/* === View Switcher === */
.view-switcher {
    display: flex; gap: 2px; align-items: center;
    background: var(--cl-bg-alt); border-radius: 8px; padding: 2px;
    border: 1px solid var(--cl-border-light);
}
.vs-btn {
    border: none; background: transparent; padding: 0.35rem 0.55rem;
    border-radius: 6px; color: var(--cl-text-subtle); cursor: pointer; font-size: var(--font-size-100);
    transition: all 0.15s; display: flex; align-items: center; justify-content: center;
    line-height: 1;
}
.vs-btn:hover { color: var(--cl-text); }
.vs-btn.active { color: var(--site-accent); background: var(--cl-card); box-shadow: 0 1px 3px rgba(0,0,0,0.08); }

.course-filter-icon {
    width: 1rem;
    height: 1rem;
    object-fit: contain;
    vertical-align: -0.15em;
}

/* === Universal Course Card === */
.cc-link {
    text-decoration: none; color: inherit; display: flex; flex-direction: column; height: 100%;
    border-radius: 14px; background: var(--content-card-surface, var(--cl-card));
    border: 1.5px solid var(--content-card-border, var(--cl-border-light));
    transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.35s, border-color 0.3s;
    box-shadow: var(--cl-shadow-card);
}
.cc-link:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px color-mix(in srgb, var(--cc, var(--site-accent)), transparent 75%);
    color: inherit;
    border-color: transparent;
    background-image:
        linear-gradient(var(--content-card-surface, var(--cl-card)), var(--content-card-surface, var(--cl-card))),
        conic-gradient(from var(--glow-angle, 0deg), transparent 40%, var(--cc, var(--site-accent)) 50%, var(--cc-bg, var(--site-accent-soft)) 55%, transparent 60%);
    background-origin: border-box;
    background-clip: padding-box, border-box;
    animation: glow-spin 2.5s linear infinite;
}

.cc-cover {
    position: relative; padding: 1.5rem; text-align: center; color: #fff;
    min-height: 120px; display: flex; align-items: center; justify-content: center;
    border-radius: 13px 13px 0 0; overflow: hidden;
}
.cc-icon-bi { font-size: var(--font-size-900); opacity: 0.9; }
.cc-icon-logo {
    font-size: var(--font-size-600); font-weight: 700; font-family: var(--site-font-mono, 'Cascadia Code', monospace);
    padding: 0.45rem 1rem; border-radius: 12px; letter-spacing: -1px;
    box-shadow: 0 4px 14px rgba(0,0,0,0.2); line-height: 1;
}
.cc-level-badge {
    position: absolute; top: 0.5rem; right: 0.5rem;
    background: rgba(255,255,255,0.2); backdrop-filter: blur(4px);
    padding: 0.15rem 0.55rem; border-radius: 50px; font-size: var(--font-size-100); font-weight: 600;
}

.cc-sq-icon {
    width: 48px; height: 48px; border-radius: 12px;
    display: none; align-items: center; justify-content: center;
    flex-shrink: 0; color: #fff; font-size: var(--font-size-500);
}
.cc-sq-logo { font-weight: 700; font-size: var(--font-size-100); font-family: var(--site-font-mono, 'Cascadia Code', monospace); }

