:root{--bg: var(--tg-theme-bg-color, #ffffff);--fg: var(--tg-theme-text-color, #2c3e50);--muted: var(--tg-theme-hint-color, #7f8c8d);--primary: var(--tg-theme-button-color, #3498db);--primary-hover: var(--tg-theme-button-color, #2980b9);--danger: #e74c3c;--card: var(--tg-theme-secondary-bg-color, #ffffff);--border: var(--tg-theme-hint-color, #ecf0f1);--shadow: 0 2px 10px rgba(0, 0, 0, .1);--shadow-hover: 0 4px 20px rgba(0, 0, 0, .15)}*{box-sizing:border-box}html,body{height:100%}body{margin:0;background:var(--bg);color:var(--fg);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;line-height:1.6}#app{display:flex;flex-direction:column;height:100vh;overflow:hidden}.app-header,.app-footer{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;background:var(--card);border-bottom:1px solid var(--border);box-shadow:0 1px 3px #0000000d;position:relative;min-height:60px}.app-footer{border-top:1px solid var(--border);border-bottom:none}.title{font-size:18px;font-weight:600;margin:0;position:absolute;left:50%;transform:translate(-50%);text-align:center;color:var(--fg);width:calc(100% - 140px);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.content{flex:1;overflow:auto;padding:20px;background:var(--bg)}.screen{display:none}.screen.active{display:block}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:20px;width:100%}.gallery-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:16px;width:100%}.card{background:var(--card);border:1px solid var(--border);border-radius:16px;overflow:hidden;display:flex;flex-direction:column;box-shadow:var(--shadow);transition:all .3s ease;cursor:pointer;min-height:120px}.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}.card .body{padding:20px;display:flex;flex-direction:column;gap:8px;flex:1;justify-content:center}.card .title{position:static;transform:none;width:auto;font-size:18px;font-weight:600;text-align:left;margin:0;color:#fff;text-shadow:0 1px 3px rgba(0,0,0,.3);white-space:normal}.card .meta{font-size:14px;color:#ffffffe6;text-shadow:0 1px 2px rgba(0,0,0,.3);text-align:left}.template-card{background:var(--card);border:1px solid var(--border);border-radius:12px;overflow:hidden;display:flex;flex-direction:column;box-shadow:var(--shadow);transition:all .3s ease}.template-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}.template-card .media-container{width:100%;aspect-ratio:1 / 1;overflow:hidden;background:#f8f9fa}.template-card .media-thumb,.template-card .media-video{width:100%;height:100%;object-fit:cover;display:block}.template-card .template-body{padding:12px;display:flex;flex-direction:column;gap:8px}.btn{-webkit-appearance:none;-moz-appearance:none;appearance:none;border:none;background:var(--primary);color:#fff;border-radius:8px;padding:12px 16px;cursor:pointer;font-size:14px;font-weight:500;transition:all .2s ease;text-decoration:none;display:inline-flex;align-items:center;justify-content:center;min-height:44px}.btn:hover{background:var(--primary-hover);transform:translateY(-1px)}.btn:active{transform:translateY(0)}.btn.icon-btn{width:44px;height:44px;display:grid;place-items:center;padding:0;border-radius:50%}.btn.full{width:100%}.btn.primary{background:var(--primary);color:#fff}.btn.primary:hover{background:var(--primary-hover)}.btn.danger{background:var(--danger);color:#fff}.btn.danger:hover{background:#c0392b}.btn.select-template{background:var(--primary);color:var(--tg-theme-button-text-color, white);font-weight:600;border-radius:8px;padding:12px;width:100%;transition:all .3s ease;border:none}.btn.select-template:hover{filter:brightness(110%);transform:translateY(-1px);box-shadow:0 4px 12px #0003}.header-hidden-back #backBtn{visibility:hidden}@media (max-width: 768px){.grid{grid-template-columns:1fr;gap:16px}.gallery-grid{grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:12px}.content{padding:16px}.app-header,.app-footer{padding:12px 16px}.title{font-size:16px}}@media (max-width: 480px){.gallery-grid{grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:10px}.content{padding:12px}.card .body{padding:16px}.template-card .template-body{padding:10px}}