/* Clauden web — public landing page. Quiet, document-like layout. */

body.on-landing { overflow-y: auto; overscroll-behavior-y: auto; }
.app.landing-mode { display: block; height: auto; min-height: 100dvh; overflow: visible; }
.landing-view { display: block; width: 100%; }

.landing-view {
  --paper: #f7f5ef;
  --paper-alt: #efede6;
  --ink: #1b1a17;
  --ink-2: #4f4b44;
  --muted: #7b756a;
  --line: #ded9cf;
  --line-strong: #c4beb2;
  --clay: #c96442;
  --clay-soft: rgba(201, 100, 66, 0.1);
  --ok: #3f7a4a;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-ui);
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
html[data-theme="dark"] .landing-view {
  --paper: #131210;
  --paper-alt: #191815;
  --ink: #f0ede5;
  --ink-2: #c3bdb2;
  --muted: #948d81;
  --line: rgba(255, 255, 255, 0.13);
  --line-strong: rgba(255, 255, 255, 0.24);
  --clay: #e0805d;
  --clay-soft: rgba(224, 128, 93, 0.12);
  --ok: #8fc99a;
}

.landing-view * { box-sizing: border-box; }
.landing-view a { color: inherit; text-decoration: none; }
.landing-view a:hover { text-decoration: none; }
:where(.landing-view) button { font: inherit; color: inherit; border: 0; background: none; cursor: pointer; }
.landing-view img { max-width: 100%; }

.lp-wrap { width: min(1040px, 100%); margin: 0 auto; padding: 0 28px; }

/* ---------- type ---------- */
.lp-label {
  font-family: var(--font-mono);
  font-size: 10px;
  line-height: 1;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}
.lp-title {
  margin: 0;
  font-family: var(--font-serif);
  font-size: clamp(44px, 6vw, 64px);
  font-weight: 400;
  line-height: 1;
  letter-spacing: -0.03em;
}
.lp-h2 {
  margin: 10px 0 0;
  font-size: clamp(24px, 3vw, 30px);
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: -0.02em;
}
.lp-lead {
  margin: 18px 0 0;
  max-width: 54ch;
  font-size: 18px;
  line-height: 1.55;
  color: var(--ink-2);
}
.lp-text {
  margin: 14px 0 0;
  max-width: 62ch;
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--ink-2);
}
.lp-micro { margin: 16px 0 0; font-size: 11.5px; color: var(--muted); }

/* ---------- buttons ---------- */
.lp-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 42px;
  padding: 0 18px;
  border: 1px solid transparent;
  border-radius: 8px;
  font-size: 13.5px;
  font-weight: 500;
  white-space: nowrap;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}
.lp-btn-lg { height: 48px; padding: 0 22px; font-size: 14px; }
.lp-btn-solid { background: var(--ink); color: var(--paper); }
.lp-btn-solid:hover { background: var(--clay); color: #fff; }
.lp-btn-arrow svg { width: 15px; height: 15px; }

.lp-link-strong {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  height: 48px;
  padding: 0 2px;
  font-size: 13.5px;
  color: var(--ink-2);
  transition: color 0.15s ease;
}
.lp-link-strong:hover { color: var(--clay); }
.lp-link-strong svg { width: 15px; height: 15px; }

/* ---------- header ---------- */
.lp-head {
  position: sticky;
  top: 0;
  z-index: 20;
  background: var(--paper);
  border-bottom: 1px solid var(--line);
}
.lp-head-row {
  height: 64px;
  display: flex;
  align-items: center;
  gap: 30px;
}
.lp-brand { display: inline-flex; align-items: center; gap: 9px; flex: none; }
.lp-brand-mark { width: 22px; height: 22px; display: block; }
.lp-brand-name { font-family: var(--font-serif); font-size: 20px; letter-spacing: -0.02em; }
.lp-nav { display: flex; align-items: center; gap: 22px; flex: 1; }
.lp-nav-link { font-size: 12.5px; color: var(--ink-2); transition: color 0.15s ease; }
.lp-nav-link:hover { color: var(--clay); }
.lp-head-actions { display: flex; align-items: center; gap: 18px; flex: none; }
.lp-tg { font-size: 12px; color: var(--muted); transition: color 0.15s ease; }
.lp-tg:hover { color: var(--ink); }

