:root { color-scheme: light; --mh-bg:#f7f9f4; --mh-text:#153c2b; --mh-secondary:#526759; --mh-accent:#23774b; --mh-line:#dce5d9; font-family:Inter,'Segoe UI',Arial,sans-serif; background:var(--mh-bg); color:var(--mh-text); overflow-wrap:break-word; }
* { box-sizing:border-box; }
body { margin:0; }
[hidden] { display:none !important; }
button,input,textarea { font:inherit; }
button { cursor:pointer; }
button:disabled { cursor:default; opacity:.5; }
a { color:var(--mh-text); text-underline-offset:4px; }
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible,textarea:focus-visible { outline:3px solid var(--mh-accent); outline-offset:4px; }
.topbar { padding:28px 7%; border-bottom:1px solid var(--mh-line); display:flex; align-items:center; flex-wrap:wrap; gap:20px; }
.mh-brand { font-size:23px; letter-spacing:2px; font-weight:750; text-decoration:none; }
.mh-dot { color:var(--mh-accent); }
.mh-founder { max-width:100%; min-width:0; display:flex; align-items:center; gap:12px; border-left:1px solid var(--mh-line); padding-left:1px; }
.mh-founder img { width:54px; height:54px; object-fit:cover; object-position:center 30%; border-radius:50%; flex-shrink:0; }
.mh-founder-copy { display:flex; flex-direction:column; gap:6px; max-width:430px; min-width:0; text-align:center; }
.mh-founder-copy a { font-size:13px; font-weight:600; align-self:flex-start; text-align:left; }
.mh-founder-copy small { font-size:12px; line-height:1.5; color:var(--mh-secondary); }
.topbar nav { margin-left:auto; }
.topbar nav a { background:var(--mh-accent); color:var(--mh-bg); display:inline-flex; align-items:center; min-height:44px; padding:9px 13px; border:1px solid var(--mh-line); border-radius:7px; font-size:13px; text-decoration:none; }
main { padding:64px 7% 58px; max-width:1100px; margin-inline:auto; }
#demonstration { text-align:center; }
#workspace { text-align:left; }
.contact-intro { text-align:center; }
.contact-intro a { justify-content:center; }
section { scroll-margin-top:24px; }
.mh-label { display:flex; justify-content:center; align-items:center; gap:9px; font-size:14px; letter-spacing:1.5px; text-transform:uppercase; color:var(--mh-secondary); margin-bottom:27px; }
.mh-label::before { content:''; width:7px; height:7px; border-radius:50%; background:var(--mh-accent); flex-shrink:0; }
h1 { font-size:clamp(38px,6.7vw,68px); line-height:1.06; letter-spacing:-2.5px; font-weight:650; margin:0 auto 27px; max-width:760px; }
h1 span { color:var(--mh-accent); }
.mh-description { font-size:18px; line-height:1.7; max-width:590px; color:var(--mh-secondary); margin:0 auto 32px; }
.mh-description strong { color:var(--mh-text); font-weight:600; }
.mh-dialogue { max-width:680px; background:#fff; border:1px solid var(--mh-line); border-radius:16px; box-shadow:0 12px 36px #193c2910; padding:23px; margin:27px auto 0; }
#composer label { display:block; font-size:13px; font-weight:600; letter-spacing:.2px; margin-bottom:14px; }
#message { width:100%; min-height:100px; max-height:300px; resize:vertical; border:0; background:transparent; color:var(--mh-text); font:17px/1.65 'Segoe UI',Arial,sans-serif; padding:0; margin:0 0 15px; }
.mh-compose-bottom { display:flex; align-items:center; justify-content:space-between; gap:18px; flex-wrap:wrap; }
.mh-compose-bottom small { font-size:12px; color:var(--mh-secondary); }
button { font:600 14px 'Segoe UI',Arial,sans-serif; display:inline-flex; align-items:center; justify-content:center; gap:20px; padding:13px 19px; min-height:46px; border:0; border-radius:7px; background:var(--mh-text); color:var(--mh-bg); }
.conversation-heading { display:flex; align-items:center; justify-content:space-between; gap:12px; padding-bottom:14px; border-bottom:1px solid var(--mh-line); margin-bottom:18px; }
.conversation-heading h2 { font-size:17px; font-weight:600; margin:0; }
#reset,#preview,#connect { background:transparent; color:var(--mh-secondary); padding:8px 0; font-weight:400; font-size:13px; min-height:44px; text-decoration:underline; text-underline-offset:3px; }
.messages:empty { display:none; }
.messages { max-height:440px; overflow-y:auto; overscroll-behavior-y:contain; padding:0 2px 18px; }
.message { padding:16px 0; }
.message-label { font-size:12px; letter-spacing:.6px; color:var(--mh-secondary); margin-bottom:9px; }
.message-body { font-size:16px; line-height:1.7; white-space:pre-wrap; overflow-wrap:anywhere; }
.message.user { padding:14px 16px; margin:0 0 4px 22px; background:#f0f5ec; border-radius:10px; }
.message.user .message-label { display:none; }
.thinking { font-size:14px; color:var(--mh-secondary); line-height:1.6; }
.error { border:1px solid #e5c6b6; background:#fff3ec; color:#7b3926; padding:14px; border-radius:8px; margin:14px 0; font-size:14px; line-height:1.6; }
.error button { background:transparent; color:inherit; font-weight:400; padding:8px 0; margin-right:20px; text-decoration:underline; }
.status-line { margin-top:12px; font-size:12px; line-height:1.6; color:var(--mh-secondary); display:flex; gap:10px; flex-wrap:wrap; align-items:center; }
.summary-button { margin-top:18px; background:#eef3e9; color:var(--mh-text); border:1px solid var(--mh-line); width:100%; font-weight:500; text-align:left; justify-content:flex-start; }
.team-offer { margin-top:22px; padding-top:18px; border-top:1px solid var(--mh-line); }
.team-offer h2 { font-size:17px; font-weight:500; line-height:1.5; }
.team-offer a { font-size:14px; display:inline-flex; align-items:center; min-height:44px; }
.contact-section { display:grid; grid-template-columns:minmax(0,1fr) minmax(0,1fr); gap:30px; background:#edf2e7; border:1px solid var(--mh-line); border-radius:14px; margin-top:64px; padding:28px; }
.section-label { font-size:12px; letter-spacing:1px; color:var(--mh-secondary); }
.contact-intro h2 { font-size:28px; line-height:1.2; font-weight:600; margin:18px 0; letter-spacing:-.8px; }
.contact-intro p { font-size:15px; line-height:1.7; color:var(--mh-secondary); }
.contact-intro a { display:flex; align-items:center; min-height:44px; font-size:14px; }
.contact-direct { font-weight:600; }
#contact-form { padding:20px; background:white; border:1px solid var(--mh-line); border-radius:10px; }
#contact-notice { font-size:13px; line-height:1.7; color:var(--mh-secondary); margin:0 0 18px; }
#contact-form label,dialog label { display:block; font-size:13px; margin:16px 0 8px; }
#contact-form input,#api-key { width:100%; min-height:44px; border:1px solid #aabdac; border-radius:6px; padding:10px; color:var(--mh-text); font-size:16px; background:white; }
.connection-actions { display:flex; gap:12px; justify-content:flex-end; flex-wrap:wrap; margin-top:22px; }
#prepare-contact { width:100%; font-size:13px; }
#contact-mailto { display:block; min-height:44px; margin-top:18px; font-size:14px; line-height:1.5; }
footer { padding:0 7% 28px; display:flex; align-items:flex-end; justify-content:space-between; gap:22px; font-size:12px; color:var(--mh-secondary); max-width:1100px; }
details { max-width:400px; text-align:right; }
summary { cursor:pointer; min-height:44px; display:flex; align-items:center; justify-content:flex-end; }
details p { line-height:1.7; }
dialog { width:min(460px,calc(100% - 32px)); border:1px solid var(--mh-line); border-radius:12px; padding:24px; color:var(--mh-text); background:var(--mh-bg); }
dialog::backdrop { background:#153c2b66; }
dialog h2 { font-size:24px; margin:0 0 14px; }
dialog p { font-size:15px; line-height:1.6; color:var(--mh-secondary); }
.show-key { display:flex; align-items:center; gap:8px; min-height:44px; }
#cancel-connection { background:#e7eee1; color:var(--mh-text); }
.connection-error { color:#7b3926; }
@media(max-width:900px) { .messages { max-height:none; overflow:visible; overscroll-behavior-y:auto; } }
@media(max-width:600px) { .contact-section { grid-template-columns:minmax(0,1fr); gap:20px; padding:20px; } footer { flex-direction:column; align-items:flex-start; gap:4px; } details { text-align:left; } summary { justify-content:flex-start; } }
@media(max-width:480px) {
  .topbar { padding:22px 7%; }
  main { padding-top:42px; padding-bottom:38px; }
  h1 { letter-spacing:-1.3px; }
  .mh-description { font-size:16px; }
  .mh-label { font-size:11px; letter-spacing:1px; }
  .mh-dialogue { padding:18px; }
  #message { font-size:16px; min-height:132px; }
  .mh-compose-bottom { gap:14px; }
  .mh-compose-bottom button { width:100%; }
  .conversation-heading { flex-wrap:wrap; gap:6px; }
  .message.user { margin-left:12px; }
}
@media(max-width:400px) { .mh-founder { padding-left:0; border-left:0; } .topbar { gap:14px; position:relative; } .topbar nav { position:absolute; top:16px; right:7%; margin-left:0; } }
@media(prefers-reduced-motion:reduce) { * { scroll-behavior:auto !important; } }

