:root{--c-bg: #fbfaf8;--c-surface-1: #f6f4f1;--c-surface-2: #ffffff;--c-text: #161817;--c-text-2: #3a3e3c;--c-text-3: #6b716e;--c-hairline: rgba(22, 24, 23, .08);--c-hairline-strong: rgba(22, 24, 23, .12);--c-accent: #e11d48;--c-accent-2: rgba(225, 29, 72, .12);--c-accent-3: rgba(225, 29, 72, .22);--c-focus: rgba(225, 29, 72, .38);--c-danger: #b24a3a;--c-danger-bg: rgba(178, 74, 58, .1);--font-sans: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, "Helvetica Neue", Arial, "Apple Color Emoji", "Segoe UI Emoji";--font-serif: ui-serif, Georgia, Cambria, "Times New Roman", Times, serif;--font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;--fs-12: .75rem;--fs-14: .875rem;--fs-16: 1rem;--fs-18: 1.125rem;--fs-20: 1.25rem;--fs-24: 1.5rem;--fs-30: 1.875rem;--fs-36: 2.25rem;--fs-44: 2.75rem;--fs-title: clamp(1.55rem, 1.2rem + 1.2vw, 2.25rem);--fs-h1: clamp(1.95rem, 1.55rem + 1.6vw, 2.75rem);--fs-h2: clamp(1.35rem, 1.15rem + .8vw, 1.75rem);--lh-tight: 1.2;--lh-body: 1.6;--lh-relaxed: 1.75;--ls-tight: -.012em;--ls-normal: 0em;--sp-2: .125rem;--sp-4: .25rem;--sp-6: .375rem;--sp-8: .5rem;--sp-12: .75rem;--sp-16: 1rem;--sp-20: 1.25rem;--sp-24: 1.5rem;--sp-32: 2rem;--sp-40: 2.5rem;--sp-48: 3rem;--sp-64: 4rem;--sp-80: 5rem;--r-8: .5rem;--r-12: .75rem;--r-16: 1rem;--r-20: 1.25rem;--shadow-0: none;--shadow-1: 0 1px 0 rgba(22, 24, 23, .06);--shadow-2: 0 1px 0 rgba(22, 24, 23, .06), 0 10px 22px rgba(22, 24, 23, .055);--shadow-3: 0 1px 0 rgba(22, 24, 23, .06), 0 14px 34px rgba(22, 24, 23, .06);--ease-standard: cubic-bezier(.2, 0, 0, 1);--ease-exit: cubic-bezier(.4, 0, 1, 1);--ease-enter: cubic-bezier(0, 0, .2, 1);--dur-120: .12s;--dur-180: .18s;--dur-240: .24s;--dur-320: .32s;--dur-420: .42s;--container-max: 72rem;--reading-max: 46rem}@media (prefers-color-scheme: dark){:root{--c-bg: #0f1110;--c-surface-1: #141716;--c-surface-2: #171b19;--c-text: #f1f0ed;--c-text-2: rgba(241, 240, 237, .78);--c-text-3: rgba(241, 240, 237, .58);--c-hairline: rgba(241, 240, 237, .1);--c-hairline-strong: rgba(241, 240, 237, .16);--c-accent: #fb7185;--c-accent-2: rgba(251, 113, 133, .16);--c-accent-3: rgba(251, 113, 133, .28);--c-focus: rgba(251, 113, 133, .42);--shadow-1: 0 1px 0 rgba(0, 0, 0, .25);--shadow-2: 0 1px 0 rgba(0, 0, 0, .25), 0 16px 34px rgba(0, 0, 0, .32);--shadow-3: 0 1px 0 rgba(0, 0, 0, .25), 0 22px 48px rgba(0, 0, 0, .38)}}@media (prefers-reduced-motion: reduce){:root{--dur-120: 0ms;--dur-180: 0ms;--dur-240: 0ms;--dur-320: 0ms;--dur-420: 0ms}}*,*:before,*:after{box-sizing:border-box}html,body{height:100%}body{margin:0;font-family:var(--font-sans);font-size:var(--fs-16);line-height:var(--lh-body);letter-spacing:var(--ls-normal);color:var(--c-text);background:var(--c-bg);text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{color:inherit;text-decoration:none}.link{text-decoration:underline;text-decoration-color:#1618172e;text-underline-offset:.18em;transition:text-decoration-color var(--dur-180) var(--ease-standard),color var(--dur-180) var(--ease-standard)}.link:hover{color:var(--c-accent);text-decoration-color:var(--c-accent-3)}.link:focus-visible{outline:3px solid var(--c-focus);outline-offset:3px;border-radius:var(--r-8)}.container{max-width:var(--container-max);margin-inline:auto;padding-inline:var(--sp-24)}.stack{display:flex;flex-direction:column;gap:var(--sp-16)}.stack-lg{gap:var(--sp-32)}.cluster{display:flex;flex-wrap:wrap;gap:var(--sp-12);align-items:center}.reading{max-width:var(--reading-max)}.eyebrow{font-size:var(--fs-12);letter-spacing:.08em;text-transform:uppercase;color:var(--c-text-3)}.h1{font-size:var(--fs-h1);letter-spacing:var(--ls-tight);line-height:var(--lh-tight);margin:0}.h2{font-size:var(--fs-h2);letter-spacing:var(--ls-tight);line-height:1.28;margin:0}.muted{color:var(--c-text-2)}.quiet{color:var(--c-text-3)}.card{background:var(--c-surface-2);border-radius:var(--r-16);border:1px