/* ---------- hero ---------- */
.lp-hero { border-bottom: 1px solid var(--line); }
.lp-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  align-items: center;
  gap: 56px;
  padding-top: clamp(56px, 8vw, 92px);
  padding-bottom: clamp(56px, 7vw, 80px);
}
.lp-hero-copy { max-width: 62ch; }
.lp-hero-mark { display: flex; justify-content: center; align-items: center; }
.lp-mascot {
  width: min(230px, 100%);
  height: auto;
  display: block;
  animation: lp-bob 6s ease-in-out infinite;
}
@keyframes lp-bob {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-7px) rotate(-1.5deg); }
}
.lp-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 22px; margin-top: 28px; }

/* ---------- facts ---------- */
.lp-facts { border-bottom: 1px solid var(--line); background: var(--paper-alt); }
.lp-facts-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0; }
.lp-fact { padding: 24px 28px 24px 0; border-right: 1px solid var(--line); }
.lp-fact:last-child { border-right: 0; padding-right: 0; }
.lp-fact:not(:first-child) { padding-left: 28px; }
.lp-fact p { margin: 8px 0 0; font-size: 13px; line-height: 1.55; color: var(--ink-2); }

/* ---------- sections ---------- */
.lp-section { padding: 64px 0; border-bottom: 1px solid var(--line); scroll-margin-top: 80px; }
.lp-section-alt { background: var(--paper-alt); }
.lp-section-head { max-width: 660px; }

/* steps */
.lp-steps {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: 38px 0 0;
  padding: 0;
  border-top: 1px solid var(--line-strong);
}
.lp-step { padding: 20px 30px 0 0; border-right: 1px solid var(--line); }
.lp-step:last-child { border-right: 0; padding-right: 0; }
.lp-step:not(:first-child) { padding-left: 30px; }
.lp-step-n { font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.1em; color: var(--clay); }
.lp-step h3 { margin: 22px 0 8px; font-size: 17px; font-weight: 600; letter-spacing: -0.01em; }
.lp-step p { margin: 0; max-width: 32ch; font-size: 13px; line-height: 1.6; color: var(--ink-2); }
.lp-note { margin: 28px 0 0; max-width: 72ch; font-size: 12.5px; line-height: 1.6; color: var(--muted); }
.lp-note a { color: var(--ink-2); text-decoration: underline; text-underline-offset: 3px; }
.lp-note a:hover { color: var(--clay); }
.lp-note-plain { margin-top: 22px; }

/* notes */
.lp-notes { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: 44px; margin-top: 34px; }
.lp-note-item {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 12px;
  padding: 20px 0;
  border-top: 1px solid var(--line);
}
.lp-note-n { font-family: var(--font-mono); font-size: 10px; color: var(--muted); padding-top: 3px; }
.lp-note-item h3 { margin: 0 0 5px; font-size: 15px; font-weight: 600; letter-spacing: -0.01em; }
.lp-note-item p { margin: 0; font-size: 13px; line-height: 1.62; color: var(--ink-2); }

/* features */
.lp-features { margin: 34px 0 0; }
.lp-feature-row {
  display: grid;
  grid-template-columns: 190px minmax(0, 1fr);
  gap: 28px;
  padding: 13px 0;
  border-top: 1px solid var(--line);
}
.lp-feature-row:last-child { border-bottom: 1px solid var(--line); }
.lp-feature-row dt { font-size: 14px; font-weight: 600; }
.lp-feature-row dd { margin: 0; font-size: 13.5px; line-height: 1.55; color: var(--ink-2); }

/* apps */
.lp-apps { margin-top: 34px; border-top: 1px solid var(--line-strong); }
.lp-app-row {
  display: grid;
  grid-template-columns: 120px minmax(0, 1fr) auto;
  align-items: center;
  gap: 20px;
  padding: 17px 2px;
  border-bottom: 1px solid var(--line);
  transition: color 0.15s ease, padding 0.15s ease;
}
.lp-app-row:hover { color: var(--clay); padding-left: 6px; }
.lp-app-label { font-size: 15px; font-weight: 600; }
.lp-app-value { font-family: var(--font-mono); font-size: 11.5px; letter-spacing: 0.02em; color: var(--muted); }
.lp-app-action { display: inline-flex; align-items: center; gap: 7px; font-size: 12.5px; }
.lp-app-action svg { width: 14px; height: 14px; }

