/* ========================================
   Design Principle Page Styles
   Loaded only on DesignPrinciple.cshtml
   ======================================== */

/* ─── Breadcrumbs ─── */
.dp-breadcrumbs {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--hp-text-secondary);
    margin-bottom: 16px;
}

.dp-breadcrumbs a {
    color: var(--hp-text-secondary);
    text-decoration: none;
}

.dp-breadcrumbs a:hover {
    text-decoration: underline;
}

.dp-breadcrumbs__current {
    color: var(--hp-text);
}

/* ─── Category Badge ─── */
.dp-category-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    border-radius: var(--hp-radius-pill);
    background: #f0faf2;
    border: 1px solid #d0f0d8;
    font-size: 13px;
    font-weight: 500;
    color: var(--hp-text);
    text-decoration: none;
    transition: background 0.2s;
    flex-shrink: 0;
}

.dp-category-badge:hover {
    background: #e0f5e5;
}

.dp-category-badge__dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    flex-shrink: 0;
}

/* ─── Two Column Layout ─── */
.dp-layout {
    display: flex;
    gap: 32px;
}

.dp-main {
    flex: 1;
    min-width: 0;
}

.dp-sidebar {
    width: 320px;
    flex-shrink: 0;
}

/* ─── Description ─── */
.dp-description {
    font-size: 16px;
    line-height: 1.8;
    color: #333;
    margin-bottom: 32px;
}

/* ─── Accordion ─── */
.dp-accordion {
    border: 1px solid var(--hp-border);
    border-radius: 12px;
    margin-bottom: 12px;
    overflow: hidden;
}

.dp-accordion summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    list-style: none;
    background: #fafafa;
    transition: background 0.15s;
}

.dp-accordion summary:hover {
    background: #f5f5f5;
}

.dp-accordion summary::-webkit-details-marker {
    display: none;
}

.dp-accordion__icon {
    font-size: 12px;
    color: var(--hp-text-secondary);
    transition: transform 0.2s;
}

.dp-accordion[open] .dp-accordion__icon {
    transform: rotate(180deg);
}

.dp-accordion__content {
    padding: 16px 20px;
    font-size: 15px;
    line-height: 1.7;
    color: #444;
    border-top: 1px solid var(--hp-border);
}

/* ─── Meta ─── */
.dp-meta {
    font-size: 13px;
    color: var(--hp-text-secondary);
    margin-top: 24px;
    padding-top: 16px;
    border-top: 1px solid var(--hp-border);
}

/* ─── Related Stories Section ─── */
.dp-stories {
    margin-top: 48px;
}

.dp-stories__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
}

.dp-stories__title {
    font-family: 'FbMetali', sans-serif;
    font-size: 22px;
    font-weight: 500;
}

.dp-stories__count {
    font-size: 14px;
    color: var(--hp-text-secondary);
    background: #f5f5f5;
    padding: 4px 12px;
    border-radius: var(--hp-radius-pill);
}

/* ─── Sidebar: override side-principles for flex context ─── */
.dp-sidebar .side-principles {
    position: sticky;
    top: 113px;
    max-height: calc(100vh - 130px);
    overflow-y: auto;
}

/* ─── Principles Sidebar (story context) ─── */
.dp-sidebar .principles-sidebar {
    background: #F8F8F8;
    border-radius: 16px;
    padding: 28px 24px;
    position: sticky;
    top: 113px;
}

.dp-sidebar .principles-sidebar__title {
    font-family: 'FbMetali', sans-serif;
    font-size: 20px;
    font-weight: 500;
    margin-bottom: 8px;
}

.dp-sidebar .principles-sidebar__desc {
    font-size: 13px;
    color: var(--hp-text-secondary);
    line-height: 1.6;
    margin-bottom: 20px;
}

.dp-sidebar .principles-sidebar__list {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.dp-sidebar .principles-sidebar__item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 14px;
    border-radius: 10px;
    text-decoration: none;
    color: var(--hp-text);
    font-size: 14px;
    font-weight: 500;
    transition: background 0.15s;
}

.dp-sidebar .principles-sidebar__item:hover {
    background: rgba(0, 0, 0, 0.04);
}

.dp-sidebar .principles-sidebar__dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
}

.dp-sidebar .principles-sidebar__link {
    margin-top: 16px;
    padding-top: 12px;
    border-top: 1px solid var(--hp-border);
}

.dp-sidebar .principles-sidebar__link a {
    font-size: 13px;
    color: var(--hp-text-secondary);
    text-decoration: none;
}

.dp-sidebar .principles-sidebar__link a:hover {
    text-decoration: underline;
}

/* ─── Responsive ─── */
@media (max-width: 1024px) {
    .dp-layout {
        flex-direction: column;
    }

    .dp-sidebar {
        width: 100%;
    }

    .dp-sidebar .side-principles,
    .dp-sidebar .principles-sidebar {
        position: static;
        max-height: none;
        overflow-y: visible;
    }
}

@media (max-width: 768px) {
    .dp-category-badge {
        display: none;
    }
}