/* =============================================================
   Diga Agent — Workbench OS / Light Technical Editorial
   ============================================================= */

:root {
  --surface-canvas: #FBFAF7;
  --surface-default: #FFFFFF;
  --surface-subtle: #F5F3EE;
  --surface-sunken: #EFEDE7;
  --surface-overlay: rgba(255,255,255,0.92);

  --ink-primary: #14110E;
  --ink-secondary: #4A453E;
  --ink-tertiary: #7A746B;
  --ink-quaternary: #B5AEA3;

  --border-subtle: #ECE8E0;
  --border-default: #D9D3C7;
  --border-strong: #14110E;

  --brand-primary: #C7421A;
  --brand-primary-soft: #FBE8DF;
  --brand-ink: #5A1D0A;

  --status-running: #C68A12;
  --status-waiting: #2B6CB0;
  --status-blocked: #B23A3A;
  --status-done: #3F7A4E;

  --shadow-sm: 0 1px 2px rgba(20,17,14,0.04);
  --shadow-md: 0 1px 2px rgba(20,17,14,0.04), 0 8px 24px rgba(20,17,14,0.06);
  --shadow-window:
    0 2px 4px rgba(20,17,14,0.05),
    0 24px 60px rgba(20,17,14,0.10),
    0 1px 0 rgba(255,255,255,0.6) inset;

  --font-sans: "Inter", "PingFang SC", -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  --font-serif: "Source Serif 4", "Tiempos Text", "Iowan Old Style", Georgia, serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.55;
  color: var(--ink-secondary);
  background: var(--surface-canvas);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }
button { font-family: inherit; }

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 32px;
}

/* dot */
.dot {
  display: inline-block;
  width: 6px; height: 6px;
  border-radius: 999px;
  background: var(--status-done);
  vertical-align: middle;
  flex-shrink: 0;
}

/* eyebrow */
.eyebrow-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 12px 5px 10px;
  border: 1px solid var(--border-subtle);
  background: var(--surface-default);
  border-radius: 999px;
  font-size: 12px;
  color: var(--ink-secondary);
  margin-bottom: 32px;
}

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 9px 16px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background .15s ease, border-color .15s ease, color .15s ease;
  white-space: nowrap;
}
.btn-primary {
  background: var(--ink-primary);
  color: #FBFAF7;
}
.btn-primary:hover { background: #2A2520; }
.btn-secondary {
  background: var(--surface-default);
  color: var(--ink-primary);
  border-color: var(--border-default);
}
.btn-secondary:hover { background: var(--surface-subtle); }

.btn-icon {
  width: 36px; height: 36px;
  padding: 0;
  border-radius: 8px;
}

/* ---------- nav ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--surface-overlay);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--border-subtle);
}
.nav-inner {
  display: flex;
  align-items: center;
  height: 64px;
  gap: 36px;
}
.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 500;
  color: var(--ink-primary);
  letter-spacing: -0.01em;
}
.logo {
  width: 22px; height: 22px;
  border-radius: 5px;
  background: linear-gradient(135deg, #1f1b16 0%, #2a241d 100%);
  position: relative;
  flex-shrink: 0;
  box-shadow: inset 0 0 0 1px rgba(255,255,255,0.06), 0 1px 2px rgba(20,17,14,0.15);
}
.logo::before, .logo::after {
  content: "";
  position: absolute;
  background: var(--brand-primary);
  border-radius: 1px;
}
.logo::before { left: 5px; top: 5px; width: 5px; height: 5px; }
.logo::after  { right: 5px; bottom: 5px; width: 5px; height: 5px; opacity: 0.65; }

.nav-version {
  display: inline-flex; align-items: center; gap: 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-tertiary);
  background: var(--surface-subtle);
  border: 1px solid var(--border-subtle);
  padding: 2px 8px;
  border-radius: 999px;
  margin-left: 4px;
}

.nav-links {
  display: flex;
  gap: 28px;
  font-size: 14px;
  color: var(--ink-secondary);
}
.nav-links a:hover { color: var(--ink-primary); }

.nav-cta {
  margin-left: auto;
  display: flex;
  gap: 10px;
  align-items: center;
}

.gh-pill {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 13px;
  color: var(--ink-secondary);
  border: 1px solid var(--border-subtle);
  background: var(--surface-default);
  padding: 6px 10px;
  border-radius: 6px;
}
.gh-pill .star { color: var(--brand-primary); }
.gh-pill .num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-primary);
  background: var(--surface-subtle);
  padding: 1px 6px;
  border-radius: 4px;
  margin-left: 2px;
}

/* ---------- hero ---------- */
.hero {
  padding: 64px 0 80px;
  border-bottom: 1px solid var(--border-subtle);
}
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 4fr) minmax(0, 7fr);
  gap: 56px;
  align-items: start;
}
.hero-grid > * { min-width: 0; }
.hero h1 {
  font-family: var(--font-serif);
  font-size: 64px;
  line-height: 1.02;
  letter-spacing: -0.035em;
  color: var(--ink-primary);
  font-weight: 500;
  margin: 0 0 14px;
}
.hero-subtitle {
  font-size: 28px;
  line-height: 1.3;
  color: var(--ink-primary);
  font-weight: 500;
  letter-spacing: -0.015em;
  font-family: var(--font-sans);
  margin: 0 0 22px;
  white-space: normal;
  word-break: keep-all;
  overflow-wrap: break-word;
  max-width: 100%;
}
.hero-desc {
  font-size: 15.5px;
  line-height: 1.6;
  color: var(--ink-tertiary);
  max-width: 460px;
  margin: 0 0 28px;
}

.hero-ctas {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: stretch;
  margin-bottom: 28px;
}
.hero-cta-card {
  flex: 0 1 auto;
  min-width: max-content;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px 12px 12px;
  border-radius: 12px;
  font-weight: 500;
  border: 1px solid transparent;
  transition: background .15s ease, border-color .15s ease, transform .15s ease;
  white-space: nowrap;
}
.hero-cta-card .icon-wrap {
  width: 34px; height: 34px;
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.hero-cta-card .head {
  display: block;
  font-size: 13.5px;
  line-height: 1.2;
  overflow: hidden;
  text-overflow: ellipsis;
}
.hero-cta-card .sub {
  display: block;
  font-size: 12px;
  line-height: 1.3;
  margin-top: 3px;
  opacity: 0.7;
  font-weight: 400;
}
.hero-cta-card.primary {
  background: var(--ink-primary);
  color: #FBFAF7;
}
.hero-cta-card.primary:hover { background: #2A2520; }
.hero-cta-card.primary .icon-wrap {
  background: rgba(255,255,255,0.06);
  color: #FBFAF7;
}
.hero-cta-card.secondary {
  background: var(--surface-default);
  color: var(--ink-primary);
  border-color: var(--border-default);
}
.hero-cta-card.secondary:hover { background: var(--surface-subtle); }
.hero-cta-card.secondary .icon-wrap {
  background: var(--surface-subtle);
  color: var(--ink-primary);
}

