:root{color-scheme:dark;--bg: #1a1b2f;--surface: #24253a;--surface-variant: #2e2f47;--text: #e8e8f0;--muted: #9aa0b8;--primary: #00bcd4;--success: #43a047;--error: #ef5350;--record-a: #00bcd4;--record-aaaa: #64b5f6;--record-mx: #ffb74d;--record-txt: #9e9e9e;--record-cname: #ba68c8;--record-ns: #66bb6a;--record-soa: #26a69a;--radius: 14px;--font: "Inter", system-ui, sans-serif;--mono: "JetBrains Mono", ui-monospace, monospace}:root[data-theme=light]{color-scheme:light;--bg: #f4f5fa;--surface: #ffffff;--surface-variant: #e8ebf4;--text: #1a1b2f;--muted: #5c6378}*{box-sizing:border-box}html,body,#root{min-height:100%}body{margin:0;font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.5}a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}button,input,select{font:inherit}.app-shell{min-height:100vh;display:flex;flex-direction:column}.app-header{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:16px 20px;border-bottom:1px solid color-mix(in srgb,var(--text) 8%,transparent);background:color-mix(in srgb,var(--surface) 92%,transparent);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);position:sticky;top:0;z-index:10}.brand{display:flex;align-items:center;gap:12px;font-weight:700;font-size:1.1rem;color:var(--text)}.brand svg{width:32px;height:32px}.nav-links{display:flex;gap:8px;flex-wrap:wrap}.nav-link{padding:8px 12px;border-radius:999px;color:var(--muted);font-size:.9rem;font-weight:500}.nav-link.active,.nav-link:hover{color:var(--text);background:var(--surface-variant);text-decoration:none}.app-main{flex:1;width:min(1100px,100%);margin:0 auto;padding:24px 20px 48px}.card{background:var(--surface);border:1px solid color-mix(in srgb,var(--text) 8%,transparent);border-radius:var(--radius);padding:20px}.hero{margin-bottom:20px}.hero h1{margin:0 0 8px;font-size:1.75rem}.hero p{margin:0;color:var(--muted)}.domain-form{display:flex;gap:10px;margin-top:16px}.domain-input{flex:1;padding:14px 16px;border-radius:12px;border:1px solid color-mix(in srgb,var(--text) 12%,transparent);background:var(--surface-variant);color:var(--text)}.domain-input:focus{outline:2px solid color-mix(in srgb,var(--primary) 50%,transparent);border-color:var(--primary)}.btn{border:none;border-radius:12px;padding:12px 18px;font-weight:600;cursor:pointer;transition:transform .12s ease,opacity .12s ease}.btn:active{transform:scale(.98)}.btn-primary{background:var(--primary);color:#001014}.btn-secondary{background:var(--surface-variant);color:var(--text)}.btn:disabled{opacity:.55;cursor:not-allowed}.chip-row{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}.chip{border:1px solid color-mix(in srgb,var(--text) 12%,transparent);background:transparent;color:var(--muted);border-radius:999px;padding:6px 12px;font-size:.85rem;cursor:pointer}.chip.active{color:var(--text);border-color:var(--primary);background:color-mix(in srgb,var(--primary) 12%,transparent)}.integrity-bar{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin:16px 0;padding:12px 14px;border-radius:12px;background:color-mix(in srgb,var(--primary) 10%,var(--surface))}.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:999px;font-size:.8rem;font-weight:600}.badge.secure{background:color-mix(in srgb,var(--success) 20%,transparent);color:var(--success)}.badge.warn{background:color-mix(in srgb,#ffb300 20%,transparent);color:#ffb300}.badge.error{background:color-mix(in srgb,var(--error) 20%,transparent);color:var(--error)}.tabs{display:flex;gap:8px;margin-bottom:16px}.tab{background:transparent;border:none;color:var(--muted);padding:10px 14px;border-radius:10px;cursor:pointer;font-weight:600}.tab.active{color:var(--text);background:var(--surface-variant)}.record-list{display:flex;flex-direction:column;gap:10px}.record-item{display:grid;grid-template-columns:72px 1fr;gap:12px;padding:12px 14px;border-radius:12px;background:var(--surface-variant)}.record-type{font-weight:700;font-size:.85rem}.record-data{font-family:var(--mono);font-size:.85rem;word-break:break-all}.record-meta{grid-column:2;color:var(--muted);font-size:.75rem}.type-a{color:var(--record-a)}.type-aaaa{color:var(--record-aaaa)}.type-mx{color:var(--record-mx)}.type-txt{color:var(--record-txt)}.type-cname{color:var(--record-cname)}.type-ns{color:var(--record-ns)}.type-soa{color:var(--record-soa)}.trace-list{display:flex;flex-direction:column;gap:10px}.trace-hop{padding:14px;border-radius:12px;background:var(--surface-variant)}.trace-hop strong{display:block;margin-bottom:4px}.settings-grid{display:grid;gap:12px}.toggle-row{display:flex;align-items:center;justify-content:space-between;gap:12px}.toggle-row label{color:var(--muted);font-size:.9rem}.error-box{padding:14px;border-radius:12px;background:color-mix(in srgb,var(--error) 12%,var(--surface));color:var(--error)}.spinner{width:28px;height:28px;border:3px solid color-mix(in srgb,var(--primary) 20%,transparent);border-top-color:var(--primary);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.app-footer{padding:20px;text-align:center;color:var(--muted);font-size:.85rem;border-top:1px solid color-mix(in srgb,var(--text) 8%,transparent)}.mono-block{font-family:var(--mono);font-size:.82rem;white-space:pre-wrap;background:var(--surface-variant);padding:14px;border-radius:12px;overflow-x:auto}@media(max-width:640px){.domain-form{flex-direction:column}.record-item{grid-template-columns:1fr}.record-meta{grid-column:1}}