:root{color-scheme:light;font-family:SF Pro Text,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:#edf2f5;color:#17212b;--app-bg: #edf2f5;--panel: #ffffff;--panel-strong: #ffffff;--panel-muted: #f7f9fb;--line: #d8e0e6;--line-soft: #e8edf1;--text: #17212b;--muted: #667585;--accent: #136f63;--accent-strong: #0f5e54;--accent-soft: rgba(19, 111, 99, .12);--accent-quiet: rgba(19, 111, 99, .07);--danger: #a13b3b;--danger-soft: rgba(161, 59, 59, .08);--shadow-soft: 0 18px 40px rgba(23, 33, 43, .08)}*{box-sizing:border-box}body{margin:0;background:linear-gradient(180deg,#ffffffb8,#fff0 260px),var(--app-bg);color:var(--text);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}body.is-resizing{cursor:col-resize;-webkit-user-select:none;user-select:none}button,input,select,textarea{font:inherit}button{cursor:pointer}.login-screen{min-height:100vh;display:grid;place-items:center;background:radial-gradient(circle at 22% 12%,rgba(19,111,99,.14),transparent 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small{color:var(--muted);font-size:12px}.compose-attachment button{min-height:30px;border:1px solid var(--line);border-radius:8px;background:var(--panel);color:#425166;padding:5px 10px;font-weight:600}.compose-attachment button:hover{border-color:#136f632e;background:var(--accent-quiet);color:var(--accent-strong)}@media(max-width:900px){.mail-shell{grid-template-columns:220px minmax(260px,1fr)}.pane-resizer,.message-view{display:none}.account-grid{grid-template-columns:1fr}.compose-backdrop{padding:16px}.compose{width:100%;height:calc(100vh - 32px);min-height:0}}