:root{--bg:#f7f9fc;--panel:#fff;--line:#e7edf5;--text:#1f2937;--muted:#6b7280;--blue:#1a73e8;--blue2:#0b57d0;--green:#16a34a;--red:#dc2626;--shadow:0 12px 30px rgba(31,41,55,.08)}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:'Sansation','Segoe UI',Arial,sans-serif}a{color:var(--blue);text-decoration:none}.topbar{height:68px;background:rgba(255,255,255,.9);backdrop-filter:blur(14px);border-bottom:1px solid var(--line);display:flex;align-items:center;gap:22px;padding:0 24px;position:sticky;top:0;z-index:20}.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:22px;color:var(--text)}.brand-icon{width:38px;height:38px;border-radius:14px;background:linear-gradient(135deg,#4285f4,#34a853);display:grid;place-items:center;color:white}.nav-main{display:flex;gap:6px;flex:1}.nav-main a,.nav-user a{padding:10px 13px;border-radius:999px;color:#334155;font-weight:700}.nav-main a:hover,.nav-user a:hover{background:#edf4ff;color:var(--blue2)}.nav-user{display:flex;gap:8px;align-items:center}.logout-link{background:#fef2f2;color:#991b1b!important}.content{max-width:1280px;margin:auto;padding:28px}.page-head{display:flex;justify-content:space-between;gap:16px;align-items:center;margin-bottom:20px}.title{font-size:34px;margin:0}.subtitle{color:var(--muted);margin:6px 0 0}.btn{display:inline-flex;gap:8px;align-items:center;border:0;border-radius:999px;padding:11px 16px;background:var(--blue);color:#fff!important;font-weight:700;cursor:pointer;box-shadow:0 8px 18px rgba(26,115,232,.18)}.btn.secondary{background:#eef2ff;color:#3730a3!important;box-shadow:none}.btn.red{background:#dc2626}.btn.gray{background:#f1f5f9;color:#334155!important;box-shadow:none}.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;margin-bottom:24px}.card,.panel{background:var(--panel);border:1px solid var(--line);border-radius:24px;padding:20px;box-shadow:var(--shadow)}.card h3{margin:0 0 8px;color:var(--muted);font-size:14px;text-transform:uppercase;letter-spacing:.04em}.card p{margin:0;font-size:28px;font-weight:700}.flash{padding:14px 18px;border-radius:18px;margin-bottom:16px;font-weight:700}.flash.success{background:#dcfce7;color:#166534}.flash.error{background:#fee2e2;color:#991b1b}.flash.info{background:#dbeafe;color:#1e40af}.flash.warning{background:#fef3c7;color:#92400e}.file-toolbar{display:flex;gap:12px;align-items:center;margin-bottom:18px;flex-wrap:wrap}.search{flex:1;min-width:240px;background:#fff;border:1px solid var(--line);border-radius:999px;padding:12px 16px;font-family:inherit}.dropzone{border:2px dashed #bfd7ff;background:linear-gradient(180deg,#fff,#f5f9ff);border-radius:24px;padding:24px;text-align:center;color:#64748b;cursor:pointer;margin-bottom:20px}.dropzone.dragover{border-color:var(--blue);background:#eaf2ff}.file-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:16px}.file-item{background:#fff;border:1px solid var(--line);border-radius:24px;padding:18px;box-shadow:var(--shadow);min-height:190px;display:flex;flex-direction:column;justify-content:space-between}.file-icon{font-size:42px;color:var(--blue);margin-bottom:12px}.file-name{font-weight:700;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.file-meta{color:var(--muted);font-size:13px;margin-top:4px}.file-actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}.icon-btn{width:36px;height:36px;border-radius:12px;background:#f1f5f9;display:grid;place-items:center;color:#334155}.icon-btn:hover{background:#e0edff;color:var(--blue)}form.box{background:#fff;border:1px solid var(--line);border-radius:24px;padding:24px;max-width:640px;box-shadow:var(--shadow)}.grid2{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px}.form-group{margin-bottom:16px}label{display:block;font-weight:700;margin-bottom:7px}input,select,textarea{width:100%;padding:12px 14px;border:1px solid #d7deea;border-radius:14px;font:inherit;background:#fff}textarea{min-height:140px}.table{width:100%;border-collapse:separate;border-spacing:0 8px}.table th{text-align:left;color:var(--muted);font-size:13px}.table td,.table th{padding:12px;background:#fff}.table tr td:first-child,.table tr th:first-child{border-radius:14px 0 0 14px}.table tr td:last-child,.table tr th:last-child{border-radius:0 14px 14px 0}.editor-shell{background:#fff;border:1px solid var(--line);border-radius:24px;box-shadow:var(--shadow);overflow:hidden}.editor-top{display:flex;justify-content:space-between;align-items:center;padding:14px 18px;border-bottom:1px solid var(--line);background:#fbfdff}.editor-body{padding:18px}.slide-card{border:1px solid var(--line);border-radius:20px;padding:18px;margin-bottom:14px;background:linear-gradient(135deg,#eef6ff,#fff)}.form-question{border:1px solid var(--line);border-radius:18px;padding:14px;margin-bottom:12px;background:#fafcff}.preview-frame{background:#fff;border:1px solid var(--line);border-radius:24px;padding:18px;box-shadow:var(--shadow)}.preview-frame img,.preview-frame video{max-width:100%;max-height:70vh;border-radius:18px}.preview-frame embed{width:100%;height:75vh;border-radius:18px}@media(max-width:900px){.topbar{height:auto;align-items:flex-start;flex-direction:column;padding:14px}.nav-main,.nav-user{flex-wrap:wrap}.content{padding:18px}.page-head{align-items:flex-start;flex-direction:column}}

