/* chat_lp.css
   AIチャットの紹介ページ（/chat/lp）のページエントリーポイント。
   共通のLPシェル（ヘッダー・ボタン・フロー・FAQ・フッター）は lp.css を再利用し、
   このファイルはこのページ固有のセクションとチャットの緑（ティール）への差し替えだけを持つ。
   トークンは .cslp-page にスコープする。
   Page entry point for the AI chat landing page (/chat/lp).
   The shared LP shell (header, buttons, flow, FAQ, footer) is reused from lp.css; this file only
   holds this page's own sections and swaps the palette to the chat service's teal green.
   Tokens stay scoped to .cslp-page. */

.cslp-page {
  /* チャット画面と同じティールグリーン（#0f766e / #115e59 / #134e4a）を基調にする
     Anchored to the chat screen's own teal greens (#0f766e / #115e59 / #134e4a) */
  --lp-ink: #0c2b28;
  --lp-paper: #f7fbfa;
  --lp-paper-tint: #e8f4f1;
  --lp-green: #0f766e;
  --lp-green-deep: #115e59;
  --lp-green-soft: #d5ede8;
  --lp-text: #1c3a37;
  --lp-muted: #52706c;
  --lp-line: rgba(12, 43, 40, 0.13);
  --lp-card: #ffffff;
  --lp-header-bg: rgba(247, 251, 250, 0.88);
  --lp-shadow-card: 0 16px 40px rgba(12, 43, 40, 0.1);

  --cslp-rule: rgba(12, 43, 40, 0.16);
  --cslp-chip-bg: rgba(12, 43, 40, 0.05);
  --cslp-accent: #0f766e;
  --cslp-mono: "SFMono-Regular", "Menlo", "Consolas", "Noto Sans Mono CJK JP", monospace;
}

:root[data-theme="dark"] .cslp-page {
  /* 暗所ではチャット画面の明るいティール（#2dd4bf / #99f6e4）側へ寄せる
     In the dark theme the palette leans on the chat screen's bright teals */
  --lp-ink: #06201d;
  --lp-paper: #0a1a18;
  --lp-paper-tint: #102623;
  --lp-green: #2dd4bf;
  --lp-green-deep: #5eead4;
  --lp-green-soft: rgba(45, 212, 191, 0.16);
  --lp-text: #dceeeb;
  --lp-muted: #92b3ae;
  --lp-line: rgba(220, 238, 235, 0.16);
  --lp-card: #102623;
  --lp-header-bg: rgba(10, 26, 24, 0.88);
  --lp-shadow-card: 0 16px 40px rgba(0, 0, 0, 0.45);

  --cslp-rule: rgba(220, 238, 235, 0.2);
  --cslp-chip-bg: rgba(220, 238, 235, 0.07);
  --cslp-accent: #99f6e4;
}

/* lp.css の影と反転ボタンは既定の緑を前提にしているので、ティールへ置き換える
   The shell's shadow and inverse button assume the default green, so retint them here */
.cslp-page .lp-btn--primary {
  box-shadow: 0 10px 24px rgba(15, 118, 110, 0.28);
}

:root[data-theme="dark"] .cslp-page .lp-btn--primary,
:root[data-theme="dark"] .cslp-page .lp-btn--primary:hover {
  color: #06201d;
}

.cslp-page .lp-btn--inverse {
  background: #f7fbfa;
  color: #0c2b28;
}

/* 本文は16px相当を下限にする（シェル側の小さめ指定をこのページだけ引き上げる）
   Keep body copy at 16px or larger, raising the shell's smaller sizes for this page only */
.cslp-page .lp-flow__description,
.cslp-page .lp-faq__answer,
.cslp-page .lp-hero__trust {
  font-size: var(--text-md);
}

/* ---- ヒーロー / Hero ---- */

.cslp-hero {
  background:
    radial-gradient(62% 78% at 88% 8%, rgba(15, 118, 110, 0.12), transparent 70%),
    var(--lp-paper);
  border-bottom: 1px solid var(--lp-line);
  overflow: hidden;
  padding-block: clamp(3.5rem, 8vw, 6rem);
}

.cslp-hero__inner {
  align-items: center;
  display: grid;
  gap: clamp(2.5rem, 6vw, 4rem);
  grid-template-columns: minmax(0, 7fr) minmax(0, 6fr);
}

.cslp-hero__title {
  font-family: var(--lp-font-display);
  font-size: clamp(1.6rem, 3.2vw, 2.2rem);
  font-weight: 600;
  letter-spacing: 0.01em;
  line-height: 1.35;
  margin-bottom: var(--space-5);
}

.cslp-hero__lead {
  color: var(--lp-muted);
  font-size: clamp(1rem, 1.6vw, 1.0625rem);
  margin-bottom: var(--space-8);
  max-width: 36em;
}

.cslp-hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-bottom: var(--space-6);
}

/* ---- チャット画面の見本（実際の画面と同じ文言を文字とCSSだけで再現）
       Mock of the real chat screen, rebuilt from its own wording with text and CSS only ---- */

