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

:root {
    --color-primary: #2563eb;
    --color-primary-dark: #1d4ed8;
    --color-secondary: #64748b;
    --color-danger: #ef4444;
    --color-danger-dark: #dc2626;
    --color-success: #22c55e;
    --color-purple: #9333ea;
    --color-red: #ef4444;
    --color-green: #22c55e;
    --color-bg: #f8fafc;
    --color-sidebar: #1e293b;
    --color-card: #ffffff;
    --color-border: #e2e8f0;
    --color-text: #1e293b;
    --color-text-light: #64748b;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
}

/* Login Page */
.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.login-container {
    width: 100%;
    max-width: 420px;
    padding: 20px;
}

.login-card {
    background: var(--color-card);
    border-radius: 16px;
    padding: 40px;
    box-shadow: var(--shadow-lg);
}

.login-header {
    text-align: center;
    margin-bottom: 32px;
}

.login-header h1 {
    font-size: 28px;
    color: var(--color-text);
    margin-bottom: 8px;
}

.login-header p {
    color: var(--color-text-light);
    font-size: 14px;
}

.login-form .form-group {
    margin-bottom: 20px;
}

.login-form label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--color-text);
    font-size: 14px;
}

.login-form input[type="text"],
.login-form input[type="password"] {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--color-border);
    border-radius: 8px;
    font-size: 14px;
    transition: all 0.2s;
}

.login-form input[type="text"]:focus,
.login-form input[type="password"]:focus {
    outline: none;
    border-color: var(--color-primary);
}

.checkbox-group {
    display: flex;
    align-items: center;
    gap: 8px;
}

.checkbox-group input[type="checkbox"] {
    width: 16px;
    height: 16px;
    cursor: pointer;
}

.checkbox-group label {
    margin: 0;
    font-weight: 400;
    cursor: pointer;
}

.login-footer {
    text-align: center;
    margin-top: 20px;
}

.login-footer a {
    color: var(--color-primary);
    text-decoration: none;
    font-size: 14px;
}

.login-footer a:hover {
    text-decoration: underline;
}

/* Dashboard Layout */
.dashboard {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: 260px;
    background-color: var(--color-sidebar);
    color: white;
    position: fixed;
    height: 100vh;
    overflow-y: auto;
}

.sidebar-header {
    padding: 24px 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar-header h2 {
    font-size: 20px;
    font-weight: 600;
}

.sidebar-nav {
    padding: 20px 0;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 20px;
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: all 0.2s;
}

.nav-item:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: white;
}

.nav-item.active {
    background-color: var(--color-primary);
    color: white;
    border-left: 4px solid white;
    padding-left: 16px;
}

.nav-icon {
    font-size: 20px;
}

.nav-logout {
    margin-top: auto;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    margin-top: 20px;
    padding-top: 20px;
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: 260px;
    padding: 32px;
}

.content-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 32px;
}

.content-header h1 {
    font-size: 32px;
    margin-bottom: 4px;
}

.content-header p {
    color: var(--color-text-light);
    font-size: 14px;
}

/* Platform Legend */
.platform-legend {
    display: flex;
    gap: 24px;
    margin-bottom: 24px;
    padding: 16px;
    background: var(--color-card);
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
}

/* Platform Badges */
.platform-badge {
    display: inline-block;
    width: 24px;
    height: 24px;
    border-radius: 6px;
    text-align: center;
    line-height: 24px;
    font-weight: bold;
    font-size: 14px;
    color: white;
}

.platform-badge.platform-purple {
    background-color: var(--color-purple);
}

.platform-badge.platform-red {
    background-color: var(--color-red);
}

.platform-badge.platform-green {
    background-color: var(--color-green);
}

.platform-badge.inactive {
    opacity: 0.3;
}

.platform-badge.active {
    opacity: 1;
}

/* Machinery Grid */
.machinery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(400px, 1fr));
    gap: 24px;
}

.machinery-card {
    background: var(--color-card);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: transform 0.2s, box-shadow 0.2s;
}

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

.machinery-image {
    width: 100%;
    height: 220px;
    overflow: hidden;
}

.machinery-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.machinery-content {
    padding: 20px;
}

.machinery-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 16px;
}

.machinery-header h3 {
    font-size: 18px;
    color: var(--color-text);
    margin: 0;
}

.machinery-price {
    font-size: 20px;
    font-weight: 700;
    color: var(--color-primary);
}

.machinery-details {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-bottom: 16px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--color-border);
}

.detail-item {
    display: flex;
    gap: 8px;
    font-size: 14px;
}

.detail-label {
    color: var(--color-text-light);
    font-weight: 500;
}

.detail-value {
    color: var(--color-text);
}

.platform-status {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
}

.machinery-actions {
    display: flex;
    gap: 8px;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 10px 20px;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.2s;
    text-align: center;
}

