:root{color-scheme:light;--bg:#eef4ff;--card:rgba(255,255,255,.94);--text:#0f172a;--muted:#64748b;--line:#dbe4f0;--primary:#2563eb;--primary-dark:#1d4ed8;--soft:#eff6ff;--green:#dcfce7;--danger:#b91c1c;--radius:26px;--shadow:0 26px 90px rgba(15,23,42,.13)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:radial-gradient(circle at top left,#dbeafe,transparent 36rem),linear-gradient(180deg,#f8fbff 0%,var(--bg) 60%,#f8fbff 100%);color:var(--text)}button,input,select{font:inherit}button{border:0;border-radius:14px;padding:12px 16px;background:#e2e8f0;color:#0f172a;font-weight:800;cursor:pointer;transition:.18s}button:hover{transform:translateY(-1px)}button:disabled{cursor:not-allowed;opacity:.55;transform:none}a{color:inherit;text-decoration:none}.primary{background:var(--primary);color:white}.primary:hover{background:var(--primary-dark)}.topbar{position:sticky;top:0;z-index:10;display:flex;align-items:center;justify-content:space-between;gap:18px;width:min(1220px,calc(100% - 32px));margin:16px auto 0;padding:12px 14px;border:1px solid rgba(219,228,240,.9);border-radius:22px;background:rgba(255,255,255,.82);backdrop-filter:blur(16px);box-shadow:0 16px 50px rgba(15,23,42,.08)}.brand{display:flex;align-items:center;gap:10px;font-weight:950;font-size:1.1rem}.brand-mark{display:grid;place-items:center;width:38px;height:38px;border-radius:14px;background:linear-gradient(135deg,#2563eb,#60a5fa);color:white}.nav{display:flex;align-items:center;gap:4px;flex-wrap:wrap;justify-content:center}.nav-link{background:transparent;color:#475569;padding:10px 13px;border-radius:999px}.nav-link.active,.nav-link:hover{background:var(--soft);color:var(--primary);transform:none}.top-cta,.link-button{display:inline-flex;align-items:center;justify-content:center;border-radius:15px;padding:12px 17px;font-weight:900}.top-cta{background:#0f172a;color:white;white-space:nowrap}.ghost{border:1px solid var(--line);background:white;color:#0f172a}.shell{width:min(1220px,calc(100% - 32px));margin:22px auto 46px}.tab-panel{display:none}.tab-panel.active{display:block}.card{background:var(--card);border:1px solid 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16px;max-width:780px}.muted{color:var(--muted);font-size:1.06rem;line-height:1.7;max-width:760px}.wide{max-width:880px}.eyebrow{text-transform:uppercase;letter-spacing:.16em;color:var(--primary);font-size:.76rem;font-weight:950;margin:0}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}.hero-panel{display:flex;flex-direction:column;align-items:flex-end;justify-content:space-between;gap:20px}.status-pill{align-self:flex-end;white-space:nowrap;background:var(--green);color:#166534;border-radius:999px;padding:10px 14px;font-weight:900}.preview-card{width:100%;margin-top:auto;padding:22px;border-radius:24px;background:linear-gradient(135deg,#0f172a,#1e3a8a);color:white;box-shadow:0 24px 60px rgba(30,58,138,.28)}.preview-card strong{display:block;font-size:1.05rem;word-break:break-all}.preview-card small{display:block;color:#bfdbfe;margin-top:8px}.preview-dot{display:block;width:11px;height:11px;border-radius:50%;background:#22c55e;margin-bottom:28px;box-shadow:0 0 0 8px rgba(34,197,94,.16)}.mailbox{padding:24px;margin-bottom:22px;display:grid;gap:16px}.mailbox-head{display:flex;justify-content:space-between;align-items:flex-start;gap:18px}.mailbox h2{margin:4px 0 0;font-size:1.65rem;letter-spacing:-.02em}.field-group{display:grid;gap:8px}.field-group label{font-weight:900}.field-group select,.email-bar input{width:100%;border:1px solid var(--line);border-radius:16px;padding:15px 16px;background:white;color:var(--text)}.email-bar{display:grid;grid-template-columns:1fr auto;gap:10px}.email-bar input{font-size:1.1rem;font-weight:900}.actions{display:flex;gap:10px;flex-wrap:wrap}.timer{min-width:245px;display:flex;justify-content:space-between;align-items:center;gap:12px;padding:14px 16px;border:1px dashed #bfdbfe;background:var(--soft);border-radius:18px;color:var(--muted)}.timer strong{color:var(--primary);font-variant-numeric:tabular-nums}.grid{display:grid;grid-template-columns:410px 1fr;gap:22px}.inbox-card,.detail-card{padding:24px;min-height:520px}.section-head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:18px}.section-head h2{margin:4px 0 0;font-size:1.42rem}.section-head span{display:grid;place-items:center;min-width:40px;height:40px;border-radius:13px;background:var(--soft);color:var(--primary);font-weight:950}.message-list{display:grid;gap:10px}.message-list.empty{display:grid;place-items:center;min-height:320px;color:var(--muted);border:1px dashed var(--line);border-radius:18px;text-align:center;padding:20px}.message-item{width:100%;text-align:left;border:1px solid var(--line);border-radius:18px;background:#fff;padding:14px;display:grid;gap:8px}.message-item.active{border-color:var(--primary);background:var(--soft)}.message-item strong,.message-item span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.message-item 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