:root {
    --eg-teal-deep: #134e4a;
    --eg-teal-mid: #0f766e;
    --eg-teal-accent: #0d9488;
    --eg-muted: #64748b;
    --eg-bg: #f0fdfa;
}
* { box-sizing: border-box; }
.egitim-body {
    margin: 0;
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    background: var(--eg-bg);
    color: #0f172a;
    line-height: 1.55;
    min-height: 100vh;
}
.eg-header {
    background: linear-gradient(135deg, var(--eg-teal-deep), var(--eg-teal-accent));
    color: #fff;
    padding: 1rem 1.25rem;
    box-shadow: 0 8px 32px rgba(19,78,74,0.18);
}
.eg-header-inner {
    max-width: 960px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
}
.eg-brand { font-weight: 800; letter-spacing: -0.02em; font-size: 1.35rem; }
.eg-tag { font-size: 0.7rem; opacity: 0.9; letter-spacing: 0.06em; text-transform: uppercase; }
.eg-shell { max-width: 960px; margin: 0 auto; padding: 1.5rem 1rem 4rem; }
.eg-card {
    background: #fff;
    border-radius: 12px;
    border: 1px solid #ccfbf1;
    padding: 1.25rem 1.35rem;
    margin-bottom: 1rem;
    box-shadow: 0 12px 30px rgba(15,118,110,0.06);
}
.eg-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 0.45rem 0.95rem;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 600;
    text-decoration: none;
}
.eg-btn-primary {
    background: var(--eg-teal-accent);
    color: #fff;
}
.eg-btn-ghost {
    background: rgba(255,255,255,0.14);
    color: #fff;
    border: 1px solid rgba(255,255,255,0.35);
}
.eg-form label { display: block; font-size: 0.82rem; color: var(--eg-muted); margin-bottom: 4px; }
.eg-form input {
    width: 100%; max-width: 360px; padding: 0.55rem 0.65rem;
    border: 1px solid #cbd5e1; border-radius: 8px; margin-bottom: 12px;
}
.eg-msg { padding: 10px 12px; border-radius: 8px; font-size: 0.88rem; margin-bottom: 12px; }
.eg-msg-err { background: #fef2f2; color: #b91c1c; border: 1px solid #fecaca; }
.course-list { display: grid; gap: 10px; }
.course-row {
    padding: 12px 14px;
    border-radius: 10px;
    border: 1px solid #e2e8f0;
    display: flex; justify-content: space-between; align-items: flex-start;
    gap: 10px;
    flex-wrap: wrap;
}
.course-row h3 { margin: 0 0 4px; font-size: 1rem; }
.course-row span.badge {
    font-size: 11px;
    padding: 2px 8px;
    border-radius: 999px;
    background: #ecfeff;
    color: #0e7490;
    font-weight: 600;
}
.lesson-html { font-size: 15px; }
.lesson-html h3 { margin-top: 1.25rem; color: var(--eg-teal-deep); }
.lesson-html ul { padding-left: 1.25rem; }
footer.eg-ft {
    text-align: center;
    padding: 1.25rem;
    font-size: 12px;
    color: var(--eg-muted);
    border-top: 1px solid #cbd5e1;
    margin-top: 2rem;
}
.eg-lesson-meta { font-size: 0.9rem; color: var(--eg-muted); margin: 8px 0 12px; }
.eg-video-wrap { margin: 12px 0 20px; }
.eg-video-16x9 {
    position: relative;
    width: 100%;
    padding-bottom: 56.25%;
    border-radius: 10px;
    overflow: hidden;
    background: #0f172a;
}
.eg-video-16x9 iframe {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    border: 0;
}
.eg-native-video {
    width: 100%;
    max-height: 420px;
    border-radius: 10px;
    background: #000;
}
.eg-materials { margin-bottom: 1rem; }
.eg-mat-list { margin: 0; padding-left: 1.2rem; }
.eg-mat-type { font-size: 0.8rem; color: var(--eg-muted); }
.eg-rating-block { margin: 12px 0 20px; padding: 12px 0; border-top: 1px solid #e2e8f0; border-bottom: 1px solid #e2e8f0; }
.eg-rate-row { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.eg-star {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: #94a3b8;
    line-height: 1;
    padding: 2px 4px;
}
.eg-star-on { color: #f59e0b; }
.eg-star:hover { color: #d97706; }
.eg-small-muted { font-size: 0.82rem; color: var(--eg-muted); }
.eg-comment { padding: 10px 0; border-bottom: 1px solid #f1f5f9; }
.eg-comment-head { font-size: 0.88rem; margin-bottom: 4px; }
.eg-comment-body { font-size: 0.95rem; white-space: pre-wrap; word-break: break-word; }
.eg-comment-form { margin-top: 16px; }
.eg-comment-form textarea {
    width: 100%;
    max-width: 520px;
    padding: 8px 10px;
    border-radius: 8px;
    border: 1px solid #cbd5e1;
    margin: 6px 0 10px;
    font-family: inherit;
}
.lesson-html table { border-collapse: collapse; width: 100%; margin: 1rem 0; font-size: 14px; }
.lesson-html table th, .lesson-html table td { border: 1px solid #cbd5e1; padding: 8px; }
.lesson-html img { max-width: 100%; height: auto; border-radius: 8px; }