.hero-meta {
  display: flex;
  gap: 22px;
  flex-wrap: wrap;
  font-size: 13px;
  color: var(--ink-tertiary);
}
.hero-meta-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.hero-meta-item svg { width: 14px; height: 14px; opacity: 0.7; }

/* ---------- hero visual: window + phone ---------- */
.hero-visual { position: relative; }

.window {
  background: var(--surface-default);
  border: 1px solid var(--border-subtle);
  border-radius: 14px;
  box-shadow: var(--shadow-window);
  overflow: hidden;
  position: relative;
  z-index: 1;
  width: 100%;
}
.window-chrome {
  height: 40px;
  background: var(--surface-subtle);
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  padding: 0 14px;
  position: relative;
}
.traffic { display: flex; gap: 8px; }
.traffic span {
  width: 12px; height: 12px;
  border-radius: 999px;
  display: inline-block;
}
.traffic span:nth-child(1) { background: #E26B5C; }
.traffic span:nth-child(2) { background: #E1B23A; }
.traffic span:nth-child(3) { background: #4FAF6B; }
.window-title {
  position: absolute;
  left: 50%; transform: translateX(-50%);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-tertiary);
}

/* product mock */
.app {
  display: grid;
  grid-template-columns: 200px minmax(0, 1fr) 290px;
  height: 540px;
  background: var(--surface-default);
}

/* sidebar */
.app-side {
  border-right: 1px solid var(--border-subtle);
  background: var(--surface-canvas);
  padding: 12px 10px;
  font-size: 13px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  overflow: hidden;
}
.app-side .ws-label {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-tertiary);
  padding: 4px 8px 6px;
}
.app-side .workspace {
  display: flex; align-items: center; justify-content: space-between;
  padding: 8px 8px;
  border: 1px solid var(--border-subtle);
  background: var(--surface-default);
  border-radius: 6px;
  font-size: 13px;
  color: var(--ink-primary);
  margin-bottom: 8px;
}
.app-side .item {
  display: flex; align-items: center; justify-content: space-between;
  padding: 6px 8px;
  border-radius: 6px;
  color: var(--ink-secondary);
  cursor: default;
  font-size: 13px;
}
.app-side .item.active {
  background: var(--surface-default);
  color: var(--ink-primary);
  box-shadow: inset 0 0 0 1px var(--border-subtle);
}
.app-side .item:hover:not(.active) { background: var(--surface-subtle); }
.app-side .item .check { color: var(--status-done); font-size: 12px; }
.app-side .item .pending {
  width: 8px; height: 8px;
  border-radius: 999px;
  border: 1px solid var(--border-default);
  display: inline-block;
}
.app-side .group-label {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-tertiary);
  padding: 14px 8px 6px;
}
.app-side .footer {
  margin-top: auto;
  border-top: 1px solid var(--border-subtle);
  padding: 10px 8px 0;
  font-size: 12px;
  color: var(--ink-tertiary);
}

/* main */
.app-main {
  display: flex; flex-direction: column;
  border-right: 1px solid var(--border-subtle);
  min-height: 0;
}
.app-tabs {
  display: flex; align-items: center; gap: 14px;
  height: 40px;
  padding: 0 16px;
  border-bottom: 1px solid var(--border-subtle);
  font-size: 13px;
  color: var(--ink-tertiary);
}
.app-tabs .tab.active { color: var(--ink-primary); font-weight: 500; }
.app-tabs .spacer { flex: 1; }
.app-tabs .ic { color: var(--ink-tertiary); cursor: default; font-size: 13px; }
.chat {
  flex: 1;
  padding: 16px 18px;
  display: flex; flex-direction: column; gap: 12px;
  overflow: hidden;
}
.bubble-user {
  align-self: flex-end;
  background: var(--surface-subtle);
  padding: 10px 14px;
  border-radius: 12px 12px 4px 12px;
  max-width: 86%;
  font-size: 13px;
  color: var(--ink-primary);
}
.bubble-user .meta {
  display: block;
  font-size: 11px;
  color: var(--ink-tertiary);
  margin-bottom: 4px;
}
.agent { display: flex; gap: 10px; align-items: flex-start; }
.agent-avatar {
  width: 22px; height: 22px;
  border-radius: 5px;
  background: var(--ink-primary);
  position: relative;
  flex-shrink: 0;
}
.agent-avatar::before, .agent-avatar::after {
  content: "";
  position: absolute;
  background: var(--brand-primary);
  border-radius: 1px;
}
.agent-avatar::before { left: 5px; top: 5px; width: 5px; height: 5px; }
.agent-avatar::after  { right: 5px; bottom: 5px; width: 5px; height: 5px; opacity: 0.7; }

.agent-body { flex: 1; min-width: 0; }
.agent-head {
  display: flex; align-items: baseline; gap: 8px;
  margin-bottom: 4px;
  font-size: 11px;
  color: var(--ink-tertiary);
}
.agent-head strong { color: var(--ink-primary); font-size: 13px; font-weight: 500; }
.agent-text { font-size: 13px; color: var(--ink-secondary); margin-bottom: 6px; }

.checklist {
  list-style: none;
  margin: 0; padding: 0;
  font-size: 13px; color: var(--ink-secondary);
}
.checklist li {
  display: flex; align-items: center; gap: 8px;
  padding: 3px 0;
}
.checklist li::before {
  content: "";
  width: 14px; height: 14px;
  border-radius: 4px;
  border: 1px solid var(--border-default);
  background: var(--surface-default);
  flex-shrink: 0;
}
.checklist li.done::before {
  background: var(--status-done);
  border-color: var(--status-done);
  background-image: linear-gradient(45deg, transparent 38%, #fff 38%, #fff 46%, transparent 46%, transparent 54%, #fff 54%, #fff 62%, transparent 62%);
}

.approval {
  margin-top: 12px;
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  background: var(--surface-canvas);
  padding: 12px 14px;
}
.approval-head {
  display: flex; align-items: center; justify-content: space-between;
  font-size: 13px;
  color: var(--ink-primary);
  font-weight: 500;
  margin-bottom: 10px;
}
.approval-head .badge {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-tertiary);
  background: var(--surface-default);
  border: 1px solid var(--border-subtle);
  padding: 2px 6px;
  border-radius: 4px;
  font-weight: 400;
}
.diff-list { font-family: var(--font-mono); font-size: 12px; color: var(--ink-secondary); }
.diff-row {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 14px;
  padding: 2px 0;
}
.diff-row .add { color: var(--status-done); }
.diff-row .del { color: var(--status-blocked); }

