/* ========================================
   Note & Blog Card Styles
   ======================================== */

/* Notes grid section */
.notes-section {
    padding: var(--section-padding) 0;
}

/* Filter tabs */
.filter-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 32px;
}

.filter-tab {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 20px;
    font-family: var(--font-heading);
    font-weight: var(--fw-bold);
    font-size: 0.85rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    color: var(--color-muted);
    cursor: pointer;
    transition: all var(--transition-fast);
    background: var(--color-white);
}

.filter-tab:hover,
.filter-tab.active {
    border-color: var(--color-primary);
    color: var(--color-primary);
    background-color: var(--color-primary-light);
}

/* Note card */
.note-card {
    position: relative;
    background-color: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 28px 24px;
    transition: all var(--transition-base);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.note-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background-color: var(--card-color, var(--color-primary));
    border-radius: var(--radius-md) var(--radius-md) 0 0;
}

.note-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-card-hover);
    border-color: var(--card-color, var(--color-primary));
}

.note-card-icon {
    font-size: 2rem;
    margin-bottom: 16px;
    display: block;
}

.note-card-title {
    font-family: var(--font-heading);
    font-weight: var(--fw-bold);
    font-size: 1.1rem;
    color: var(--color-navy-dark);
    margin-bottom: 8px;
}

.note-card-desc {
    font-size: 0.88rem;
    color: var(--color-muted);
    line-height: 1.6;
    margin-bottom: 16px;
    flex-grow: 1;
}

.note-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: auto;
}

.note-card-badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 12px;
    font-size: 0.75rem;
    font-family: var(--font-heading);
    font-weight: var(--fw-bold);
    background-color: var(--color-light-gray);
    border-radius: var(--radius-full);
    color: var(--color-muted);
}

.note-card-arrow {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background-color: var(--color-light-gray);
    color: var(--color-body-text);
    transition: all var(--transition-fast);
}

.note-card:hover .note-card-arrow {
    background-color: var(--card-color, var(--color-primary));
    color: var(--color-white);
    transform: translateX(4px);
}

/* Full-card invisible overlay — makes entire subject card clickable */
.note-card-link {
    position: absolute;
    inset: 0;
    z-index: 1;
}

/* Visible "View Notes →" text link in related posts footer */
.note-card-view-link {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: .75rem;
    font-weight: 700;
    color: #E8311A;
    text-decoration: none;
    white-space: nowrap;
    position: relative;
    z-index: 2;
}

.note-card-view-link:hover {
    text-decoration: underline;
}

/* Blog card */
.blog-card {
    background-color: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: all var(--transition-base);
}

.blog-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-card-hover);
}

.blog-card-image {
    position: relative;
    width: 100%;
    height: 200px;
    overflow: hidden;
    background-color: var(--color-light-gray);
}

.blog-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.blog-card:hover .blog-card-image img {
    transform: scale(1.05);
}

.blog-card-category {
    position: absolute;
    top: 12px;
    left: 12px;
    padding: 4px 12px;
    font-family: var(--font-heading);
    font-weight: var(--fw-bold);
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    background-color: var(--color-primary);
    color: var(--color-white);
    border-radius: var(--radius-full);
    z-index: 2;
}

.blog-card-body {
    padding: 20px 24px;
}

.blog-card-meta {
    display: flex;
    gap: 12px;
    font-size: 0.8rem;
    color: var(--color-muted);
    margin-bottom: 10px;
}

.blog-card-title {
    font-family: var(--font-heading);
    font-weight: var(--fw-bold);
    font-size: 1.05rem;
    color: var(--color-navy-dark);
    margin-bottom: 8px;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.blog-card-title a {
    color: inherit;
}

.blog-card-title a:hover {
    color: var(--color-primary);
}

.blog-card-excerpt {
    font-size: 0.88rem;
    color: var(--color-muted);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: 0;
}

/* Blog section */
.blog-section {
    padding: var(--section-padding) 0;
    background-color: var(--color-light-gray);
}

/* Features strip */
.features-section {
    padding: 48px 0;
    background-color: var(--color-light-gray);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 24px;
    background-color: var(--color-white);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    transition: all var(--transition-base);
}

.feature-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-card-hover);
}

.feature-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.feature-text {
    font-family: var(--font-heading);
    font-weight: var(--fw-bold);
    font-size: 0.92rem;
    color: var(--color-navy-dark);
}

.feature-subtext {
    font-size: 0.82rem;
    color: var(--color-muted);
    margin-top: 2px;
}

/* University section */
.university-section {
    padding: var(--section-padding) 0;
    background-color: var(--color-white);
}

.university-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.university-card {
    background-color: var(--color-navy-dark);
    border-radius: var(--radius-md);
    padding: 32px 24px;
    color: var(--color-white);
    text-align: center;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.university-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(232, 49, 26, 0.1), transparent);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.university-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 16px 48px rgba(15, 31, 61, 0.4);
}

.university-card:hover::before {
    opacity: 1;
}

.university-card-icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
    display: block;
    position: relative;
    z-index: 1;
}

.university-card-title {
    font-family: var(--font-heading);
    font-weight: var(--fw-extrabold);
    font-size: 1.15rem;
    color: var(--color-white);
    margin-bottom: 8px;
    position: relative;
    z-index: 1;
}

