/* ═══════════════════════════════════════════════════════════
   Linkcode Landing Page — Editorial Dossier v3
   暖米编辑底色 + 深色技术面板穿插
   ═══════════════════════════════════════════════════════════ */

:root {
  /* — Surfaces — */
  --bg:        #F4EFE6;        /* 暖米纸 */
  --bg-deeper: #EDE6D7;        /* 比 bg 深一档 */
  --bg-paper:  #FBF8F1;        /* 卡片浅色 */
  --bg-ink:    #0B1020;        /* 深夜蓝墨 */
  --bg-ink-2:  #131A30;        /* 深底加亮一档 */

  /* — Ink — */
  --ink:       #161422;        /* 主文本 */
  --ink-mid:   #5A5363;
  --ink-faint: #9A8F7C;        /* 中性次级（暖灰） */
  --ink-rule:  #C8BFA9;        /* 横线、边框 */

  /* — Accents — */
  --accent:        #2D6A5F;    /* 林地青 */
  --accent-deep:   #1F4D44;
  --accent-soft:   rgba(45, 106, 95, 0.10);
  --warn:          #D4893F;    /* 琥珀金 */
  --warn-soft:     rgba(212, 137, 63, 0.12);
  --cool:          #3B5683;    /* 深蓝 */
  --cool-soft:     rgba(59, 86, 131, 0.10);
  --neutral:       #7A6F5C;    /* 石灰 */
  --neutral-soft:  rgba(122, 111, 92, 0.10);

  /* — Terminal palette (deep card) — */
  --t-bg:      #0B1020;
  --t-surface: #131A30;
  --t-border:  #1F2848;
  --t-ink:     #E5E8F0;
  --t-mute:    #6B7494;
  --t-glow:    #72E6C9;        /* 终端冷青光 */
  --t-warm:    #E8B675;
  --t-red:     #E06C6C;
  --t-amber:   #D4A24E;
  --t-green:   #5CB87A;

  /* — Type — */
  --font-display: 'Fraunces', 'Georgia', serif;
  --font-body:    'Satoshi', 'PingFang SC', 'Hiragino Sans GB', sans-serif;
  --font-mono:    'JetBrains Mono', 'Menlo', monospace;

  /* — Motion — */
  --ease:    cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in: cubic-bezier(0.7, 0, 0.84, 0);

  /* — Spacing — */
  --gap-xl: 160px;
  --gap-lg: 120px;
  --gap-md: 80px;
}

/* ── Reset ──────────────────────────────────────── */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  overflow-x: hidden;
  position: relative;
}

a { color: inherit; text-decoration: none; }
button { background: none; border: none; cursor: pointer; font: inherit; }

::selection { background: var(--accent); color: var(--bg); }

/* Decorative paper grain overlay */
.grain {
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.06'/%3E%3C/svg%3E");
  background-size: 200px 200px;
  pointer-events: none;
  z-index: 9999;
  opacity: 0.5;
  mix-blend-mode: multiply;
}

/* ── Skip link ──────────────────────────────────── */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 10000;
  padding: 10px 18px;
  background: var(--bg-ink);
  color: var(--bg);
  border-radius: 0 0 10px 0;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
}
.skip-link:focus { left: 0; }

/* ── Reveal animations ─────────────────────────── */
.anim-fade,
.anim-rise {
  opacity: 0;
  will-change: opacity, transform;
  transition: opacity 800ms var(--ease), transform 800ms var(--ease);
  transition-delay: var(--d, 0s);
}
.anim-fade  { transform: none; }
.anim-rise  { transform: translateY(36px); }

.anim-fade.visible,
.anim-rise.visible {
  opacity: 1;
  transform: none;
}

/* ── Layout ─────────────────────────────────────── */
.section-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 56px;
}

.section-label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--ink-faint);
  margin-bottom: 24px;
  display: inline-block;
  text-transform: uppercase;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(40px, 5.5vw, 64px);
  font-weight: 400;
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--ink);
  margin-bottom: 56px;
  text-wrap: balance;
  font-variation-settings: "opsz" 144;
}
.section-title em {
  font-style: italic;
  font-weight: 300;
  color: var(--accent);
  font-variation-settings: "opsz" 144, "wght" 320;
}

/* ── Nav ────────────────────────────────────────── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: 68px;
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: background 360ms var(--ease), border-color 360ms ease, backdrop-filter 360ms ease;
}
.nav.scrolled {
  background: rgba(244, 239, 230, 0.78);
  backdrop-filter: blur(18px) saturate(1.4);
  -webkit-backdrop-filter: blur(18px) saturate(1.4);
  border-bottom-color: var(--ink-rule);
}
.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 56px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 16px;
  letter-spacing: 0.04em;
  color: var(--ink);
}
.nav-logo { color: var(--accent); flex-shrink: 0; }
.nav-links { display: flex; align-items: center; gap: 32px; }
.nav-link {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--ink-mid);
  transition: color 200ms;
}
.nav-link:hover { color: var(--ink); }
.nav-cta {
  display: inline-flex;
  align-items: center;
  padding: 9px 18px;
  background: var(--bg-ink);
  color: var(--bg);
  font-size: 13px;
  font-weight: 700;
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
  border-radius: 6px;
  transition: background 200ms, transform 200ms var(--ease);
}
.nav-cta:hover { background: var(--accent); transform: translateY(-1px); }

/* ── HERO ───────────────────────────────────────── */
.hero {
  min-height: 100vh;
  position: relative;
  padding: 132px 0 80px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 800px 600px at 80% 20%, var(--accent-soft) 0%, transparent 60%),
    radial-gradient(ellipse 600px 400px at 10% 80%, var(--warn-soft) 0%, transparent 50%);
  pointer-events: none;
}
/* Vertical editorial rules */
.hero::before, .hero::after {
  content: '';
  position: absolute;
  top: 0;
  bottom: 80px;
  width: 1px;
  background: var(--ink-rule);
  opacity: 0.4;
}
.hero::before { left: 56px; }
.hero::after  { right: 56px; }

.hero-inner {
  max-width: 1340px;
  margin: 0 auto;
  padding: 0 56px;
  width: 100%;
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 56px;
  align-items: center;
  position: relative;
  z-index: 1;
}

/* Eyebrow */
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  margin-bottom: 32px;
  color: var(--ink-mid);
}
.bracket { color: var(--accent); font-weight: 700; }
.eyebrow-key { color: var(--ink); font-weight: 700; }
.eyebrow-sep { color: var(--ink-faint); }
.eyebrow-val { color: var(--ink-mid); }

