:root{font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;line-height:1.5;font-weight:400;color-scheme:dark;--bg: linear-gradient(180deg, #202123 0%, #171717 100%);--bg-overlay: radial-gradient(circle at top, rgba(255, 255, 255, .04), transparent 36%);--panel: rgba(44, 44, 46, .84);--panel-strong: rgba(52, 53, 65, .94);--border: rgba(255, 255, 255, .08);--text: #ececf1;--muted: #a1a1aa;--accent: #10a37f;--accent-strong: #23b08d;--accent-2: #2d7ff9;--accent-soft: rgba(16, 163, 127, .16);--accent-focus: rgba(16, 163, 127, .22);--accent-border: rgba(16, 163, 127, .48);--success: #34d399;--danger: #fb7185;--shadow: 0 18px 40px rgba(0, 0, 0, .24);--bubble-user: rgba(16, 163, 127, .14);--bubble-assistant: rgba(52, 53, 65, .94)}:root[data-theme=light]{color-scheme:light;--bg: linear-gradient(180deg, #f7f7f8 0%, #ececf1 100%);--bg-overlay: radial-gradient(circle at top, rgba(255, 255, 255, .72), transparent 42%);--panel: rgba(255, 255, 255, .88);--panel-strong: rgba(255, 255, 255, .96);--border: rgba(17, 24, 39, .08);--text: #1f2937;--muted: #6b7280;--success: #059669;--danger: #dc2626;--shadow: 0 18px 35px rgba(15, 23, 42, .08);--bubble-assistant: rgba(255, 255, 255, .98)}:root[data-theme=dark]{color-scheme:dark}*{box-sizing:border-box}html,body,#app{min-height:100vh}body{margin:0;min-width:320px;background:var(--bg-overlay),var(--bg);color:var(--text)}button,input,textarea{font:inherit}button{border:0;border-radius:14px;padding:.8rem 1rem;background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff;cursor:pointer;transition:transform .15s ease,opacity .15s ease,box-shadow .15s ease,border-color .15s ease;box-shadow:0 12px 24px var(--accent-soft)}button:hover{transform:translateY(-1px)}button:disabled{cursor:not-allowed;opacity:.55;transform:none;box-shadow:none}button.secondary{background:#94a3b81f;border:1px solid var(--border);color:var(--text);box-shadow:none}input,textarea{width:100%;border:1px solid var(--border);border-radius:16px;padding:.95rem 1rem;background:var(--panel-strong);color:var(--text);outline:none}input:focus,textarea:focus{border-color:var(--accent-border);box-shadow:0 0 0 4px var(--accent-focus)}textarea{resize:vertical}.field{width:100%}.gap-sm{gap:.45rem}.field-label{font-size:.9rem;font-weight:600}.form-inline-actions,.checkbox-row{display:flex;align-items:center;justify-content:space-between;gap:1rem}.checkbox-row{justify-content:flex-start}.checkbox-row input{width:auto}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}pre{white-space:pre-wrap;word-break:break-word;margin:0;font-family:inherit}h1,h2,h3,p{margin-top:0}h1,h2,h3{margin-bottom:.25rem}.app-shell{--sidebar-size: 360px;display:grid;grid-template-columns:var(--sidebar-size) 28px minmax(0,1fr);min-height:100vh}.app-shell.sidebar-collapsed{--sidebar-size: 0px}.sidebar{min-width:0;max-height:100vh;overflow:hidden;padding:2rem;border-right:1px solid var(--border);background:#00000024;-webkit-backdrop-filter:blur(22px);backdrop-filter:blur(22px);transition:max-height .22s ease,padding .22s ease,opacity .18s ease,transform .22s ease,border-color .18s ease}.sidebar.collapsed{max-height:0;padding:0;border-right-color:transparent;opacity:0;pointer-events:none;transform:translate(-12px)}.sidebar-handle{position:relative;display:flex;align-items:center;justify-content:center;padding:0;border-radius:0;border-top:0;border-right:1px solid var(--border);border-bottom:0;border-left:1px solid var(--border);background:#ffffff05;box-shadow:none;cursor:ew-resize}.sidebar-handle:hover,.sidebar-handle:focus-visible{transform:none;background:#ffffff0d}.sidebar-handle:focus-visible{outline:none;box-shadow:inset 0 0 0 1px var(--accent-border)}.sidebar-handle-grip{width:6px;height:84px;border-radius:999px;background:#94a3b84d;transition:background .15s ease,height .15s ease}.sidebar-handle-icon{position:absolute;display:inline-flex;align-items:center;justify-content:center;width:20px;height:20px;border-radius:999px;background:var(--panel-strong);border:1px solid var(--border);color:var(--muted);font-size:.92rem;line-height:1}.sidebar-dragging .sidebar-handle-grip,.sidebar-handle:hover .sidebar-handle-grip,.sidebar-handle:focus-visible .sidebar-handle-grip{background:var(--accent-border)}.sidebar-top{gap:1rem}.main-panel{padding:2rem}.card{background:var(--panel);border:1px solid var(--border);border-radius:24px;padding:1rem;box-shadow:var(--shadow);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px)}.stack{display:flex;flex-direction:column;gap:.8rem}.brand-row{display:flex;align-items:flex-start;justify-content:space-between;gap:1rem}.icon-button{white-space:nowrap}.eyebrow{text-transform:uppercase;letter-spacing:.18em;color:var(--accent);font-size:.74rem;margin:0 