*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}:root{--color-bg: #f5f5f5;--color-surface: #ffffff;--color-border: #e5e5e5;--color-border-light: #f0f0f0;--color-text: #111111;--color-text-secondary: #666666;--color-text-muted: #999999;--color-accent: #009CDD;--color-accent-hover: #0088c2;--color-teal: #009CDD;--color-teal-hover: #0088c2;--color-danger: #e53935;--font-serif: "Crimson Text", Georgia, serif;--font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--header-height: 56px;--panel-header-height: 48px;--radius-sm: 4px;--radius-md: 6px;--radius-lg: 8px;--shadow-sm: 0 1px 3px rgba(0, 0, 0, .08);--shadow-md: 0 4px 12px rgba(0, 0, 0, .1);--transition: .15s ease}html{font-size:14px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{font-family:var(--font-sans);background:var(--color-bg);color:var(--color-text);overflow:hidden;height:100vh}.app-header{display:flex;align-items:center;justify-content:space-between;height:var(--header-height);padding:0 20px;background:#0c181c;color:#fff;border-bottom:3px solid var(--color-accent)}.app-header__left{display:flex;align-items:center;gap:10px}.app-icon{width:32px;height:32px;border-radius:50%;object-fit:cover}.app-title{font-family:var(--font-serif);font-size:20px;font-weight:700;letter-spacing:.5px}.toolbar{display:flex;align-items:center;gap:8px}.toolbar__select{appearance:none;background:#1a1a1a;color:#fff;border:1px solid #333;padding:6px 28px 6px 12px;border-radius:var(--radius-sm);font-family:var(--font-sans);font-size:12px;cursor:pointer;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath d='M3 5l3 3 3-3' fill='none' stroke='%23999' stroke-width='1.5'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 8px center}.toolbar__select:hover{border-color:#555}.toolbar__btn{display:flex;align-items:center;gap:6px;padding:6px 14px;border:1px solid #333;border-radius:var(--radius-sm);background:#1a1a1a;color:#ccc;font-family:var(--font-sans);font-size:12px;font-weight:500;cursor:pointer;transition:all var(--transition);white-space:nowrap}.toolbar__btn:hover{background:#2a2a2a;color:#fff;border-color:#555}.toolbar__btn--accent{background:var(--color-accent);color:#fff;border-color:var(--color-accent);font-weight:600}.toolbar__btn--accent:hover{background:var(--color-accent-hover);border-color:var(--color-accent-hover);color:#fff}.toolbar__btn svg{flex-shrink:0}.app-layout{display:grid;grid-template-columns:320px 1fr 1fr;height:calc(100vh - var(--header-height));overflow:hidden}.panel{display:flex;flex-direction:column;border-right:1px solid var(--color-border);overflow:hidden;background:var(--color-surface)}.panel:last-child{border-right:none}.panel--feed{background:#fafafa}.panel--preview{background:var(--color-bg)}.panel__header{display:flex;align-items:center;justify-content:space-between;height:var(--panel-header-height);padding:0 16px;border-bottom:1px solid var(--color-border);flex-shrink:0}.panel__header h2{font-family:var(--font-sans);font-size:13px;font-weight:600;text-transform:uppercase;letter-spacing:.8px;color:var(--color-text-secondary)}.article-count,.slot-count{font-size:11px;color:var(--color-text-muted);font-weight:500}.panel__search{padding:10px 12px;border-bottom:1px solid var(--color-border-light);flex-shrink:0}.panel__search input{width:100%;padding:8px 12px;border:1px solid var(--color-border);border-radius:var(--radius-md);font-family:var(--font-sans);font-size:13px;outline:none;transition:border-color var(--transition);background:#fff}.panel__search input:focus{border-color:var(--color-teal);box-shadow:0 0 0 3px #1db9c41a}.panel__search input::placeholder{color:var(--color-text-muted)}.feed-list{flex:1;overflow-y:auto;padding:8px 10px}.feed-card{padding:12px 14px;margin-bottom:6px;background:#fff;border:1px solid var(--color-border-light);border-left:3px solid transparent;border-radius:var(--radius-sm);cursor:grab;transition:all