/* Title */
.hero-title {
  margin-bottom: 32px;
  font-family: var(--font-display);
  font-variation-settings: "opsz" 144;
}
.hero-line {
  display: block;
  font-size: clamp(48px, 6vw, 64px);
  font-weight: 400;
  line-height: 1.02;
  letter-spacing: -0.025em;
}
.hero-line--ink {
  color: var(--ink);
  font-weight: 500;
}
.hero-line--accent {
  font-style: italic;
  font-weight: 300;
  color: var(--accent);
  font-variation-settings: "opsz" 144, "wght" 340;
  margin-left: 0.4em;
  position: relative;
}
.hero-line--accent::before {
  content: '';
  position: absolute;
  left: -0.5em;
  top: 50%;
  width: 0.3em;
  height: 1px;
  background: var(--accent);
  opacity: 0.5;
}

.hero-sub {
  font-size: 19px;
  line-height: 1.7;
  color: var(--ink-mid);
  max-width: 460px;
  margin-bottom: 40px;
}
.hero-sub em {
  font-style: normal;
  color: var(--ink);
  font-weight: 600;
  border-bottom: 1px solid var(--accent);
  padding-bottom: 1px;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 28px;
  font-size: 15px;
  font-weight: 700;
  border-radius: 8px;
  transition: transform 240ms var(--ease), background 200ms, color 200ms, border-color 200ms, box-shadow 280ms;
}
.btn--primary {
  background: var(--bg-ink);
  color: var(--bg);
  box-shadow: 0 4px 0 var(--accent-deep), 0 12px 32px rgba(11, 16, 32, 0.18);
}
.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 0 var(--accent-deep), 0 18px 36px rgba(11, 16, 32, 0.22);
  background: #161D38;
}
.btn--primary:active {
  transform: translateY(0);
  box-shadow: 0 2px 0 var(--accent-deep), 0 6px 16px rgba(11, 16, 32, 0.18);
}
.btn--ghost {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--ink);
  padding: 15px 26px;
}
.btn--ghost:hover {
  background: var(--ink);
  color: var(--bg);
  transform: translateY(-1px);
}
.btn-arrow { transition: transform 200ms; display: inline-block; }
.btn--ghost:hover .btn-arrow { transform: translateX(4px); }

/* Hero meta pills */
.hero-meta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-faint);
  letter-spacing: 0.05em;
}
.meta-pill {
  padding: 4px 10px;
  background: var(--bg-deeper);
  border: 1px solid var(--ink-rule);
  border-radius: 4px;
}
.meta-pill--accent {
  color: var(--warn);
  border-color: var(--warn);
  background: var(--warn-soft);
}
.meta-sep { color: var(--ink-rule); }

/* Hero stage (client mockup + status card) */
.hero-stage {
  position: relative;
  padding-bottom: 24px;
}

.client-mockup {
  width: 100%;
  background: var(--t-bg);
  border: 1px solid var(--t-border);
  border-radius: 12px;
  overflow: hidden;
  box-shadow:
    0 40px 80px rgba(11, 16, 32, 0.25),
    0 16px 32px rgba(11, 16, 32, 0.18);
  transform: rotate(-1deg);
  transition: transform 500ms var(--ease), box-shadow 500ms;
  position: relative;
  z-index: 1;
}
.client-mockup:hover {
  transform: rotate(0deg);
  box-shadow:
    0 50px 100px rgba(11, 16, 32, 0.30),
    0 20px 40px rgba(11, 16, 32, 0.22);
}

/* Mockup window bar */
.mockup-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 11px 16px;
  background: var(--t-surface);
  border-bottom: 1px solid var(--t-border);
}
.mockup-dot { width: 10px; height: 10px; border-radius: 50%; }
.mockup-dot--r { background: var(--t-red); }
.mockup-dot--y { background: var(--t-amber); }
.mockup-dot--g { background: var(--t-green); }
.mockup-bar-title {
  flex: 1;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--t-mute);
  margin-right: 42px;
  letter-spacing: 0.04em;
}

/* Mockup body: 3-column layout */
.mockup-body {
  display: grid;
  grid-template-columns: 48px 170px 1fr;
  height: 400px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--t-ink);
}

/* Rail */
.mockup-rail {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  padding: 12px 6px;
  background: rgba(12, 16, 22, 0.9);
  border-right: 1px solid var(--t-border);
}
.mockup-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(86, 186, 166, 0.3), rgba(104, 170, 223, 0.25));
  border: 1px solid rgba(86, 186, 166, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  color: var(--t-ink);
  margin-bottom: 6px;
}
.mockup-rail-nav {
  display: flex;
  flex-direction: column;
  gap: 4px;
  width: 100%;
}
.mockup-rail-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  padding: 6px 4px;
  border-radius: 8px;
  background: transparent;
  border: none;
  color: var(--t-mute);
  font-size: 9px;
  cursor: default;
}
.mockup-rail-btn--active {
  background: rgba(104, 170, 223, 0.14);
  color: var(--t-ink);
}

/* Conversation List */
.mockup-conversations {
  display: flex;
  flex-direction: column;
  background: rgba(20, 25, 34, 0.82);
  border-right: 1px solid var(--t-border);
  padding: 10px;
  overflow: hidden;
}
.mockup-conv-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  font-weight: 600;
  color: var(--t-ink);
  padding: 4px 6px 10px;
  border-bottom: 1px solid var(--t-border);
  margin-bottom: 8px;
}
.mockup-conv-add {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 1px solid var(--t-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  color: var(--t-mute);
}
.mockup-conv-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.mockup-conv-card {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 8px;
  border-radius: 8px;
  border: 1px solid transparent;
}
.mockup-conv-card--active {
  background: rgba(104, 170, 223, 0.12);
  border-color: rgba(104, 170, 223, 0.2);
}
.mockup-conv-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}
.mockup-conv-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
  overflow: hidden;
  min-width: 0;
}
.mockup-conv-info strong {
  font-size: 11px;
  font-weight: 600;
  color: var(--t-ink);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.mockup-conv-info span {
  font-size: 10px;
  color: var(--t-mute);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Chat Pane */
.mockup-chat {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: rgba(22, 28, 40, 0.92);
  border-radius: 0 0 12px 0;
}
.mockup-chat-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 14px;
  border-bottom: 1px solid var(--t-border);
}
.mockup-chat-title {
  font-size: 12px;
  font-weight: 600;
  color: var(--t-ink);
}
.mockup-chat-members {
  font-size: 10px;
  color: var(--t-mute);
}

