/* =====================================================================
   Bynteq 4.0 - Learn / course listing (learn.css)
   Uses design tokens from themes.css.
   ===================================================================== */

.learn-hero {
    text-align: center;
    padding: 80px 20px 40px;
    max-width: 720px;
    margin: 0 auto;
}

.learn-hero h2 {
    font-size: clamp(34px, 5vw, 50px);
    letter-spacing: -1.5px;
    line-height: 1.1;
}

.learn-hero p {
    color: var(--text-secondary);
    font-size: 18px;
    margin-top: 14px;
}

.courses {
    padding: 30px 8% 70px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
    max-width: var(--maxw);
    margin: 0 auto;
    align-items: stretch;
}

/* ---- Course card ---- */
.course-card {
    background: var(--surface);
    padding: 28px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
}

.course-card:hover {
    transform: translateY(-8px);
    border-color: var(--border-strong);
    box-shadow: var(--shadow);
}

.course-card.featured {
    border-color: color-mix(in srgb, var(--accent) 45%, var(--border));
    background:
        radial-gradient(120% 80% at 100% 0%, var(--accent-soft) 0%, transparent 55%),
        var(--surface);
}

.course-card__top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 18px;
}

.course-icon {
    display: inline-grid;
    place-items: center;
    width: 54px;
    height: 54px;
    font-size: 28px;
    border-radius: var(--radius);
    background: var(--accent-soft);
    border: 1px solid var(--border);
}

.course-card h3 {
    font-size: 22px;
    margin-bottom: 8px;
}

.course-card p {
    color: var(--text-secondary);
    margin: 0 0 18px;
    font-size: 15px;
}

/* Level + status badges */
.level-badge {
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    padding: 6px 12px;
    border-radius: var(--radius-pill);
    border: 1px solid var(--border);
}

.level-beginner { color: var(--success); background: var(--success-soft); border-color: transparent; }
.level-soon { color: var(--text-secondary); background: var(--surface-2); }

/* Meta tags */
.course-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
}

.course-tag {
    font-size: 13px;
    color: var(--text-secondary);
    background: var(--surface-2);
    border: 1px solid var(--border);
    padding: 6px 12px;
    border-radius: var(--radius-pill);
}

/* Progress */
.course-progress {
    margin: auto 0 20px;
}

.progress-track {
    height: 8px;
    border-radius: var(--radius-pill);
    background: var(--surface-2);
    overflow: hidden;
    border: 1px solid var(--border);
}

.progress-fill {
    height: 100%;
    width: 0;
    border-radius: inherit;
    background: linear-gradient(90deg, var(--accent), var(--accent-secondary));
    transition: width var(--t-slow);
}

.progress-label {
    display: block;
    margin-top: 8px;
    font-size: 13px;
    color: var(--text-secondary);
}

.course-card button {
    width: 100%;
    margin-top: auto;
}

/* ---- Coming-soon empty state ---- */
.course-card.soon {
    background: var(--surface);
}

.course-card.soon .course-icon {
    filter: grayscale(0.35);
    opacity: 0.9;
}

.soon-note {
    margin: auto 0 20px;
    padding: 16px;
    border: 1px dashed var(--border-strong);
    border-radius: var(--radius);
    color: var(--text-tertiary);
    font-size: 14px;
    text-align: center;
    background: var(--surface-2);
}

button.ghost {
    background: transparent;
    border: 1px solid var(--border-strong);
    color: var(--text-primary);
}

button.ghost:hover {
    border-color: var(--accent);
    box-shadow: none;
    background: var(--accent-soft);
}

button:disabled {
    background: var(--surface-2);
    color: var(--text-tertiary);
    cursor: not-allowed;
    border: 1px solid var(--border);
}

button:disabled:hover {
    transform: none;
    box-shadow: none;
}

@media (max-width: 700px) {
    .courses { padding: 20px 6% 50px; }
    .learn-hero { padding: 50px 20px 30px; }
}

/* ---- Empty state (coming-soon course pages) ---- */
.empty-state {
    max-width: 520px;
    margin: 10px auto 70px;
    text-align: center;
    padding: 0 20px;
}

.empty-state svg {
    width: 200px;
    height: auto;
    margin-bottom: 22px;
}

.empty-state h3 {
    font-size: 24px;
    margin-bottom: 10px;
}

.empty-state p {
    color: var(--text-secondary);
    margin-bottom: 26px;
    line-height: 1.6;
}

/* ---- Course page: header progress + lesson card states ---- */
.course-header-progress {
    max-width: 420px;
    margin: 22px auto 20px;
}

.lessons .lesson-card.is-complete {
    border-color: color-mix(in srgb, var(--success) 45%, var(--border));
}

.lessons .lesson-card.is-complete::after {
    content: "\2713 Completed";
    position: absolute;
    top: 14px;
    right: 14px;
    font-size: 12px;
    font-weight: 700;
    color: var(--success);
    background: color-mix(in srgb, var(--success) 16%, transparent);
    padding: 3px 9px;
    border-radius: var(--radius-pill);
}

.lessons .lesson-card.is-current {
    border-color: var(--accent);
    box-shadow: 0 0 0 1px var(--accent), var(--shadow-glow);
}

.lessons .lesson-card.is-current::after {
    content: "Up next";
    position: absolute;
    top: 14px;
    right: 14px;
    font-size: 12px;
    font-weight: 700;
    color: var(--accent-contrast);
    background: var(--accent);
    padding: 3px 9px;
    border-radius: var(--radius-pill);
}

.lessons .lesson-card {
    position: relative;
}


/* ---- Course page section titles ---- */
.course-section-title {
    max-width: var(--maxw);
    margin: 40px auto 0;
    padding: 0 30px;
    font-size: 22px;
}