.materials-section{background:linear-gradient(135deg,#f8fafc 0%,#f1f5f9 100%);padding:60px 0}.materials-container{max-width:1200px;margin:0 auto;padding:0 20px}.tab-navigation{background:#fff;border-radius:50px;flex-wrap:wrap;justify-content:center;gap:10px;margin-bottom:40px;padding:15px;display:flex;box-shadow:0 5px 20px #0000000d}.tab-btn{color:#64748b;cursor:pointer;background:0 0;border:none;border-radius:40px;align-items:center;gap:10px;padding:12px 28px;font-size:1rem;font-weight:600;transition:all .3s;display:flex}.tab-btn i{font-size:1.1rem}.tab-btn:hover{color:#1e293b;background:#f1f5f9}.tab-btn.active{color:#fff;background:linear-gradient(135deg,#dc2626,#b91c1c);box-shadow:0 5px 15px #dc26264d}.tab-content{animation:.5s fadeIn;display:none}.tab-content.active{display:block}@keyframes fadeIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.content-header{text-align:center;margin-bottom:30px}.content-header h2{color:#1e293b;margin-bottom:10px;font-size:2rem}.content-header h2 i{color:#dc2626;margin-right:15px}.content-header p{color:#64748b;font-size:1.1rem}.section-subtitle{color:#1e293b;border-bottom:3px solid #dc2626;margin:30px 0 20px;padding-bottom:10px;font-size:1.5rem;display:inline-block}.section-subtitle i{color:#dc2626;margin-right:10px}.files-grid{grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:25px;margin-bottom:30px;display:grid}.file-card{text-align:center;background:#fff;border:1px solid #e2e8f0;border-radius:20px;padding:25px;transition:all .3s;box-shadow:0 10px 25px #0000000d}.file-card:hover{border-color:#dc2626;transform:translateY(-5px);box-shadow:0 20px 35px #0000001a}.file-icon{color:#dc2626;background:linear-gradient(135deg,#fee2e2,#fecaca);border-radius:20px;justify-content:center;align-items:center;width:70px;height:70px;margin:0 auto 20px;font-size:2rem;display:flex}.file-image{object-fit:contain;border-radius:20px;width:140px;height:140px;margin:0 auto 22px;transition:transform .35s cubic-bezier(.2,.8,.2,1),box-shadow .35s,border-radius .35s;display:block}.file-card h3{color:#1e293b;margin-bottom:8px;font-size:1.2rem}.file-card p{color:#64748b;margin-bottom:20px;font-size:.85rem}.file-actions{justify-content:center;gap:12px;display:flex}.btn-preview,.btn-download{border-radius:25px;padding:8px 20px;font-size:.85rem;font-weight:600;text-decoration:none;transition:all .3s}.btn-preview{color:#3b82f6;background:#f1f5f9}.btn-preview:hover{color:#fff;background:#3b82f6}.btn-download{color:#fff;background:#dc2626}.btn-download:hover{background:#b91c1c;transform:translateY(-2px)}.placeholder-card{opacity:.7;background:#f8fafc}.placeholder-card .btn-preview{color:#94a3b8;cursor:default;background:#e2e8f0}.placeholder-card .btn-preview:hover{color:#94a3b8;background:#e2e8f0;transform:none}.exam-section{margin-bottom:40px}@media (width<=768px){.materials-section{padding:40px 0}.tab-navigation{border-radius:20px;padding:10px}.tab-btn{padding:8px 16px;font-size:.85rem}.tab-btn span{display:none}.tab-btn i{margin:0;font-size:1.2rem}.content-header h2{font-size:1.5rem}.files-grid{grid-template-columns:1fr}.section-subtitle{font-size:1.2rem}}.coming-soon{text-align:center;background:#fff;border-radius:24px;margin:20px 0;padding:80px 40px;box-shadow:0 10px 30px #0000000d}.coming-soon-icon{color:#d97706;background:linear-gradient(135deg,#fef3c7,#fde68a);border-radius:50%;justify-content:center;align-items:center;width:80px;height:80px;margin:0 auto 20px;font-size:2.5rem;display:flex}.coming-soon h3{color:#1e293b;margin-bottom:10px;font-size:1.8rem}.coming-soon p{color:#64748b;font-size:1.1rem}.folder-embed{background:#fff;border-radius:16px;overflow:hidden;box-shadow:0 5px 20px #00000014}.folder-embed iframe{display:block}.deutschcom-card{border-color:#dbeafe}.deutschcom-card:hover{border-color:#3b82f6}.deutschcom-card .file-icon{color:#3b82f6;background:linear-gradient(135deg,#dbeafe,#bfdbfe)}.deutschcom-card .file-image{filter:drop-shadow(0 2px 8px #3b82f626);transition:transform .3s}.deutschcom-card:hover .file-image{transform:scale(1.05)}.deutschcom-card .btn-download{color:#fff;background:#3b82f6}.deutschcom-card .btn-download:hover{background:#2563eb;transform:translateY(-2px)}.testbank-card{background:linear-gradient(135deg,#eef2ff 0%,#f8fafc 100%);border:1px solid #c7d2fe}.testbank-card:hover{border-color:#6366f1;box-shadow:0 20px 40px #6366f129}.testbank-card h3{color:#3730a3}.testbank-card p{color:#4338ca}.testbank-card .btn-preview{color:#4338ca;background:#eef2ff}.testbank-card .btn-preview:hover{color:#fff;background:#6366f1}.testbank-card .btn-download{background:#4338ca}.testbank-card .btn-download:hover{background:#3730a3}.oldexam-card{color:#fff;background:linear-gradient(135deg,#0b1020 0%,#5b21b6 100%);border:1px solid #ffd7001f;border-radius:20px;padding:25px;transition:transform .35s cubic-bezier(.2,.8,.2,1),box-shadow .35s,border-color .35s;box-shadow:0 25px 60px #5b21b624}.oldexam-card:hover{border-color:#ffd70052;transform:translateY(-10px)scale(1.02);box-shadow:0 50px 110px #5b21b638}.oldexam-card .file-image{filter:drop-shadow(0 10px 30px #5b21b62e);border-radius:18px;width:160px;height:160px;margin-bottom:18px;transition:transform .45s cubic-bezier(.2,.8,.2,1)}.oldexam-card:hover .file-image{transform:translateY(-12px)scale(1.12)}.oldexam-card h3{color:#fff}.oldexam-card p{color:#ffffffe6}.oldexam-card .btn-preview{color:#fff;background:#ffffff1f}.oldexam-card .btn-preview:hover{background:#ffffff3d}.oldexam-card .btn-download{color:#111;background:#ffd54f}.oldexam-card .btn-download:hover{background:#ffca28;transform:translateY(-2px)}.file-card .file-image{filter:drop-shadow(0 4px 14px #0206170f)}.file-card:hover .file-image{transform:translateY(-8px)scale(1.08);box-shadow:0 30px 50px #0206171f}.finalrevision-grid{justify-items:center;margin-top:30px}.finalrevision-card{color:#f8fafc;text-align:center;background:linear-gradient(135deg,#0f172a,#2563eb);border:1px solid #ffffff3d;border-radius:30px;width:min(560px,100%);max-width:600px;margin:40px auto;padding:35px;position:relative;overflow:hidden;box-shadow:0 30px 70px #52505bd5}.finalrevision-card:before{content:"";pointer-events:none;background:radial-gradient(circle at 0 0,#ffffff2e,#0000 35%),radial-gradient(circle at 100% 100%,#ffffff1f,#0000 20%);position:absolute;inset:0}.finalrevision-card .file-image{border-radius:26px;width:220px;height:220px;margin-bottom:22px;transform:translateZ(0)}.finalrevision-card h3{color:#eff6ff;margin-bottom:10px;font-size:2rem}.finalrevision-card p{color:#e2e8f0eb;margin-bottom:24px;font-size:.95rem;line-height:1.6}.finalrevision-card .btn-preview,.finalrevision-card .btn-download{border-radius:999px;padding:12px 26px;font-size:.95rem}.finalrevision-card .btn-preview{color:#e0f2fe;background:#ffffff2e}.finalrevision-card .btn-preview:hover{color:#fff;background:#ffffff52}.finalrevision-card .btn-download{color:#1f2937;background:#facc15}.finalrevision-card .btn-download:hover{background:#eab308;transform:translateY(-2px)}.finalrevision-card:hover{transform:translateY(-8px)scale(1.01);box-shadow:0 40px 90px #2563eb47}.finalrevision-card:hover .file-image{transform:translateY(-12px)scale(1.12)}.other-section{border-top:1px solid #94a3b840;margin-top:50px;padding-top:10px}.other-section:first-child{border-top:none;margin-top:0;padding-top:0}.other-card{background:linear-gradient(135deg,#fdf4ff 0%,#eef2ff 100%);border:1px solid #c4b5fd}.other-card:hover{border-color:#7c3aed;box-shadow:0 20px 40px #7c3aed1f}.other-card .file-image{border-radius:18px;width:110px;height:110px;margin-bottom:18px}.other-card h3{color:#5b21b6}.other-card p{color:#6d28d9}.other-card .btn-preview{color:#7c3aed;background:#ede9fe}.other-card .btn-preview:hover{color:#fff;background:#7c3aed}.other-card .btn-download{background:#8b5cf6}.other-card .btn-download:hover{background:#7c3aed}@media (width<=768px){.coming-soon{padding:50px 20px}.coming-soon h3{font-size:1.4rem}.folder-embed iframe{height:400px}}