/* Task Status Bar */
.mockup-task-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: rgba(86, 186, 166, 0.06);
  border-bottom: 1px solid rgba(86, 186, 166, 0.12);
}
.mockup-pulse {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #56baa6;
  animation: mockup-pulse-dot 1.5s ease-in-out infinite;
}
@keyframes mockup-pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.75); }
}
.mockup-task-text {
  font-size: 11px;
  font-weight: 600;
  color: var(--t-ink);
}
.mockup-task-op {
  font-size: 10px;
  color: var(--t-mute);
  margin-left: auto;
}

/* Messages */
.mockup-messages {
  flex: 1;
  padding: 10px 12px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  overflow: hidden;
}
.mockup-msg {
  display: flex;
  align-items: flex-start;
  gap: 8px;
}
.mockup-msg-avatar {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  font-weight: 700;
  flex-shrink: 0;
}
.mockup-msg-avatar--user {
  background: rgba(86, 186, 166, 0.2);
  border: 1px solid rgba(86, 186, 166, 0.35);
  color: var(--t-glow);
}
.mockup-msg-avatar--agent {
  background: rgba(104, 170, 223, 0.15);
  border: 1px solid rgba(104, 170, 223, 0.3);
  color: #68aadf;
}
.mockup-msg-avatar--user2 {
  background: rgba(212, 137, 63, 0.2);
  border: 1px solid rgba(212, 137, 63, 0.35);
  color: #E8B675;
}
.mockup-msg-bubble--user2 {
  background: linear-gradient(135deg, rgba(212, 137, 63, 0.18), rgba(212, 137, 63, 0.08));
  border: 1px solid rgba(212, 137, 63, 0.3);
  color: var(--t-ink);
  padding: 6px 10px;
  border-radius: 8px;
  font-size: 11px;
  line-height: 1.5;
}
.mockup-msg-body {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
  max-width: 100%;
}
.mockup-msg-bubble {
  padding: 6px 10px;
  border-radius: 8px;
  font-size: 11px;
  line-height: 1.5;
  border: 1px solid var(--t-border);
}
.mockup-msg-bubble--user {
  background: linear-gradient(135deg, rgba(86, 186, 166, 0.22), rgba(86, 186, 166, 0.12));
  border-color: rgba(86, 186, 166, 0.35);
  color: var(--t-ink);
}

/* Tool cards */
.mockup-tool-card {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 5px 10px;
  background: rgba(19, 24, 33, 0.95);
  border: 1px solid var(--t-border);
  border-radius: 8px;
  font-size: 11px;
}
.mockup-tool-icon {
  color: var(--t-mute);
  display: flex;
  align-items: center;
  flex-shrink: 0;
}
.mockup-tool-name {
  font-weight: 600;
  color: var(--t-ink);
  flex-shrink: 0;
}
.mockup-tool-param {
  color: var(--t-mute);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  min-width: 0;
}
.mockup-tool-status {
  margin-left: auto;
  flex-shrink: 0;
  font-weight: 700;
}
.mockup-tool-status--ok {
  color: #5CB87A;
}

/* Approval / Diff */
.mockup-approval {
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid rgba(152, 167, 188, 0.18);
}
.mockup-diff-header {
  padding: 5px 10px;
  font-size: 10px;
  font-weight: 600;
  color: var(--t-mute);
  background: rgba(30, 38, 52, 0.85);
  border-bottom: 1px solid rgba(152, 167, 188, 0.12);
}
.mockup-diff-body {
  padding: 6px 0;
  font-size: 11px;
  line-height: 1.6;
  background: rgba(10, 14, 22, 0.92);
}
.mockup-diff-line {
  padding: 1px 10px;
  white-space: nowrap;
}
.mockup-diff-line--remove {
  background: rgba(255, 80, 80, 0.12);
  color: #ff7070;
}
.mockup-diff-line--add {
  background: rgba(60, 190, 120, 0.13);
  color: #5eeb8a;
}
.mockup-diff-actions {
  display: flex;
  gap: 6px;
  padding: 7px 10px;
  background: rgba(18, 24, 35, 0.6);
  border-top: 1px solid rgba(152, 167, 188, 0.1);
}
.mockup-btn-approve,
.mockup-btn-reject {
  flex: 1;
  text-align: center;
  padding: 5px 0;
  border-radius: 6px;
  font-size: 11px;
  font-weight: 600;
  cursor: default;
}
.mockup-btn-approve {
  background: rgba(60, 190, 120, 0.22);
  color: #5eeb8a;
  box-shadow: 0 0 12px rgba(60, 190, 120, 0.3);
}
.mockup-btn-reject {
  background: rgba(255, 80, 80, 0.1);
  color: #ff7070;
}

/* Composer */
.mockup-composer {
  display: flex;
  align-items: center;
  margin: 0 10px 10px;
  padding: 6px 6px 6px 12px;
  border: 1px solid var(--t-border);
  border-radius: 12px;
  background: rgba(18, 24, 36, 0.95);
}
.mockup-composer-text {
  flex: 1;
  font-size: 11px;
  color: var(--t-mute);
}
.mockup-send-btn {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: #56baa6;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  flex-shrink: 0;
}

/* Fade-in animation for messages */
.mockup-fadein {
  opacity: 0;
  transform: translateY(6px);
  animation: mockup-appear 500ms var(--ease) forwards;
  animation-delay: var(--delay, 0s);
}
@keyframes mockup-appear {
  to { opacity: 1; transform: translateY(0); }
}

/* Status card accent color */
.status-v--accent { color: var(--accent); }

/* System messages (grant notifications) - centered like Feishu */
.mockup-msg--system {
  justify-content: center;
  padding-left: 0;
}
.mockup-system-text {
  font-size: 10px;
  color: var(--t-mute);
  line-height: 1.5;
  text-align: center;
}
.mockup-system-text code {
  background: rgba(255,255,255,0.06);
  padding: 1px 4px;
  border-radius: 3px;
  font-size: 10px;
}

/* Name tags: colored pills showing who owns each workspace */
.mockup-name-tag,
.mockup-ws-tag {
  display: inline-block;
  padding: 1px 5px;
  border-radius: 3px;
  font-size: 9px;
  font-weight: 600;
  margin-right: 2px;
  vertical-align: baseline;
}
.mockup-name-tag--a, .mockup-ws-tag--a {
  background: rgba(86, 186, 166, 0.2);
  color: #72E6C9;
}
.mockup-name-tag--b, .mockup-ws-tag--b {
  background: rgba(212, 137, 63, 0.2);
  color: #E8B675;
}