.cc-body { padding: 1rem 1.1rem; flex: 1; min-width: 0; display: flex; flex-direction: column; }
.cc-level-text { display: none; font-size: var(--font-size-100); font-weight: 600; color: var(--cl-text-subtle); text-transform: uppercase; letter-spacing: 0.04em; }
.cc-title { font-family: var(--site-font-display, var(--cl-font-display)); font-weight: 700; font-size: var(--content-card-title-size, var(--font-size-300)); margin-bottom: 0.3rem; color: var(--content-card-title, var(--cl-text-heading)); line-height: 1.3; }
.cc-desc {
    font-size: var(--content-card-body-size, var(--font-size-100)); color: var(--content-card-text, var(--cl-text-muted)); line-height: var(--content-card-body-line-height, 1.55); margin-bottom: 0.65rem;
    display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden;
}
.cc-tags { display: flex; flex-wrap: wrap; gap: 0.3rem; margin-bottom: 0.65rem; padding-top: 0.65rem; border-top: 1px solid var(--content-card-border, var(--cl-border-light)); }
.cc-tag {
    display: inline-flex; align-items: center;
    background: color-mix(in srgb, var(--cc, var(--site-accent)), transparent 90%);
    color: var(--cc, var(--site-accent));
    padding: 0.18rem 0.55rem; border-radius: 50px; font-size: var(--font-size-100); font-weight: 500; line-height: 1.4;
}
.cc-meta { display: flex; align-items: center; flex-wrap: wrap; gap: 0.45rem; font-size: var(--content-card-meta-size, var(--font-size-100)); color: var(--content-card-muted, var(--cl-text-muted)); padding-top: 0.4rem; }
.cc-meta__chip { display: inline-flex; align-items: center; min-height: 28px; padding: 0 0.65rem; border: 1px solid var(--content-card-border, var(--cl-border-light)); border-radius: 999px; background: color-mix(in srgb, var(--content-card-surface, var(--cl-card)) 88%, transparent); white-space: nowrap; }
.cc-meta i { color: var(--cc, var(--site-accent)); opacity: 0.7; }

.cc-price {
    margin-top: 0.5rem;
    font-size: var(--font-size-100);
    font-weight: 700;
    color: var(--site-accent);
}
.cc-price-free {
    color: var(--cl-success);
    font-weight: 600;
}
.cc-arrow { display: none; color: var(--cl-text-subtle); margin-left: auto; flex-shrink: 0; align-self: center; }

.course-index-intro {
    max-inline-size: var(--reader-measure, 68ch);
    color: var(--reader-text, var(--cl-text));
    font-size: var(--reader-font-size-mobile, var(--font-size-300));
    line-height: var(--reader-line-height, 1.65);
}

/* ---- View: Cards (default) ---- */
/* .cc-cover visible, .cc-sq-icon hidden — default */

/* ---- View: Minimal ---- */
.view-minimal .cc-link { display: flex; align-items: center; border-radius: 12px; }
.view-minimal .cc-cover { display: none; }
.view-minimal .cc-sq-icon { display: flex; margin: 0.75rem 0 0.75rem 0.75rem; }
.view-minimal .cc-level-text { display: block; }
.view-minimal .cc-tags { display: none; }
.view-minimal .course-item { flex: 0 0 33.333%; }

/* ---- View: List ---- */
.view-list .course-item { flex: 0 0 100%; max-width: 100%; }
.view-list .cc-link { display: flex; align-items: center; border-radius: 10px; gap: 0.5rem; padding-right: 1rem; }
.view-list .cc-cover { display: none; }
.view-list .cc-sq-icon { display: flex; margin: 0.6rem 0 0.6rem 0.6rem; }
.view-list .cc-body { padding: 0.5rem 0.5rem; }
.view-list .cc-title { font-size: var(--font-size-100); margin-bottom: 0; }
.view-list .cc-desc { display: none; }
.view-list .cc-tags { display: none; }
.view-list .cc-level-text { display: none; }
.view-list .cc-arrow { display: block; }
.view-list .cc-meta { margin-top: 2px; }

/* ---- View: Glass ---- */
.view-glass .cc-link {
    background: transparent; border: none; position: relative; overflow: hidden;
}
.view-glass .cc-link:hover { box-shadow: 0 8px 24px rgba(0,0,0,0.15); }
.view-glass .cc-cover {
    position: absolute; inset: 0; min-height: auto; padding: 0;
}
.view-glass .cc-icon-logo, .view-glass .cc-icon-bi, .view-glass .cc-level-badge { display: none; }
.view-glass .cc-body {
    position: relative; z-index: 1; padding: 1rem;
    background: rgba(255,255,255,0.08); backdrop-filter: blur(12px) saturate(1.2);
    -webkit-backdrop-filter: blur(12px) saturate(1.2);
}
.view-glass .cc-title { color: #fff; }
.view-glass .cc-desc { color: rgba(255,255,255,0.8); }
.view-glass .cc-tag { background: rgba(255,255,255,0.2); color: #fff; }
.view-glass .cc-meta { color: rgba(255,255,255,0.7); }
.view-glass .cc-level-text { display: block; color: rgba(255,255,255,0.6); }
.view-glass .cc-sq-icon { display: none; }

