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

:root {
    --primary: #2c6ecb;
    --primary-dark: #1f5199;
    --primary-light: #e3f2fd;
    --success: #008060;
    --success-light: #e3fcef;
    --error: #d82c0d;
    --error-light: #fef3f2;
    --warning: #b98900;
    --warning-light: #fffbe6;
    --text-primary: #202223;
    --text-secondary: #6d7175;
    --text-muted: #8c9196;
    --bg-primary: #fff;
    --bg-secondary: #f6f6f7;
    --bg-tertiary: #f1f2f4;
    --border-color: #e1e3e5;
    --border-dark: #c9cccf;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background: var(--bg-tertiary);
    color: var(--text-primary);
    font-size: 14px;
    line-height: 1.5;
    min-height: 100vh;
}

/* Scrollbar personalizado */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: #d1d5db;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #9ca3af;
}

/* Layout principal */
.installer {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: 260px;
    background: var(--bg-primary);
    border-right: 1px solid var(--border-color);
    padding: 24px 16px;
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    overflow-y: auto;
}

.logo {
    margin-bottom: 32px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-color);
}

.logo h1 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
}

.logo .version {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 4px;
    display: block;
}

/* Steps navigation */
.steps-nav {
    flex: 1;
}

.step-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 0;
    position: relative;
}

.step-item:not(:last-child)::after {
    content: '';
    position: absolute;
    left: 15px;
    top: 44px;
    width: 2px;
    height: calc(100% - 20px);
    background: var(--border-color);
}

.step-item.completed:not(:last-child)::after {
    background: var(--success);
}

.step-number {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 13px;
    background: var(--bg-secondary);
    color: var(--text-muted);
    position: relative;
    z-index: 1;
    flex-shrink: 0;
    border: 2px solid var(--border-color);
}

.step-item.active .step-number {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

.step-item.completed .step-number {
    background: var(--success);
    color: white;
    border-color: var(--success);
}

.step-number .check {
    font-size: 14px;
}

.step-name {
    font-size: 13px;
    color: var(--text-muted);
    font-weight: 500;
}

.step-item.active .step-name {
    color: var(--text-primary);
    font-weight: 600;
}

.step-item.completed .step-name {
    color: var(--text-secondary);
}

.sidebar-footer {
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
    margin-top: auto;
}

.sidebar-footer p {
    font-size: 12px;
    color: var(--text-muted);
}

/* Contenido principal */
.content {
    flex: 1;
    margin-left: 260px;
    padding: 32px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.content-inner {
    width: 100%;
    max-width: 560px;
}

/* Cards */
.card {
    background: var(--bg-primary);
    border-radius: 8px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
    border: 1px solid var(--border-color);
    padding: 32px;
    margin-bottom: 16px;
}

.card-header {
    margin-bottom: 24px;
}

.card-header h2 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

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

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

.form-group label {
    display: block;
    font-weight: 500;
    margin-bottom: 6px;
    color: var(--text-primary);
    font-size: 13px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border-dark);
    border-radius: 6px;
    font-size: 14px;
    transition: all 0.15s ease;
    background: var(--bg-primary);
    color: var(--text-primary);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(44, 110, 203, 0.1);
}

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

.form-group .hint {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 6px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

/* Botones */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 16px;
    border: none;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s ease;
    text-decoration: none;
}

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

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

.btn-secondary {
    background: var(--bg-primary);
    color: var(--text-primary);
    border: 1px solid var(--border-dark);
}

.btn-secondary:hover {
    background: var(--bg-secondary);
}

.btn-success {
    background: var(--success);
    color: white;
    border: 1px solid var(--success);
}

.btn-success:hover {
    background: #006e52;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.form-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    /*margin-top: 24px;*/
    padding-top: 24px;
    border-top: 1px solid var(--border-color);
}

/* Alertas */
.alert {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 12px 16px;
    border-radius: 6px;
    margin-bottom: 16px;
    font-size: 13px;
}

.alert-icon {
    font-size: 16px;
    flex-shrink: 0;
}

.alert-success {
    background: var(--success-light);
    color: #004d3d;
    border: 1px solid #a7f3d0;
}

