:root{--tc:#4f46e5;--tc-dark:#312e81;--tc-soft:#eef2ff;--tc-ink:#201f37;--tc-muted:#67667c;--tc-line:#deddf0}body{background:linear-gradient(180deg,#f7f7ff 0,#fff 470px)}.tc-hero{background:radial-gradient(circle at 88% 13%,rgba(255,255,255,.3),transparent 27%),linear-gradient(135deg,#312e81,#4f46e5 58%,#8b5cf6);border:0;color:#fff;box-shadow:0 22px 60px rgba(79,70,229,.2)}.tc-hero .tool-hero-title,.tc-hero .tool-hero-desc{color:#fff}.tc-hero .tool-hero-icon{background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.3);color:#fff;font:800 .9rem ui-monospace,monospace}.tc-hero .tool-badge{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.27);color:#fff}.tc-page{max-width:1160px}.tc-app{padding:22px;border:1px solid var(--tc-line);border-radius:24px;background:#fff;box-shadow:0 18px 55px rgba(49,46,129,.09)}.tc-banner{display:none;padding:10px 13px;margin-bottom:14px;border-radius:10px;font-size:.83rem}.tc-banner.show{display:block}.tc-banner.success{background:#ecfdf5;color:#047857;border:1px solid #a7f3d0}.tc-banner.error{background:#fff1f2;color:#be123c;border:1px solid #fecdd3}.tc-methods,.tc-controls,.tc-direction,.tc-label,.tc-label>div,.tc-mini,.tc-result-bar,.tc-result-bar>div{display:flex;align-items:center;justify-content:space-between;gap:8px}.tc-methods{justify-content:flex-start;flex-wrap:wrap;padding:5px;border-radius:12px;background:var(--tc-soft)}.tc-methods button,.tc-direction button,.tc-label button,.tc-mini button,.tc-result-bar button{padding:8px 11px;border:1px solid var(--tc-line);border-radius:9px;background:#fff;color:var(--tc-dark);font:600 .75rem 'Google Sans',sans-serif;cursor:pointer}.tc-methods button.active,.tc-direction button.active{background:var(--tc);border-color:var(--tc);color:#fff;box-shadow:0 5px 12px rgba(79,70,229,.2)}.tc-controls{justify-content:flex-start;flex-wrap:wrap;margin:13px 0;padding:11px;border:1px solid var(--tc-line);border-radius:12px;background:#fafafe}.tc-controls label{font-size:.75rem;color:var(--tc-muted)}.tc-controls input,.tc-controls select{padding:7px;border:1px solid var(--tc-line);border-radius:8px}.tc-controls input[type=checkbox]{accent-color:var(--tc)}.tc-layout{display:grid;grid-template-columns:1fr 1fr;gap:15px}.tc-label{height:34px;color:var(--tc-muted);font-size:.73rem;font-weight:700;text-transform:uppercase}.tc-layout textarea{width:100%;height:310px;box-sizing:border-box;padding:16px;border:1.5px solid var(--tc-line);border-radius:14px;resize:vertical;outline:none;color:var(--tc-ink);font:14px/1.65 ui-monospace,monospace}.tc-layout textarea:focus{border-color:var(--tc);box-shadow:0 0 0 4px rgba(79,70,229,.09)}#cipher-output{background:#fafafe}.tc-mini{justify-content:flex-start;margin-top:8px}.tc-submit{width:100%;margin-top:15px;padding:13px;border:0;border-radius:11px;background:linear-gradient(135deg,var(--tc-dark),var(--tc));color:#fff;font-weight:700;cursor:pointer;box-shadow:0 9px 20px rgba(79,70,229,.22)}.tc-result-bar{margin-top:12px;padding:11px 13px;border:1px solid var(--tc-line);border-radius:11px;background:var(--tc-soft);font-size:.76rem;color:var(--tc-muted)}.tc-warning{margin-top:24px;padding:18px;border:1px solid #fed7aa;border-radius:16px;background:#fff7ed;color:#9a3412}.tc-warning strong{display:block}.tc-warning p{margin:5px 0 0;font-size:.8rem;line-height:1.6}.tc-info,.tc-guide,.tc-faq{margin-top:28px;padding:30px;border:1px solid var(--tc-line);border-radius:22px;background:#fff}.tc-info{display:grid;grid-template-columns:1.15fr 1fr;gap:38px;background:linear-gradient(135deg,#fff,#eef2ff)}.tc-info h2,.tc-guide h2,.tc-faq h2{margin:5px 0 10px;color:var(--tc-ink);font-size:1.55rem}.tc-info p,.tc-guide p,.tc-faq p{color:var(--tc-muted);line-height:1.7}.tc-eyebrow{color:var(--tc);font-size:.74rem;font-weight:700;text-transform:uppercase;letter-spacing:.09em}.tc-info ol{list-style:none;counter-reset:s;padding:0;margin:0}.tc-info li{position:relative;counter-increment:s;padding:4px 0 16px 46px}.tc-info li:before{content:counter(s);position:absolute;left:0;width:32px;height:32px;display:grid;place-items:center;border-radius:10px;background:var(--tc);color:#fff;font-weight:700}.tc-info li strong,.tc-info li span{display:block}.tc-info li span{font-size:.8rem;color:var(--tc-muted)}.tc-cards{display:grid;grid-template-columns:repeat(4,1fr);gap:13px}.tc-cards article{padding:18px;border:1px solid var(--tc-line);border-radius:15px;background:#fafaff}.tc-cards h3{margin:0 0 7px;color:var(--tc-ink);font-size:.94rem}.tc-cards p{margin:0;font-size:.82rem}.tc-faq details{padding:14px 0;border-top:1px solid var(--tc-line)}.tc-faq summary{cursor:pointer;color:var(--tc-ink);font-weight:700}
@media(max-width:800px){.tc-layout,.tc-info{grid-template-columns:1fr}.tc-cards{grid-template-columns:1fr 1fr}}@media(max-width:570px){.tc-app,.tc-info,.tc-guide,.tc-faq{padding:16px;border-radius:17px}.tc-result-bar{align-items:flex-start;flex-direction:column}.tc-layout textarea{height:250px}.tc-cards{grid-template-columns:1fr}.tc-direction{width:100%}.tc-direction button{flex:1}}