.approval-actions { display: flex; gap: 8px; margin-top: 12px; }
.approval-actions .btn { padding: 7px 12px; font-size: 12.5px; }

.composer {
  border-top: 1px solid var(--border-subtle);
  padding: 10px 14px;
  display: flex; align-items: center; gap: 8px;
  font-size: 13px;
}
.composer input {
  flex: 1;
  border: none; outline: none; background: transparent;
  font-size: 13px;
  color: var(--ink-primary);
  font-family: var(--font-sans);
}
.composer input::placeholder { color: var(--ink-quaternary); }
.composer .send {
  width: 22px; height: 22px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 5px;
  background: var(--surface-subtle);
  font-size: 11px;
  color: var(--ink-tertiary);
}

.app-status {
  height: 30px;
  border-top: 1px solid var(--border-subtle);
  background: var(--surface-canvas);
  display: flex; align-items: center;
  padding: 0 16px; gap: 18px;
  font-size: 11px;
  color: var(--ink-tertiary);
  font-family: var(--font-mono);
}
.app-status strong { color: var(--ink-primary); font-weight: 500; }

/* right panel */
.app-right {
  display: flex;
  flex-direction: column;
  background: var(--surface-default);
  min-height: 0;
}
.app-right .tabs {
  height: 40px;
  padding: 0 14px;
  display: flex; align-items: center; gap: 14px;
  border-bottom: 1px solid var(--border-subtle);
  font-size: 12.5px;
  color: var(--ink-tertiary);
}
.app-right .tabs .active { color: var(--ink-primary); font-weight: 500; }
.app-right .tabs .plus { margin-left: auto; color: var(--ink-tertiary); cursor: default; }
.app-right .tabs .plus + .plus { margin-left: 0; }

.timeline {
  padding: 12px 14px;
  border-bottom: 1px solid var(--border-subtle);
  display: flex; flex-direction: column; gap: 4px;
}
.timeline .row {
  display: grid;
  grid-template-columns: 14px 1fr auto;
  align-items: center;
  gap: 10px;
  padding: 4px 2px;
  font-size: 13px;
}
.timeline .row .dot {
  width: 8px; height: 8px;
  border-radius: 999px;
  margin: 0 auto;
  background: var(--ink-quaternary);
}
.timeline .row.done .dot { background: var(--status-done); }
.timeline .row.now .dot {
  background: var(--brand-primary);
  box-shadow: 0 0 0 4px rgba(199,66,26,0.18);
}
.timeline .row.pending .dot {
  background: var(--surface-default);
  border: 1px solid var(--border-default);
  box-sizing: border-box;
}
.timeline .row .label { color: var(--ink-secondary); }
.timeline .row.now .label { color: var(--ink-primary); font-weight: 500; }
.timeline .row.pending .label { color: var(--ink-tertiary); }
.timeline .row .time {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-tertiary);
}
.timeline .row.pending .time { color: var(--ink-quaternary); }

.tree-block {
  padding: 10px 14px 4px;
  flex: 1;
  display: flex; flex-direction: column;
  min-height: 0;
}
.tree-block .head {
  display: flex; gap: 14px;
  font-size: 12.5px;
  color: var(--ink-tertiary);
  margin-bottom: 8px;
}
.tree-block .head .active { color: var(--ink-primary); font-weight: 500; }
.tree {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-secondary);
  line-height: 1.7;
}
.tree .node { color: var(--ink-primary); }
.tree .child { padding-left: 12px; color: var(--ink-secondary); }
.tree .grand { padding-left: 24px; }
.tree .row {
  display: flex; align-items: center; justify-content: space-between;
  padding: 1px 0;
}
.tree .badge {
  font-family: var(--font-mono);
  font-size: 9.5px;
  border-radius: 3px;
  padding: 1px 5px;
  border: 1px solid var(--border-subtle);
  background: var(--surface-subtle);
  color: var(--ink-tertiary);
  margin-left: 8px;
}
.tree .badge.m { color: var(--status-running); border-color: rgba(198,138,18,0.3); background: rgba(198,138,18,0.08); }
.tree .badge.a { color: var(--status-done); border-color: rgba(63,122,78,0.3); background: rgba(63,122,78,0.08); }

.right-foot {
  border-top: 1px solid var(--border-subtle);
  padding: 8px 14px;
  display: flex; justify-content: space-between;
  font-size: 11px;
  color: var(--ink-tertiary);
  font-family: var(--font-mono);
}
.right-foot .add { color: var(--status-done); }
.right-foot .del { color: var(--status-blocked); }

/* ---------- feature strip ---------- */
.feature-strip {
  background: var(--surface-default);
  border-bottom: 1px solid var(--border-subtle);
}
.feature-strip-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  padding: 40px 32px;
}
.fs-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}
.fs-icon {
  width: 40px; height: 40px;
  border-radius: 10px;
  background: var(--surface-subtle);
  border: 1px solid var(--border-subtle);
  display: flex; align-items: center; justify-content: center;
  color: var(--ink-primary);
  flex-shrink: 0;
}
.fs-icon svg { width: 18px; height: 18px; }
.fs-text strong {
  display: block;
  font-size: 14.5px;
  color: var(--ink-primary);
  font-weight: 500;
  margin-bottom: 4px;
}
.fs-text span {
  display: block;
  font-size: 13px;
  color: var(--ink-tertiary);
  line-height: 1.5;
}

