/* ALab home — warm paper editorial system on the edge-peek brand.
   palette: paper #f3f0e7 / ink #1a1b16 / green #2f7d62 / deep #276a53 / cream #ecf5f0 */

.home-page {
  --hm-bg: #f3f0e7;
  --hm-bg-soft: #ebe7da;
  --hm-surface: #fdfcf6;
  --hm-ink: #1a1b16;
  --hm-muted: #64675a;
  --hm-faint: #979a8b;
  --hm-line: rgb(26 27 22 / 10%);
  --hm-line-strong: rgb(26 27 22 / 18%);
  --hm-green: #2f7d62;
  --hm-green-deep: #276a53;
  --hm-green-soft: rgb(47 125 98 / 10%);
  --hm-cream: #ecf5f0;
  --hm-dark: #161a14;
  --hm-serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, "Times New Roman", serif;

  box-sizing: border-box;
  position: relative;
  min-height: var(--alab-viewport-height, 100dvh);
  padding-top: env(safe-area-inset-top);
  padding-bottom: env(safe-area-inset-bottom);
  overflow-x: clip;
  background: var(--hm-bg);
  color: var(--hm-ink);
  font-family:
    Inter, system-ui, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

.home-page *,
.home-page *::before,
.home-page *::after {
  box-sizing: border-box;
}

.home-page h1,
.home-page h2,
.home-page h3,
.home-page p,
.home-page ol,
.home-page ul {
  margin: 0;
}

.home-page ol,
.home-page ul {
  padding: 0;
  list-style: none;
}

.home-page :where(a) {
  color: inherit;
  text-decoration: none;
}

/* Keep the wordmark readable on this permanently light page,
   regardless of the app's data-theme. */
.home-page .threadlab-logo-wordmark-image {
  color: var(--hm-ink);
  filter: none;
}

.home-shell {
  width: min(100%, 1160px);
  margin: 0 auto;
  padding-right: clamp(20px, 5vw, 48px);
  padding-left: clamp(20px, 5vw, 48px);
}

.home-skip {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 60;
  padding: 8px 14px;
  border-radius: 8px;
  background: var(--hm-green);
  color: var(--hm-cream);
  font-size: 14px;
  transform: translateY(-160%);
}

.home-skip:focus {
  transform: translateY(0);
}

/* Scroll reveal */
.home-page [data-reveal] {
  opacity: 0;
  transform: translateY(22px);
  transition:
    opacity 700ms cubic-bezier(0.2, 0, 0, 1),
    transform 700ms cubic-bezier(0.2, 0, 0, 1);
  transition-delay: var(--reveal-delay, 0ms);
}

.home-page [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

/* Header */
.home-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid var(--hm-line);
  background: rgb(243 240 231 / 80%);
  backdrop-filter: blur(14px);
}

.home-header__inner {
  display: flex;
  min-height: 66px;
  align-items: center;
  gap: 26px;
}

.home-brand {
  display: inline-flex;
  align-items: center;
  flex: 0 0 auto;
}

.home-nav {
  display: flex;
  align-items: center;
  gap: clamp(16px, 2vw, 30px);
  margin-right: auto;
}

.home-nav__link {
  color: var(--hm-muted);
  font-size: 14px;
  font-weight: 500;
}

.home-nav__link:hover {
  color: var(--hm-ink);
}

.home-header__actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

.home-nav__signin {
  color: var(--hm-muted);
  font-size: 14px;
  font-weight: 500;
  white-space: nowrap;
}

.home-nav__signin:hover {
  color: var(--hm-ink);
}

/* Buttons */
.home-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 48px;
  padding: 12px 24px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  white-space: nowrap;
  transition:
    color 160ms cubic-bezier(0.2, 0, 0, 1),
    background-color 160ms cubic-bezier(0.2, 0, 0, 1),
    border-color 160ms cubic-bezier(0.2, 0, 0, 1),
    box-shadow 200ms cubic-bezier(0.2, 0, 0, 1),
    transform 200ms cubic-bezier(0.2, 0, 0, 1);
}

.home-btn--sm {
  min-height: 38px;
  padding: 8px 18px;
  font-size: 14px;
}

.home-btn--primary {
  background: var(--hm-ink);
  color: var(--hm-cream);
}

.home-btn--primary:hover {
  background: var(--hm-green-deep);
  transform: translateY(-1px);
  box-shadow: 0 12px 26px -14px rgb(39 106 83 / 65%);
}

.home-btn--ghost {
  border-color: var(--hm-line-strong);
  color: var(--hm-ink);
}

.home-btn--ghost:hover {
  border-color: var(--hm-green);
  background: var(--hm-green-soft);
  transform: translateY(-1px);
}

.home-btn--paper {
  background: var(--hm-cream);
  color: var(--hm-green-deep);
}

.home-btn--paper:hover {
  background: #fff;
  transform: translateY(-1px);
  box-shadow: 0 14px 30px -14px rgb(0 0 0 / 40%);
}

