:root{--surface-000: #ffffff;--surface-050: #f4f8fb;--surface-100: #e5eef7;--surface-raised: #ffffff;--line: #d3e0ea;--line-strong: #7d93a8;--ink-900: #0b1d33;--ink-700: #2b3f5a;--ink-500: #5a6b80;--brand-500: #188ac0;--action: #1f73b0;--action-hover: #175e93;--on-action: #ffffff;--link: #0f6a98;--teal-400: #43ccb2;--teal-700: #127a72;--focus: #1f73b0;--success: #1a7f6e;--warning: #a35a00;--danger: #c2392f;--page-paper: #fffdf8;--page-ink: #1f1d1a;--shadow-card: 0 1px 2px rgba(11, 29, 51, .06), 0 8px 24px rgba(11, 29, 51, .06);--shadow-cta: 0 8px 20px rgba(31, 115, 176, .28);--shadow-page: 0 2px 6px rgba(31, 29, 26, .12), 0 18px 40px rgba(31, 29, 26, .14);--font-sans: "Plus Jakarta Sans", "Segoe UI", system-ui, sans-serif;--font-read: Literata, Georgia, "Times New Roman", serif;--space-1: 4px;--space-2: 8px;--space-3: 12px;--space-4: 16px;--space-6: 24px;--space-8: 32px;--space-12: 48px;--space-16: 64px;--radius-sm: 8px;--radius-md: 16px;--radius-lg: 28px;--radius-pill: 999px;color-scheme:light}@media (prefers-color-scheme: dark){:root:not([data-theme=light]){--surface-000: #0a1626;--surface-050: #0f1f33;--surface-100: #16293f;--surface-raised: #132840;--line: #24405c;--line-strong: #5d7894;--ink-900: #eef4fa;--ink-700: #c4d3e2;--ink-500: #8fa3b8;--brand-500: #3aa9dc;--action: #4fb6e3;--action-hover: #7cc9ec;--on-action: #04182a;--link: #6cc3ec;--teal-700: #43ccb2;--focus: #7cc9ec;--success: #4fd1b4;--warning: #f0b04a;--danger: #f07a6e;--page-paper: #1b1915;--page-ink: #e9e3d8;--shadow-card: 0 1px 2px rgba(0, 0, 0, .4), 0 8px 24px rgba(0, 0, 0, .3);--shadow-cta: 0 8px 20px rgba(0, 0, 0, .45);--shadow-page: 0 2px 6px rgba(0, 0, 0, .5), 0 18px 40px rgba(0, 0, 0, .5);color-scheme:dark}}:root[data-theme=dark]{--surface-000: #0a1626;--surface-050: #0f1f33;--surface-100: #16293f;--surface-raised: #132840;--line: #24405c;--line-strong: #5d7894;--ink-900: #eef4fa;--ink-700: #c4d3e2;--ink-500: #8fa3b8;--brand-500: #3aa9dc;--action: #4fb6e3;--action-hover: #7cc9ec;--on-action: #04182a;--link: #6cc3ec;--teal-700: #43ccb2;--focus: #7cc9ec;--success: #4fd1b4;--warning: #f0b04a;--danger: #f07a6e;--page-paper: #1b1915;--page-ink: #e9e3d8;--shadow-card: 0 1px 2px rgba(0, 0, 0, .4), 0 8px 24px rgba(0, 0, 0, .3);--shadow-cta: 0 8px 20px rgba(0, 0, 0, .45);--shadow-page: 0 2px 6px rgba(0, 0, 0, .5), 0 18px 40px rgba(0, 0, 0, .5);color-scheme:dark}*,*:before,*:after{box-sizing:border-box}body{margin:0;background:var(--surface-000);color:var(--ink-900);font:400 16px / 26px var(--font-sans);-webkit-font-smoothing:antialiased}h1,h2,h3{text-wrap:balance}a{color:var(--link)}:focus-visible{outline:2px solid var(--focus);outline-offset:2px}@media (prefers-reduced-motion: reduce){*{transition:none!important;animation:none!important}}.shell{max-width:1120px;margin:0 auto;padding-inline:max(var(--space-4),env(safe-area-inset-left,0px))}.topbar{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:var(--space-4);padding-block:var(--space-4)}.brand{display:inline-flex}.brand