/* =========================================
   INSIGHTS PAGE — insights.css
   Builds on common.css tokens.
   ========================================= */

/* ── Hero Strip ── */
.insights-hero-strip {
    position: relative;
    width: 100%;
    height: 340px;
    overflow: hidden;
    background-color: var(--color-bg-dark);
    margin-top: var(--nav-height);
}

.insights-hero-strip__img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    opacity: 0.45;
}

/* Placeholder gradient used until a real image is set */
.insights-hero-strip__placeholder {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, #0d1b2a 0%, #1a2f4a 40%, #0f1e30 70%, #0a1520 100%);
    opacity: 1;
}

.insights-hero-strip::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom, rgba(0,0,0,0.15) 0%, rgba(0,0,0,0.55) 100%);
    pointer-events: none;
}

.insights-hero-strip__content {
    position: relative;
    z-index: 2;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 0 5% 48px;
    max-width: var(--max-width);
    margin: 0 auto;
}

.insights-hero-strip__label {
    display: inline-block;
    color: var(--brand-blue);
    font-weight: var(--weight-semibold);
    font-size: var(--text-xs);
    letter-spacing: 1.5px;
    text-transform: uppercase;
    margin-bottom: 12px;
    opacity: .9;
}

.insights-hero-strip__title {
    font-family: var(--font-heading);
    font-size: 2.6rem;
    font-weight: var(--weight-bold);
    color: var(--color-inverse);
    line-height: var(--leading-tight);
    letter-spacing: -0.5px;
    margin-bottom: 12px;
}

.insights-hero-strip__sub {
    font-size: var(--text-base);
    color: rgba(255, 255, 255, 0.65);
    max-width: 480px;
    line-height: var(--leading-normal);
    margin-bottom: 0;
}

/* ── Featured article ── */
.featured-wrap {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 40px 5% 0;
}

.featured-card {
    display: block;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    cursor: pointer;
    transition: box-shadow var(--transition-base), transform var(--transition-base);
}

.featured-card > a {
    display: grid !important;
    grid-template-columns: 1fr 1fr;
    min-height: 360px;
}

.featured-card:hover {
    box-shadow: var(--shadow-xl);
    transform: translateY(-3px);
}

.feat-visual {
    position: relative;
    overflow: hidden;
    background: var(--color-bg-dark);
}

.feat-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    transition: transform var(--transition-slow);
}

.featured-card:hover .feat-img {
    transform: scale(1.04);
}

.feat-img-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #0d1b2a 0%, #1a2f4a 50%, #0f1e30 100%);
}

.feat-content {
    padding: 48px 44px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: var(--space-4);
    background: var(--color-bg);
}

.feat-meta {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.feat-tag {
    font-size: var(--text-xs);
    font-weight: var(--weight-bold);
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.feat-date {
    font-size: var(--text-xs);
    color: var(--color-muted);
}

.feat-title {
    font-family: var(--font-heading);
    font-size: var(--text-3xl);
    font-weight: var(--weight-bold);
    color: var(--color-heading);
    line-height: var(--leading-tight);
    margin-bottom: 0;
}

.feat-excerpt {
    font-size: var(--text-md);
    color: var(--color-body-secondary);
    line-height: var(--leading-normal);
    margin: 0;
}

.feat-cta {
    font-size: var(--text-base) !important;
    font-weight: var(--weight-semibold);
    margin-top: var(--space-2);
}

@media (max-width: 768px) {
    .featured-card > a {
        grid-template-columns: 1fr;
    }
    .feat-visual {
        height: 220px;
    }
    .feat-content {
        padding: 32px 28px;
    }
    .feat-title {
        font-size: var(--text-2xl);
    }
}

/* ── Filter bar ── */
.filter-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 32px 5%;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    border-bottom: 1px solid var(--color-border);
}

.cat-btn {
    padding: 8px 18px;
    border: 1.5px solid var(--color-border-strong);
    border-radius: var(--radius-full);
    background: var(--color-bg);
    font-size: var(--text-sm);
    font-weight: var(--weight-medium);
    cursor: pointer;
    color: var(--color-body);
    text-decoration: none;
    transition: all var(--transition-base);
    font-family: var(--font-body);
}

.cat-btn:hover {
    border-color: var(--color-muted);
    color: var(--color-heading);
}