/* ---------- feature showcase ---------- */
.feature-showcase {
  border-bottom: 1px solid var(--border-subtle);
  background: linear-gradient(180deg, var(--surface-canvas) 0%, #FFFEFB 45%, var(--surface-canvas) 100%);
  padding: 88px 0 96px;
}
.feature-showcase-head {
  max-width: 760px;
  margin-bottom: 64px;
}
.section-kicker {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--brand-primary);
  margin-bottom: 14px;
}
.feature-showcase-head h2 {
  margin: 0;
  max-width: 720px;
  font-family: var(--font-serif);
  font-size: 44px;
  line-height: 1.08;
  font-weight: 500;
  letter-spacing: -0.03em;
  color: var(--ink-primary);
  text-wrap: pretty;
}
.feature-showcase-head p {
  margin: 18px 0 0;
  max-width: 620px;
  font-size: 16px;
  line-height: 1.7;
  color: var(--ink-tertiary);
  text-wrap: pretty;
}
.feature-story-list {
  display: flex;
  flex-direction: column;
  gap: 72px;
}
.feature-story {
  display: grid;
  grid-template-columns: minmax(260px, 0.72fr) minmax(0, 1.28fr);
  align-items: center;
  gap: 48px;
}
.feature-story.is-reversed {
  grid-template-columns: minmax(0, 1.28fr) minmax(260px, 0.72fr);
}
.feature-story.is-reversed .feature-copy { order: 2; }
.feature-story.is-reversed .feature-visual-card { order: 1; }
.feature-copy {
  min-width: 0;
}
.feature-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 38px;
  height: 24px;
  padding: 0 9px;
  border: 1px solid var(--border-subtle);
  border-radius: 999px;
  background: var(--surface-default);
  color: var(--ink-tertiary);
  font-family: var(--font-mono);
  font-size: 11px;
  margin-bottom: 18px;
}
.feature-copy h3 {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 32px;
  line-height: 1.15;
  font-weight: 500;
  letter-spacing: -0.025em;
  color: var(--ink-primary);
  text-wrap: pretty;
}
.feature-copy p {
  margin: 16px 0 0;
  font-size: 15.5px;
  line-height: 1.72;
  color: var(--ink-secondary);
  text-wrap: pretty;
}
.feature-points {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.feature-points li {
  position: relative;
  padding-left: 20px;
  font-size: 14px;
  line-height: 1.55;
  color: var(--ink-tertiary);
}
.feature-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: var(--status-done);
  transform: translateY(-50%);
}
.feature-visual-card {
  margin: 0;
  border: 1px solid var(--border-subtle);
  border-radius: 14px;
  background: var(--surface-default);
  box-shadow: var(--shadow-window);
  overflow: hidden;
}
.feature-visual-card img {
  width: 100%;
  aspect-ratio: 1672 / 941;
  object-fit: cover;
  display: block;
}

/* ---------- section split ---------- */
.section-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 80px;
  padding: 80px 32px;
}
.section-title {
  font-family: var(--font-serif);
  font-size: 28px;
  color: var(--ink-primary);
  font-weight: 500;
  letter-spacing: -0.02em;
  margin: 0 0 24px;
}

/* download cards */
.download-cards {
  display: flex; flex-direction: column; gap: 12px;
}
.download-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 18px;
  background: var(--surface-default);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  transition: border-color .15s ease, background .15s ease;
}
.download-card:hover { border-color: var(--border-default); background: #FFFDFA; }
.download-card .icon {
  width: 44px; height: 44px;
  border-radius: 10px;
  background: var(--surface-subtle);
  border: 1px solid var(--border-subtle);
  display: flex; align-items: center; justify-content: center;
  color: var(--ink-primary);
  flex-shrink: 0;
}
.download-card .body { flex: 1; min-width: 0; }
.download-card .title {
  font-size: 15px;
  font-weight: 500;
  color: var(--ink-primary);
  letter-spacing: -0.01em;
}
.download-card .sub {
  font-size: 13px;
  color: var(--ink-tertiary);
  margin-top: 2px;
}
.download-card .action {
  width: 36px; height: 36px;
  border-radius: 8px;
  border: 1px solid var(--border-subtle);
  display: flex; align-items: center; justify-content: center;
  color: var(--ink-primary);
}

.download-link {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 14px;
  color: var(--ink-primary);
  margin-top: 18px;
  border-bottom: 1px solid var(--border-default);
  padding-bottom: 1px;
}
.waitlist {
  margin: 18px 0 0;
  font-size: 13.5px;
  color: var(--ink-tertiary);
}
.waitlist a { color: var(--ink-primary); border-bottom: 1px solid var(--border-default); padding-bottom: 1px; }

/* ledger / changelog */
.ledger {
  position: relative;
  padding-left: 18px;
  margin-top: 4px;
}
.ledger::before {
  content: "";
  position: absolute;
  left: 4px; top: 8px; bottom: 8px;
  width: 1px;
  background: var(--border-subtle);
}
.ledger-row {
  position: relative;
  display: grid;
  grid-template-columns: auto auto 1fr;
  gap: 16px;
  padding: 8px 0 22px;
  align-items: baseline;
}
.ledger-row .marker {
  position: absolute;
  left: -18px; top: 12px;
  width: 9px; height: 9px;
  border-radius: 999px;
  background: var(--surface-default);
  border: 1px solid var(--border-default);
  box-shadow: 0 0 0 3px var(--surface-canvas);
}
.ledger-row.now .marker {
  background: var(--brand-primary);
  border-color: var(--brand-primary);
}
.ledger-row .date {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-tertiary);
  white-space: nowrap;
}
.ledger-row .ver {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-primary);
  background: var(--surface-default);
  border: 1px solid var(--border-subtle);
  padding: 2px 7px;
  border-radius: 4px;
}
.ledger-row .body { grid-column: 1 / -1; padding-left: 0; margin-top: 2px; }
.ledger-row .title {
  font-size: 15px;
  color: var(--ink-primary);
  font-weight: 500;
  margin-bottom: 4px;
}
.ledger-row .desc {
  font-size: 13.5px;
  color: var(--ink-tertiary);
  line-height: 1.55;
}

@media (min-width: 720px) {
  .ledger-row {
    grid-template-columns: 130px 70px 1fr;
    align-items: start;
  }
  .ledger-row .body {
    grid-column: 3 / -1;
    margin-top: 0;
  }
  .ledger-row .date { padding-top: 2px; }
}

.ledger-link {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 14px;
  color: var(--ink-primary);
  border-bottom: 1px solid var(--border-default);
  padding-bottom: 1px;
}

/* ---------- footer ---------- */
.footer {
  background: var(--surface-default);
  border-top: 1px solid var(--border-subtle);
  padding: 56px 0 32px;
}
.footer-grid {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 56px;
  margin-bottom: 36px;
}
.footer .brand-line {
  font-size: 13.5px;
  color: var(--ink-tertiary);
}
.footer-links {
  display: inline-flex;
  align-items: center;
  gap: 28px;
  flex-wrap: wrap;
  padding-top: 6px;
}
.footer-links a {
  font-size: 14px;
  color: var(--ink-secondary);
}
.footer-links a:hover { color: var(--ink-primary); }
.footer .brand-line .name {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--font-serif);
  font-size: 17px;
  color: var(--ink-primary);
  font-weight: 500;
}
.footer h4 {
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-tertiary);
  font-weight: 500;
  margin: 0 0 14px;
}
.footer ul { list-style: none; margin: 0; padding: 0; }
.footer li { padding: 4px 0; font-size: 14px; color: var(--ink-secondary); }
.footer li a:hover { color: var(--ink-primary); }
.footer-bottom {
  display: flex; align-items: center; justify-content: space-between;
  border-top: 1px solid var(--border-subtle);
  padding-top: 22px;
  font-size: 13px;
  color: var(--ink-tertiary);
}
.footer-bottom .release {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
}