/* Dossier multi-person tags */
.dossier-system-text {
  font-size: 12px;
  color: var(--t-mute);
  text-align: center;
}
.dossier-system-text code {
  background: rgba(255,255,255,0.08);
  padding: 1px 5px;
  border-radius: 3px;
  font-size: 0.9em;
}
.dossier-name-tag,
.dossier-ws-tag {
  display: inline-block;
  padding: 1px 6px;
  border-radius: 3px;
  font-size: 11px;
  font-weight: 600;
  margin-right: 3px;
}
.dossier-name-tag--a, .dossier-ws-tag--a {
  background: rgba(86, 186, 166, 0.2);
  color: #72E6C9;
}
.dossier-name-tag--b, .dossier-ws-tag--b {
  background: rgba(212, 137, 63, 0.2);
  color: #E8B675;
}

/* Status card overlap */
.status-card {
  position: absolute;
  bottom: -28px;
  right: -32px;
  z-index: 2;
  background: var(--bg-paper);
  border: 1px solid var(--ink-rule);
  border-radius: 10px;
  padding: 14px 18px;
  box-shadow: 0 12px 30px rgba(11, 16, 32, 0.10);
  font-family: var(--font-mono);
  min-width: 200px;
}
.status-row {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--ink-mid);
  margin-bottom: 10px;
  padding-bottom: 8px;
  border-bottom: 1px dashed var(--ink-rule);
}
.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
  animation: pulse 1.6s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 3px var(--accent-soft); }
  50%      { box-shadow: 0 0 0 6px var(--accent-soft); }
}
.status-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}
.status-cell { display: flex; flex-direction: column; gap: 2px; }
.status-k {
  font-size: 9px;
  letter-spacing: 0.1em;
  color: var(--ink-faint);
}
.status-v {
  font-size: 14px;
  font-weight: 700;
  color: var(--ink);
}

/* Hero rule */
.hero-rule {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.4em;
  color: var(--ink-faint);
}
.hero-rule::before, .hero-rule::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--ink-rule);
  margin: 0 24px;
  max-width: 200px;
}
.rule-text { white-space: nowrap; }

/* ── Boundaries Strip ─────────────────────────── */
.boundaries {
  background: var(--bg-deeper);
  padding: var(--gap-md) 0;
  border-top: 1px solid var(--ink-rule);
  border-bottom: 1px solid var(--ink-rule);
}
.boundaries .section-title { margin-bottom: 48px; }

.boundary-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--ink-rule);
  border: 1px solid var(--ink-rule);
}
.b-card {
  background: var(--bg-paper);
  padding: 28px 24px 32px;
  position: relative;
  transition: background 240ms ease, transform 320ms var(--ease);
}
.b-card:hover { transform: translateY(-2px); }
.b-card--01 { border-top: 3px solid var(--accent); }
.b-card--02 { border-top: 3px solid var(--warn); }
.b-card--03 { border-top: 3px solid var(--cool); }
.b-card--04 { border-top: 3px solid var(--neutral); }
.b-card--01:hover { background: var(--accent-soft); }
.b-card--02:hover { background: var(--warn-soft); }
.b-card--03:hover { background: var(--cool-soft); }
.b-card--04:hover { background: var(--neutral-soft); }

.b-num {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--ink-faint);
  margin-bottom: 16px;
}
.b-title {
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 500;
  line-height: 1.1;
  margin-bottom: 12px;
  color: var(--ink);
  font-variation-settings: "opsz" 96;
}
.b-desc {
  font-size: 14px;
  color: var(--ink-mid);
  line-height: 1.65;
}

/* ── Workflow ──────────────────────────────────── */
.workflow {
  padding: var(--gap-xl) 0;
}
.workflow-inner { max-width: 1100px; }
.workflow-head { margin-bottom: 80px; max-width: 720px; }
.workflow-lead {
  font-size: 17px;
  color: var(--ink-mid);
  line-height: 1.7;
  margin-top: -24px;
  max-width: 600px;
}

.timeline {
  list-style: none;
  position: relative;
  padding-left: 80px;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 24px;
  top: 16px;
  bottom: 16px;
  width: 1px;
  background: linear-gradient(to bottom, var(--accent), var(--ink-rule), transparent);
}
.t-step { position: relative; margin-bottom: 56px; }
.t-step:last-child { margin-bottom: 0; }

.t-marker {
  position: absolute;
  left: -64px;
  top: 0;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--bg);
  border: 1.5px solid var(--ink);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 0 6px var(--bg);
  transition: background 320ms ease, color 320ms ease;
}
.t-step.visible .t-marker {
  background: var(--ink);
  color: var(--bg);
}
.t-marker-num {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.t-card {
  background: var(--bg-paper);
  border: 1px solid var(--ink-rule);
  border-radius: 14px;
  padding: 32px 36px;
  transition: border-color 280ms, box-shadow 280ms, transform 280ms var(--ease);
}
.t-card:hover {
  border-color: var(--accent);
  box-shadow: 0 16px 36px rgba(11, 16, 32, 0.08);
  transform: translateY(-2px);
}
.t-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--ink-faint);
  margin-bottom: 14px;
}
.t-title {
  font-family: var(--font-display);
  font-size: 30px;
  font-weight: 400;
  line-height: 1.15;
  color: var(--ink);
  margin-bottom: 14px;
  font-variation-settings: "opsz" 96;
}
.t-desc {
  font-size: 15px;
  color: var(--ink-mid);
  line-height: 1.75;
  margin-bottom: 22px;
}
.t-desc code {
  font-family: var(--font-mono);
  font-size: 13px;
  background: var(--bg-deeper);
  padding: 1px 6px;
  border-radius: 4px;
  border: 1px solid var(--ink-rule);
  color: var(--ink);
}


/* ── Capabilities ─────────────────────────────── */
.capabilities {
  padding: var(--gap-xl) 0;
  background: var(--bg-deeper);
  border-top: 1px solid var(--ink-rule);
  border-bottom: 1px solid var(--ink-rule);
}
.cap-head { margin-bottom: 64px; }
.cap-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.cap-card {
  background: var(--bg-paper);
  border: 1px solid var(--ink-rule);
  border-radius: 14px;
  padding: 32px;
  transition: border-color 280ms, box-shadow 280ms, transform 280ms var(--ease);
  display: flex;
  flex-direction: column;
}
.cap-card:hover {
  border-color: var(--accent);
  box-shadow: 0 16px 40px rgba(11, 16, 32, 0.08);
  transform: translateY(-3px);
}
.cap-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--ink-faint);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px dashed var(--ink-rule);
}
.cap-visual {
  margin: 12px -8px 24px;
  background: var(--bg);
  border-radius: 10px;
  padding: 16px;
  border: 1px solid var(--ink-rule);
}
.cap-title {
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 500;
  line-height: 1.15;
  color: var(--ink);
  margin-bottom: 12px;
  font-variation-settings: "opsz" 96;
}
.cap-desc {
  font-size: 15px;
  color: var(--ink-mid);
  line-height: 1.7;
}