/* Hero */
.home-hero {
  position: relative;
  overflow: clip;
}

.home-hero__grid-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(var(--hm-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--hm-line) 1px, transparent 1px);
  background-size: 54px 54px;
  mask-image: radial-gradient(72% 62% at 50% 34%, #000 30%, transparent 78%);
  opacity: 0.55;
}

.home-hero__glow {
  position: absolute;
  top: -220px;
  left: 50%;
  width: min(980px, 110vw);
  height: 620px;
  pointer-events: none;
  background: radial-gradient(
    50% 50% at 50% 42%,
    rgb(47 125 98 / 14%),
    transparent 72%
  );
  transform: translateX(-50%);
}

.home-hero__inner {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.04fr) minmax(0, 0.96fr);
  align-items: center;
  gap: clamp(36px, 5vw, 72px);
  padding-top: clamp(56px, 9vh, 108px);
  padding-bottom: clamp(64px, 10vh, 116px);
}

.home-badge {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 7px 15px;
  border: 1px solid var(--hm-line-strong);
  border-radius: 999px;
  background: var(--hm-surface);
  color: var(--hm-green-deep);
  font-size: 13px;
  font-weight: 550;
}

.home-badge__dot {
  position: relative;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--hm-green);
}

.home-badge__dot::after {
  content: "";
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 1px solid var(--hm-green);
  animation: hm-ping 2.2s cubic-bezier(0, 0, 0.2, 1) infinite;
}

@keyframes hm-ping {
  0% {
    opacity: 0.8;
    transform: scale(0.6);
  }
  70%,
  100% {
    opacity: 0;
    transform: scale(1.5);
  }
}

.home-hero h1 {
  margin-top: 26px;
  max-width: 12ch;
  font-size: clamp(44px, 5.7vw, 74px);
  font-weight: 700;
  line-height: 1.04;
  letter-spacing: -0.035em;
  text-wrap: balance;
}

.home-hero h1 em {
  display: block;
  color: var(--hm-green-deep);
  font-family: var(--hm-serif);
  font-style: italic;
  font-weight: 500;
  letter-spacing: -0.015em;
}

/* CJK glyphs are full-width: size the headline down so each
   phrase stays on one line instead of splitting mid-word. */
html[lang="zh-CN"] .home-hero h1,
html[lang="ja"] .home-hero h1 {
  max-width: 16ch;
  font-size: clamp(38px, 4.6vw, 60px);
  line-height: 1.12;
}

.home-hero__description {
  max-width: 520px;
  margin-top: 24px;
  color: var(--hm-muted);
  font-size: clamp(16px, 1.5vw, 18px);
  line-height: 1.72;
}

.home-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.home-hero__proof {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 26px;
  color: var(--hm-faint);
  font-size: 13px;
}

.home-hero__proof svg {
  color: var(--hm-green);
}

/* Hero workspace mockup */
.home-mock {
  position: relative;
}

.home-mock__window {
  position: relative;
  border: 1px solid var(--hm-line-strong);
  border-radius: 18px;
  background: var(--hm-surface);
  box-shadow:
    0 1px 0 rgb(255 255 255 / 70%) inset,
    0 30px 60px -30px rgb(26 27 22 / 28%),
    0 90px 120px -70px rgb(47 125 98 / 30%);
  overflow: hidden;
}

.home-mock__bar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--hm-line);
}

.home-mock__dots {
  display: inline-flex;
  gap: 6px;
}

.home-mock__dots i {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--hm-line-strong);
}

.home-mock__file {
  color: var(--hm-faint);
  font-size: 12px;
  font-weight: 550;
  letter-spacing: 0.02em;
}

.home-mock__status {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-left: auto;
  padding: 4px 11px;
  border-radius: 999px;
  background: var(--hm-green-soft);
  color: var(--hm-green-deep);
  font-size: 11.5px;
  font-weight: 600;
}

.home-mock__status i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--hm-green);
  animation: hm-blink 1.6s ease-in-out infinite;
}

@keyframes hm-blink {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.35;
  }
}

.home-mock__body {
  display: grid;
  gap: 14px;
  padding: 20px;
}

.home-mock__prompt {
  justify-self: end;
  max-width: 86%;
  padding: 11px 15px;
  border-radius: 14px 14px 4px;
  background: var(--hm-ink);
  color: var(--hm-cream);
  font-size: 13.5px;
  line-height: 1.5;
}

.home-mock__reasoning {
  display: flex;
  align-items: center;
  gap: 10px;
}

.home-mock__avatar {
  width: 26px;
  height: 26px;
  flex: 0 0 auto;
  border-radius: 7px;
}

.home-mock__thinking {
  display: inline-flex;
  gap: 4px;
}

.home-mock__thinking i {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--hm-green);
  animation: hm-think 1.8s ease-in-out infinite;
}