.university-card-desc {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.5;
    position: relative;
    z-index: 1;
}

.university-card-link {
    position: absolute;
    inset: 0;
    z-index: 2;
}

/* Upload CTA */
.upload-cta-section {
    padding: var(--section-padding) 0;
    background: linear-gradient(135deg, var(--color-navy-dark) 0%, var(--color-navy-medium) 100%);
    position: relative;
    overflow: hidden;
    text-align: center;
}

.upload-cta-section::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 500px;
    height: 500px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(232, 49, 26, 0.2) 0%, transparent 60%);
    pointer-events: none;
}

.upload-cta-content {
    position: relative;
    z-index: 2;
}

.upload-cta-title {
    font-family: var(--font-heading);
    font-weight: var(--fw-extrabold);
    font-size: clamp(1.5rem, 3.5vw, 2.25rem);
    color: var(--color-white);
    margin-bottom: 16px;
}

.upload-cta-desc {
    font-size: 1.05rem;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 32px;
    max-width: 550px;
    margin-left: auto;
    margin-right: auto;
}

/* ── NEW NOTE CARD V2 ─────────────────────────── */
.note-card-v2 {
    display: flex;
    flex-direction: column;
    height: 100%;
    background: #fff;
    border-radius: 16px;
    border: 1.5px solid #E8ECF0;
    padding: 20px;
    text-decoration: none;
    color: inherit;
    position: relative;
    overflow: hidden;
    transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}

.note-card-v2::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--card-border, #E8311A);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform .25s ease;
}

.note-card-v2:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, .1);
    border-color: transparent;
}

.note-card-v2:hover::before {
    transform: scaleX(1);
}

.nc-top {
    margin-bottom: 12px;
}

.nc-badge {
    display: inline-block;
    font-size: .68rem;
    font-weight: 800;
    padding: 4px 10px;
    border-radius: 40px;
    letter-spacing: .5px;
    text-transform: uppercase;
}

.nc-body {
    flex: 1;
    margin-bottom: 16px;
}

.nc-title {
    font-size: .95rem;
    font-weight: 700;
    color: #1C2B3A;
    line-height: 1.4;
    margin-bottom: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.nc-excerpt {
    font-size: .78rem;
    color: #637083;
    line-height: 1.55;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.nc-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 14px;
    border-top: 1px solid #F0F2F5;
    margin-top: auto;
}

.nc-date {
    font-size: .72rem;
    color: #637083;
    font-weight: 500;
}

.nc-btn {
    font-size: .78rem;
    font-weight: 700;
    color: #E8311A;
    display: flex;
    align-items: center;
    gap: 4px;
    transition: gap .15s;
}

.note-card-v2:hover .nc-btn {
    gap: 8px;
}

/* Override posts-grid for v2 cards with equal height */
.posts-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    align-items: stretch;
}

@media (max-width: 1024px) {
    .posts-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .posts-grid {
        grid-template-columns: 1fr;
    }
}

/* ── NOTE CARD v2 ──────────────────────────────────────────────────── */
.note-card-v2 {
    display: flex;
    flex-direction: column;
    /* stack sections top → bottom */
    background: #fff;
    border-radius: 14px;
    border: 1.5px solid #E8ECF0;
    border-top: 3px solid var(--card-border, #E8311A);
    padding: 20px;
    text-decoration: none;
    color: inherit;
    height: 100%;
    /* fill grid cell */
    transition: transform .18s ease, box-shadow .18s ease, border-color .18s;
    box-shadow: 0 2px 8px rgba(0, 0, 0, .04);
}

.note-card-v2:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 28px rgba(0, 0, 0, .1);
    border-color: var(--card-border, #E8311A);
}

/* Category badge */
.nc-top {
    margin-bottom: 12px;
}

.nc-badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: .68rem;
    font-weight: 800;
    letter-spacing: .5px;
    text-transform: uppercase;
}

/* Title + excerpt */
.nc-body {
    flex: 1;
    /* grow to push footer down */
    margin-bottom: 16px;
}

.nc-title {
    font-size: .98rem;
    font-weight: 700;
    color: #0F1F3D;
    line-height: 1.4;
    margin-bottom: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.nc-excerpt {
    font-size: .8rem;
    color: #637083;
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Footer — date + button — pinned to bottom */
.nc-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 14px;
    border-top: 1.5px solid #F0F2F5;
    margin-top: auto;
    /* ← this pins the footer to bottom */
    gap: 8px;
    flex-wrap: wrap;
}

.nc-date {
    font-size: .72rem;
    color: #637083;
}

.nc-btn {
    font-size: .72rem;
    font-weight: 700;
    color: var(--card-border, #E8311A);
    white-space: nowrap;
    transition: gap .15s;
}

.note-card-v2:hover .nc-btn {
    text-decoration: underline;
}

/* ── POSTS GRID ──────────────────────────────────────────────────── */
.posts-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    align-items: stretch;
    /* equal height columns */
}

@media (max-width: 1024px) {
    .posts-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 560px) {
    .posts-grid {
        grid-template-columns: 1fr;
    }
}