:root{--font-sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;--accent: #4f46e5;--accent-hover: #4338ca;--accent-soft: #eef2ff;--accent-contrast: #ffffff;--bg: #f6f7fb;--surface: #ffffff;--surface-2: #f2f3f8;--surface-hover: #eef0f6;--surface-active: #e6e9f5;--border: #e6e8ef;--border-strong: #d3d6e0;--text: #1c1d29;--text-2: #565a6e;--text-3: #8b8fa3;--unread-dot: var(--accent);--star: #f5b301;--danger: #e5484d;--success: #30a46c;--shadow-sm: 0 1px 2px rgba(20, 22, 40, .06);--shadow-md: 0 6px 24px rgba(20, 22, 40, .1);--shadow-lg: 0 18px 50px rgba(20, 22, 40, .18);--radius: 10px;--radius-lg: 16px;--sidebar-w: 260px;--list-w: 400px}:root[data-theme=dark]{--accent: #7c83ff;--accent-hover: #9299ff;--accent-soft: #23253a;--accent-contrast: #10111a;--bg: #0e0f16;--surface: #16171f;--surface-2: #1b1d27;--surface-hover: #22242f;--surface-active: #2a2d3b;--border: #262836;--border-strong: #333648;--text: #eceef5;--text-2: #a9adc0;--text-3: #71768c;--star: #ffcf4a;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .4);--shadow-md: 0 6px 24px rgba(0, 0, 0, .45);--shadow-lg: 0 18px 50px rgba(0, 0, 0, .6)}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{font-family:var(--font-sans);background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;font-size:14px;line-height:1.5}button{font-family:inherit;cursor:pointer}.material-symbols-rounded{line-height:1;-webkit-user-select:none;user-select:none;vertical-align:middle}.btn{display:inline-flex;align-items:center;gap:8px;border:1px solid transparent;border-radius:var(--radius);padding:9px 16px;font-size:14px;font-weight:600;background:var(--surface-2);color:var(--text);transition:background .15s ease,box-shadow .15s ease,transform .05s ease}.btn:hover{background:var(--surface-hover)}.btn:active{transform:translateY(1px)}.btn-primary{background:var(--accent);color:var(--accent-contrast)}.btn-primary:hover{background:var(--accent-hover)}.btn-ghost{background:transparent}.btn-ghost:hover{background:var(--surface-hover)}.btn-danger{background:transparent;color:var(--danger)}.btn-danger:hover{background:color-mix(in srgb,var(--danger) 12%,transparent)}.icon-btn{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:var(--radius);border:none;background:transparent;color:var(--text-2);transition:background .15s ease,color .15s ease}.icon-btn:hover{background:var(--surface-hover);color:var(--text)}.icon-btn:disabled{opacity:.4;cursor:default}.input{width:100%;border:1px solid var(--border-strong);background:var(--surface);color:var(--text);border-radius:var(--radius);padding:10px 12px;font-size:14px;transition:border-color .15s ease,box-shadow .15s ease}.input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 22%,transparent)}.app{display:grid;grid-template-columns:var(--sidebar-w) var(--list-w) 1fr;height:100vh;height:100dvh;overflow:hidden}.sidebar{display:flex;flex-direction:column;background:var(--surface);border-right:1px solid var(--border);min-height:0}.sidebar-head{display:flex;align-items:center;gap:10px;padding:18px 18px 10px}.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:16px;letter-spacing:-.01em}.brand-mark{display:grid;place-items:center;width:34px;height:34px;border-radius:10px;background:var(--accent);color:var(--accent-contrast)}.compose-btn{margin:8px 14px 6px;justify-content:center;box-shadow:var(--shadow-sm)}.folder-list{flex:1;overflow-y:auto;padding:8px 10px 16px;min-height:0}.folder-item{display:flex;align-items:center;gap:12px;width:100%;border:none;background:transparent;color:var(--text-2);padding:9px 12px;border-radius:var(--radius);font-size:14px;font-weight:500;text-align:left;transition:background .12s ease,color .12s ease}.folder-item:hover{background:var(--surface-hover);color:var(--text)}.folder-item.active{background:var(--accent-soft);color:var(--accent);font-weight:600}.folder-item .folder-name{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.folder-badge{font-size:12px;font-weight:700;min-width:20px;height:20px;padding:0 