img{display:block;height:44px;width:auto}.topbar__end{display:flex;align-items:center;gap:var(--space-4)}.api-status{display:inline-flex;align-items:center;gap:var(--space-2);font-size:13px;line-height:18px;font-weight:600;color:var(--ink-500)}.api-status:before{content:"";width:8px;height:8px;border-radius:var(--radius-pill);background:currentColor}.api-status--online{color:var(--success)}.api-status--offline{color:var(--danger)}.k-btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-2);min-height:44px;padding:10px 22px;border:1.5px solid transparent;border-radius:var(--radius-pill);background:transparent;color:var(--ink-900);font:600 14px / 20px var(--font-sans);text-decoration:none;cursor:pointer;transition:background-color .15s,box-shadow .15s}.k-btn:disabled{opacity:.45;cursor:not-allowed}.k-btn--primary{background:var(--action);color:var(--on-action)}.k-btn--primary:hover:not(:disabled){background:var(--action-hover)}.k-btn--featured{padding:14px 28px;background:linear-gradient(100deg,var(--action),var(--teal-700));color:var(--on-action);font-size:16px;box-shadow:var(--shadow-cta)}.k-btn--secondary{border-color:var(--line-strong);color:var(--link)}.k-btn--secondary:hover:not(:disabled){background:var(--surface-100)}.k-btn--ghost{padding-inline:var(--space-2);text-decoration:underline;text-underline-offset:4px}.k-btn--danger{background:var(--danger);color:var(--surface-000)}.k-card{display:flex;flex-direction:column;gap:var(--space-3);padding:var(--space-6);border:1px solid var(--line);border-radius:var(--radius-md);background:var(--surface-raised);box-shadow:var(--shadow-card);color:var(--ink-700);font-size:15px;line-height:24px;min-width:0}.k-card__icon{display:grid;place-items:center;width:44px;height:44px;border-radius:var(--radius-sm);background:var(--surface-100);color:var(--action)}.k-card__title{margin:0;color:var(--ink-900);font-size:20px;line-height:28px;font-weight:700}.k-card p{margin:0}.k-field{display:flex;flex-direction:column;gap:6px}.k-field label{font-size:14px;line-height:20px;font-weight:600}.k-field input{padding:10px 14px;border:1.5px solid var(--line-strong);border-radius:var(--radius-sm);background:var(--surface-000);color:var(--ink-900);font:400 16px / 24px var(--font-sans)}.k-field input::placeholder{color:var(--ink-500)}.k-field small{font-size:13px;line-height:18px;color:var(--ink-500)}.k-field--error input{border-color:var(--danger)}.k-field--error small{color:var(--danger)}.hero{display:flex;flex-direction:column;gap:var(--space-6);max-width:640px;padding-block:var(--space-12) var(--space-16)}.hero h1{margin:0;font-size:clamp(34px,6vw,48px);line-height:1.15;font-weight:800;letter-spacing:-.02em}.hero p{margin:0;font-size:18px;line-height:30px;color:var(--ink-700)}.hero__actions{display:flex;flex-wrap:wrap;align-items:center;gap:var(--space-4)}.features{display:flex;flex-direction:column;gap:var(--space-6);padding-bottom:var(--space-16)}.features h2{margin:0;font-size:28px;line-height:36px;font-weight:700}.features__grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:var(--space-8)}.reader{max-width:680px;margin-inline:auto;padding:var(--space-12) var(--space-8);border-radius:8px;background:var(--page-paper);box-shadow:var(--shadow-page);color:var(--page-ink);font:400 19px / 31px var(--font-read)}.reader h1{font:600 30px / 38px var(--font-read);margin-top:0}