.course-card{background:#fff;border-radius:10px;overflow:hidden;box-shadow:0 4px 6px rgba(0,0,0,.1);transition:all .3s ease;display:flex;flex-direction:column}.course-card:hover{transform:translateY(-5px);box-shadow:0 8px 15px rgba(0,0,0,.2)}.course-header{padding:15px;background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);color:white}.platform-badge{display:inline-block;background:rgba(255,255,255,.3);padding:4px 12px;border-radius:20px;font-size:.8em;font-weight:600;margin-bottom:10px}.course-title{font-size:1.1em;font-weight:600;line-height:1.4}.course-body{padding:15px;flex-grow:1;display:flex;flex-direction:column}.course-meta{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:15px;font-size:.9em}.meta-item{display:flex;flex-direction:column}.meta-label{color:#999;font-size:.85em;text-transform:uppercase;letter-spacing:.5px;margin-bottom:3px}.meta-value{color:#333;font-weight:600}.rating{color:#f59e0b;font-weight:600}.category-tag{display:inline-block;background:#e0e7ff;color:#667eea;padding:4px 10px;border-radius:15px;font-size:.8em;font-weight:500;margin-bottom:10px}.trend-badge{display:inline-block;padding:4px 10px;border-radius:15px;font-size:.8em;font-weight:600;margin-bottom:10px}.trend-badge.trending{background:#dbeafe;color:#0369a1}.trend-badge.best-selling{background:#dcfce7;color:#15803d}.trend-badge.most-expensive{background:#fce7f3;color:#be185d}.trend-badge.new{background:#fef3c7;color:#d97706}.course-footer{padding-top:10px;border-top:1px solid #eee;display:flex;justify-content:space-between;align-items:center;margin-top:auto}.price{font-size:1.2em;font-weight:700;color:#667eea}.cta-btn{padding:8px 16px;background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);color:white;text-decoration:none;border-radius:5px;font-size:.9em;font-weight:600;transition:all .3s ease}.cta-btn:hover{opacity:.9;transform:scale(1.05);box-shadow:0 2px 5px rgba(0,0,0,.2)}.enrollment{color:#666;font-size:.85em}.no-results{text-align:center;padding:60px 20px;color:#666;background:#fff;border-radius:10px;grid-column:1/-1}.no-results h3{font-size:1.5em;margin-bottom:10px}