.alternatives-section { margin-top:56px; text-align:center; }
.alternatives-section h2 { font-size:clamp(26px,4vw,36px); line-height:1.2; letter-spacing:-1px; max-width:680px; margin:0 auto 28px; }
.alternatives-table { width:100%; border-collapse:collapse; table-layout:fixed; text-align:left; font-size:16px; line-height:1.65; }
.alternatives-table th,.alternatives-table td { padding:20px 18px; vertical-align:top; border-bottom:1px solid var(--mh-line); overflow-wrap:anywhere; }
.alternatives-table thead th { color:var(--mh-secondary); font-size:12px; font-weight:600; }
.alternatives-table tbody th { font-weight:600; }
.alternatives-table td:last-child { background:#edf2e7; }
.alternative-mobile-label { display:none; }
.alternatives-invitation { max-width:560px; margin:28px auto 18px; line-height:1.65; color:var(--mh-secondary); }
.alternatives-cta { display:inline-flex; align-items:center; gap:18px; padding:14px 22px; min-height:46px; border-radius:7px; background:var(--mh-accent); color:var(--mh-bg); text-decoration:none; font-weight:600; font-size:14px; }
.visually-hidden { position:absolute; width:1px; height:1px; padding:0; margin:-1px; overflow:hidden; clip-path:inset(50%); white-space:nowrap; border:0; }
@media(max-width:700px) {
 .alternatives-section { margin-top:36px; }
 .alternatives-table,.alternatives-table tbody { display:block; }
 .alternatives-table thead { position:absolute; width:1px; height:1px; overflow:hidden; clip-path:inset(50%); }
 .alternatives-table tr { display:block; border:1px solid var(--mh-line); border-radius:12px; margin-bottom:16px; overflow:hidden; background:white; }
 .alternatives-table th,.alternatives-table td { display:block; width:100%; border:0; padding:14px 18px; }
 .alternative-mobile-label { display:block; font-size:11px; font-weight:600; color:var(--mh-secondary); margin-bottom:5px; }
}