/* ── Demo Dossier ─────────────────────────────── */
.dossier {
  padding: var(--gap-xl) 0;
}
.dossier-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 56px;
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: 48px;
  align-items: start;
}
.dossier-side {
  position: sticky;
  top: 100px;
}
.dossier-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--warn);
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--ink-rule);
}
.dossier-title {
  font-family: var(--font-display);
  font-size: clamp(36px, 4vw, 52px);
  font-weight: 400;
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--ink);
  margin-bottom: 36px;
  font-variation-settings: "opsz" 144;
}
.dossier-title em {
  font-style: italic;
  color: var(--warn);
  font-variation-settings: "opsz" 144, "wght" 320;
}
.dossier-meta {
  list-style: none;
  margin-bottom: 28px;
}
.dossier-meta li {
  display: flex;
  justify-content: space-between;
  padding: 12px 0;
  border-bottom: 1px dashed var(--ink-rule);
  font-family: var(--font-mono);
  font-size: 12px;
}
.dossier-meta span {
  color: var(--ink-faint);
  letter-spacing: 0.1em;
}
.dossier-meta strong {
  color: var(--ink);
  font-weight: 600;
}
.dossier-note {
  font-size: 14px;
  color: var(--ink-mid);
  line-height: 1.65;
  font-style: italic;
}

.dossier-panel {
  background: var(--t-bg);
  border: 1px solid var(--t-border);
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 30px 80px rgba(11, 16, 32, 0.20);
}
.dossier-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 22px;
  background: var(--t-surface);
  border-bottom: 1px solid var(--t-border);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--t-mute);
}
.dossier-bar-tag { color: var(--t-glow); font-weight: 700; }
.dossier-body {
  padding: 24px;
}


/* ── Download ────────────────────────────────── */
.download {
  padding: var(--gap-lg) 0 var(--gap-xl);
  background: var(--bg);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.download::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 700px;
  height: 700px;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle, var(--accent-soft) 0%, transparent 60%);
  pointer-events: none;
}
.download-inner { position: relative; z-index: 1; }
.download .section-label { color: var(--accent); }
.download-title {
  margin-bottom: 12px;
}
.download-ver {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--ink-faint);
  margin-bottom: 48px;
  letter-spacing: 0.06em;
}
.download-btn {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 22px 64px;
  background: var(--bg-ink);
  color: var(--bg);
  border-radius: 12px;
  margin-bottom: 32px;
  box-shadow: 0 6px 0 var(--accent-deep), 0 18px 40px rgba(11, 16, 32, 0.20);
  transition: transform 240ms var(--ease), box-shadow 280ms;
}
.download-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 9px 0 var(--accent-deep), 0 24px 50px rgba(11, 16, 32, 0.25);
}
.download-btn:active {
  transform: translateY(0);
  box-shadow: 0 3px 0 var(--accent-deep), 0 8px 20px rgba(11, 16, 32, 0.20);
}
.download-btn-main {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 700;
}
.download-btn-sub {
  font-family: var(--font-mono);
  font-size: 12px;
  opacity: 0.7;
  letter-spacing: 0.04em;
}

.download-spec {
  display: inline-flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0;
  margin: 20px 0 24px;
  border: 1px solid var(--ink-rule);
  border-radius: 8px;
  background: var(--bg-paper);
  overflow: hidden;
}
.spec-item {
  display: flex;
  flex-direction: column;
  padding: 12px 22px;
  border-right: 1px dashed var(--ink-rule);
  font-family: var(--font-mono);
}
.spec-item:last-child { border-right: 0; }
.spec-k {
  font-size: 10px;
  letter-spacing: 0.16em;
  color: var(--ink-faint);
  margin-bottom: 4px;
}
.spec-v {
  font-size: 13px;
  font-weight: 700;
  color: var(--ink);
}
.download-intel {
  font-size: 13px;
  color: var(--ink-faint);
  font-style: italic;
  margin-bottom: 36px;
}

.download-note {
  display: inline-block;
  text-align: left;
  font-size: 13px;
  color: var(--ink-faint);
  max-width: 480px;
}
.download-note summary {
  cursor: pointer;
  color: var(--ink-mid);
  list-style: none;
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
  transition: color 200ms;
}
.download-note summary::-webkit-details-marker { display: none; }
.download-note summary::before {
  content: '▸ ';
  display: inline;
  transition: transform 200ms;
}
.download-note[open] summary::before { content: '▾ '; }
.download-note summary:hover { color: var(--ink); }
.download-note p {
  margin-top: 12px;
  padding: 14px 16px;
  background: var(--bg-paper);
  border: 1px solid var(--ink-rule);
  border-radius: 8px;
  color: var(--ink-mid);
  line-height: 1.7;
}

/* ── Footer ──────────────────────────────────── */
.footer {
  padding: 60px 0 40px;
  border-top: 1px solid var(--ink-rule);
  background: var(--bg-deeper);
}
.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 56px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 32px;
  align-items: center;
}
.footer-brand-block {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: 0.04em;
}
.footer-brand svg { color: var(--accent); }
.footer-tagline {
  font-size: 13px;
  color: var(--ink-faint);
}
.footer-links {
  display: flex;
  gap: 28px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
}
.footer-links a {
  color: var(--ink-mid);
  transition: color 200ms;
}
.footer-links a:hover { color: var(--ink); }
.footer-copy {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-faint);
  letter-spacing: 0.06em;
  text-align: right;
}
.footer-icp-link {
  color: inherit;
  text-decoration: none;
  transition: color 200ms;
}
.footer-icp-link:hover { color: var(--ink); text-decoration: underline; }

/* ── Responsive ───────────────────────────────── */
@media (max-width: 1180px) {
  .section-inner, .nav-inner, .dossier-inner, .footer-inner {
    padding-left: 40px;
    padding-right: 40px;
  }
  .hero-inner { padding-left: 40px; padding-right: 40px; }
  .hero::before { left: 40px; }
  .hero::after  { right: 40px; }
}

