/* ============================================
   MADESA - Admin / Panel Privado
   ============================================ */

/* Admin layout tiene sidebar + content */
.admin-layout {
    display: flex;
    min-height: 100vh;
    padding-top: var(--header-height);
}

.admin-sidebar {
    width: var(--sidebar-width);
    background: var(--bg-dark);
    border-right: 1px solid var(--color-primary-border);
    position: fixed;
    top: var(--header-height);
    left: 0;
    bottom: 0;
    overflow-y: auto;
    z-index: var(--z-sticky);
    padding: var(--space-6) 0;
}

.admin-content {
    position: fixed;
    top: var(--header-height);
    left: var(--sidebar-width);
    right: 0;
    bottom: 0;
    padding: var(--space-8) var(--space-8);
    overflow-y: auto;
    overflow-x: hidden;
}

/* Scrollbar personalizada para el área de contenido admin */
.admin-content::-webkit-scrollbar {
    width: 6px;
}

.admin-content::-webkit-scrollbar-track {
    background: var(--bg-dark);
}

.admin-content::-webkit-scrollbar-thumb {
    background: var(--color-primary-border);
    border-radius: var(--radius-full);
}

.admin-content::-webkit-scrollbar-thumb:hover {
    background: var(--color-primary);
}

/* Sidebar Nav */
.sidebar-section {
    padding: 0 var(--space-4);
    margin-bottom: var(--space-6);
}

.sidebar-section-label {
    font-family: var(--font-display);
    font-size: 0.65rem;
    letter-spacing: 2.5px;
    text-transform: uppercase;
    color: var(--text-muted);
    padding: 0 var(--space-4);
    margin-bottom: var(--space-2);
}

.sidebar-link {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: 0.75rem var(--space-4);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-family: var(--font-display);
    font-size: var(--size-sm);
    letter-spacing: 1px;
    text-transform: uppercase;
    cursor: pointer;
    transition: var(--transition-fast);
    min-height: 44px;
}

.sidebar-link:hover {
    background: var(--bg-card);
    color: var(--text-primary);
}

.sidebar-link.active {
    background: var(--color-primary-alpha);
    color: var(--color-primary);
    border-left: 2px solid var(--color-primary);
    padding-left: calc(var(--space-4) - 2px);
}

.sidebar-link-icon {
    font-size: 1.1rem;
    width: 20px;
    text-align: center;
    flex-shrink: 0;
}

/* Admin section - oculto por defecto, controlado por JavaScript */
.admin-section {
    display: none;
    margin: 0;
    padding: 0;
    animation: fadeIn 0.3s ease-in-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.admin-section[style*="display: block"] {
    display: block;
}

/* Admin page header */
.admin-page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-8);
    gap: var(--space-4);
    flex-wrap: wrap;
}

.admin-page-title {
    font-family: var(--font-display);
    font-size: var(--size-4xl);
    font-weight: 700;
    color: var(--color-primary);
    letter-spacing: 2px;
    text-transform: uppercase;
}

/* Dashboard Stats */
.dashboard-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-6);
    margin-bottom: var(--space-10);
}

/* Invoice form */
.invoice-form-card {
    background: var(--bg-card);
    border: var(--border-base);
    border-radius: var(--radius-lg);
    padding: var(--space-8);
    margin-bottom: var(--space-8);
}

.invoice-form-title {
    font-family: var(--font-display);
    font-size: var(--size-lg);
    color: var(--color-primary);
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: var(--space-6);
}

/* Login page */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-8);
    background: linear-gradient(160deg, var(--bg-main), var(--bg-dark));
    position: relative;
}

.login-page::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(ellipse at 20% 50%, rgba(255, 107, 53, 0.05) 0%, transparent 60%),
        radial-gradient(ellipse at 80% 20%, rgba(255, 140, 66, 0.04) 0%, transparent 50%);
    pointer-events: none;
}

.login-card {
    background: var(--bg-secondary);
    border: var(--border-base);
    border-radius: var(--radius-xl);
    padding: var(--space-12);
    width: 100%;
    max-width: 420px;
    box-shadow: var(--shadow-lg);
    position: relative;
    z-index: 1;
}

.login-logo {
    text-align: center;
    margin-bottom: var(--space-8);
}

.login-logo img {
    height: 56px;
    margin: 0 auto;
}

.login-title {
    font-family: var(--font-display);
    font-size: var(--size-2xl);
    text-align: center;
    margin-bottom: var(--space-2);
    color: var(--text-primary);
    letter-spacing: 2px;
    text-transform: uppercase;
}

.login-subtitle {
    text-align: center;
    color: var(--text-tertiary);
    font-size: var(--size-sm);
    margin-bottom: var(--space-8);
}

.login-divider {
    height: 1px;
    background: var(--color-primary-border);
    margin: var(--space-8) 0;
}

@media (max-width: 900px) {
    .admin-sidebar {
        transform: translateX(-100%);
        transition: transform 0.3s ease;
        z-index: var(--z-header);
    }
    .admin-sidebar.open {
        transform: translateX(0);
    }
    .admin-content {
        margin-left: 0;
        left: 0;
    }
}