solid var(--c-hairline);box-shadow:var(--shadow-1)}.card-pad{padding:var(--sp-24)}.card:hover{border-color:var(--c-hairline-strong)}.btn{-webkit-appearance:none;-moz-appearance:none;appearance:none;border:1px solid var(--c-hairline);background:transparent;color:var(--c-text);padding:var(--sp-8) var(--sp-12);border-radius:var(--r-12);font:inherit;cursor:pointer;transition:background var(--dur-180) var(--ease-standard),border-color var(--dur-180) var(--ease-standard),transform var(--dur-120) var(--ease-standard)}.btn:hover{background:var(--c-surface-1);border-color:var(--c-hairline-strong)}.btn:active{transform:translateY(.5px)}.btn:focus-visible{outline:3px solid var(--c-focus);outline-offset:3px}.btn-accent{border-color:#e11d4847;background:linear-gradient(135deg,var(--c-accent-2),var(--c-accent-3));position:relative;overflow:hidden}.btn-accent:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:linear-gradient(135deg,transparent,rgba(255,255,255,.2),transparent);transform:translate(-100%);transition:transform var(--dur-420) var(--ease-standard)}.btn-accent:hover:before{transform:translate(100%)}.btn-accent:hover{background:linear-gradient(135deg,var(--c-accent-3),var(--c-accent));border-color:#e11d4880;box-shadow:0 4px 16px #e11d4833}.input{width:100%;border:1px solid var(--c-hairline);border-radius:var(--r-12);padding:var(--sp-12) var(--sp-12);background:#ffffffa6;color:var(--c-text);transition:border-color var(--dur-180) var(--ease-standard),box-shadow var(--dur-180) var(--ease-standard),background var(--dur-180) var(--ease-standard)}.input:focus{outline:none;border-color:#e11d486b;box-shadow:0 0 0 4px var(--c-accent-2);background:#ffffffd1}.skeleton{position:relative;overflow:hidden;border-radius:var(--r-12);background:color-mix(in srgb,var(--c-surface-1) 78%,transparent)}.skeleton:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;transform:translate(-120%);background:linear-gradient(90deg,transparent,rgba(255,255,255,.38),transparent);animation:skel-shimmer var(--dur-420) var(--ease-standard) infinite}.skeleton-line{height:.9rem}.skeleton-gap{margin-top:var(--sp-8)}@keyframes skel-shimmer{0%{transform:translate(-120%)}to{transform:translate(120%)}}.takeaways{background:var(--c-surface-1);border-radius:var(--r-16);padding:var(--sp-20);text-align:left}.takeaways h3{margin:0 0 var(--sp-12) 0;font-size:var(--fs-16)}.takeaways ul{margin:0;padding-left:var(--sp-20)}.takeaways li{margin-bottom:var(--sp-8);color:var(--c-text-2)}.chat{display:flex;flex-direction:column;gap:var(--sp-16)}.msg{max-width:var(--reading-max)}.msg.user{margin-left:auto}.bubble{border-radius:var(--r-16);border:1px solid var(--c-hairline);background:var(--c-surface-2);padding:var(--sp-16) var(--sp-16);box-shadow:var(--shadow-1)}.msg.user .bubble{background:color-mix(in srgb,var(--c-accent-2) 60%,var(--c-surface-2));border-color:#e11d4838}.msg-meta{display:flex;align-items:baseline;justify-content:space-between;gap:var(--sp-12);margin-bottom:var(--sp-8);color:var(--c-text-3);font-size:var(--fs-14)}.composer{display:flex;gap:var(--sp-12);align-items:center;max-width:var(--reading-max)}.composer .input{flex:1}