/* === Course Detail Layout === */

/* Toggle pills */
.cd-view-toggle { display: flex; gap: 0.5rem; margin-bottom: 1.25rem; }
.cd-toggle-pill {
    border: 1.5px solid var(--cl-border); background: var(--cl-card);
    border-radius: 50px; padding: 0.38rem 1.1rem;
    font-size: var(--font-size-100); font-weight: 600; color: var(--cl-text-muted);
    cursor: pointer; transition: all 0.15s;
}
.cd-toggle-pill.active { background: var(--site-accent); border-color: var(--site-accent); color: var(--site-on-accent); }

/* Program header */
.cd-program-header {
    display: flex; align-items: center;
    margin-bottom: 1.1rem;
}
.cd-program-title {
    display: flex; align-items: center; gap: 0.4rem;
    font-family: var(--site-font-display, var(--cl-font-display));
    font-size: var(--font-size-400); font-weight: 700; color: var(--cl-text-heading); flex: 1;
}
.cd-program-title i { color: var(--site-accent); }

/* Hero progress block */
.cd-hero-progress {
    flex-shrink: 0;
    width: 260px;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 16px;
    padding: 1.25rem 1.3rem;
    backdrop-filter: blur(8px);
    align-self: center;
}
.cd-hero-progress-top {
    display: flex; justify-content: space-between; align-items: baseline;
    margin-bottom: 0.6rem;
}
.cd-hero-progress-label {
    font-size: var(--font-size-100); font-weight: 600; color: rgba(255,255,255,0.55);
    text-transform: uppercase; letter-spacing: 0.04em;
}
.cd-hero-progress-pct {
    font-family: var(--site-font-display, var(--cl-font-display));
    font-size: var(--font-size-800); font-weight: 700; color: var(--site-accent);
    line-height: 1;
}
.cd-hero-progress-bar {
    height: 6px; background: rgba(255,255,255,0.12);
    border-radius: 10px; overflow: hidden; margin-bottom: 0.75rem;
}
.cd-hero-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--site-accent), var(--cl-success));
    border-radius: 10px; transition: width 0.5s ease;
}
.cd-hero-progress-stats {
    display: flex; flex-direction: column; gap: 0.2rem;
    font-size: var(--font-size-100); color: rgba(255,255,255,0.5);
    margin-bottom: 0.85rem;
}
.cd-hero-continue {
    display: flex; align-items: center; justify-content: center; gap: 0.4rem;
    width: 100%; padding: 0.6rem; border: none; border-radius: 10px;
    background: linear-gradient(135deg, var(--site-accent-hover), var(--site-accent));
    color: var(--site-on-accent); font-weight: 700; font-size: var(--font-size-100);
    text-decoration: none; transition: all 0.2s;
    box-shadow: 0 4px 16px color-mix(in srgb, var(--site-accent) 25%, transparent);
}
.cd-hero-continue:hover { opacity: 0.9; color: var(--site-on-accent); transform: translateY(-1px); }

/* Interview banner */
.cd-interview-banner {
    display: flex; align-items: center; gap: 1rem;
    background: var(--cl-dark-surface); border-radius: 14px;
    padding: 1rem 1.5rem; color: #fff;
}
.cd-interview-banner-icon {
    width: 40px; height: 40px; border-radius: 10px;
    background: rgba(255,255,255,0.08);
    display: flex; align-items: center; justify-content: center;
    font-size: var(--font-size-400); flex-shrink: 0;
}
.cd-interview-banner-text {
    flex: 1; display: flex; flex-direction: column; gap: 0.1rem;
}
.cd-interview-banner-text strong { font-size: var(--font-size-100); }
.cd-interview-banner-text span { font-size: var(--font-size-100); color: rgba(255,255,255,0.55); }
.cd-interview-banner-btn {
    padding: 0.45rem 1.2rem; border: 1px solid rgba(255,255,255,0.2);
    border-radius: 8px; background: rgba(255,255,255,0.08);
    color: #fff; font-size: var(--font-size-100); font-weight: 600;
    cursor: pointer; transition: background 0.15s; white-space: nowrap;
}
.cd-interview-banner-btn:hover { background: rgba(255,255,255,0.15); }