var(--transition);position:relative}.feed-card:hover{border-left-color:var(--color-accent);box-shadow:var(--shadow-sm);transform:translate(2px)}.feed-card:active{cursor:grabbing}.feed-card.dragging{opacity:.35;transform:scale(.97)}.feed-card.in-newsletter{border-left-color:var(--color-teal);background:#f8fffe}.feed-card.in-newsletter .feed-card__title{color:var(--color-text-secondary)}.feed-card__title{font-family:var(--font-serif);font-size:15px;font-weight:600;line-height:1.35;color:var(--color-text);margin-bottom:6px}.feed-card__excerpt{font-size:12px;line-height:1.5;color:var(--color-text-secondary);margin-bottom:8px}.feed-card__meta{display:flex;gap:8px;font-size:11px;color:var(--color-text-muted);text-transform:uppercase;letter-spacing:.3px}.feed-card__tags{display:flex;flex-wrap:wrap;gap:4px;margin-top:8px}.feed-card__tag{display:inline-block;padding:2px 8px;background:#f0f0f0;border-radius:12px;font-size:10px;color:var(--color-text-secondary);text-transform:uppercase;letter-spacing:.3px}.feed-card__badge{position:absolute;top:8px;right:8px;padding:2px 8px;background:var(--color-teal);color:#fff;font-size:9px;font-weight:600;text-transform:uppercase;letter-spacing:.5px;border-radius:10px}.feed-loading,.feed-error{display:flex;align-items:center;justify-content:center;height:200px;font-size:14px;color:var(--color-text-muted)}.feed-error{color:var(--color-danger)}.newsletter-slots{flex:1;overflow-y:auto;padding:12px;min-height:200px;transition:background var(--transition)}.newsletter-slots.drag-over{background:repeating-linear-gradient(-45deg,transparent,transparent 10px,rgba(0,156,221,.04) 10px,rgba(0,156,221,.04) 20px)}.drop-zone-empty{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;min-height:300px;color:var(--color-text-muted);text-align:center;border:2px dashed var(--color-border);border-radius:var(--radius-lg);padding:40px}.drop-zone-empty__icon{margin-bottom:16px;opacity:.3}.drop-zone-empty p{font-size:14px;max-width:200px;line-height:1.5}.newsletter-slot{display:flex;align-items:center;gap:12px;padding:12px 14px;margin-bottom:6px;background:#fff;border:1px solid var(--color-border);border-radius:var(--radius-sm);cursor:grab;transition:all var(--transition)}.newsletter-slot:hover{box-shadow:var(--shadow-sm);border-color:#ddd}.newsletter-slot.dragging{opacity:.35;transform:scale(.97)}.newsletter-slot__handle{flex-shrink:0;cursor:grab;padding:4px;color:var(--color-text-muted)}.newsletter-slot__content{flex:1;min-width:0}.newsletter-slot__number{display:inline-flex;align-items:center;justify-content:center;width:22px;height:22px;background:var(--color-accent);color:#fff;font-size:11px;font-weight:700;border-radius:50%;margin-right:10px;flex-shrink:0;float:left}.newsletter-slot__title{font-family:var(--font-serif);font-size:14px;font-weight:600;line-height:1.3;color:var(--color-text);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.newsletter-slot__meta{font-size:11px;color:var(--color-text-muted);margin-top:2px}.slot-remove{flex-shrink:0;display:flex;align-items:center;justify-content:center;width:28px;height:28px;border:none;background:transparent;color:var(--color-text-muted);border-radius:var(--radius-sm);cursor:pointer;transition:all var(--transition)}.slot-remove:hover{background:#fee;color:var(--color-danger)}.drop-indicator{height:3px;background:var(--color-accent);border-radius:2px;margin:2px 0;box-shadow:0 0 8px #009cdd66}#preview-frame{flex:1;border:none;background:var(--color-bg);width:100%}.toast{position:fixed;bottom:24px;left:50%;transform:translate(-50%);padding:10px 24px;border-radius:var(--radius-md);font-size:13px;font-weight:500;z-index:1000;animation:toast-in .2s ease;box-shadow:var(--shadow-md)}.toast--success{background:#111;color:#fff}.toast--error{background:var(--color-danger);color:#fff}@keyframes toast-in{0%{opacity:0;transform:translate(-50%) translateY(10px)}to{opacity:1;transform:translate(-50%) translateY(0)}}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#ddd;border-radius:3px}::-webkit-scrollbar-thumb:hover{background:#bbb}