/**
 * Side Menu Component Styles
 * Mobile-First UI Redesign - Phase 1
 */

/* ========== Side Menu Container ========== */
.side-menu {
    position: fixed;
    top: 0;
    left: 0;
    width: var(--menu-width-desktop);
    height: 100vh;
    background: var(--menu-bg);
    border-right: 1px solid var(--menu-border);
    box-shadow: var(--menu-shadow);
    z-index: var(--z-index-menu);
    display: flex;
    flex-direction: column;
    transform: translateX(0);
    transition: transform var(--transition-normal) var(--transition-easing);
    overflow-y: auto;
}

/* Menu hidden state (will be controlled by JS) */
.side-menu.hidden {
    transform: translateX(-100%);
}

/* ========== Menu Header ========== */
.menu-header {
    padding: 24px 20px;
    text-align: center;
    background: linear-gradient(135deg, var(--menu-active-gradient-start), var(--menu-active-gradient-end));
    color: white;
}

.menu-logo {
    font-size: 48px;
    margin-bottom: 8px;
}

.menu-title {
    font-size: 18px;
    font-weight: var(--font-weight-bold);
    margin-bottom: 4px;
}

.menu-subtitle {
    font-size: 12px;
    opacity: 0.9;
}

/* ========== Menu Section ========== */
.menu-section {
    padding: 12px 0;
}

/* ========== Menu Item ========== */
.menu-item {
    display: flex;
    align-items: center;
    padding: var(--menu-padding-vertical) var(--menu-padding-horizontal);
    height: var(--menu-item-height);
    color: var(--menu-item-text);
    text-decoration: none;
    transition: all var(--transition-fast) var(--transition-easing);
    cursor: pointer;
    position: relative;
}

.menu-item:hover {
    background: var(--menu-item-bg-hover);
    color: var(--menu-item-text-hover);
}

.menu-item.active {
    background: linear-gradient(135deg, var(--menu-active-gradient-start), var(--menu-active-gradient-end));
    color: var(--menu-item-text-active);
    font-weight: var(--font-weight-semibold);
}

.menu-item.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: var(--color-white);
}

/* ========== Menu Icon ========== */
.menu-icon {
    font-size: var(--menu-icon-size);
    width: var(--menu-icon-size);
    height: var(--menu-icon-size);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-right: 16px;
    flex-shrink: 0;
}

.menu-item:hover .menu-icon {
    transform: scale(1.1);
}

/* ========== Menu Label ========== */
.menu-label {
    font-size: var(--font-size-menu-label);
    font-weight: var(--font-weight-medium);
    flex: 1;
}

/* ========== Menu Badge ========== */
.menu-badge {
    background: var(--color-error);
    color: white;
    font-size: 11px;
    font-weight: var(--font-weight-bold);
    padding: 2px 8px;
    border-radius: 12px;
    margin-left: auto;
}

/* ========== Menu Divider ========== */
.menu-divider {
    height: 1px;
    background: var(--menu-border);
    margin: 10px 0;
}

/* ========== Menu Footer ========== */
.menu-footer {
    margin-top: auto;
    padding: 12px 0;
}

.menu-user {
    display: flex;
    align-items: center;
    padding: 12px var(--menu-padding-horizontal);
    color: var(--menu-item-text);
}

.menu-logout {
    display: flex;
    align-items: center;
    width: 100%;
    padding: var(--menu-padding-vertical) var(--menu-padding-horizontal);
    background: none;
    border: none;
    color: var(--color-error);
    cursor: pointer;
    transition: all var(--transition-fast) var(--transition-easing);
}

.menu-logout:hover {
    background: var(--menu-item-bg-hover);
}

.menu-logout .menu-icon {
    margin-right: 16px;
}

/* Change password button styling */
.menu-logout:first-of-type {
    color: var(--color-info);
}

.menu-logout:first-of-type:hover {
    color: var(--color-dark-gray);
}

/* ========== Admin Only Items ========== */
.menu-section.admin-only {
    /* Will be shown/hidden via JS based on user role */
}

/* ========== Menu Overlay (for mobile) ========== */
.menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--overlay-bg);
    z-index: var(--z-index-overlay);
    opacity: 0;
    visibility: hidden;
    transition: var(--overlay-transition);
}

.menu-overlay.visible {
    opacity: 1;
    visibility: visible;
}

/* ========== Content Area Adjustment ========== */
body.menu-visible .container {
    margin-left: var(--menu-width-desktop);
    transition: margin-left var(--transition-normal) var(--transition-easing);
}

/* ========== Scrollbar Styling ========== */
.side-menu::-webkit-scrollbar {
    width: 6px;
}

.side-menu::-webkit-scrollbar-track {
    background: transparent;
}

.side-menu::-webkit-scrollbar-thumb {
    background: var(--menu-border);
    border-radius: 3px;
}

.side-menu::-webkit-scrollbar-thumb:hover {
    background: var(--color-medium-gray);
}

/* ========== Animation States ========== */
@keyframes slideIn {
    from {
        transform: translateX(-100%);
    }
    to {
        transform: translateX(0);
    }
}

@keyframes slideOut {
    from {
        transform: translateX(0);
    }
    to {
        transform: translateX(-100%);
    }
}

.side-menu.animating-in {
    animation: slideIn var(--transition-normal) var(--transition-easing);
}

.side-menu.animating-out {
    animation: slideOut var(--transition-normal) var(--transition-easing);
}