@media (max-width: 768px) {
    .cd-hero-progress { width: 100%; margin-top: 1rem; margin-left: 0; }
    .cd-interview-banner { flex-direction: column; text-align: center; }
}

/* Progress card */
.cd-progress-card {
    background: var(--cl-card); border-radius: 16px;
    box-shadow: var(--cl-shadow-card); padding: 1.25rem;
    border: 1px solid var(--cl-border-light);
}
.cd-progress-header {
    display: flex; align-items: center; gap: 0.4rem;
    font-size: var(--font-size-100); font-weight: 600; color: var(--cl-text-muted); margin-bottom: 0.4rem;
}
.cd-progress-pct {
    font-family: var(--site-font-display, var(--cl-font-display));
    font-size: var(--font-size-900); font-weight: 700; color: var(--site-accent); line-height: 1; margin-bottom: 0.55rem;
}
.cd-progress-bar-wrap {
    height: 6px; background: var(--cl-border); border-radius: 10px; margin-bottom: 1rem; overflow: hidden;
}
.cd-progress-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--site-accent), var(--cl-success));
    border-radius: 10px; transition: width 0.5s ease;
}
.cd-progress-stats { display: flex; flex-direction: column; gap: 0.45rem; margin-bottom: 1rem; }
.cd-progress-stat {
    display: flex; justify-content: space-between;
    font-size: var(--font-size-100); color: var(--cl-text-muted);
}
.cd-progress-stat strong { color: var(--cl-text); font-weight: 600; }
.cd-continue-btn {
    width: 100%; padding: 0.65rem; border: none; border-radius: 10px;
    background: linear-gradient(135deg, var(--site-accent-hover), var(--site-accent));
    color: var(--site-on-accent); font-weight: 700; font-size: var(--font-size-100); cursor: pointer;
    text-decoration: none; display: flex; align-items: center;
    justify-content: center; gap: 0.4rem; transition: opacity 0.15s;
}
.cd-continue-btn:hover { opacity: 0.88; color: var(--site-on-accent); }

/* Interview card */
.cd-interview-card {
    background: var(--cl-dark-surface); border-radius: 16px; padding: 1.25rem; color: #fff;
}
.cd-interview-title {
    font-family: var(--site-font-display, var(--cl-font-display));
    font-size: var(--font-size-200); font-weight: 700; margin-bottom: 0.35rem;
    display: flex; align-items: center; gap: 0.5rem;
}
.cd-interview-desc { font-size: var(--font-size-100); color: rgba(255,255,255,0.65); margin-bottom: 0.9rem; line-height: 1.5; }
.cd-interview-btn {
    width: 100%; padding: 0.55rem; border: 1px solid rgba(255,255,255,0.2);
    border-radius: 8px; background: rgba(255,255,255,0.08);
    color: #fff; font-size: var(--font-size-100); font-weight: 600; cursor: pointer;
    transition: background 0.15s; display: flex; align-items: center;
    justify-content: center; gap: 0.4rem;
}
.cd-interview-btn:hover { background: rgba(255,255,255,0.15); }

/* === Course Blocks === */
.course-block {
    background: var(--cl-card);
    border-radius: 16px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.05);
    overflow: hidden;
    border: 1px solid var(--cl-border-light);
}

.course-block-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.4rem;
    background: var(--cl-card);
    border-bottom: 1px solid var(--cl-border-light);
}

.course-block-marker {
    width: 4px;
    height: 40px;
    border-radius: 3px;
    background: var(--block-color);
    flex-shrink: 0;
}

.cb-icon-chip {
    width: 28px;
    height: 28px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    color: #fff;
    font-size: var(--font-size-100);
}