/* ---------- responsive ---------- */
@media (max-width: 1280px) {
  .hero h1 { font-size: 64px; }
  .hero-grid { grid-template-columns: minmax(0, 4fr) minmax(0, 7fr); gap: 48px; }
  .feature-strip-grid { grid-template-columns: repeat(2, 1fr); }
  .feature-story,
  .feature-story.is-reversed {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .feature-story.is-reversed .feature-copy,
  .feature-story.is-reversed .feature-visual-card { order: initial; }
  .feature-copy { max-width: 760px; }
  .section-split { grid-template-columns: 1fr; gap: 56px; }
  .footer-grid { flex-direction: column; gap: 32px; }
  .hero-phone { display: none; }
}
@media (max-width: 980px) {
  .hero-grid { grid-template-columns: 1fr; gap: 56px; }
}
@media (max-width: 720px) {
  .container { padding: 0 20px; }
  .hero { padding: 48px 0 64px; }
  .hero h1 { font-size: 44px; }
  .hero-subtitle { font-size: 22px; }
  .nav-links { display: none; }
  .nav-version { display: none; }
  .nav-cta .btn-primary { display: none; }
  .gh-pill { display: none; }
  .app { grid-template-columns: 1fr; height: auto; }
  .app-side, .app-right { display: none; }
  .feature-strip-grid { grid-template-columns: 1fr; padding: 32px 20px; }
  .feature-showcase { padding: 56px 0 64px; }
  .feature-showcase-head { margin-bottom: 44px; }
  .feature-showcase-head h2 { font-size: 32px; }
  .feature-showcase-head p { font-size: 15px; }
  .feature-story-list { gap: 52px; }
  .feature-copy h3 { font-size: 26px; }
  .feature-copy p { font-size: 14.5px; }
  .feature-visual-card { border-radius: 10px; }
  .section-split { padding: 56px 20px; gap: 48px; }
  .footer-grid { flex-direction: column; gap: 24px; }
  .footer-links { gap: 18px; }
}

/* ---------- language toggle ---------- */
.lang-toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 32px;
  padding: 0 10px;
  border: 1px solid var(--border-subtle);
  background: var(--surface-default);
  border-radius: 6px;
  color: var(--ink-secondary);
  font-size: 13px;
  cursor: pointer;
  transition: background .15s ease, border-color .15s ease, color .15s ease;
}
.lang-toggle:hover {
  background: var(--surface-subtle);
  color: var(--ink-primary);
  border-color: var(--border-default);
}
.lang-toggle svg {
  width: 14px; height: 14px;
  opacity: 0.7;
}
.lang-toggle:hover svg { opacity: 1; }
.lang-toggle [data-role="label"] {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.02em;
}

/* lang=zh-CN: 中文下用更适合的字号微调 */
html[lang="zh-CN"] body { font-size: 14.5px; }
html[lang="zh-CN"] .hero h1 {
  font-family: "PingFang SC", "Source Han Sans SC", "Hiragino Sans GB",
               var(--font-serif);
  letter-spacing: -0.02em;
}
html[lang="zh-CN"] .section-title,
html[lang="zh-CN"] .feature-showcase-head h2,
html[lang="zh-CN"] .feature-copy h3,
html[lang="zh-CN"] .footer .brand-line .name {
  font-family: "PingFang SC", "Source Han Sans SC", var(--font-serif);
}
html[lang="zh-CN"] .hero-subtitle { letter-spacing: 0; font-size: 24px; line-height: 1.35; }
html[lang="zh-CN"] .section-kicker { letter-spacing: 0.04em; }
html[lang="zh-CN"] .feature-showcase-head h2,
html[lang="zh-CN"] .feature-copy h3 { letter-spacing: -0.015em; }

@media (max-width: 720px) {
  .lang-toggle [data-role="label"] { display: none; }
  .lang-toggle { padding: 0 8px; }
}

.footer-brand-logo {
  width: 24px; height: 24px;
  border-radius: 5px;
}

/* =============================================================
   Diga Agent desktop mock v2 — strictly aligned to real UI
   ============================================================= */

.brand-logo {
  width: 28px; height: 28px;
  border-radius: 6px;
  display: block;
  flex-shrink: 0;
  image-rendering: -webkit-optimize-contrast;
}
.brand-name {
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 500;
  color: var(--ink-primary);
  letter-spacing: -0.01em;
}
.nav-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.da {
  display: grid;
  grid-template-columns: 256px minmax(0, 1fr);
  height: 540px;
  background: var(--surface-default);
  font-size: 13.5px;
  color: var(--ink-secondary);
  min-width: 0;
}

/* ---------- shared icon button (the bordered square button) ---------- */
.da-iconbtn {
  width: 30px; height: 30px;
  border: 1px solid var(--border-subtle);
  background: var(--surface-default);
  border-radius: 7px;
  color: var(--ink-secondary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: default;
  transition: background .15s, color .15s, border-color .15s;
}
.da-iconbtn:hover {
  background: var(--surface-subtle);
  color: var(--ink-primary);
  border-color: var(--border-default);
}

/* ---------- left sidebar ---------- */
.da-side {
  display: flex;
  flex-direction: column;
  border-right: 1px solid var(--border-subtle);
  background: var(--surface-canvas);
  min-height: 0;
  padding: 14px 12px 12px;
  gap: 10px;
}

.da-side-head {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 10px;
  padding: 4px 4px 0;
}
.da-side-logo {
  width: 32px; height: 32px;
  border-radius: 7px;
}
.da-side-title {
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 500;
  color: var(--ink-primary);
  letter-spacing: -0.005em;
}
.da-side-actions {
  display: inline-flex;
  gap: 6px;
}

.da-newchat {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 38px;
  border: 1px solid var(--border-subtle);
  background: var(--surface-default);
  border-radius: 9px;
  font-size: 14px;
  font-weight: 500;
  color: var(--ink-primary);
  cursor: default;
  margin-top: 2px;
}
.da-newchat:hover { background: var(--surface-subtle); }

.da-cwd {
  padding: 4px 6px 0;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-tertiary);
}

.da-search {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  background: var(--surface-default);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  font-size: 13px;
  color: var(--ink-quaternary);
}
.da-search svg { color: var(--ink-tertiary); flex-shrink: 0; }