6px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;background:var(--accent);color:var(--accent-contrast)}.folder-item.active .folder-badge{background:var(--accent)}.sidebar-foot{border-top:1px solid var(--border);padding:12px 14px;display:flex;align-items:center;gap:10px}.avatar{width:34px;height:34px;border-radius:50%;display:grid;place-items:center;background:var(--accent-soft);color:var(--accent);font-weight:700;flex-shrink:0}.account-email{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:13px;color:var(--text-2)}.list-col{display:flex;flex-direction:column;background:var(--surface);border-right:1px solid var(--border);min-height:0}.list-head{display:flex;align-items:center;gap:10px;padding:12px 14px;border-bottom:1px solid var(--border)}.search{position:relative;flex:1}.search .material-symbols-rounded{position:absolute;left:11px;top:50%;transform:translateY(-50%);color:var(--text-3)}.search input{width:100%;border:1px solid transparent;background:var(--surface-2);color:var(--text);border-radius:var(--radius);padding:9px 12px 9px 38px;font-size:14px}.search input:focus{outline:none;border-color:var(--accent);background:var(--surface)}.list-title{padding:14px 16px 8px;font-size:13px;font-weight:600;color:var(--text-3);text-transform:uppercase;letter-spacing:.04em}.msg-list{flex:1;overflow-y:auto;min-height:0}.msg-item{display:grid;grid-template-columns:auto 1fr auto;gap:4px 12px;padding:13px 16px;border-bottom:1px solid var(--border);cursor:pointer;transition:background .1s ease;position:relative}.msg-item:hover{background:var(--surface-hover)}.msg-item.active{background:var(--accent-soft)}.msg-item.active:before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--accent)}.msg-unread-dot{grid-row:1 / 3;align-self:center;width:8px;height:8px;border-radius:50%;background:var(--unread-dot)}.msg-unread-dot.hidden{background:transparent}.msg-from{font-weight:600;color:var(--text);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.msg-item.unread .msg-from{font-weight:700}.msg-date{font-size:12px;color:var(--text-3);white-space:nowrap}.msg-subject{grid-column:2 / 4;color:var(--text);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:13.5px}.msg-item.unread .msg-subject{font-weight:600}.msg-meta-row{grid-column:2 / 4;display:flex;align-items:center;gap:8px;color:var(--text-3)}.msg-preview{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:12.5px;flex:1}.msg-flags{display:inline-flex;align-items:center;gap:4px;color:var(--text-3)}.msg-flags .starred{color:var(--star)}.reader{display:flex;flex-direction:column;background:var(--bg);min-height:0}.reader-toolbar{display:flex;align-items:center;gap:4px;padding:10px 16px;border-bottom:1px solid var(--border);background:var(--surface)}.reader-toolbar .spacer{flex:1}.reader-scroll{flex:1;overflow-y:auto;min-height:0;padding:24px clamp(16px,4vw,48px) 60px}.reader-card{max-width:860px;margin:0 auto;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);overflow:hidden}.reader-subject{font-size:22px;font-weight:700;letter-spacing:-.02em;padding:24px 28px 4px;line-height:1.3}.reader-headers{display:flex;align-items:center;gap:14px;padding:16px 28px;border-bottom:1px solid var(--border)}.reader-avatar{width:44px;height:44px;border-radius:50%;display:grid;place-items:center;background:var(--accent-soft);color:var(--accent);font-weight:700;font-size:17px;flex-shrink:0}.reader-from{flex:1;min-width:0}.reader-from .name{font-weight:600}.reader-from .addr{color:var(--text-3);font-size:13px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.reader-to{color:var(--text-3);font-size:12.5px;margin-top:2px}.reader-datetime{color:var(--text-3);font-size:13px;white-space:nowrap}.reader-body{padding:24px 28px;color:var(--text);font-size:15px;line-height:1.65;overflow-wrap:anywhere}.reader-body :is(a){color:var(--accent)}.reader-body img{max-width:100%;height:auto}.reader-body pre{white-space:pre-wrap;word-break:break-word;font-family:inherit;margin:0}.attachments{padding:0 