.cslp-mock {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.cslp-mock__card {
  background: var(--lp-card);
  border: 1px solid var(--lp-line);
  border-radius: var(--radius-l);
  box-shadow: var(--lp-shadow-card);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding: clamp(1.1rem, 2.4vw, 1.4rem);
}

.cslp-mock__card--artifact {
  box-shadow: none;
  margin-inline: clamp(0.5rem, 2vw, 1.75rem);
}

.cslp-mock__label {
  color: var(--lp-muted);
  font-size: var(--text-2xs);
  font-weight: 700;
  letter-spacing: 0.08em;
}

.cslp-mock__tasks {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.cslp-mock__task {
  background: var(--lp-green-soft);
  border-radius: var(--radius-full);
  color: var(--lp-green-deep);
  font-size: var(--text-xs);
  font-weight: 600;
  padding: 0.3rem 0.8rem;
}

.cslp-mock__task--add {
  background: transparent;
  border: 1px dashed var(--lp-green);
}

.cslp-mock__composer {
  align-items: center;
  border: 1px solid var(--cslp-rule);
  border-radius: var(--radius-m);
  display: flex;
  gap: var(--space-3);
  padding: 0.65rem 0.85rem;
}

.cslp-mock__composer-text {
  color: var(--lp-muted);
  flex-grow: 1;
  font-size: var(--text-sm);
}

.cslp-mock__composer-actions {
  color: var(--lp-muted);
  display: inline-flex;
  gap: var(--space-2);
  font-size: var(--text-md);
}

.cslp-mock__send {
  color: var(--lp-green-deep);
}

.cslp-mock__model {
  align-items: center;
  color: var(--lp-muted);
  display: flex;
  font-size: var(--text-2xs);
  gap: var(--space-2);
  justify-content: space-between;
}

.cslp-mock__model-value {
  align-items: center;
  color: var(--lp-text);
  display: inline-flex;
  font-weight: 600;
  gap: var(--space-1);
}

.cslp-mock__artifact-head {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  justify-content: space-between;
}

.cslp-mock__artifact-title {
  font-size: var(--text-md);
  font-weight: 700;
}

/* 生成UIの枠に付く実際のバッジ（Generated UI / Generated 3D）と同じ見立て
   Mirrors the badge the real generated UI frame carries (Generated UI / Generated 3D) */
.cslp-mock__badge {
  align-items: center;
  background: var(--lp-green-soft);
  border-radius: var(--radius-full);
  color: var(--lp-green-deep);
  display: inline-flex;
  font-size: var(--text-2xs);
  font-weight: 700;
  gap: var(--space-1);
  padding: 0.2rem 0.65rem;
}

.cslp-mock__badge-dot {
  background: var(--lp-green);
  border-radius: 50%;
  height: 6px;
  width: 6px;
}

/* サンドボックスの枠。中身は模式的な棒グラフで、数値は書かない
   The sandbox frame; the bars inside are schematic and carry no numbers */
.cslp-mock__frame {
  align-items: flex-end;
  background:
    linear-gradient(var(--cslp-chip-bg), var(--cslp-chip-bg));
  border: 1px solid var(--cslp-rule);
  border-radius: var(--radius-m);
  display: flex;
  gap: clamp(0.5rem, 2vw, 0.9rem);
  height: 132px;
  justify-content: center;
  padding: var(--space-3);
}

.cslp-mock__bar {
  background: linear-gradient(180deg, var(--lp-green), var(--lp-green-deep));
  border-radius: 3px 3px 0 0;
  width: clamp(14px, 5vw, 26px);
}

.cslp-mock__bar--1 { height: 38%; }
.cslp-mock__bar--2 { height: 64%; }
.cslp-mock__bar--3 { height: 88%; }
.cslp-mock__bar--4 { height: 52%; }
.cslp-mock__bar--5 { height: 72%; }

.cslp-mock__note {
  align-items: center;
  color: var(--lp-muted);
  display: flex;
  font-size: var(--text-2xs);
  gap: var(--space-1);
}

/* 見本の登場アニメーション（reduced-motion時は無効）
   Mock entrance animation (disabled under reduced motion) */
@media (prefers-reduced-motion: no-preference) {
  .cslp-mock__card {
    animation: cslp-rise 0.6s cubic-bezier(0.22, 1, 0.36, 1) both;
  }

  .cslp-mock__card--artifact {
    animation-delay: 0.5s;
  }

  .cslp-mock__bar {
    animation: cslp-grow 0.7s cubic-bezier(0.22, 1, 0.36, 1) both;
    animation-delay: 0.9s;
    transform-origin: bottom;
  }

  .cslp-mock__bar--2 { animation-delay: 1s; }
  .cslp-mock__bar--3 { animation-delay: 1.1s; }
  .cslp-mock__bar--4 { animation-delay: 1.2s; }
  .cslp-mock__bar--5 { animation-delay: 1.3s; }
}

