.tool-main{max-width:1160px}.tool-heading h1{font-size:clamp(29px,4vw,42px);line-height:1.15}.tool-heading p{font-size:15px}.tool-layout{gap:20px;grid-template-columns:350px minmax(0,1fr)}.tool-card{background:var(--surface);border-radius:24px}.tool-card.accent{background:var(--surface)}.tool-card p,.tool-docs li{font-size:14px;line-height:1.75}.tool-card h2{font-size:19px}.workspace-inbox{min-height:510px;padding:0;overflow:hidden}.inbox-toolbar{padding:20px 24px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:12px}.inbox-toolbar h2{margin:0}.inbox-toolbar h2:before{content:'';display:inline-block;width:9px;height:9px;background:#14b889;border-radius:50%;margin-right:10px;box-shadow:0 0 0 4px #14b88918}.workspace-inbox #timedMessages,.workspace-inbox #messageDetail{padding:16px 24px}.workspace-inbox .tool-empty{padding:100px 12px;max-width:400px;margin:auto;font-size:14px}.workspace-inbox .tool-empty:before{content:'✉';display:block;font-size:32px;color:#8547ff;background:var(--wash);border:1px solid var(--line);border-radius:18px;width:64px;height:64px;line-height:64px;margin:0 auto 20px}.credential-panel .tool-row{flex-wrap:nowrap;gap:6px;background:var(--wash);border:1px solid var(--line);padding:6px;border-radius:15px}.credential-panel .tool-row input{border:0;background:transparent;margin:0;padding:10px 4px;font-weight:600;font-size:13px}.credential-panel .tool-row .tool-button{padding:10px;min-height:40px}.credential-panel label{font-size:12px;font-weight:600}.credential-panel .primary,.credential-panel #copyTimedCredentials{width:100%;min-height:48px;margin-top:12px;font-size:14px}.expiry-strip{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:16px;background:var(--wash);border:1px solid var(--line);border-radius:16px;margin:22px 0 8px}.expiry-strip small{display:block;color:var(--muted);font-size:12px;margin-top:4px}.expiry-strip .tool-timer{font-size:30px;letter-spacing:0;margin:0;font-variant-numeric:tabular-nums}.tool-note{border-top:1px solid var(--line);padding-top:16px;margin-top:20px}.tool-docs{max-width:none;margin-top:28px}.guide-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}.guide-grid h3{font-size:16px;margin:8px 0}.guide-grid p{margin:0}.step-number{display:inline-grid;place-items:center;width:32px;height:32px;border-radius:10px;background:var(--wash);color:#8242ef;font-weight:700}.faq-list details{border:1px solid var(--line);background:var(--wash);border-radius:16px;margin:12px 0;padding:0}.faq-list summary{padding:18px 20px;font-size:15px;line-height:1.5;min-height:52px}.faq-list details p{padding:0 20px 18px;margin:0}.tool-button{min-height:44px}.tool-docs a{color:#7941d8;text-decoration:underline;text-underline-offset:3px}.api-jump{display:flex;justify-content:center;flex-wrap:wrap;gap:10px;margin:20px 0 30px}.api-jump a{border:1px solid var(--line);border-radius:24px;padding:10px 16px;text-decoration:none;color:var(--ink);font-size:13px}.api-doc-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}.api-doc-grid section{margin-top:20px}.api-doc-grid h3{font-size:16px}.api-doc-grid ul{padding-left:20px}.tool-code{font-size:13px;line-height:1.8}.api-table{width:100%;border-collapse:collapse;font-size:14px}.api-table th,.api-table td{text-align:left;vertical-align:top;padding:14px 8px;border-bottom:1px solid var(--line);overflow-wrap:anywhere}.api-table th:first-child{width:100px}.tool-key{display:flex;align-items:center;justify-content:space-between;gap:15px}.tool-key p{margin:0}.tool-page input,.tool-page select{font-size:16px}.tool-page #messageSubject{overflow-wrap:anywhere}.tool-page #messageSender{overflow-wrap:anywhere}#newKey{padding:16px;margin-top:20px;border:1px solid var(--line);border-radius:14px;background:var(--wash)}@media(max-width:760px){.tool-layout,.guide-grid,.api-doc-grid{grid-template-columns:1fr}.workspace-inbox{min-height:360px}.workspace-inbox .tool-empty{padding:65px 10px}.tool-heading{margin-bottom:24px}.inbox-toolbar{padding:18px}.workspace-inbox #timedMessages,.workspace-inbox #messageDetail{padding:14px 18px}.tool-key{align-items:flex-start}.api-table{font-size:13px}.tool-card{padding:20px}.workspace-inbox{padding:0}}