.home-mock__thinking i:nth-child(2) {
  animation-delay: 0.15s;
}

.home-mock__thinking i:nth-child(3) {
  animation-delay: 0.3s;
}

@keyframes hm-think {
  0%,
  60%,
  100% {
    opacity: 0.25;
    transform: translateY(0);
  }
  30% {
    opacity: 1;
    transform: translateY(-3px);
  }
}

.home-mock__reasoning-text {
  color: var(--hm-muted);
  font-size: 12.5px;
}

.home-mock__steps {
  display: grid;
  gap: 9px;
  padding: 14px 16px;
  border: 1px solid var(--hm-line);
  border-radius: 12px;
  background: var(--hm-bg);
}

.home-mock__steps li {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--hm-faint);
  font-size: 13px;
  font-weight: 500;
}

.home-mock__steps li.is-done {
  color: var(--hm-muted);
}

.home-mock__steps li.is-done svg {
  color: var(--hm-green);
}

.home-mock__steps li.is-active {
  color: var(--hm-ink);
}

.home-mock__steps li.is-active svg {
  color: var(--hm-green-deep);
  animation: hm-spin 1.1s linear infinite;
}

@keyframes hm-spin {
  to {
    transform: rotate(360deg);
  }
}

.home-mock__artifact {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 13px 15px;
  border: 1px solid rgb(47 125 98 / 26%);
  border-radius: 12px;
  background: var(--hm-green-soft);
}

.home-mock__artifact-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  flex: 0 0 auto;
  border-radius: 9px;
  background: var(--hm-surface);
  color: var(--hm-green-deep);
}

.home-mock__artifact-text {
  display: grid;
  gap: 2px;
  min-width: 0;
}

.home-mock__artifact-text strong {
  font-size: 13.5px;
  font-weight: 600;
}

.home-mock__artifact-text small {
  color: var(--hm-green-deep);
  font-size: 11.5px;
}

.home-mock__artifact-open {
  margin-left: auto;
  color: var(--hm-green-deep);
}

/* Floating material chips */
.home-chip {
  position: absolute;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 13px;
  border: 1px solid var(--hm-line-strong);
  border-radius: 999px;
  background: var(--hm-surface);
  box-shadow: 0 14px 28px -16px rgb(26 27 22 / 35%);
  color: var(--hm-muted);
  font-size: 12px;
  font-weight: 600;
  animation: hm-float 5.5s ease-in-out infinite alternate;
}

.home-chip svg {
  color: var(--hm-green-deep);
}

.home-chip--pdf {
  top: -6%;
  right: 5%;
}

.home-chip--video {
  bottom: -6%;
  left: -4%;
  animation-delay: 0.9s;
}

.home-chip--web {
  right: 6%;
  bottom: -5%;
  animation-delay: 1.8s;
}

@keyframes hm-float {
  from {
    transform: translateY(-5px);
  }
  to {
    transform: translateY(6px);
  }
}

/* Capability ticker */
.home-ticker {
  overflow: hidden;
  border-top: 1px solid var(--hm-line);
  border-bottom: 1px solid var(--hm-line);
  padding: 16px 0;
  mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent);
}

.home-ticker__track {
  display: flex;
  width: max-content;
  animation: hm-marquee 30s linear infinite;
}

.home-ticker:hover .home-ticker__track {
  animation-play-state: paused;
}

.home-ticker__row {
  display: flex;
  align-items: center;
  gap: clamp(28px, 4vw, 52px);
  padding-right: clamp(28px, 4vw, 52px);
}

.home-ticker__item {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--hm-muted);
  font-size: 14px;
  font-weight: 550;
  white-space: nowrap;
}

.home-ticker__mark {
  width: 7px;
  height: 7px;
  background: var(--hm-green);
  transform: rotate(45deg);
}

@keyframes hm-marquee {
  to {
    transform: translateX(-50%);
  }
}

/* Focus states */
.home-page a:focus-visible,
.home-page button:focus-visible {
  outline: 2px solid var(--hm-green);
  outline-offset: 3px;
  border-radius: 8px;
}

/* Header responsive */
@media (max-width: 760px) {
  .home-nav {
    display: none;
  }

  .home-header__inner {
    gap: 14px;
  }

  .home-header__actions {
    margin-left: auto;
  }
}

/* Hero responsive */
@media (max-width: 980px) {
  .home-hero__inner {
    grid-template-columns: 1fr;
    padding-top: clamp(44px, 7vh, 72px);
  }

  .home-hero h1 {
    max-width: 14ch;
  }

  .home-mock {
    max-width: 560px;
  }

  .home-chip--pdf {
    right: 2%;
  }

  .home-chip--video {
    left: -3%;
  }
}

@media (max-width: 620px) {
  .home-nav__signin {
    display: none;
  }

  .home-hero__actions .home-btn {
    flex: 1 1 auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  .home-page *,
  .home-page *::before,
  .home-page *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }

  .home-page [data-reveal] {
    opacity: 1;
    transform: none;
  }
}