.cat-btn.active[data-type=""]         { background: var(--brand-primary);  border-color: var(--brand-primary);  color: var(--color-inverse); }
.cat-btn.active[data-type="article"]  { background: var(--brand-blue);      border-color: var(--brand-blue);      color: var(--color-inverse); }
.cat-btn.active[data-type="case"]     { background: var(--brand-green);     border-color: var(--brand-green);     color: var(--color-inverse); }
.cat-btn.active[data-type="guide"]    { background: var(--brand-yellow);    border-color: var(--brand-yellow);    color: var(--brand-primary); }
.cat-btn.active[data-type="download"] { background: var(--brand-red);       border-color: var(--brand-red);       color: var(--color-inverse); }
.cat-btn.active[data-type="update"]   { background: var(--color-muted);     border-color: var(--color-muted);     color: var(--color-inverse); }

/* ── Card grid ── */
.blog-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 40px 5% 60px;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 32px;
    align-items: start;
}

/* ── Shared card base ── */
.blog-card { cursor: pointer; }
.blog-card a { color: inherit; text-decoration: none; }

.card-content {
    padding: 28px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.card-date    { font-size: var(--text-sm); color: var(--color-muted); margin-bottom: 10px; display: block; }
.card-title   { font-size: 1.35rem; font-weight: var(--weight-semibold); margin-bottom: 12px; line-height: var(--leading-snug); color: var(--color-heading); }
.card-excerpt { font-size: var(--text-sm); color: var(--color-body-secondary); margin-bottom: 20px; flex-grow: 1; line-height: var(--leading-loose); }
.read-more    { font-weight: var(--weight-semibold); display: inline-flex; align-items: center; gap: 6px; font-size: var(--text-sm); margin-top: auto; }
.read-more span { transition: transform var(--transition-slow); display: inline-block; }
.blog-card:hover .read-more span { transform: translateX(4px); }

/* ── Article card ── */
.card-article .card-image {
    height: 220px;
    background: var(--color-bg-muted);
    position: relative;
    overflow: hidden;
}
.card-article .card-image img { width: 100%; height: 100%; object-fit: cover; transition: transform var(--transition-slow); }
.card-article:hover .card-image img { transform: scale(1.05); }
.card-img-placeholder {
    width: 100%; height: 100%;
    background: linear-gradient(135deg, #f5f7fa, #e8edf5);
    display: flex; align-items: center; justify-content: center;
}
.card-tag {
    position: absolute; top: 16px; left: 16px;
    background: var(--color-bg);
    padding: 5px 12px;
    border-radius: var(--radius-full);
    font-size: .72rem;
    font-weight: var(--weight-bold);
    letter-spacing: .5px;
    text-transform: uppercase;
}

/* ── Case Study card (full-width horizontal) ── */
.card-case { grid-column: 1 / -1; }
.card-case > a { display: flex !important; flex-direction: row; width: 100%; height: 100%; }
.case-accent {
    width: 180px;
    flex-shrink: 0;
    background: var(--brand-green);
    color: var(--color-inverse);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 14px;
    padding: 30px 20px;
    border-radius: var(--radius-xl) 0 0 var(--radius-xl);
}
.case-accent-label {
    font-size: .68rem;
    font-weight: var(--weight-bold);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    text-align: center;
    line-height: var(--leading-normal);
    opacity: .9;
}
.case-body {
    flex: 1;
    padding: 32px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    min-width: 0;
}
.case-body .card-title { font-size: 1.5rem; }
.case-image {
    width: 280px;
    flex-shrink: 0;
    overflow: hidden;
    border-radius: 0 var(--radius-xl) var(--radius-xl) 0;
}
.case-image img { width: 100%; height: 100%; object-fit: cover; transition: transform var(--transition-slow); }
.card-case:hover .case-image img { transform: scale(1.05); }

/* ── Guide card ── */
.guide-header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 16px 20px;
    background: #fffbec;
    border-top: 4px solid var(--brand-yellow);
}
.guide-label {
    font-size: .72rem;
    font-weight: var(--weight-bold);
    text-transform: uppercase;
    letter-spacing: .8px;
    color: #b8860b;
}