.alert-error {
    background: var(--error-light);
    color: #991b1b;
    border: 1px solid #fecaca;
}

.alert-warning {
    background: var(--warning-light);
    color: #92400e;
    border: 1px solid #fde68a;
}

.alert-info {
    background: var(--primary-light);
    color: #1e40af;
    border: 1px solid #bfdbfe;
}

/* Tabla de requisitos */
.requirements-table {
    width: 100%;
    border-collapse: collapse;
}

.requirements-table tr {
    border-bottom: 1px solid var(--border-color);
}

.requirements-table tr:last-child {
    border-bottom: none;
}

.requirements-table td {
    padding: 12px 0;
    font-size: 13px;
}

.requirements-table td:first-child {
    color: var(--text-secondary);
}

.requirements-table td:last-child {
    text-align: right;
}

.status-ok {
    color: var(--success);
    font-weight: 500;
}

.status-error {
    color: var(--error);
    font-weight: 500;
}

/* Resumen final */
.summary-item {
    display: flex;
    justify-content: space-between;
    padding: 10px 0;
    border-bottom: 1px solid var(--border-color);
}

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

.summary-label {
    color: var(--text-secondary);
    font-size: 13px;
}

.summary-value {
    color: var(--text-primary);
    font-weight: 500;
    font-size: 13px;
}

/* Animación de carga */
.loading {
    display: inline-block;
    width: 18px;
    height: 18px;
    border: 2px solid var(--border-color);
    border-radius: 50%;
    border-top-color: var(--primary);
    animation: spin 0.8s linear infinite;
}

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

/* Password strength */
.password-strength {
    margin-top: 8px;
}

.password-strength ul {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    font-size: 12px;
}

.password-strength li {
    color: var(--text-muted);
    padding: 2px 8px;
    background: var(--bg-secondary);
    border-radius: 4px;
}

.password-strength li.valid {
    color: var(--success);
    background: var(--success-light);
}

.password-strength li.valid::before {
    content: '✓ ';
}

/* Finalización */
.finish-icon {
    width: 64px;
    height: 64px;
    background: var(--success-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    margin: 0 auto 24px;
}

.finish-title {
    text-align: center;
    margin-bottom: 24px;
}

.warning-box {
    background: var(--warning-light);
    border: 1px solid #fde68a;
    border-radius: 6px;
    padding: 16px;
    margin-top: 24px;
}

.warning-box h4 {
    color: #92400e;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.warning-box p {
    color: #92400e;
    font-size: 13px;
}

.warning-box code {
    background: rgba(0,0,0,0.1);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: monospace;
}

/* Responsive */
@media (max-width: 900px) {
    .sidebar {
        width: 100%;
        height: auto;
        position: relative;
        padding: 16px;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
    }
    
    .logo {
        margin-bottom: 16px;
        padding-bottom: 16px;
    }
    
    .steps-nav {
        display: flex;
        overflow-x: auto;
        gap: 8px;
        padding-bottom: 8px;
    }
    
    .step-item {
        flex-direction: column;
        padding: 8px 12px;
        min-width: 70px;
        text-align: center;
    }
    
    .step-item:not(:last-child)::after {
        display: none;
    }
    
    .step-name {
        font-size: 11px;
    }
    
    .content {
        margin-left: 0;
        padding: 16px;
    }
    
    .installer {
        flex-direction: column;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .card {
        padding: 20px;
    }
    
    .sidebar-footer {
        display: none;
    }
}

@media (max-width: 480px) {
    .card {
        padding: 16px;
    }
    
    .card-header h2 {
        font-size: 16px;
    }
    
    .btn {
        padding: 10px 14px;
        font-size: 13px;
    }
    
    .form-actions {
        flex-direction: column;
        gap: 12px;
    }
    
    .form-actions .btn {
        width: 100%;
    }
    
    .form-actions .btn-secondary {
        order: 2;
    }
    
    .form-actions .btn-primary {
        order: 1;
    }
}