@media (max-width: 980px) {
  .hero-inner { grid-template-columns: 1fr; gap: 56px; }
  .hero { padding-top: 120px; min-height: auto; }
  .client-mockup { transform: none; max-width: 560px; }
  .client-mockup:hover { transform: none; }
  .mockup-body { grid-template-columns: 44px 150px 1fr; height: 360px; }
  .mockup-conversations { padding: 8px; }
  .status-card { right: 0; bottom: -16px; }
  .boundary-grid { grid-template-columns: repeat(2, 1fr); }
  .cap-grid { grid-template-columns: 1fr; }
  .dossier-inner { grid-template-columns: 1fr; gap: 40px; }
  .dossier-side { position: static; }
  .footer-inner { grid-template-columns: 1fr; text-align: left; }
  .footer-copy { text-align: left; }
}

@media (max-width: 720px) {
  :root {
    --gap-xl: 96px;
    --gap-lg: 72px;
    --gap-md: 56px;
  }
  .section-inner, .nav-inner, .dossier-inner, .footer-inner,
  .hero-inner { padding-left: 24px; padding-right: 24px; }
  .hero::before, .hero::after { display: none; }
  .nav-link { display: none; }
  .nav-cta { padding: 7px 14px; font-size: 12px; }

  .hero-line { font-size: clamp(40px, 12vw, 56px); }
  .hero-line--accent { margin-left: 0; }
  .hero-line--accent::before { display: none; }
  .hero-sub { font-size: 17px; }
  .section-title { font-size: clamp(32px, 7vw, 44px); margin-bottom: 40px; }

  .boundary-grid { grid-template-columns: 1fr; }
  .timeline { padding-left: 56px; }
  .t-marker { left: -56px; width: 40px; height: 40px; }
  .t-marker-num { font-size: 12px; }
  .t-card { padding: 24px; }
  .t-title { font-size: 24px; }

  .cap-card { padding: 24px; }
  .cap-title { font-size: 22px; }

  .dossier-title { font-size: 36px; }
  .dossier-body { padding: 18px 18px 22px; }

  .download-btn { padding: 20px 40px; }
  .download-btn-main { font-size: 18px; }
  .download-spec { width: 100%; }
  .spec-item { flex: 1 1 50%; border-bottom: 1px dashed var(--ink-rule); }

  .btn { padding: 14px 22px; font-size: 14px; }
  .hero-actions { flex-direction: column; align-items: stretch; gap: 12px; }
  .btn { justify-content: center; }

  .status-card {
    position: static;
    margin-top: 16px;
    width: 100%;
  }
  .mockup-rail { display: none; }
  .mockup-conversations { display: none; }
  .mockup-body { grid-template-columns: 1fr; height: 320px; }
  .mockup-chat { border-radius: 0 0 12px 12px; }
}

/* ── Reduced motion ────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .anim-fade, .anim-rise { opacity: 1; transform: none; }
  .client-mockup { transform: none; }
  .grain { display: none; }
}
/* ── Workflow Demo UI Panels ─────────────────────────── */
.t-demo-ui {
  margin-top: 16px;
}
.demo-panel {
  background: var(--t-bg);
  border: 1px solid var(--t-border);
  border-radius: 10px;
  overflow: hidden;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--t-ink);
}
.demo-panel-header {
  padding: 8px 14px;
  font-size: 11px;
  font-weight: 600;
  color: var(--t-mute);
  background: var(--t-surface);
  border-bottom: 1px solid var(--t-border);
  letter-spacing: 0.04em;
}

/* Phase 01: Directory list */
.demo-dir-list {
  padding: 8px 10px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.demo-dir-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  border-radius: 6px;
  border: 1px solid var(--t-border);
  background: rgba(19, 24, 33, 0.6);
}
.demo-dir-item--granted {
  border-color: rgba(86, 186, 166, 0.25);
}
.demo-dir-item--denied {
  border-color: rgba(224, 108, 108, 0.2);
  opacity: 0.6;
}
.demo-dir-icon {
  font-size: 14px;
  flex-shrink: 0;
}
.demo-dir-name {
  flex: 1;
  color: var(--t-ink);
  font-size: 12px;
}
.demo-dir-badge {
  font-size: 10px;
  font-weight: 600;
  padding: 2px 6px;
  border-radius: 4px;
  flex-shrink: 0;
}
.demo-dir-badge--ok {
  background: rgba(60, 190, 120, 0.15);
  color: #5CB87A;
}
.demo-dir-badge--deny {
  background: rgba(255, 80, 80, 0.12);
  color: #E06C6C;
}

/* Phase 02: Chat snippet */
.demo-chat-snippet {
  padding: 12px 10px;
}
.demo-msg-row {
  display: flex;
  align-items: flex-start;
  gap: 8px;
}
.demo-msg-av {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  font-weight: 700;
  flex-shrink: 0;
}
.demo-msg-av--user {
  background: rgba(86, 186, 166, 0.2);
  border: 1px solid rgba(86, 186, 166, 0.35);
  color: var(--t-glow);
}
.demo-msg-bubble {
  padding: 7px 11px;
  border-radius: 8px;
  font-size: 12px;
  line-height: 1.5;
}
.demo-msg-bubble--user {
  background: linear-gradient(135deg, rgba(86, 186, 166, 0.2), rgba(86, 186, 166, 0.1));
  border: 1px solid rgba(86, 186, 166, 0.3);
  color: var(--t-ink);
}
.demo-composer-mini {
  display: flex;
  align-items: center;
  margin: 0 10px 10px;
  padding: 6px 6px 6px 12px;
  border: 1px solid var(--t-border);
  border-radius: 10px;
  background: rgba(18, 24, 36, 0.95);
}
.demo-composer-ph {
  flex: 1;
  font-size: 11px;
  color: var(--t-mute);
}
.demo-composer-send {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: #56baa6;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 12px;
  font-weight: 700;
}

/* Phase 03: Tool cards + diff */
.demo-tool-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border-bottom: 1px solid var(--t-border);
}
.demo-tool-name {
  font-weight: 600;
  color: var(--t-ink);
  min-width: 36px;
}
.demo-tool-desc {
  flex: 1;
  color: var(--t-mute);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.demo-tool-ok {
  color: #5CB87A;
  font-weight: 700;
  flex-shrink: 0;
}
.demo-diff-mini {
  padding: 6px 12px;
  font-size: 11px;
  line-height: 1.6;
  border-bottom: 1px solid var(--t-border);
}
.demo-diff-rm {
  color: #ff7070;
  background: rgba(255, 80, 80, 0.08);
  padding: 1px 4px;
  border-radius: 3px;
}
.demo-diff-add {
  color: #5eeb8a;
  background: rgba(60, 190, 120, 0.08);
  padding: 1px 4px;
  border-radius: 3px;
}
.demo-approve-row {
  display: flex;
  gap: 6px;
  padding: 8px 12px;
}
.demo-btn-approve,
.demo-btn-reject {
  flex: 1;
  text-align: center;
  padding: 5px 0;
  border-radius: 6px;
  font-size: 11px;
  font-weight: 600;
}
.demo-btn-approve {
  background: rgba(60, 190, 120, 0.2);
  color: #5eeb8a;
  box-shadow: 0 0 10px rgba(60, 190, 120, 0.25);
}
.demo-btn-reject {
  background: rgba(255, 80, 80, 0.1);
  color: #ff7070;
}