.course-block-info {
    flex: 1;
}

.course-block-info h4 {
    font-size: var(--font-size-300);
}

.course-block-info h4 i {
    color: var(--block-color);
}

.course-block-count {
    font-size: var(--font-size-100);
    font-weight: 600;
    color: var(--cl-text-muted);
    white-space: nowrap;
    background: var(--cl-bg-alt);
    padding: 0.2rem 0.6rem;
    border-radius: 20px;
}

.course-block-lessons {
    display: flex;
    flex-direction: column;
    padding: 0.25rem 0;
}

.course-block-lesson {
    display: flex;
    align-items: center;
    padding: 0.6rem 1.4rem;
    transition: background 0.15s;
    position: relative;
    border-bottom: 1px dashed var(--cl-border-light);
}

.course-block-lesson:last-child {
    border-bottom: none;
}

.course-block-lesson:hover {
    background: var(--cl-card-hover);
}

.course-block-lesson .cl-link {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    color: var(--cl-text);
    min-width: 0;
}

.course-block-lesson .cl-link:hover {
    color: var(--cl-text);
}

.course-block-lesson .cl-link-locked {
    cursor: pointer;
    opacity: 0.6;
    transition: opacity 0.15s;
}
.course-block-lesson .cl-link-locked:hover {
    opacity: 0.9;
    color: var(--cl-text);
}

.lesson-order {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    color: white;
    font-size: var(--font-size-100);
    font-weight: 700;
    flex-shrink: 0;
    position: relative;
    z-index: 1;
    box-shadow: 0 2px 8px color-mix(in srgb, currentColor, transparent 70%);
    transition: transform 0.2s, box-shadow 0.2s;
}
.course-block-lesson:hover .lesson-order {
    transform: scale(1.1);
}
.lesson-done {
    display: flex; align-items: center; justify-content: center;
    width: 32px; height: 32px; border-radius: 50%;
    background: var(--cl-success); color: #fff; font-size: var(--font-size-100); flex-shrink: 0;
    position: relative; z-index: 1;
    box-shadow: 0 2px 8px rgba(var(--cl-success-rgb),0.3);
}

.lesson-title {
    flex: 1;
    font-family: var(--site-font-display, var(--cl-font-display));
    font-weight: 500;
    font-size: var(--font-size-100);
}

.lesson-tags {
    display: flex;
    gap: 0.3rem;
}

.lesson-tags .tag {
    padding: 0.2rem 0.45rem;
    font-size: var(--font-size-100);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 26px;
    height: 26px;
    transition: transform 0.15s;
}
.lesson-tags .tag:hover {
    transform: scale(1.15);
}

.lesson-arrow {
    color: var(--cl-text-subtle);
    font-size: var(--font-size-100);
    transition: color 0.15s, transform 0.15s;
    margin-left: auto;
}

.course-block-lesson:hover .lesson-arrow {
    color: var(--site-accent);
    transform: translateX(3px);
}

