 15px;
    border-radius: 5px;
    margin: 20px 0;
    border-left: 4px solid #e74c3c;
}

.success-message {
    text-align: center;
    padding: 30px;
}

.success-message h2 {
    color: var(--secondary-color);
    margin-bottom: 15px;
}

.summary-preview {
    background-color: #f8f9fa;
    padding: 20px;
    border-radius: 5px;
    margin: 20px 0;
    text-align: left;
    display: inline-block;
    width: 100%;
    max-width: 500px;
}

.summary-preview h3 {
    margin-bottom: 15px;
    color: var(--dark-color);
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 5px;
}

.summary-preview p {
    margin: 8px 0;
}

/* Página de listado de facturas */
.invoices-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}

.invoices-table th,
.invoices-table td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.invoices-table th {
    background-color: var(--primary-color);
    color: white;
}

.invoices-table tr:nth-child(even) {
    background-color: #f8f9fa;
}

.invoices-table tr:hover {
    background-color: #e3f2fd;
}

.action-buttons {
    display: flex;
    gap: 5px;
}

.action-btn {
    padding: 5px 10px;
    border: none;
    border-radius: 3px;
    cursor: pointer;
    text-decoration: none;
    font-size: 0.9rem;
}

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

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

/* Responsive design */
@media (max-width: 768px) {
    .form-row {
        flex-direction: column;
        gap: 0;
    }

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

    .btn {
        width: 100%;
    }

    body {
        padding: 10px;
    }

    .main-content {
        padding: 20px 15px;
    }

    header h1 {
        font-size: 1.5rem;
    }
}