/* ── Dossier UI (chat-style) ─────────────────────────── */
.dossier-body--ui {
  padding: 20px 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  color: var(--t-ink);
  font-family: var(--font-mono);
  font-size: 13px;
}
.dossier-msg {
  display: flex;
  align-items: flex-start;
  gap: 8px;
}
.dossier-msg--system {
  justify-content: center;
  padding-left: 0;
}
.dossier-av {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 700;
  flex-shrink: 0;
}
.dossier-av--user {
  background: rgba(86, 186, 166, 0.2);
  border: 1px solid rgba(86, 186, 166, 0.35);
  color: var(--t-glow);
}
.dossier-av--agent {
  background: rgba(104, 170, 223, 0.15);
  border: 1px solid rgba(104, 170, 223, 0.3);
  color: #68aadf;
}
.dossier-av--user2 {
  background: rgba(212, 137, 63, 0.2);
  border: 1px solid rgba(212, 137, 63, 0.35);
  color: #E8B675;
}
.dossier-bubble--user2 {
  background: linear-gradient(135deg, rgba(212, 137, 63, 0.15), rgba(212, 137, 63, 0.06));
  border: 1px solid rgba(212, 137, 63, 0.25);
  color: var(--t-ink);
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 13px;
  line-height: 1.5;
}
.dossier-msg-body {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}
.dossier-bubble {
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 13px;
  line-height: 1.5;
  border: 1px solid var(--t-border);
  color: var(--t-ink);
}
.dossier-bubble--user {
  background: linear-gradient(135deg, rgba(86, 186, 166, 0.2), rgba(86, 186, 166, 0.1));
  border-color: rgba(86, 186, 166, 0.3);
}
.dossier-bubble--agent {
  background: rgba(104, 170, 223, 0.08);
  border-style: dashed;
  border-color: rgba(104, 170, 223, 0.25);
}
.dossier-bubble code {
  background: rgba(255,255,255,0.08);
  padding: 1px 4px;
  border-radius: 3px;
  font-size: 0.9em;
}
.dossier-tool {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 5px 10px;
  background: rgba(19, 24, 33, 0.9);
  border: 1px solid var(--t-border);
  border-radius: 6px;
  font-size: 12px;
}
.dossier-tool-n {
  font-weight: 600;
  color: var(--t-ink);
  min-width: 32px;
}
.dossier-tool-p {
  flex: 1;
  color: #b0b8c8;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.dossier-tool-ok {
  color: #5CB87A;
  font-weight: 700;
}
.dossier-diff {
  border-radius: 6px;
  overflow: hidden;
  border: 1px solid rgba(152, 167, 188, 0.15);
  font-size: 12px;
}
.dossier-diff-hd {
  padding: 5px 12px;
  font-size: 11px;
  font-weight: 600;
  color: #b0b8c8;
  background: rgba(30, 38, 52, 0.85);
  border-bottom: 1px solid rgba(152, 167, 188, 0.12);
}
.dossier-diff-rm {
  padding: 2px 10px;
  background: rgba(255, 80, 80, 0.1);
  color: #ff7070;
}
.dossier-diff-add {
  padding: 2px 10px;
  background: rgba(60, 190, 120, 0.1);
  color: #5eeb8a;
}
.dossier-approve-row {
  margin-top: 4px;
}
.dossier-btn-approve {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 600;
  background: rgba(60, 190, 120, 0.2);
  color: #5eeb8a;
}
.dossier-result {
  font-size: 13px;
  font-weight: 700;
  color: #72E6C9;
}

/* ═══════════════════════════════════════════════════════════
   Architecture Diagram Section
   ═══════════════════════════════════════════════════════════ */
.architecture {
  padding: var(--gap-lg) 0 var(--gap-md);
  text-align: center;
}
.arch-inner {
  max-width: 1200px;
}
.arch-lead {
  font-size: 17px;
  color: var(--ink-mid);
  line-height: 1.7;
  max-width: 580px;
  margin: -24px auto 56px;
}

/* Diagram container */
.arch-diagram {
  position: relative;
  width: 100%;
  max-width: 1060px;
  height: 620px;
  margin: 0 auto;
}

/* SVG layer */
.arch-svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  overflow: visible;
}

/* ── Agent Node ──────────────────────────── */
.arch-agent {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.arch-agent-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--ink-faint);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.arch-agent-tag svg { opacity: 0.6; }

.arch-agent-core {
  width: 140px;
  height: 140px;
  border-radius: 50%;
  background: var(--bg-ink);
  border: 2px solid rgba(114, 230, 201, 0.35);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  box-shadow:
    0 0 0 1px rgba(114, 230, 201, 0.08),
    0 0 50px rgba(114, 230, 201, 0.12),
    0 0 100px rgba(114, 230, 201, 0.06),
    0 20px 60px rgba(11, 16, 32, 0.35);
  animation: arch-glow 3.5s ease-in-out infinite;
}

@keyframes arch-glow {
  0%, 100% {
    box-shadow:
      0 0 0 1px rgba(114, 230, 201, 0.08),
      0 0 50px rgba(114, 230, 201, 0.12),
      0 0 100px rgba(114, 230, 201, 0.06),
      0 20px 60px rgba(11, 16, 32, 0.35);
  }
  50% {
    box-shadow:
      0 0 0 1px rgba(114, 230, 201, 0.15),
      0 0 70px rgba(114, 230, 201, 0.20),
      0 0 140px rgba(114, 230, 201, 0.08),
      0 20px 60px rgba(11, 16, 32, 0.35);
  }
}

.arch-agent-ai {
  font-family: var(--font-mono);
  font-size: 30px;
  font-weight: 700;
  color: var(--t-glow);
  letter-spacing: 0.08em;
  line-height: 1;
}
.arch-agent-brand {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.2em;
  color: var(--t-mute);
  text-transform: uppercase;
}

.arch-agent-status {
  margin-top: 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--t-glow);
  display: flex;
  align-items: center;
  gap: 6px;
  background: rgba(114, 230, 201, 0.06);
  padding: 4px 14px;
  border-radius: 20px;
  border: 1px solid rgba(114, 230, 201, 0.15);
}

