:root{ --pb-card-blue:#0ea5e9;--pb-card-purple:#8b5cf6;--pb-card-amber:#f59e0b;--pb-status-active:#10b981;--pb-status-expired:#ef4444;--pb-status-completed:#8b5cf6;--pb-status-inactive:#6b7280;--pb-card-bg:#ffffff;--pb-card-border:#e5e7eb;--pb-card-text:#1f2937;--pb-card-text-light:#6b7280;--pb-card-hover-shadow:0 20px 25px -5px rgba(0,0,0,0.1),0 10px 10px -5px rgba(0,0,0,0.04)} .pb-course-cards{ display:grid;gap:24px;margin:40px 0} .pb-course-cards.pb-layout-grid{ grid-template-columns:repeat(auto-fill,minmax(320px,1fr))} .pb-course-cards.pb-layout-grid.pb-cols-2{ grid-template-columns:repeat(2,1fr)} .pb-course-cards.pb-layout-grid.pb-cols-3{ grid-template-columns:repeat(3,1fr)} .pb-course-cards.pb-layout-grid.pb-cols-4{ grid-template-columns:repeat(4,1fr)} .pb-course-cards.pb-layout-list{ grid-template-columns:1fr;max-width:800px;margin-left:auto;margin-right:auto} @media (max-width:1200px){ .pb-course-cards.pb-layout-grid.pb-cols-4{ grid-template-columns:repeat(3,1fr)} } @media (max-width:968px){ .pb-course-cards.pb-layout-grid.pb-cols-3,.pb-course-cards.pb-layout-grid.pb-cols-4{ grid-template-columns:repeat(2,1fr)} } @media (max-width:640px){ .pb-course-cards.pb-layout-grid{ grid-template-columns:1fr} } .pb-course-card{ background:var(--pb-card-bg);border:1px solid var(--pb-card-border);border-radius:12px;overflow:hidden;transition:transform 0.2s ease,box-shadow 0.2s ease;display:flex;flex-direction:column} .pb-course-card:hover{ transform:translateY(-4px);box-shadow:var(--pb-card-hover-shadow)} .pb-card-header{ position:relative;height:140px;overflow:hidden} .pb-card-gradient{ position:absolute;inset:0;background:linear-gradient(135deg,var(--pb-card-blue) 0%,var(--pb-card-purple) 50%,var(--pb-card-amber) 100%);opacity:0.9;transition:opacity 0.3s ease} .pb-course-card:hover .pb-card-gradient{ opacity:1} .pb-card-icon{ position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);font-size:48px;filter:drop-shadow(0 4px 6px rgba(0,0,0,0.1));animation:pulse 3s cubic-bezier(0.4,0,0.6,1) infinite} @keyframes pulse{ 0%,100%{ opacity:1;transform:translate(-50%,-50%) scale(1)} 50%{ opacity:0.8;transform:translate(-50%,-50%) scale(1.05)} } .pb-card-body{ padding:20px;flex:1;display:flex;flex-direction:column;gap:16px} .pb-card-meta{ display:flex;align-items:center;gap:8px;font-size:13px;font-weight:500} .pb-card-status{ display:inline-flex;align-items:center;padding:4px 12px;border-radius:12px;font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:0.5px} .pb-card-status.pb-status-active{ background:rgba(16,185,129,0.1);color:var(--pb-status-active)} .pb-card-status.pb-status-expired{ background:rgba(239,68,68,0.1);color:var(--pb-status-expired)} .pb-card-status.pb-status-completed{ background:rgba(139,92,246,0.1);color:var(--pb-status-completed)} .pb-card-status.pb-status-inactive{ background:rgba(107,114,128,0.1);color:var(--pb-status-inactive)} .pb-card-expire{ color:var(--pb-card-text-light);font-size:12px;margin-left:auto} .pb-card-title{ font-size:20px;font-weight:700;line-height:1.4;color:var(--pb-card-text);margin:0;font-family:'Georgia','Noto Serif SC',serif} .pb-card-stats{ display:flex;gap:24px} .pb-stat{ display:flex;align-items:center;gap:6px;font-size:14px} .pb-stat-icon{ font-size:18px;opacity:0.8} .pb-stat-value{ font-weight:700;color:var(--pb-card-text)} .pb-stat-label{ color:var(--pb-card-text-light);font-size:12px} .pb-card-progress{ margin-top:auto} .pb-progress-bar{ height:6px;background:#e5e7eb;border-radius:3px;overflow:hidden;position:relative} .pb-progress-fill{ height:100%;background:linear-gradient(90deg,var(--pb-card-blue) 0%,var(--pb-card-purple) 50%,var(--pb-card-amber) 100%);border-radius:3px;transition:width 0.6s cubic-bezier(0.4,0,0.2,1);position:relative} .pb-progress-fill::after{ content:'';position:absolute;top:0;left:0;right:0;bottom:0;background:linear-gradient(90deg,transparent,rgba(255,255,255,0.3),transparent);animation:shimmer 2s infinite} @keyframes shimmer{ 0%{ transform:translateX(-100%)} 100%{ transform:translateX(100%)} } .pb-card-footer{ padding:16px 20px;border-top:1px solid var(--pb-card-border)} .pb-card-button{ display:block;width:100%;padding:12px 20px;background:linear-gradient(135deg,var(--pb-card-blue) 0%,var(--pb-card-purple) 100%);color:#ffffff;text-align:center;font-weight:600;font-size:15px;border-radius:8px;text-decoration:none;transition:all 0.2s ease;position:relative;overflow:hidden} .pb-card-button::before{ content:'';position:absolute;inset:0;background:linear-gradient(135deg,var(--pb-card-purple) 0%,var(--pb-card-amber) 100%);opacity:0;transition:opacity 0.2s ease} .pb-card-button:hover{ transform:translateY(-2px);box-shadow:0 10px 15px -3px rgba(139,92,246,0.3)} .pb-card-button:hover::before{ opacity:1} .pb-card-button span{ position:relative;z-index:1} .pb-course-cards-empty{ text-align:center;padding:60px 20px;background:var(--pb-card-bg);border:2px dashed var(--pb-card-border);border-radius:12px;margin:40px 0} .pb-empty-icon{ font-size:64px;margin-bottom:16px;opacity:0.5;animation:float 3s ease-in-out infinite} @keyframes float{ 0%,100%{ transform:translateY(0)} 50%{ transform:translateY(-10px)} } .pb-course-cards-empty h3{ font-size:24px;font-weight:700;color:var(--pb-card-text);margin:0 0 8px 0} .pb-course-cards-empty p{ color:var(--pb-card-text-light);font-size:16px;margin:0} .pb-notice{ padding:16px 20px;background:rgba(14,165,233,0.1);border-left:4px solid var(--pb-card-blue);border-radius:8px;color:var(--pb-card-text);font-size:15px;margin:20px 0} .pb-course-card--catalog .pb-card-catalog-label{ position:absolute;top:12px;left:16px;font-family:'SFMono-Regular','Consolas',monospace;font-size:10px;font-weight:700;letter-spacing:0.12em;color:rgba(255,255,255,0.75);text-transform:uppercase} .pb-course-card--catalog .pb-card-header{ position:relative} .pb-card-desc{ font-size:13.5px;line-height:1.6;color:var(--pb-card-text-light);margin:8px 0 12px} .pb-card-price{ display:inline-block;font-size:17px;font-weight:700;color:var(--pb-card-text);background:rgba(14,165,233,0.1);border:1px solid rgba(14,165,233,0.25);padding:4px 12px;border-radius:6px;letter-spacing:0.02em;margin-top:4px} .pb-card-button--cta{ background:linear-gradient(135deg,#0ea5e9 0%,#6366f1 100%)} .pb-card-button--cta:hover{ background:linear-gradient(135deg,#0284c7 0%,#4f46e5 100%)} @media (prefers-color-scheme:dark){ :root{ --pb-card-bg:#1f2937;--pb-card-border:#374151;--pb-card-text:#f9fafb;--pb-card-text-light:#9ca3af} .pb-card-gradient{ opacity:0.8} .pb-course-card:hover .pb-card-gradient{ opacity:0.95} .pb-progress-bar{ background:#374151} }