@keyframes cslp-rise {
  from {
    opacity: 0;
    transform: translateY(14px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes cslp-grow {
  from {
    transform: scaleY(0.1);
  }

  to {
    transform: scaleY(1);
  }
}

/* ---- できること / What you can do ---- */

.cslp-value__grid {
  display: grid;
  gap: clamp(1.25rem, 3vw, 2rem);
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.cslp-value__item {
  border-top: 2px solid var(--lp-green);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding-top: var(--space-5);
}

.cslp-value__icon {
  align-items: center;
  background: var(--lp-green-soft);
  border-radius: var(--radius-m);
  color: var(--lp-green-deep);
  display: inline-flex;
  font-size: var(--icon-size-md);
  height: 44px;
  justify-content: center;
  width: 44px;
}

.cslp-value__title {
  font-size: var(--text-xl);
  font-weight: 700;
}

.cslp-value__description {
  color: var(--lp-muted);
  font-size: var(--text-md);
}

.cslp-value__points {
  color: var(--lp-muted);
  display: flex;
  flex-direction: column;
  font-size: var(--text-md);
  gap: var(--space-2);
  list-style: none;
}

.cslp-value__points li {
  padding-left: 1.3em;
  position: relative;
}

.cslp-value__points li::before {
  color: var(--lp-green);
  content: "―";
  left: 0;
  position: absolute;
}

/* ---- 対応範囲・仕組み / Scope ---- */

.cslp-scope {
  background: var(--lp-paper-tint);
}

.cslp-scope__axes {
  display: grid;
  gap: clamp(1.25rem, 3vw, 2rem);
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-bottom: clamp(2rem, 5vw, 3rem);
}

.cslp-axis {
  background: var(--lp-card);
  border: 1px solid var(--lp-line);
  border-radius: var(--radius-l);
  padding: clamp(1.25rem, 2.8vw, 1.75rem);
}

.cslp-axis__name {
  color: var(--lp-green-deep);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.12em;
  margin-bottom: var(--space-4);
}

.cslp-axis__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  list-style: none;
}

.cslp-axis__item {
  border-top: 1px solid var(--cslp-rule);
  display: grid;
  gap: var(--space-1);
  padding-top: var(--space-3);
}

.cslp-axis__item:first-child {
  border-top: 0;
  padding-top: 0;
}

.cslp-axis__label {
  font-size: var(--text-md);
  font-weight: 700;
}

.cslp-axis__note {
  color: var(--lp-muted);
  font-size: var(--text-md);
}

.cslp-scope__subtitle {
  font-size: var(--text-md);
  font-weight: 700;
  margin-bottom: var(--space-3);
}

.cslp-chips {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  list-style: none;
  margin-bottom: clamp(2rem, 5vw, 3rem);
}

.cslp-chips li {
  background: var(--lp-card);
  border: 1px solid var(--lp-line);
  border-radius: var(--radius-full);
  font-size: var(--text-md);
  padding: 0.35rem 0.9rem;
}

/* 制限を先に見せるための注記リスト / Up-front list of the limits */
.cslp-limits {
  border-left: 3px solid var(--lp-green);
  color: var(--lp-muted);
  display: flex;
  flex-direction: column;
  font-size: var(--text-md);
  gap: var(--space-2);
  list-style: none;
  padding-left: var(--space-4);
}

/* ---- 使い方の下に置く2カラム / Two columns placed under the flow steps ---- */

.cslp-split {
  display: grid;
  gap: clamp(1.75rem, 4vw, 3rem);
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.cslp-split--spaced {
  margin-top: clamp(2.5rem, 6vw, 4rem);
}

.cslp-panel {
  background: var(--lp-card);
  border: 1px solid var(--lp-line);
  border-radius: var(--radius-l);
  padding: clamp(1.5rem, 3vw, 2rem);
}

.cslp-panel__title {
  font-size: var(--text-xl);
  font-weight: 700;
  margin-bottom: var(--space-4);
}

.cslp-panel__list {
  color: var(--lp-muted);
  display: flex;
  flex-direction: column;
  font-size: var(--text-md);
  gap: var(--space-3);
  list-style: none;
}

.cslp-panel__list dt {
  color: var(--lp-text);
  font-weight: 700;
}

.cslp-panel__row {
  border-top: 1px solid var(--cslp-rule);
  padding-top: var(--space-3);
}

.cslp-panel__row:first-child {
  border-top: 0;
  padding-top: 0;
}

/* ---- レスポンシブ / Responsive ---- */

@media (max-width: 992px) {
  .cslp-hero__inner {
    grid-template-columns: minmax(0, 1fr);
  }

  .cslp-mock {
    margin-inline: auto;
    max-width: 520px;
    width: 100%;
  }

  .cslp-value__grid,
  .cslp-scope__axes,
  .cslp-split {
    grid-template-columns: minmax(0, 1fr);
    max-width: 560px;
  }
}

@media (max-width: 768px) {
  .cslp-hero__cta .lp-btn {
    flex-grow: 1;
  }

  .cslp-mock__card--artifact {
    margin-inline: 0;
  }
}