0 .45rem}.muted{color:var(--muted)}.tiny{font-size:.86rem}.status-row,.setting-row{display:flex;justify-content:space-between;align-items:center;gap:1rem}.setting-group{gap:.7rem}.settings-panel{gap:1rem}.theme-grid,.accent-grid{display:grid;gap:.75rem}.theme-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.theme-grid.compact{grid-template-columns:repeat(3,minmax(0,1fr))}.accent-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.theme-chip,.accent-chip{display:flex;align-items:center;gap:.65rem;justify-content:flex-start;text-align:left;background:var(--panel-strong);border:1px solid var(--border);color:var(--text);box-shadow:none}.theme-chip.active,.accent-chip.active{border-color:var(--accent-border);background:var(--accent-soft)}.theme-chip-swatch{width:1.15rem;height:1.15rem;border-radius:999px;border:1px solid rgba(255,255,255,.2);flex-shrink:0}.accent-swatch{border-color:#ffffff38}.theme-system{background:linear-gradient(135deg,#f7f7f8,#f7f7f8 50%,#202123 50%,#202123)}.theme-light{background:linear-gradient(135deg,#fff,#d4d4d8)}.theme-dark{background:linear-gradient(135deg,#202123,#444654)}.custom-accent-field{display:flex;flex-direction:column;gap:.45rem}.custom-accent-input{display:grid;grid-template-columns:auto minmax(0,1fr);gap:.75rem;align-items:center}.color-input{width:3.25rem;min-width:3.25rem;height:3rem;padding:.3rem;cursor:pointer}.ios-toggle{position:relative;width:52px;height:32px;padding:0;border-radius:999px;background:#94a3b83d;box-shadow:inset 0 0 0 1px #ffffff0a}.ios-toggle.on{background:linear-gradient(135deg,#34c759,#22c55e)}.ios-toggle-knob{position:absolute;top:3px;left:3px;width:26px;height:26px;border-radius:999px;background:#fff;box-shadow:0 4px 10px #0000002e;transition:transform .18s ease}.ios-toggle.on .ios-toggle-knob{transform:translate(20px)}.ok{color:var(--success)}.bad,.error-text{color:var(--danger)}.login-panel{max-width:460px}.chat-layout{display:grid;grid-template-rows:auto minmax(0,1fr) auto;gap:1rem;height:calc(100vh - 4rem)}.chat-header{display:flex;align-items:center;justify-content:space-between;gap:1rem}.messages{overflow-y:auto;padding-right:.5rem;display:flex;flex-direction:column;gap:1rem}.message{max-width:min(80ch,85%);padding:1rem 1.1rem;border-radius:20px;border:1px solid var(--border)}.message.user{align-self:flex-end;background:var(--bubble-user)}.message.assistant{align-self:flex-start;background:var(--bubble-assistant)}.message.pending{opacity:.75}.message-attachments,.attachment-list{display:flex;flex-wrap:wrap;gap:.55rem}.message-attachments{margin-bottom:.75rem}.attachment-pill{display:inline-flex;align-items:center;gap:.75rem;padding:.7rem .85rem;border-radius:16px;border:1px solid var(--border);background:var(--panel-strong)}.attachment-pill-inline{padding:.35rem .65rem;border-radius:999px}.attachment-pill-copy{display:flex;flex-direction:column;gap:.15rem}.attachment-remove{padding:.45rem .7rem;border-radius:12px}.message-meta{font-size:.8rem;color:var(--accent);margin-bottom:.35rem;text-transform:uppercase;letter-spacing:.08em}.composer{display:flex;flex-direction:column;gap:.8rem}.composer-top-row{display:flex;align-items:center;justify-content:space-between;gap:1rem}.file-picker{position:relative;display:inline-flex;align-items:center;justify-content:center}.empty-state{max-width:720px}.empty-list{margin:0;padding-left:1.25rem}.empty-list li+li{margin-top:.45rem}.composer-actions{display:flex;justify-content:space-between;align-items:center;gap:1rem}@media(max-width:980px){.app-shell{grid-template-columns:1fr;grid-template-rows:auto 24px minmax(0,1fr)}.app-shell.sidebar-collapsed{grid-template-rows:0 24px minmax(0,1fr)}.sidebar{max-height:1000px;border-right:0;border-bottom:1px solid var(--border)}.sidebar.collapsed{transform:translateY(-12px)}.sidebar-handle{min-height:24px;border-top:1px solid var(--border);border-right:0;border-bottom:1px solid var(--border);border-left:0;cursor:ns-resize}.sidebar-handle-grip{width:84px;height:6px}.sidebar-handle-icon{font-size:1rem}.chat-layout{height:auto;min-height:calc(100vh - 24rem)}.message,.login-panel{max-width:100%}}@media(max-width:640px){.sidebar,.main-panel{padding:1rem}.brand-row,.chat-header,.composer-actions,.composer-top-row,.form-inline-actions,.setting-row{flex-direction:column;align-items:stretch}.theme-grid,.theme-grid.compact,.accent-grid,.custom-accent-input{grid-template-columns:1fr}}