/* faq */
.lp-faq-wrap { display: grid; grid-template-columns: 240px minmax(0, 1fr); gap: 48px; align-items: start; }
.lp-faq { border-top: 1px solid var(--line-strong); }
.lp-faq-item { border-bottom: 1px solid var(--line); }
.lp-faq-q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 15px 0;
  cursor: pointer;
  list-style: none;
  font-size: 14px;
  font-weight: 500;
}
.lp-faq-q::-webkit-details-marker { display: none; }
.lp-faq-mark { width: 20px; height: 20px; display: inline-flex; align-items: center; justify-content: center; color: var(--muted); transition: transform 0.18s ease, color 0.18s ease; flex: none; }
.lp-faq-mark svg { width: 12px; height: 12px; }
.lp-faq-item[open] .lp-faq-mark { transform: rotate(45deg); color: var(--clay); }
.lp-faq-a { margin: -2px 0 18px; padding-right: 36px; font-size: 13px; line-height: 1.65; color: var(--ink-2); }

/* contact */
.lp-contact { border-bottom: 1px solid var(--line); }
.lp-contact-row { display: flex; align-items: center; justify-content: space-between; gap: 30px; padding-top: 42px; padding-bottom: 42px; }
.lp-contact .lp-h2 { margin-top: 0; }
.lp-contact-link { display: inline-flex; align-items: center; gap: 8px; font-size: 18px; color: var(--clay); border-bottom: 1px solid transparent; }
.lp-contact-link:hover { border-color: var(--clay); }
.lp-contact-link svg { width: 16px; height: 16px; }

/* footer */
.lp-footer { padding: 26px 0 22px; background: var(--paper-alt); }
.lp-footer-row { display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.lp-footer-brand { display: inline-flex; align-items: center; gap: 8px; font-size: 12px; color: var(--muted); }
.lp-footer-mark { width: 18px; height: 18px; display: block; }
.lp-footer-links { display: flex; align-items: center; gap: 20px; font-size: 12px; color: var(--ink-2); }
.lp-footer-links a:hover, .lp-footer-links button:hover { color: var(--clay); }
.lp-footer-note { margin-top: 14px; font-size: 10.5px; line-height: 1.5; color: var(--muted); }

/* auth pages */
.auth-home {
  position: fixed; top: 22px; left: 24px; z-index: 5;
  display: inline-flex; align-items: center; gap: 8px;
  padding: 7px 12px 7px 8px; border: 1px solid var(--border); border-radius: 999px;
  background: var(--bg-elev); color: var(--text-2); font-size: 12px;
  transition: color 0.15s ease, border-color 0.15s ease;
}
.auth-home:hover { color: var(--text); border-color: var(--border-strong); text-decoration: none; }
.auth-home img { width: 20px; height: 20px; display: block; }
.auth-foot { margin-top: 18px; text-align: center; font-size: 11px; color: var(--text-3); }
.auth-foot a { color: var(--text-2); text-decoration: underline; text-underline-offset: 3px; }

/* ---------- responsive ---------- */
@media (max-width: 900px) {
  .lp-nav { display: none; }
  .lp-head-actions { margin-left: auto; }
  .lp-hero-grid { grid-template-columns: 1fr; gap: 30px; }
  .lp-hero-mark { order: -1; justify-content: flex-start; }
  .lp-mascot { width: 108px; }
  .lp-facts-grid { grid-template-columns: 1fr; }
  .lp-fact, .lp-fact:not(:first-child) { padding: 16px 0; border-right: 0; border-bottom: 1px solid var(--line); }
  .lp-fact:last-child { border-bottom: 0; }
  .lp-steps { grid-template-columns: 1fr; }
  .lp-step, .lp-step:not(:first-child) { padding: 18px 0; border-right: 0; border-bottom: 1px solid var(--line); }
  .lp-step:last-child { border-bottom: 0; }
  .lp-notes { grid-template-columns: 1fr; column-gap: 0; }
  .lp-faq-wrap { grid-template-columns: 1fr; gap: 24px; }
  .lp-feature-row { grid-template-columns: 1fr; gap: 4px; }
  .lp-contact-row { align-items: flex-start; flex-direction: column; gap: 16px; }
}
@media (max-width: 640px) {
  .lp-wrap { padding: 0 20px; }
  .lp-head-row { height: 58px; gap: 16px; }
  .lp-tg { display: none; }
  .lp-title { font-size: 44px; }
  .lp-lead { font-size: 16px; }
  .lp-hero-grid { padding-top: 36px; padding-bottom: 44px; }
  .lp-actions { gap: 14px; }
  .lp-section { padding: 46px 0; }
  .lp-app-row { grid-template-columns: 84px minmax(0, 1fr) auto; gap: 10px; }
  .lp-app-value { font-size: 10.5px; }
  .lp-faq-a { padding-right: 0; }
  .auth-home { top: 12px; left: 12px; }
}