.arch-pulse-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--t-glow);
  animation: arch-dot-blink 1.5s ease-in-out infinite;
}
@keyframes arch-dot-blink {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.3; transform: scale(0.7); }
}

/* ── Ripple rings ──────────────────────────── */
@keyframes arch-ripple-expand {
  0%   { transform: translate(-50%, -50%) scale(0.95); opacity: 0.12; }
  100% { transform: translate(-50%, -50%) scale(2.0); opacity: 0; }
}
.arch-ripple {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 140px;
  height: 140px;
  border-radius: 50%;
  border: 1px solid var(--t-glow);
  transform: translate(-50%, -50%);
  animation: arch-ripple-expand 4s ease-out infinite;
  pointer-events: none;
  z-index: 1;
}
.arch-ripple:nth-child(5) { animation-delay: 1.3s; }
.arch-ripple:nth-child(6) { animation-delay: 2.6s; }

/* ── Person Nodes ──────────────────────────── */
.arch-person {
  position: absolute;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.arch-person-card {
  background: var(--bg-paper);
  border: 1px solid var(--ink-rule);
  border-radius: 14px;
  padding: 16px 20px 14px;
  width: 210px;
  box-shadow: 0 8px 28px rgba(11, 16, 32, 0.07);
}

.arch-person-head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}

.arch-person-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}
.arch-person-avatar--a { background: var(--accent); }
.arch-person-avatar--b { background: var(--warn); }
.arch-person-avatar--c { background: var(--cool); }

.arch-person-info { text-align: left; }

.arch-person-name {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 500;
  color: var(--ink);
  line-height: 1.2;
  font-variation-settings: "opsz" 72;
}
.arch-person-role {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  color: var(--ink-faint);
  text-transform: uppercase;
}

/* Mini Terminal */
.arch-mini-term {
  background: var(--t-bg);
  border: 1px solid var(--t-border);
  border-radius: 8px;
  overflow: hidden;
  font-family: var(--font-mono);
}
.arch-term-bar {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 5px 8px;
  background: var(--t-surface);
  border-bottom: 1px solid var(--t-border);
}
.arch-term-bar i {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  display: block;
}
.arch-term-bar i:nth-child(1) { background: var(--t-red); }
.arch-term-bar i:nth-child(2) { background: var(--t-amber); }
.arch-term-bar i:nth-child(3) { background: var(--t-green); }

.arch-term-body {
  padding: 7px 10px;
  font-size: 11px;
  color: var(--t-ink);
  display: flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
}
.arch-op-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  flex-shrink: 0;
  animation: arch-dot-blink 1.5s ease-in-out infinite;
}
.arch-op-dot--a { background: var(--accent); }
.arch-op-dot--b { background: var(--warn); }
.arch-op-dot--c { background: var(--cool); }

.arch-op-name {
  font-weight: 600;
  flex-shrink: 0;
}
.arch-op-name--a { color: #72E6C9; }
.arch-op-name--b { color: #E8B675; }
.arch-op-name--c { color: #7EB3E0; }

.arch-op-file {
  color: var(--t-mute);
  overflow: hidden;
  text-overflow: ellipsis;
}

.arch-local-tag {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--ink-faint);
  margin-top: 8px;
  display: flex;
  align-items: center;
  gap: 4px;
}

/* Person positions */
.arch-person--alice {
  top: 0;
  left: 50%;
  transform: translateX(-50%);
}
.arch-person--bob {
  bottom: 30px;
  left: 4%;
}
.arch-person--charlie {
  bottom: 30px;
  right: 4%;
}

/* Card accent borders */
.arch-person--alice .arch-person-card { border-top: 3px solid var(--accent); }
.arch-person--bob .arch-person-card   { border-top: 3px solid var(--warn); }
.arch-person--charlie .arch-person-card { border-top: 3px solid var(--cool); }

/* ── Ghost Cards ─────────────────────────── */
.arch-ghost {
  position: absolute;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.arch-ghost-card {
  width: 180px;
  border-radius: 14px;
  padding: 16px 20px 14px;
  border: 1.5px dashed var(--ink-rule);
  background: rgba(251, 248, 241, 0.4);
  opacity: 0.45;
}
.arch-ghost-head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}
.arch-ghost-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1.5px dashed var(--ink-rule);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  color: var(--ink-rule);
  flex-shrink: 0;
}
.arch-ghost-lines {
  display: flex;
  flex-direction: column;
  gap: 5px;
}
.arch-ghost-line {
  height: 8px;
  border-radius: 4px;
  background: var(--ink-rule);
  opacity: 0.35;
}
.arch-ghost-line:first-child { width: 72px; }
.arch-ghost-line:last-child  { width: 48px; }

.arch-ghost-term {
  height: 36px;
  border-radius: 8px;
  border: 1px dashed var(--ink-rule);
  background: rgba(11, 16, 32, 0.04);
}
.arch-ghost-tag {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--ink-rule);
  margin-top: 8px;
  opacity: 0.6;
}

/* Ghost positions */
.arch-ghost--left {
  left: -20px;
  top: 50%;
  transform: translateY(-50%);
}
.arch-ghost--right {
  right: -20px;
  top: 50%;
  transform: translateY(-50%);
}
.arch-ghost--left .arch-ghost-card  { opacity: 0.35; }
.arch-ghost--right .arch-ghost-card { opacity: 0.25; transform: scale(0.92); }

/* "+N more" badge */
.arch-more-badge {
  position: absolute;
  bottom: -8px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 4;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--ink-faint);
  background: var(--bg-deeper);
  border: 1px solid var(--ink-rule);
  padding: 4px 16px;
  border-radius: 20px;
  white-space: nowrap;
}

/* Architecture responsive */
@media (max-width: 980px) {
  .arch-diagram { height: 520px; }
  .arch-person-card { width: 180px; padding: 14px 16px 12px; }
  .arch-person-name { font-size: 15px; }
  .arch-ghost--left,
  .arch-ghost--right { display: none; }
  .arch-person--bob { left: 2%; }
  .arch-person--charlie { right: 2%; }
}
@media (max-width: 720px) {
  .arch-diagram { height: 480px; }
  .arch-person-card { width: 160px; padding: 12px 14px 10px; }
  .arch-person-avatar { width: 30px; height: 30px; font-size: 13px; }
  .arch-person-name { font-size: 14px; }
  .arch-agent-core { width: 110px; height: 110px; }
  .arch-agent-ai { font-size: 24px; }
  .arch-agent-status { font-size: 10px; padding: 3px 10px; }
  .arch-more-badge { font-size: 10px; }
}