:root{--font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-heading: var(--font-body);--bg-primary: #0d0d0d;--bg-secondary: #161616;--bg-elevated: #1e1e1e;--text-primary: #ECECEC;--text-muted: #8A8A8A;--border-color: #333333;--accent: #00D4D7;--accent-hover: #00BBBF;--accent-subtle: rgba(0, 212, 215, .15);--brand-navy: #1A2B3C;--success: #4CAF50;--success-bg: rgba(76, 175, 80, .15);--warning: #FFC107;--warning-bg: rgba(255, 193, 7, .15);--danger: #FF4D6A;--danger-bg: rgba(255, 77, 106, .15);--radius: 10px;--radius-lg: 16px;--min-tap-target: 44px;color-scheme:dark}*{box-sizing:border-box}html,body{background:var(--bg-primary);color:var(--text-primary);font-family:var(--font-body);font-size:16px;line-height:1.5}button,input,textarea,select{font-family:inherit;font-size:16px}a{color:var(--accent)}.app-shell{display:flex;flex-direction:column;min-height:100dvh}.app-header{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:12px 16px;background:var(--bg-secondary);border-bottom:1px solid var(--border-color);position:sticky;top:0;z-index:10}.app-header h1{font-size:18px;font-weight:700}.top-nav{display:flex;gap:4px}.top-nav-btn{min-height:var(--min-tap-target);min-width:44px;padding:8px 16px;border:none;border-radius:var(--radius);background:transparent;color:var(--text-muted);font-weight:600;cursor:pointer}.top-nav-btn.active{background:var(--accent-subtle);color:var(--accent)}.app-main{flex:1;max-width:640px;width:100%;margin:0 auto;padding:16px 16px 48px}.screen h2{font-size:20px;margin-bottom:16px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:var(--min-tap-target);min-width:44px;padding:10px 20px;border:none;border-radius:var(--radius);font-size:15px;font-weight:600;cursor:pointer;transition:background .15s,opacity .15s}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--accent);color:var(--brand-navy)}.btn-primary:hover:not(:disabled){background:var(--accent-hover)}.btn-outline{background:transparent;border:1px solid var(--border-color);color:var(--text-primary)}.btn-danger{background:var(--danger-bg);color:var(--danger);border:1px solid var(--danger)}.btn-ghost{background:transparent;color:var(--text-muted)}.btn-block{width:100%}.btn-sm{min-height:36px;padding:6px 12px;font-size:13px}button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,a:focus-visible{outline:3px solid var(--accent);outline-offset:2px}.form-group{margin-bottom:20px}.label{display:block;font-size:13px;font-weight:600;color:var(--text-muted);margin-bottom:6px}.input,.textarea,select.input{width:100%;min-height:var(--min-tap-target);padding:12px 14px;background:var(--bg-elevated);border:1px solid var(--border-color);border-radius:var(--radius);color:var(--text-primary)}.textarea{min-height:88px;resize:vertical}.input:focus,.textarea:focus{border-color:var(--accent)}.hint{font-size:12px;color:var(--text-muted);margin-top:4px}.field-with-action{display:flex;gap:8px;align-items:flex-start}.field-with-action .textarea,.field-with-action .input{flex:1}.chip-row{display:flex;flex-wrap:wrap;gap:8px}.chip{min-height:44px;padding:8px 16px;border-radius:999px;border:1px solid var(--border-color);background:transparent;color:var(--text-primary);cursor:pointer;font-weight:600;font-size:14px}.chip.active{background:var(--accent);color:var(--brand-navy);border-color:var(--accent)}.brand-toggle{display:flex;gap:8px;margin-bottom:20px}.brand-option{flex:1;min-height:56px;padding:12px;border-radius:var(--radius-lg);border:2px solid var(--border-color);background:var(--bg-elevated);color:var(--text-primary);cursor:pointer;font-weight:700;font-size:15px}.brand-option.active{border-color:var(--accent);background:var(--accent-subtle);color:var(--accent)}.checkbox-row{display:flex;align-items:flex-start;gap:10px;cursor:pointer;padding:8px 0}.checkbox-row input[type=checkbox]{width:22px;height:22px;min-width:22px;accent-color:var(--accent);cursor:pointer}.banner{padding:12px 16px;border-radius:var(--radius);font-size:14px;margin-bottom:16px}.banner-error{background:var(--danger-bg);color:var(--danger)}.banner-success{background:var(--success-bg);color:var(--success)}.banner-info{background:var(--accent-subtle);color:var(--accent)}[role=status],[role=alert]{font-size:14px}.card{background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:16px;margin-bottom:16px}.image-strip{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:16px}.image-thumb{position:relative;width:76px;height:76px;border-radius:var(--radius);overflow:hidden;background:var(--bg-elevated)}.image-thumb img{width:100%;height:100%;-o-object-fit:cover;object-fit:cover;display:block}.remove-thumb-btn{position:absolute;top:2px;right:2px;width:24px;height:24px;border-radius:999px;border:none;background:#000000b3;color:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center}.add-image-btn{width:76px;height:76px;border-radius:var(--radius);border:1px dashed var(--border-color);background:transparent;color:var(--text-muted);cursor:pointer;display:flex;flex-direction:column;align-items:center;justify-content:center;font-size:12px;gap:4px}.badge{display:inline-flex;align-items:center;gap:4px;padding:4px 10px;border-radius:999px;font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.02em}.badge-draft{background:#8a8a8a33;color:var(--text-muted)}.badge-pending{background:var(--warning-bg);color:var(--warning)}.badge-approved{background:var(--accent-subtle);color:var(--accent)}.badge-posted{background:var(--success-bg);color:var(--success)}.badge-failed{background:var(--danger-bg);color:var(--danger)}.badge-rejected{background:#8a8a8a33;color:var(--text-muted)}.channel-list{display:flex;flex-wrap:wrap;gap:6px;margin-top:8px}.channel-pill{font-size:12px;padding:4px 10px;border-radius:999px;border:1px solid var(--border-color)}.channel-pill.posted{border-color:var(--success);color:var(--success)}.channel-pill.failed{border-color:var(--danger);color:var(--danger)}.channel-pill.manual_pending{border-color:var(--warning);color:var(--warning)}.channel-pill.not_configured{border-color:var(--border-color);color:var(--text-muted)}.skeleton{background:linear-gradient(90deg,var(--bg-elevated) 25%,var(--bg-secondary) 37%,var(--bg-elevated) 63%);background-size:400% 100%;animation:skeleton-loading 1.4s ease infinite;border-radius:var(--radius)}@keyframes skeleton-loading{0%{background-position:100% 50%}to{background-position:0 50%}}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.centered-column{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:60vh;text-align:center;padding:24px;gap:16px}