/* ── Download card — compact horizontal ── */
.card-download > a {
    display: flex !important;
    flex-direction: row;
    align-items: stretch;
    min-height: 0;
}
.dl-icon-col {
    width: 72px;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 16px 0;
    border-radius: var(--radius-lg) 0 0 var(--radius-lg);
}
.dl-badge {
    font-size: .6rem;
    font-weight: var(--weight-bold);
    letter-spacing: .08em;
    text-transform: uppercase;
    color: var(--color-inverse);
    padding: 2px 7px;
    border-radius: var(--radius-full);
}
.dl-body {
    flex: 1;
    padding: 18px 20px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    min-width: 0;
}
.dl-label {
    font-size: var(--text-xs);
    font-weight: var(--weight-semibold);
    letter-spacing: .08em;
    text-transform: uppercase;
}
.dl-title {
    font-size: var(--text-base) !important;
    font-weight: var(--weight-semibold) !important;
    margin-bottom: 0 !important;
    line-height: var(--leading-snug) !important;
}
.dl-excerpt {
    font-size: var(--text-xs) !important;
    margin-bottom: 0 !important;
    flex-grow: 0 !important;
    -webkit-line-clamp: 2;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ── News/Update card — compact horizontal ── */
.card-update {
    border-radius: 0 var(--radius-lg) var(--radius-lg) 0 !important;
}
.news-body {
    padding: 16px 20px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.news-meta {
    display: flex;
    align-items: center;
    gap: 10px;
}
.news-tag {
    font-size: .68rem;
    font-weight: var(--weight-bold);
    text-transform: uppercase;
    letter-spacing: .08em;
    padding: 3px 10px;
    border-radius: var(--radius-full);
}
.news-date {
    font-size: var(--text-xs);
    color: var(--color-muted);
}
.news-title {
    font-family: var(--font-heading);
    font-size: var(--text-base) !important;
    font-weight: var(--weight-semibold) !important;
    color: var(--color-heading) !important;
    line-height: var(--leading-snug) !important;
    margin-bottom: 0 !important;
}
.news-excerpt {
    font-size: var(--text-xs);
    color: var(--color-body-secondary);
    line-height: var(--leading-normal);
    margin: 0;
    -webkit-line-clamp: 2;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.news-cta {
    font-size: var(--text-xs) !important;
    margin-top: 2px;
}

/* ── Empty state ── */
.insights-empty {
    grid-column: 1 / -1;
    text-align: center;
    padding: 80px 20px;
    color: var(--color-muted);
}
.insights-empty p { margin-top: 10px; }

/* ── Load More ── */
.load-more-wrap { text-align: center; padding: 10px 0 80px; }
#btn-load-more {
    padding: 14px 44px;
    border: 1.5px solid var(--color-border-strong);
    background: var(--color-bg);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    font-weight: var(--weight-medium);
    cursor: pointer;
    transition: all var(--transition-base);
    color: var(--color-body);
    font-family: var(--font-body);
}
#btn-load-more:hover    { border-color: var(--brand-primary); background: var(--brand-primary); color: var(--color-inverse); transform: translateY(-2px); }
#btn-load-more:disabled { opacity: .5; cursor: default; transform: none; }

/* ── Skeleton loader ── */
.card-skeleton {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    animation: skel-pulse 1.4s ease-in-out infinite;
}
.skel-img  { height: 220px; background: var(--color-bg-muted); }
.skel-body { padding: 28px; display: flex; flex-direction: column; gap: 12px; }
.skel-line { height: 14px; background: var(--color-bg-muted); border-radius: var(--radius-sm); }
.skel-line.s { width: 40%; }
.skel-line.t { height: 20px; width: 90%; }
.skel-line.m { width: 70%; }
@keyframes skel-pulse { 0%, 100% { opacity: 1; } 50% { opacity: .45; } }

/* ── Responsive ── */
@media (max-width: 900px) {
    .insights-hero-strip         { height: 280px; }
    .insights-hero-strip__title  { font-size: 2rem; }
    .card-case                   { grid-column: auto; }
    .card-case > a               { flex-direction: column !important; }
    .case-accent                 { width: 100%; flex-direction: row; border-radius: var(--radius-xl) var(--radius-xl) 0 0; padding: 16px 24px; gap: 12px; }
    .case-image                  { width: 100%; height: 200px; border-radius: 0 0 var(--radius-xl) var(--radius-xl); }
}

@media (max-width: 768px) {
    .insights-hero-strip         { height: 240px; }
    .insights-hero-strip__title  { font-size: 1.7rem; }
    .insights-hero-strip__content{ padding: 0 5% 36px; }
    .blog-container              { grid-template-columns: 1fr; }
}