/* === Course Info Modal === */
.cim-modal {
    border: none;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 24px 60px rgba(0,0,0,.18);
}
.cim-header {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 1.5rem 1.75rem;
    background: linear-gradient(135deg, var(--hero-c1, var(--site-accent)) 0%, var(--hero-c2, var(--site-accent-hover)) 100%);
    color: #fff;
}
.cim-header-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: rgba(255,255,255,.15);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.cim-header-icon img { width: 28px; height: 28px; object-fit: contain; }
.cim-header-icon i { font-size: var(--font-size-600); color: #fff; }
.cim-header-label {
    font-size: var(--font-size-100);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: rgba(255,255,255,.6);
    margin-bottom: 2px;
}
.cim-header-title {
    font-family: var(--site-font-display, var(--cl-font-display));
    font-size: var(--font-size-400);
    font-weight: 700;
    line-height: 1.2;
}
.cim-body {
    padding: 1.75rem;
    background: var(--cl-card);
}
.cim-label {
    display: block;
    font-size: var(--font-size-100);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--cl-text-muted);
    margin-bottom: 8px;
}
.cim-input {
    border: 1.5px solid var(--cl-border);
    border-radius: 10px;
    font-size: var(--font-size-200);
    padding: 10px 14px;
    transition: border-color .2s;
}
.cim-input:focus {
    border-color: var(--site-accent);
    box-shadow: 0 0 0 3px var(--site-accent-focus);
}
.cim-footer {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    padding: 1rem 1.75rem;
    background: var(--cl-bg-alt);
    border-top: 1px solid var(--cl-border-light);
}
.cim-save-btn {
    background: linear-gradient(135deg, var(--site-accent), var(--site-accent-hover));
    color: var(--site-on-accent);
    font-weight: 600;
    padding: 8px 28px;
    border-radius: 8px;
    border: none;
    transition: opacity .2s;
}
.cim-save-btn:hover { opacity: .88; color: var(--site-on-accent); }
.cim-icon-row {
    display: flex;
    gap: 10px;
    align-items: center;
}
.cim-icon-inputs {
    display: flex;
    flex-direction: column;
    gap: 6px;
    flex: 1;
}
.cim-input-sm { padding: 7px 12px; font-size: var(--font-size-100); }
.cim-upload-btn {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: var(--font-size-100);
    font-weight: 600;
    color: var(--site-accent);
    cursor: pointer;
    padding: 5px 10px;
    border: 1.5px dashed var(--cl-border);
    border-radius: 8px;
    transition: border-color .2s, background .2s;
}
.cim-upload-btn:hover { border-color: var(--site-accent); background: var(--site-accent-soft); }
.cim-icon-preview {
    width: 52px;
    height: 52px;
    border-radius: 12px;
    background: var(--cl-bg-alt);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: var(--font-size-600);
    color: var(--site-accent);
    overflow: hidden;
}
.cim-colors-row {
    display: flex;
    gap: 8px;
    align-items: center;
}
.cim-color {
    width: 44px;
    height: 44px;
    padding: 4px;
    border-radius: 10px;
    flex-shrink: 0;
}
.cim-color-sample {
    flex: 1;
    height: 44px;
    border-radius: 10px;
}

/* === Course Edit Mode === */
.edit-only { display: none !important; }
.course-edit-mode .edit-only { display: flex !important; }
.course-edit-mode .view-only { display: none !important; }

/* Equal-height subcourse cards */
.sc-card-wrap {
    position: relative;
    height: 100%;
    width: 100%;
}
#courseContent .col-md-4 {
    display: flex;
}
#courseContent .sc-card {
    width: 100%;
}
.sc-edit-actions {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    display: flex;
    justify-content: flex-end;
    gap: 6px;
    padding: 10px 12px;
    background: linear-gradient(to top, rgba(0,0,0,.55) 0%, transparent 100%);
    border-radius: 0 0 16px 16px;
    z-index: 2;
    opacity: 0;
    transition: opacity .2s;
}
.sc-card-wrap:hover .sc-edit-actions {
    opacity: 1;
}
.sc-edit-actions .btn {
    backdrop-filter: blur(4px);
    background: rgba(255,255,255,.15);
    border-color: rgba(255,255,255,.3);
    color: #fff;
    padding: 4px 10px;
    font-size: var(--font-size-100);
}
.sc-edit-actions .btn:hover {
    background: rgba(255,255,255,.3);
    color: #fff;
}
.sc-edit-actions .btn-outline-danger:hover {
    background: rgba(220,53,69,.7);
    border-color: transparent;
}

.cl-drag-handle, .cb-drag-handle {
    cursor: grab;
    color: var(--cl-text-subtle);
    font-size: var(--font-size-300);
    padding: 0 6px;
    flex-shrink: 0;
}
.cl-drag-handle:hover, .cb-drag-handle:hover { color: var(--site-accent); }
.cl-drag-handle:active, .cb-drag-handle:active { cursor: grabbing; }

.cl-edit-actions, .cb-edit-actions {
    display: flex;
    gap: 4px;
    flex-shrink: 0;
    margin-left: auto;
}

.cl-dragging {
    opacity: 0;
    height: 40px !important;
    padding: 0 !important;
    overflow: hidden;
    border: 2px dashed var(--site-accent) !important;
    border-radius: 8px;
    background: var(--site-accent-soft);
    border-bottom: 2px dashed var(--site-accent) !important;
}