/* sessions */
.da-sessions {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
  overflow: hidden;
  flex: 1;
  min-height: 0;
}
.da-sessions li {
  position: relative;
  padding: 8px 10px 10px;
  border-radius: 8px;
  cursor: default;
}
.da-sessions li:hover { background: var(--surface-subtle); }
.da-sessions li.has-children .row1 .caret {
  display: inline-block;
  margin-right: 4px;
  color: var(--ink-tertiary);
  font-size: 13px;
  transform: translateY(-1px);
}
.da-sessions li.unread { padding-left: 22px; }
.da-sessions .ind {
  position: absolute;
  left: 9px; top: 14px;
  width: 7px; height: 7px;
  border-radius: 999px;
  background: #2B6CB0;
}
.da-sessions .row1 {
  font-size: 13.5px;
  color: var(--ink-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.da-sessions .row2 {
  font-size: 12px;
  color: var(--ink-tertiary);
  margin-top: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* explorer collapsed pane */
.da-explorer {
  border-top: 1px solid var(--border-subtle);
  padding-top: 10px;
  margin-top: 4px;
}
.da-explorer-head {
  display: flex;
  align-items: center;
  padding: 4px 6px;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-tertiary);
  font-weight: 500;
}
.da-explorer-head .label { color: var(--ink-secondary); }
.da-explorer-head .actions { margin-left: auto; display: inline-flex; gap: 8px; color: var(--ink-tertiary); font-size: 12px; }

/* settings button (bottom of sidebar) */
.da-settings {
  margin-top: auto;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 42px;
  border: 1px solid var(--border-subtle);
  background: var(--surface-default);
  border-radius: 10px;
  font-size: 14px;
  color: var(--ink-primary);
  cursor: default;
}
.da-settings:hover { background: var(--surface-subtle); }

/* ---------- main column ---------- */
.da-main {
  display: flex;
  flex-direction: column;
  min-height: 0;
  background: var(--surface-default);
  position: relative;
}

.da-toolbar {
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 18px;
  gap: 12px;
}
.da-toolbar-left, .da-toolbar-right {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
}

.tb-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  border: 0;
  background: transparent;
  font-size: 14px;
  color: var(--ink-secondary);
  cursor: default;
  border-radius: 6px;
  min-width: 0;
  white-space: nowrap;
}
.tb-chip span {
  overflow: hidden;
  text-overflow: clip;
  white-space: nowrap;
}
.tb-chip:hover { background: var(--surface-subtle); color: var(--ink-primary); }
.tb-chip svg { color: var(--ink-tertiary); flex-shrink: 0; }

.tb-live {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--status-done);
  background: rgba(63,122,78,0.10);
  border: 1px solid rgba(63,122,78,0.28);
  padding: 4px 10px 4px 9px;
  border-radius: 999px;
  font-weight: 500;
}
.tb-live .live-dot {
  width: 6px; height: 6px;
  border-radius: 999px;
  background: var(--status-done);
}

/* ---------- welcome / empty state ---------- */
.da-welcome {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  padding: 0 32px 64px;
  min-height: 0;
}
.da-welcome-inner {
  display: flex;
  align-items: center;
  gap: 18px;
  position: relative;
  width: 100%;
  justify-content: center;
}
.da-welcome-logo {
  width: 80px; height: 80px;
  flex-shrink: 0;
}
.da-welcome-text { display: flex; flex-direction: column; gap: 4px; }
.da-welcome-name {
  font-family: var(--font-serif);
  font-size: 32px;
  font-weight: 500;
  color: var(--ink-primary);
  letter-spacing: -0.02em;
  line-height: 1;
}
.da-welcome-tagline {
  font-size: 14px;
  color: var(--ink-tertiary);
  font-style: italic;
  letter-spacing: 0;
  white-space: nowrap;
}
/* ---------- composer ---------- */
.da-composer {
  margin: 0 18px 10px;
  border: 1px solid var(--border-default);
  background: var(--surface-default);
  border-radius: 14px;
  padding: 14px 16px 12px;
  position: relative;
  min-height: 130px;
  display: flex;
  flex-direction: column;
}
.da-composer textarea {
  width: 100%;
  flex: 1;
  border: 0;
  outline: 0;
  resize: none;
  background: transparent;
  font-family: var(--font-sans);
  font-size: 14.5px;
  color: var(--ink-primary);
  line-height: 1.5;
  min-height: 60px;
}
.da-composer textarea::placeholder { color: var(--ink-quaternary); }

.cf-send {
  position: absolute;
  right: 12px;
  bottom: 12px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 16px;
  border: 0;
  background: #B7C0E8;
  color: #fff;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 500;
  cursor: default;
}
.cf-send .arrow { font-size: 14px; line-height: 1; }
.cf-send:hover { background: #A5AEDC; }

/* ---------- chips row, single line, no wrap ---------- */
.da-chips {
  margin: 0 18px 18px;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: nowrap;
  overflow: hidden;
}
.cf-icon {
  width: 32px; height: 32px;
  flex-shrink: 0;
  border: 0;
  background: transparent;
  border-radius: 7px;
  color: var(--ink-tertiary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: default;
}
.cf-icon:hover { background: var(--surface-subtle); color: var(--ink-primary); }

.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border: 1px solid var(--border-subtle);
  background: var(--surface-default);
  border-radius: 999px;
  font-size: 13px;
  color: var(--ink-secondary);
  cursor: default;
  white-space: nowrap;
  flex-shrink: 0;
}
.chip:hover { background: var(--surface-subtle); }
.chip svg { color: var(--ink-tertiary); }
.chip .badge-anthropic {
  width: 18px; height: 18px;
  border-radius: 999px;
  background: #D97757;
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-right: 2px;
  flex-shrink: 0;
}
.chip .badge-anthropic svg { display: block; }
.chip .badge-anthropic {
  width: 18px; height: 18px;
  border-radius: 999px;
  background: #D97757;
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-right: 2px;
  flex-shrink: 0;
}
.chip .badge-anthropic svg { color: #fff; }
.chip .check {
  color: var(--status-done);
  font-size: 12px;
}
.chip .caret {
  color: var(--ink-quaternary);
  font-size: 10px;
  margin-left: 2px;
}
.chip .mono {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-primary);
}

/* ---------- responsive ---------- */
@media (max-width: 1180px) {
  .da { height: 600px; grid-template-columns: 240px minmax(0, 1fr); }
  .da-welcome-name { font-size: 28px; }
  .da-welcome-logo { width: 64px; height: 64px; }
}
@media (max-width: 720px) {
  .da { grid-template-columns: 1fr; height: auto; }
  .da-side { display: none; }
  .da-toolbar { height: 48px; padding: 0 12px; }
  .da-welcome { padding: 32px 18px; }
  .da-welcome-inner { flex-direction: column; text-align: center; gap: 12px; }
  .da-composer, .da-chips { margin-left: 12px; margin-right: 12px; }
  .da-chips { overflow-x: auto; }
}

.footer-brand-logo {
  width: 24px; height: 24px;
  border-radius: 5px;
}

/* =============================================================
   Toast + Modal (interaction layer)
   ============================================================= */
.toast {
  position: fixed;
  bottom: 28px;
  left: 50%;
  transform: translate(-50%, 12px);
  padding: 10px 16px;
  background: var(--ink-primary);
  color: #FBFAF7;
  font-size: 13.5px;
  border-radius: 999px;
  box-shadow: 0 8px 24px rgba(20,17,14,0.18);
  pointer-events: none;
  opacity: 0;
  transition: opacity .18s ease, transform .18s ease;
  z-index: 1000;
  max-width: 90vw;
  text-align: center;
}
.toast.is-shown {
  opacity: 1;
  transform: translate(-50%, 0);
}

