/**
 * Modern Subsection Menu Styles
 * Sticky sidebar navigation for service pages
 */

/* Container */
#subsection-menu {
    position: sticky;
    top: 100px;
    height: fit-content;
    z-index: 50;
}

.subsection-wrapper {
    background: var(--bg-white, #ffffff);
    border: 1px solid var(--border-color, #e5e7eb);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    transition: all 0.3s ease;
}

/* Toggle Button - Mobile */
.subsection-toggle {
    display: none;
    width: 100%;
    padding: 16px 20px;
    background: var(--primary-color, #0E2B48);
    color: #ffffff;
    border: none;
    cursor: pointer;
    font-family: var(--font-heading, 'Montserrat', sans-serif);
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    align-items: center;
    gap: 10px;
    transition: background 0.3s ease;
}

.subsection-toggle:hover {
    background: var(--primary-dark, #0a1f33);
}

.subsection-toggle .toggle-icon {
    margin-left: auto;
    transition: transform 0.3s ease;
}

.subsection-wrapper.collapsed .subsection-toggle .toggle-icon {
    transform: rotate(-90deg);
}

/* Navigation */
.subsection-nav {
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.subsection-header {
    padding: 20px 20px 12px;
    border-bottom: 1px solid var(--border-color, #e5e7eb);
}

.subsection-header h4 {
    margin: 0;
    font-size: 13px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--primary-color, #0E2B48);
}

/* List */
.subsection-list {
    list-style: none;
    padding: 12px 0;
    margin: 0;
}

/* Items */
.subsection-item {
    margin: 0;
}

.subsection-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 20px;
    color: var(--text-muted, #666);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.2s ease;
    border-left: 3px solid transparent;
}

.subsection-link i:first-child {
    width: 20px;
    text-align: center;
    color: var(--text-muted, #999);
    transition: color 0.2s ease;
}

.subsection-link .expand-icon {
    margin-left: auto;
    font-size: 10px;
    transition: transform 0.3s ease;
}

.subsection-link:hover {
    background: var(--bg-light, #f8f9fa);
    color: var(--primary-color, #0E2B48);
    border-left-color: var(--accent-coral, #FF1654);
}

.subsection-link:hover i:first-child {
    color: var(--accent-coral, #FF1654);
}

/* Active State */
.subsection-item.active > .subsection-link {
    background: linear-gradient(135deg, rgba(255, 22, 84, 0.08) 0%, rgba(255, 22, 84, 0.04) 100%);
    color: var(--accent-coral, #FF1654);
    border-left-color: var(--accent-coral, #FF1654);
    font-weight: 600;
}

.subsection-item.active > .subsection-link i:first-child {
    color: var(--accent-coral, #FF1654);
}

/* Parent of Active */
.subsection-item.parent-active > .subsection-link {
    color: var(--primary-color, #0E2B48);
    font-weight: 600;
}

/* Children */
.subsection-children {
    list-style: none;
    padding: 0;
    margin: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    background: var(--bg-light, #f8f9fa);
}

.subsection-children.expanded,
.subsection-item.parent-active > .subsection-children {
    max-height: 500px;
}

.subsection-item.expanded > .subsection-link .expand-icon {
    transform: rotate(90deg);
}

.subsection-children .subsection-link {
    padding-left: 52px;
    font-size: 13px;
}

.subsection-children .subsection-children .subsection-link {
    padding-left: 72px;
    font-size: 12px;
}

/* Hover effects for children */
.subsection-children .subsection-link:hover {
    background: rgba(14, 43, 72, 0.05);
}

/* Badge for counts (optional) */
.subsection-badge {
    margin-left: auto;
    background: var(--accent-coral, #FF1654);
    color: #ffffff;
    font-size: 10px;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 10px;
}

/* Mobile Responsive */
@media (max-width: 1023px) {
    #subsection-menu {
        position: relative;
        top: 0;
        margin-bottom: 24px;
    }

    .subsection-toggle {
        display: flex;
    }

    .subsection-wrapper.collapsed .subsection-nav {
        max-height: 0;
    }

    .subsection-wrapper:not(.collapsed) .subsection-nav {
        max-height: 1000px;
    }
}

/* Desktop Hover Animations */
@media (min-width: 1024px) {
    .subsection-wrapper {
        min-width: 260px;
    }

    .subsection-item.has-children > .subsection-link {
        cursor: pointer;
    }

    .subsection-item.has-children:hover > .subsection-children {
        max-height: 500px;
    }

    .subsection-item.has-children:hover > .subsection-link .expand-icon {
        transform: rotate(90deg);
    }
}

/* Dark Mode */
body.theme-dark .subsection-wrapper {
    background: #21262d;
    border-color: #30363d;
}

body.theme-dark .subsection-header {
    border-bottom-color: #30363d;
}

body.theme-dark .subsection-header h4 {
    color: #f0f6fc;
}

body.theme-dark .subsection-link {
    color: #a8b3c2;
}

body.theme-dark .subsection-link:hover {
    background: #30363d;
    color: #f0f6fc;
}

body.theme-dark .subsection-item.active > .subsection-link {
    background: linear-gradient(135deg, rgba(255, 71, 87, 0.15) 0%, rgba(255, 71, 87, 0.08) 100%);
    color: #ff4757;
}

body.theme-dark .subsection-children {
    background: #161b22;
}

body.theme-dark .subsection-children .subsection-link:hover {
    background: #21262d;
}

/* Animation for scroll spy */
.subsection-item.active > .subsection-link::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 0;
    background: var(--accent-coral, #FF1654);
    animation: slideIn 0.3s ease forwards;
}

@keyframes slideIn {
    to {
        height: 100%;
    }
}