.cl-ghost {
    position: fixed;
    z-index: 9999;
    pointer-events: none;
    opacity: 0.9;
    background: var(--cl-card);
    border: 2px solid var(--site-accent);
    border-radius: 10px;
    box-shadow: 0 8px 32px color-mix(in srgb, var(--site-accent) 25%, transparent);
    padding: 0.85rem 1.25rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.cb-dragging {
    opacity: 0.3;
}

.cb-ghost {
    position: fixed;
    z-index: 9999;
    pointer-events: none;
    opacity: 0.9;
    background: var(--cl-card);
    border: 2px solid var(--site-accent);
    border-radius: 10px;
    box-shadow: 0 8px 32px color-mix(in srgb, var(--site-accent) 25%, transparent);
    padding: 0.75rem 1.25rem;
    font-weight: 700;
    font-size: var(--font-size-300);
}

.course-edit-mode .course-block {
    border: 1px dashed transparent;
    border-radius: 12px;
    transition: border-color 0.2s;
}

.course-edit-mode .course-block:hover {
    border-color: var(--cl-border);
}

/* ── Prerequisites section (course detail) ────────────────────────────────── */
.cd-prereqs {
    background: var(--cl-card);
    border: 1.5px solid var(--cl-border);
    border-radius: 16px;
    padding: 1rem 1.25rem 1.1rem;
}
.cd-prereqs-label {
    font-size: var(--font-size-100);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    color: var(--cl-text-muted);
    margin-bottom: 0.75rem;
}
.cd-prereqs-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.65rem;
}
.cd-prereq-card {
    display: flex;
    align-items: center;
    gap: 0.7rem;
    background: var(--cl-bg-alt);
    border: 1.5px solid var(--cl-border);
    border-radius: 12px;
    padding: 0.55rem 0.85rem 0.55rem 0.6rem;
    text-decoration: none;
    color: inherit;
    transition: all 0.15s;
    min-width: 0;
    flex: 1 1 220px;
    max-width: 340px;
}
.cd-prereq-card:hover {
    border-color: var(--site-accent);
    background: var(--site-accent-soft);
    color: inherit;
    transform: translateY(-1px);
}
.cd-prereq-icon {
    width: 36px; height: 36px;
    border-radius: 10px; flex-shrink: 0;
    display: flex; align-items: center; justify-content: center;
    color: #fff; font-size: var(--font-size-300);
    box-shadow: 0 2px 8px rgba(0,0,0,0.18);
}
.cd-prereq-body { flex: 1; min-width: 0; }
.cd-prereq-name {
    font-family: var(--site-font-display, var(--cl-font-display));
    font-weight: 700;
    font-size: var(--font-size-100);
    color: var(--cl-text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.cd-prereq-meta {
    font-size: var(--font-size-100);
    color: var(--cl-text-muted);
    display: flex; gap: 0.4rem; flex-wrap: wrap;
    margin-top: 0.1rem;
}
.cd-prereq-arrow {
    color: var(--cl-text-muted);
    font-size: var(--font-size-100);
    flex-shrink: 0;
    transition: transform 0.15s;
}
.cd-prereq-card:hover .cd-prereq-arrow { transform: translateX(3px); color: var(--site-accent); }

/* ── Prerequisites in course edit modal ───────────────────────────────────── */
.cim-hint {
    font-size: var(--font-size-100);
    color: var(--cl-text-muted);
    margin: -0.5rem 0 0.75rem;
}
.cim-prereq-list {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    max-height: 220px;
    overflow-y: auto;
    border: 1px solid var(--cl-border);
    border-radius: 10px;
    padding: 0.5rem 0.75rem;
    background: var(--cl-bg-alt);
}
.cim-prereq-item {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-size: var(--font-size-100);
    color: var(--cl-text);
    cursor: pointer;
    padding: 0.2rem 0;
}
.cim-prereq-item input[type="checkbox"] { flex-shrink: 0; cursor: pointer; }