.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(20,17,14,0.32);
  backdrop-filter: blur(2px);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
  z-index: 1100;
}
.modal-backdrop.is-open { display: flex; }
html.modal-locked { overflow: hidden; }

.modal {
  position: relative;
  background: var(--surface-default);
  border: 1px solid var(--border-subtle);
  border-radius: 16px;
  box-shadow: 0 24px 60px rgba(20,17,14,0.18);
  width: 100%;
  max-width: 460px;
  padding: 28px 28px 22px;
  font-size: 14px;
  color: var(--ink-secondary);
}
.modal-close {
  position: absolute;
  top: 10px; right: 10px;
  width: 32px; height: 32px;
  border: 0;
  background: transparent;
  color: var(--ink-tertiary);
  font-size: 22px;
  border-radius: 8px;
  cursor: pointer;
  line-height: 1;
}
.modal-close:hover { background: var(--surface-subtle); color: var(--ink-primary); }
.modal-title {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 500;
  color: var(--ink-primary);
  letter-spacing: -0.01em;
  margin: 0 0 8px;
}
.modal-lead {
  margin: 0 0 18px;
  color: var(--ink-tertiary);
  font-size: 13.5px;
  line-height: 1.55;
}
.modal-options {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 16px;
}
.modal-option {
  display: grid;
  grid-template-columns: 36px 1fr auto;
  align-items: center;
  gap: 14px;
  padding: 12px 14px;
  border: 1px solid var(--border-subtle);
  background: var(--surface-default);
  border-radius: 10px;
  font: inherit;
  text-align: left;
  cursor: pointer;
  color: var(--ink-secondary);
  transition: border-color .15s, background .15s;
}
.modal-option:hover { background: var(--surface-subtle); border-color: var(--border-default); }
.modal-option .ico {
  width: 36px; height: 36px;
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--surface-subtle);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  color: var(--ink-primary);
  font-size: 14px;
}
.modal-option .ico.mono { font-family: var(--font-mono); font-size: 13px; }
.modal-option .body { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.modal-option .head { font-size: 14.5px; color: var(--ink-primary); font-weight: 500; }
.modal-option .sub { font-size: 12.5px; color: var(--ink-tertiary); }
.modal-option .sub.mono { font-family: var(--font-mono); }
.modal-option .arr {
  font-size: 13px; color: var(--ink-tertiary);
  font-family: var(--font-mono);
}
.modal-foot {
  margin: 12px 0 0;
  font-size: 12.5px;
  color: var(--ink-quaternary);
}

.modal-command-list {
  display: grid;
  gap: 10px;
  margin: 18px 0 20px;
}
.modal-command {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: start;
  gap: 10px;
  padding: 12px;
  border: 1px solid var(--border-default);
  border-radius: 10px;
  background: var(--surface-subtle);
}
.modal-step {
  color: var(--ink-tertiary);
  font-size: 12.5px;
  font-weight: 600;
  white-space: nowrap;
}
.modal-command code {
  min-width: 0;
  overflow: visible;
  white-space: normal;
  overflow-wrap: anywhere;
  word-break: break-word;
  line-height: 1.55;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--ink-primary);
}
.modal-copy {
  justify-self: end;
  border: 1px solid var(--border-default);
  background: var(--surface-default);
  color: var(--ink-primary);
  border-radius: 8px;
  padding: 7px 10px;
  font-size: 12.5px;
  font-weight: 500;
  cursor: pointer;
  transition: background .15s ease, border-color .15s ease;
}
.modal-copy:hover {
  background: #FFFDFA;
  border-color: var(--ink-primary);
}
.modal-actions-download {
  margin-top: 0;
}
.modal-actions-download .btn {
  min-width: 88px;
}

@media (max-width: 520px) {
  .modal-command {
    grid-template-columns: 1fr;
  }
  .modal-copy {
    justify-self: stretch;
  }
}

/* form inside modal */
.modal-form {
  display: flex; flex-direction: column; gap: 12px;
}
.modal-form label { display: flex; flex-direction: column; gap: 6px; }
.modal-form .lbl { font-size: 12px; color: var(--ink-tertiary); }
.modal-form input,
.modal-form select {
  padding: 9px 12px;
  border: 1px solid var(--border-default);
  border-radius: 8px;
  background: var(--surface-default);
  font-family: var(--font-sans);
  font-size: 14px;
  color: var(--ink-primary);
  outline: none;
}
.modal-form input:focus,
.modal-form select:focus { border-color: var(--ink-primary); }
.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 6px;
}

/* mock interaction marker for screenshot mock */
.da [aria-disabled="true"] {
  cursor: default !important;
}


/* =============================================================
   Hero phone — 1:1 from real Diga Agent Mobile screenshot
   ============================================================= */
.hero-phone {
  position: absolute;
  right: -78px;
  top: 0;
  height: 540px;
  aspect-ratio: 780 / 1520;      /* match the supplied mobile reference */
  max-width: 300px;
  z-index: 2;
  pointer-events: none;
}
.phone-frame {
  position: relative;
  width: 100%;
  height: 100%;
  background: linear-gradient(180deg, #2a2a2c 0%, #1a1a1c 100%);
  border-radius: 38px;
  padding: 6px;
  box-shadow:
    inset 0 0 0 1px rgba(255,255,255,0.06),
    0 14px 30px rgba(20,17,14,0.16),
    0 30px 60px rgba(20,17,14,0.14);
}
.phone-frame::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 38px;
  background: linear-gradient(135deg, rgba(255,255,255,0.10) 0%, rgba(255,255,255,0) 50%);
  pointer-events: none;
}
.phone-vol-up, .phone-vol-down, .phone-power {
  position: absolute;
  background: linear-gradient(90deg, #1a1a1c 0%, #38383a 50%, #1a1a1c 100%);
  border-radius: 2px;
  z-index: 3;
}
.phone-vol-up   { left: -3px;  top: 96px;  width: 3px; height: 28px; }
.phone-vol-down { left: -3px;  top: 134px; width: 3px; height: 48px; }
.phone-power    { right: -3px; top: 118px; width: 3px; height: 64px; }
.phone-screen {
  position: relative;
  background: #FBFAF7;
  border-radius: 32px;
  overflow: hidden;
  width: 100%;
  height: 100%;
  font-family: var(--font-sans);
  color: var(--ink-primary);
  font-size: 11.5px;
  line-height: 1.4;
}
.phone-island {
  position: absolute;
  top: 4px; left: 50%;
  transform: translateX(-50%);
  width: 86px; height: 20px;
  background: #14110E;
  border-radius: 14px;
  z-index: 4;
}