.alternatives-table th:first-child { width:25%; }
.alternatives-table th:nth-child(2) { width:35%; }
.alternatives-table th:nth-child(3) { width:40%; }
.alternatives-cta { background:var(--mh-text); }
#workspace:focus-visible { outline:3px solid var(--mh-accent); outline-offset:4px; }
@media(max-width:700px) { .alternatives-table th:first-child { width:100%; } }

#access-form { max-width:460px; margin:28px 0; display:grid; gap:16px; }
#access-form input { width:100%; min-height:46px; padding:12px; border:1px solid var(--mh-line); border-radius:7px; }
#access-error { color:#7b3926; line-height:1.6; }


.session-limit { font-size:12px; line-height:1.6; color:var(--mh-secondary); margin:14px 0; }
.storage-notice { font-size:12px; line-height:1.6; color:var(--mh-secondary); text-align:left; margin:0 0 14px; }

.advice-feedback { margin-top:24px; padding-top:24px; border-top:1px solid var(--mh-line); text-align:left; font-size:16px; }
.advice-feedback h2 { font-size:16px; line-height:1.5; margin:0 0 12px; font-weight:600; }
.feedback-choices { display:flex; gap:12px; margin-bottom:16px; }
.feedback-choices button { min-width:80px; min-height:44px; padding:10px 18px; background:transparent; color:var(--mh-text); border:1px solid var(--mh-secondary); border-radius:7px; font:inherit; cursor:pointer; }
.feedback-choices button[aria-pressed="true"] { background:var(--mh-text); color:var(--mh-bg); }
.advice-feedback label { display:block; line-height:1.5; margin-bottom:8px; }
.advice-feedback textarea { display:block; width:100%; box-sizing:border-box; min-height:90px; padding:12px; font:inherit; border:1px solid var(--mh-secondary); border-radius:7px; resize:vertical; }
.advice-feedback button:focus-visible,.advice-feedback textarea:focus-visible { outline:3px solid var(--mh-accent); outline-offset:3px; }
.advice-feedback p { font-size:14px; line-height:1.6; color:var(--mh-secondary); margin:12px 0 0; }
.advice-feedback [hidden] { display:none; }