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

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

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

.btn-secondary:hover {
    background-color: #475569;
}

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

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

.btn-block {
    width: 100%;
}

.btn-small {
    padding: 6px 12px;
    font-size: 13px;
}

/* Forms */
.form-container {
    max-width: 900px;
}

.machinery-form {
    background: var(--color-card);
    border-radius: 12px;
    padding: 32px;
    box-shadow: var(--shadow-md);
}

.form-section {
    margin-bottom: 32px;
}

.form-section:last-child {
    margin-bottom: 0;
}

.form-section-title {
    font-size: 20px;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--color-border);
}

.form-section-description {
    color: var(--color-text-light);
    font-size: 14px;
    margin-bottom: 16px;
}

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

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--color-text);
    font-size: 14px;
}

.form-group input[type="text"],
.form-group input[type="number"],
.form-group input[type="file"],
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px 14px;
    border: 2px solid var(--color-border);
    border-radius: 8px;
    font-size: 14px;
    font-family: inherit;
    transition: all 0.2s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
}

.form-group textarea {
    resize: vertical;
}

.form-help {
    display: block;
    margin-top: 6px;
    font-size: 12px;
    color: var(--color-text-light);
}

/* Platform Checkboxes */
.platform-checkboxes {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.platform-checkbox-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px;
    background: var(--color-bg);
    border-radius: 8px;
    border: 2px solid var(--color-border);
    transition: all 0.2s;
}

.platform-checkbox-item:hover {
    border-color: var(--color-primary);
}

.platform-checkbox-item input[type="checkbox"] {
    width: 20px;
    height: 20px;
    cursor: pointer;
}

.platform-checkbox-item label {
    display: flex;
    align-items: center;
    gap: 12px;
    margin: 0;
    cursor: pointer;
    flex: 1;
}

/* Current Images */
.current-images {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 16px;
}

.current-image-item {
    position: relative;
}

.current-image-item img {
    width: 150px;
    height: 150px;
    object-fit: cover;
    border-radius: 8px;
    border: 2px solid var(--color-border);
}

.image-actions {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-top: 8px;
    font-size: 13px;
}

.image-actions input[type="checkbox"] {
    width: 16px;
    height: 16px;
}

/* Form Actions */
.form-actions {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid var(--color-border);
}

/* ============================
   FILTROS
   ============================ */
.filters-section {
    background: white;
    padding: 1.5rem;
    border-radius: 8px;
    margin-bottom: 2rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.filters-form {
    display: flex;
    gap: 1rem;
    align-items: flex-end;
    flex-wrap: wrap;
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    min-width: 200px;
}

.filter-group label {
    font-size: 0.875rem;
    font-weight: 500;
    color: #4b5563;
}

.filter-group select {
    padding: 0.5rem;
    border: 1px solid #d1d5db;
    border-radius: 6px;
    font-size: 0.875rem;
    background: white;
    cursor: pointer;
}

.filter-group select:focus {
    outline: none;
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

/* ============================
   ESTADOS VACÍOS Y ERROR
   ============================ */
.empty-state,
.error-state {
    text-align: center;
    padding: 4rem 2rem;
    background: white;
    border-radius: 8px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.empty-state p,
.error-state p {
    color: #6b7280;
    font-size: 1.125rem;
    margin-bottom: 1.5rem;
}

.error-state p {
    color: #dc2626;
}

.empty-state .btn {
    margin-top: 1rem;
}

/* ============================
   RESPONSIVE FILTERS
   ============================ */

@media (max-width: 768px) {

    .filters-form {
        flex-direction: column;
        align-items: stretch;
    }
    
    .filter-group {
        min-width: 100%;
    }
    
    .filters-form .btn {
        width: 100%;
    }
    .sidebar {
        width: 220px;
    }

    .main-content {
        margin-left: 220px;
        padding: 20px;
    }

    .content-header {
        flex-direction: column;
        gap: 16px;
    }

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

    .form-row {
        grid-template-columns: 1fr;
    }

    .platform-legend {
        flex-direction: column;
        gap: 12px;
    }
}

@media (max-width: 640px) {
    .sidebar {
        display: none;
    }

    .main-content {
        margin-left: 0;
        padding: 16px;
    }

    .login-card {
        padding: 24px;
    }

    .machinery-form {
        padding: 20px;
    }

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

    .form-actions .btn {
        width: 100%;
    }
  
  .table-container {
    background: #1a1d2e;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0,0,0,0.4);
    margin-top: 20px;
}

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

.data-table thead tr {
    background: #14172a;
}

.data-table th {
    padding: 14px 20px;
    text-align: left;
    font-size: 12px;
    font-weight: 600;
    color: #888;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.data-table td {
    padding: 14px 20px;
    color: #fff;
    font-size: 14px;
    border-bottom: 1px solid #252839;
}

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

.data-table tbody tr:hover td {
    background: #252839;
}
}