/* --- Modern Sidebar & Navigation Styles --- */

:root {
    --sidebar-width: 280px;
    --sidebar-bg: rgba(255, 255, 255, 0.95);
    --z-sidebar: 10000;
}

/* Hamburger Menu Button */
.hamburger-btn {
    position: absolute;
    left: 20px;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--primary-600);
    cursor: pointer;
    z-index: 1001;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 8px;
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
}

.hamburger-btn:hover {
    background: var(--primary-50);
}

/* Sidebar Drawer Overlay */
.sidebar-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(15, 23, 42, 0.4);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: calc(var(--z-sidebar) - 1);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-base);
}

.sidebar-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* Sidebar Drawer */
.sidebar-drawer {
    position: fixed;
    top: 0;
    left: calc(-1 * var(--sidebar-width));
    width: var(--sidebar-width);
    height: 100%;
    background: var(--sidebar-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: var(--shadow-lg);
    z-index: var(--z-sidebar);
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    display: flex;
    flex-direction: column;
    padding: var(--space-6) 0;
    border-right: 1px solid rgba(255, 255, 255, 0.3);
}

.sidebar-drawer.active {
    transform: translateX(var(--sidebar-width));
}

/* Sidebar Content */
.sidebar-header {
    padding: 0 var(--space-6) var(--space-6);
    border-bottom: 1px solid var(--border-light);
    margin-bottom: var(--space-4);
}

.sidebar-user-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.sidebar-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: 2px solid var(--primary-100);
    object-fit: cover;
}

.sidebar-user-details {
    display: flex;
    flex-direction: column;
}

.sidebar-user-name {
    font-weight: 700;
    color: var(--text-primary);
    font-size: 1rem;
}

.sidebar-status {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #cbd5e1;
}

.status-dot.online {
    background: var(--color-success);
    border: 2px solid #ecfdf5;
    box-shadow: 0 0 0 2px #fff, 0 0 0 4px #10b981;
}

.status-dot.offline {
    background: var(--color-error);
}

.sidebar-menu {
    flex: 1;
    padding: 0 var(--space-3);
}

.menu-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px var(--space-4);
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
    margin-bottom: 4px;
}

.menu-item i {
    font-size: 1.1rem;
    width: 20px;
}

.menu-item:hover {
    background: var(--primary-50);
    color: var(--primary-600);
}

.menu-item.active {
    background: var(--primary-50);
    color: var(--primary-600);
}

.menu-item.logout {
    color: var(--color-error);
    margin-top: auto;
}

.menu-item.logout:hover {
    background: #fef2f2;
}

/* PWA Install Button */
.install-btn-container {
    padding: var(--space-4) var(--space-6);
    display: none;
    /* Shown via JS */
}

.install-app-btn {
    width: 100%;
    background: var(--accent-gradient);
    color: white;
    border: none;
    padding: 12px;
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    box-shadow: var(--shadow-md);
}

/* Contact Modal Styles */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(8px);
    z-index: 10002;
    display: none;
    align-items: center;
    justify-content: center;
}

.modal-overlay.active {
    display: flex;
}

.contact-modal {
    background: white;
    width: 90%;
    max-width: 400px;
    border-radius: var(--radius-lg);
    padding: var(--space-8);
    position: relative;
    animation: modalPop 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes modalPop {
    from {
        transform: scale(0.9);
        opacity: 0;
    }

    to {
        transform: scale(1);
        opacity: 1;
    }
}

.contact-header {
    text-align: center;
    margin-bottom: var(--space-6);
}

.contact-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 8px;
}

.contact-subtitle {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.contact-options {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.contact-link {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    padding: var(--space-4);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    text-decoration: none;
    transition: var(--transition-fast);
}

.contact-link:hover {
    border-color: var(--primary-500);
    background: var(--primary-50);
    transform: translateY(-2px);
}

.contact-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

.contact-icon.whatsapp {
    background: #25d366;
    color: white;
}

.contact-icon.email {
    background: var(--primary-500);
    color: white;
}

.contact-info {
    display: flex;
    flex-direction: column;
}

.contact-label {
    font-weight: 600;
    color: var(--text-primary);
}

.contact-value {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.close-contact {
    position: absolute;
    top: 15px;
    right: 15px;
    background: none;
    border: none;
    font-size: 1.25rem;
    color: var(--text-secondary);
    cursor: pointer;
}

/* Responsive Overrides */
@media (max-width: 768px) {
    .main-header {
        justify-content: flex-start;
        padding-left: 60px;
        /* Space for hamburger */
    }

    #site-title {
        font-size: 1.1rem;
    }

    .user-pill .user-name {
        display: none;
        /* Avatar only in header for mobile */
    }
}