.pro-editor{background:#fff;border:1px solid #e5e7eb;border-radius:18px;overflow:hidden;box-shadow:0 12px 35px rgba(15,23,42,.08)}
.toolbar{display:flex;gap:8px;align-items:center;flex-wrap:wrap;padding:12px;background:#f8fafc;border-bottom:1px solid #e5e7eb}
.toolbar button,.toolbar select,.toolbar input{border:1px solid #d1d5db;background:#fff;border-radius:10px;padding:8px 10px;font-family:inherit}
.toolbar button:hover{background:#eff6ff;border-color:#93c5fd}
#saveStatus{margin-left:auto;color:#16a34a;font-weight:700}
.doc-canvas{max-width:900px;min-height:720px;margin:28px auto;padding:56px;background:#fff;border:1px solid #e5e7eb;border-radius:12px;box-shadow:0 18px 55px rgba(0,0,0,.10);line-height:1.7;outline:none}
.sheet-canvas{overflow:auto;height:70vh;background:#f1f5f9;padding:16px}.sheet-table{border-collapse:collapse;background:white;min-width:900px}.sheet-table th{background:#f8fafc;color:#64748b;font-weight:700;text-align:center;position:sticky;top:0;z-index:1}.sheet-table th,.sheet-table td{border:1px solid #dbe3ef;min-width:110px;height:34px;padding:6px}.sheet-table td{outline:none}.sheet-table td:focus{box-shadow:inset 0 0 0 2px #0b57d0;background:#eff6ff}
.slides-layout{display:grid;grid-template-columns:220px 1fr 250px;height:72vh;background:#f1f5f9}.slide-list{border-right:1px solid #dbe3ef;padding:12px;overflow:auto;background:#fff}.slide-thumb{display:block;width:100%;text-align:left;border:1px solid #dbe3ef;background:#fff;border-radius:12px;margin-bottom:10px;padding:12px;cursor:pointer}.slide-thumb.active{border-color:#0b57d0;box-shadow:0 0 0 3px rgba(11,87,208,.12)}.slide-thumb span{display:block;color:#64748b;font-size:12px;margin-top:6px}.slide-work{display:flex;align-items:center;justify-content:center;padding:30px}.slide-canvas{width:min(960px,100%);aspect-ratio:16/9;border:4px solid #0b57d0;border-radius:22px;box-shadow:0 20px 60px rgba(15,23,42,.16);padding:55px;display:flex;flex-direction:column;justify-content:center;gap:18px;background:#fff}.slide-canvas input,.slide-canvas textarea{border:0;background:transparent;font-family:inherit;outline:none;color:inherit}.slide-title-input{font-size:46px;font-weight:800}.slide-subtitle-input{font-size:24px;font-weight:700}.slide-body-input{font-size:24px;min-height:170px;resize:none}.slide-props{background:#fff;border-left:1px solid #dbe3ef;padding:16px}.slide-props label{display:block;margin-bottom:16px}
.present-overlay{position:fixed;inset:0;background:#020617;z-index:9999;display:flex;align-items:center;justify-content:center}.present-slide{width:90vw;aspect-ratio:16/9;border:5px solid #0b57d0;border-radius:30px;padding:80px;display:flex;flex-direction:column;justify-content:center;box-shadow:0 0 80px rgba(255,255,255,.1)}.present-slide h1{margin:0 0 20px}.present-slide h2{font-size:34px}.present-slide p{font-size:30px;line-height:1.45}.present-slide small{position:absolute;right:60px;bottom:40px;color:#94a3b8}.anim-fade{animation:fadeIn .5s ease}.anim-rise{animation:riseIn .55s ease}.anim-zoom{animation:zoomIn .45s ease}@keyframes fadeIn{from{opacity:0}to{opacity:1}}@keyframes riseIn{from{opacity:0;transform:translateY(25px)}to{opacity:1;transform:none}}@keyframes zoomIn{from{opacity:0;transform:scale(.93)}to{opacity:1;transform:scale(1)}}
.forms-layout{display:grid;grid-template-columns:1fr 420px;gap:18px;background:#f1f5f9;padding:18px}.form-builder,.form-preview{background:#fff;border:1px solid #e5e7eb;border-radius:18px;padding:22px}.form-title-input{font-size:34px;font-weight:800;border:0;border-bottom:2px solid #e5e7eb;width:100%;padding:10px;outline:none}.form-desc-input{width:100%;min-height:80px;margin-top:12px;border:1px solid #e5e7eb;border-radius:12px;padding:12px}.question-card{border:1px solid #dbe3ef;border-radius:16px;padding:16px;margin-top:16px;background:#fbfdff}.q-head{display:flex;justify-content:space-between;gap:8px}.question-card input,.question-card select,.question-card textarea,.form-card input,.form-card textarea{width:100%;border:1px solid #d1d5db;border-radius:10px;padding:10px;margin-top:8px;margin-bottom:10px}.q-options{min-height:75px}.form-card{border-top:8px solid #0b57d0}.form-card h2{margin-top:0;font-size:28px}.form-card label{display:block;font-weight:700;margin-top:18px}
.inline-user-form{display:contents}.user-table textarea{min-width:180px;min-height:54px}.user-table input[type=number]{max-width:150px}
@media(max-width:900px){.slides-layout,.forms-layout{grid-template-columns:1fr;height:auto}.slide-list,.slide-props{border:0}.doc-canvas{padding:26px}.toolbar{position:sticky;top:0;z-index:20}}