/* top app bar */
/* The mobile UI is laid out at screenshot scale, then fitted into the hero device. */
.phone-app {
  --phone-ui-scale: 0.76;
  width: calc(100% / var(--phone-ui-scale));
  height: calc(100% / var(--phone-ui-scale));
  min-height: 0;
  display: flex;
  flex-direction: column;
  transform: scale(var(--phone-ui-scale));
  transform-origin: top left;
}

.m-bar {
  display: grid;
  grid-template-columns: 28px 1fr auto;
  align-items: center;
  gap: 8px;
  padding: 44px 14px 7px;
}
.m-bar-burger,
.m-bar-refresh {
  width: 28px; height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border-subtle);
  background: var(--surface-default);
  border-radius: 8px;
  color: var(--ink-secondary);
  cursor: default;
}
.m-bar-title { min-width: 0; }
.m-bar-name {
  font-size: 13.5px;
  font-weight: 600;
  color: var(--ink-primary);
  letter-spacing: -0.005em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.m-bar-sub {
  font-size: 10px;
  color: var(--ink-tertiary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.m-bar-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.m-pill {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 8px;
  border-radius: 999px;
  font-size: 10.5px;
  font-weight: 500;
  white-space: nowrap;
}
.m-pill .num { font-weight: 600; }
.m-pill-warn {
  color: #C7421A;
  background: #FFF;
  border: 1px solid rgba(199,66,26,0.32);
}
.m-pill-ok {
  color: var(--ink-primary);
  background: var(--surface-default);
  border: 1px solid var(--border-subtle);
}
.m-pill-ok .dot {
  width: 6px; height: 6px;
  border-radius: 999px;
  background: var(--status-done);
}


/* brand block */
.m-brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 10px 14px 14px;
}
.m-brand-logo {
  width: 56px; height: 56px;
  border-radius: 12px;
  image-rendering: -webkit-optimize-contrast;
}
.m-brand-row {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.m-brand-name {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.015em;
  color: var(--ink-primary);
}
.m-brand-pill {
  display: inline-block;
  padding: 3px 10px;
  font-size: 11px;
  color: var(--ink-secondary);
  border: 1px solid var(--border-default);
  background: var(--surface-default);
  border-radius: 999px;
}

/* inbox card */
.m-inbox {
  margin: 0 12px 12px;
  padding: 10px 12px 12px;
  background: #F0EDE6;
  border-radius: 14px;
}
.m-inbox-head {
  display: grid;
  grid-template-columns: 26px 1fr;
  gap: 8px;
  align-items: center;
  margin-bottom: 10px;
}
.m-inbox-icon {
  width: 26px; height: 26px;
  border-radius: 999px;
  background: var(--surface-default);
  border: 1px solid var(--border-subtle);
  color: var(--ink-primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.m-inbox-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--ink-primary);
  line-height: 1.2;
}
.m-inbox-sub {
  font-size: 10.5px;
  color: var(--ink-tertiary);
  margin-top: 2px;
}

.m-inbox-item {
  background: var(--surface-default);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  padding: 9px 12px;
}
.m-inbox-item-head {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-bottom: 6px;
}
.m-inbox-item-head .dot {
  width: 7px; height: 7px;
  border-radius: 999px;
  background: var(--ink-quaternary);
}
.m-inbox-item-head .dot-warn {
  background: #E97A2C;
}
.m-inbox-item-title {
  font-size: 12.5px;
  font-weight: 600;
  color: var(--ink-primary);
}
.m-inbox-item-desc {
  margin: 0 0 6px;
  font-size: 11px;
  color: var(--ink-tertiary);
  line-height: 1.5;
}
.m-inbox-actions {
  display: inline-flex;
  gap: 6px;
  flex-wrap: wrap;
}
.m-action-pill {
  padding: 5px 11px;
  font-size: 11px;
  font-weight: 500;
  background: var(--surface-default);
  border: 1px solid var(--border-default);
  border-radius: 999px;
  color: var(--ink-primary);
  cursor: default;
}
.m-action-pill.is-primary {
  background: #2D6CDF;
  color: #fff;
  border-color: #2D6CDF;
}


/* quick prompt cards */
.m-quick {
  margin: 0 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.m-quick-card {
  display: grid;
  grid-template-columns: 28px 1fr auto;
  gap: 10px;
  align-items: flex-start;
  padding: 8px 12px;
  background: #F0EDE6;
  border-radius: 12px;
}
.m-quick-icon {
  width: 28px; height: 28px;
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.m-quick-icon-violet { background: #EDE6F8; color: #6E48C8; }
.m-quick-icon-blue   { background: #E5EDF8; color: #2D6CDF; }
.m-quick-body { min-width: 0; }
.m-quick-title {
  font-size: 12.5px;
  font-weight: 600;
  color: var(--ink-primary);
  line-height: 1.25;
}
.m-quick-desc {
  margin-top: 3px;
  font-size: 11px;
  color: var(--ink-tertiary);
  line-height: 1.35;
}
.m-quick-send {
  align-self: flex-start;
  padding: 4px 10px;
  font-size: 11px;
  font-weight: 500;
  color: var(--ink-secondary);
  background: var(--surface-default);
  border: 1px solid var(--border-default);
  border-radius: 999px;
  cursor: default;
}

/* composer */
.m-composer {
  margin: auto 12px 14px;
  background: var(--surface-default);
  border: 1px solid var(--border-subtle);
  border-radius: 22px;
  padding: 10px 14px 9px;
  box-shadow: 0 2px 8px rgba(20,17,14,0.05);
}
.m-composer-input {
  font-size: 13px;
  color: var(--ink-quaternary);
  padding: 2px 0 10px;
}
.m-composer-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}
.m-composer-model {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 10px;
  font-size: 11px;
  color: var(--ink-secondary);
  background: var(--surface-default);
  border: 1px solid var(--border-subtle);
  border-radius: 999px;
  cursor: default;
}
.m-composer-actions {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.m-composer-add,
.m-composer-send {
  width: 30px; height: 30px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border-default);
  background: var(--surface-default);
  color: var(--ink-secondary);
  cursor: default;
}
.m-composer-send {
  background: var(--surface-subtle);
  color: var(--ink-tertiary);
  border-color: var(--border-subtle);
}

/* responsive — phone disappears on smaller widths */
@media (max-width: 1280px) { .hero-phone { display: none; } }

/* give inbox a tiny bit less padding so 3 quick cards fit */
.m-inbox  { margin-bottom: 10px; }
.m-quick  { gap: 6px; }