28px 24px;display:flex;flex-wrap:wrap;gap:10px}.attachment{display:flex;align-items:center;gap:10px;border:1px solid var(--border);border-radius:var(--radius);padding:10px 14px;text-decoration:none;color:var(--text);background:var(--surface-2);transition:background .12s ease}.attachment:hover{background:var(--surface-hover)}.attachment .att-name{font-weight:500;font-size:13px}.attachment .att-size{font-size:12px;color:var(--text-3)}.empty{flex:1;display:grid;place-items:center;color:var(--text-3);text-align:center;padding:40px}.empty .material-symbols-rounded{font-size:64px;opacity:.35;margin-bottom:12px}.spinner{width:26px;height:26px;border-radius:50%;border:3px solid var(--border-strong);border-top-color:var(--accent);animation:spin .7s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.center{flex:1;display:grid;place-items:center}.login-wrap{min-height:100vh;min-height:100dvh;display:grid;place-items:center;padding:24px;background:radial-gradient(1200px 600px at 100% -10%,color-mix(in srgb,var(--accent) 18%,transparent),transparent),var(--bg)}.login-card{width:100%;max-width:400px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);padding:32px}.login-brand{display:flex;align-items:center;gap:12px;margin-bottom:24px}.login-title{font-size:20px;font-weight:700;letter-spacing:-.02em}.login-sub{color:var(--text-2);font-size:13px}.field{margin-bottom:14px}.field label{display:block;font-size:13px;font-weight:500;color:var(--text-2);margin-bottom:6px}.login-error{background:color-mix(in srgb,var(--danger) 12%,transparent);color:var(--danger);border-radius:var(--radius);padding:10px 12px;font-size:13px;margin-bottom:14px}.login-submit{width:100%;justify-content:center;margin-top:6px;padding:11px}.composer-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#0a0c1873;display:grid;place-items:end center;z-index:50;padding:0 24px 24px}.composer{width:100%;max-width:680px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg) var(--radius-lg) 0 0;box-shadow:var(--shadow-lg);display:flex;flex-direction:column;max-height:86vh;overflow:hidden}.composer-head{display:flex;align-items:center;padding:14px 18px;background:var(--surface-2);font-weight:600}.composer-head .spacer{flex:1}.composer-body{padding:4px 18px;overflow-y:auto}.composer-row{display:flex;align-items:center;gap:10px;border-bottom:1px solid var(--border);padding:4px 0}.composer-row label{width:60px;color:var(--text-3);font-size:13px}.composer-row input{flex:1;border:none;background:transparent;color:var(--text);padding:10px 0;font-size:14px}.composer-row input:focus{outline:none}.composer-body textarea{width:100%;border:none;background:transparent;color:var(--text);resize:none;min-height:220px;padding:14px 0;font-size:14px;font-family:inherit;line-height:1.6}.composer-body textarea:focus{outline:none}.composer-foot{display:flex;align-items:center;gap:10px;padding:14px 18px;border-top:1px solid var(--border)}.composer-foot .spacer{flex:1}.chip-list{display:flex;flex-wrap:wrap;gap:8px;padding:8px 0}.chip{display:inline-flex;align-items:center;gap:6px;background:var(--surface-2);border:1px solid var(--border);border-radius:999px;padding:4px 6px 4px 12px;font-size:13px}.chip button{border:none;background:transparent;color:var(--text-3);display:inline-flex;padding:0}.toast{position:fixed;bottom:24px;left:50%;transform:translate(-50%);background:var(--text);color:var(--surface);padding:12px 20px;border-radius:999px;font-size:13px;font-weight:500;box-shadow:var(--shadow-md);z-index:80}.toast.error{background:var(--danger);color:#fff}.mobile-only{display:none}@media(max-width:1080px){:root{--list-w: 340px}}@media(max-width:860px){.app{grid-template-columns:1fr}.sidebar,.list-col,.reader{grid-column:1;grid-row:1}.app[data-view=list] .reader,.app[data-view=list] .sidebar,.app[data-view=reader] .sidebar,.app[data-view=reader] .list-col,.app[data-view=folders] .list-col,.app[data-view=folders] .reader{display:none}.mobile-only{display:inline-flex}}