/* =========================================================================
   Tokens
   ========================================================================= */
:root {
  --bg: #fafafa;
  --bg-soft: #f4f4f5;
  --surface: #ffffff;
  --surface-2: #fcfcfd;
  --border: #ececee;
  --border-strong: #dcdce0;

  --text: #0a0a0b;
  --text-secondary: #5b5b66;
  --text-tertiary: #8a8a93;

  --primary: #5b5bd6;
  --primary-hover: #4d4dc2;
  --primary-soft: #eeeefb;

  --success: #16a34a;
  --success-soft: #ecfdf3;
  --warning: #f59e0b;
  --danger: #dc2626;
  --danger-soft: #fef2f2;

  --shadow-xs: 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.04), 0 1px 3px rgba(15, 23, 42, 0.04);
  --shadow-md: 0 4px 12px rgba(15, 23, 42, 0.05), 0 2px 4px rgba(15, 23, 42, 0.04);
  --shadow-lg: 0 12px 32px rgba(15, 23, 42, 0.08), 0 4px 12px rgba(15, 23, 42, 0.04);

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 20px;

  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --transition: 200ms var(--ease);

  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', Menlo, Consolas, monospace;
}

/* =========================================================================
   Base
   ========================================================================= */
*,
*::before,
*::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: 'cv02', 'cv03', 'cv04', 'cv11';
  text-rendering: optimizeLegibility;
}
img, svg { display: block; max-width: 100%; }
button { font-family: inherit; }

.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

/* =========================================================================
   Nav
   ========================================================================= */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(250, 250, 250, 0.78);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--border);
}
.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text);
  font-weight: 600;
  font-size: 15px;
  letter-spacing: -0.01em;
}
.brand__mark {
  width: 24px;
  height: 24px;
  border-radius: 7px;
  background: linear-gradient(135deg, #5b5bd6 0%, #8b5cf6 100%);
  box-shadow:
    0 2px 6px rgba(91, 91, 214, 0.3),
    inset 0 1px 0 rgba(255, 255, 255, 0.2);
}
.brand__name span { color: var(--text-tertiary); font-weight: 500; }

.nav__links { display: flex; gap: 28px; }
.nav__links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: color var(--transition);
}
.nav__links a:hover { color: var(--text); }

/* =========================================================================
   Hero
   ========================================================================= */
.hero {
  position: relative;
  padding: 96px 0 80px;
  text-align: center;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 50% 0%, rgba(91, 91, 214, 0.08), transparent 70%),
    radial-gradient(ellipse 60% 40% at 80% 10%, rgba(139, 92, 246, 0.05), transparent 70%);
  pointer-events: none;
}
.hero__inner {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
  letter-spacing: 0.02em;
  text-transform: uppercase;
  box-shadow: var(--shadow-xs);
}
.eyebrow::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 0 3px rgba(22, 163, 74, 0.15);
}
.hero__title {
  font-size: clamp(40px, 6vw, 64px);
  line-height: 1.05;
  letter-spacing: -0.025em;
  font-weight: 700;
  margin: 24px 0 16px;
  max-width: 800px;
}
.hero__subtitle {
  font-size: 18px;
  line-height: 1.55;
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 0 32px;
}
.hero__cta {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
}

/* =========================================================================
   Buttons
   ========================================================================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 20px;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  transition: transform var(--transition), background var(--transition),
    border-color var(--transition), color var(--transition), box-shadow var(--transition);
  white-space: nowrap;
}
.btn--primary {
  background: var(--primary);
  color: white;
  box-shadow:
    0 1px 2px rgba(91, 91, 214, 0.3),
    inset 0 1px 0 rgba(255, 255, 255, 0.18);
}
.btn--primary:hover {
  background: var(--primary-hover);
  transform: translateY(-1px);
  box-shadow:
    0 4px 12px rgba(91, 91, 214, 0.25),
    inset 0 1px 0 rgba(255, 255, 255, 0.18);
}
.btn--primary:active { transform: translateY(0); }
.btn--primary:disabled { cursor: not-allowed; opacity: 0.7; transform: none; }

.btn--ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border-strong);
}
.btn--ghost:hover {
  background: var(--surface);
  border-color: var(--text-tertiary);
}
.btn--block { width: 100%; padding: 13px 20px; }
.btn--text {
  background: transparent;
  color: var(--primary);
  padding: 4px 0;
  font-weight: 500;
}
.btn--text:hover { color: var(--primary-hover); text-decoration: underline; }

.btn__spinner {
  display: none;
  width: 14px;
  height: 14px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}
.btn--loading .btn__spinner { display: inline-block; }
.btn--loading .btn__label { opacity: 0.85; }
@keyframes spin { to { transform: rotate(360deg); } }

.chip {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 12.5px;
  font-weight: 500;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition);
}
.chip:hover {
  background: var(--bg-soft);
  color: var(--text);
  border-color: var(--border-strong);
}

/* =========================================================================
   Sections
   ========================================================================= */
.section-head {
  text-align: center;
  margin-bottom: 56px;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.section-head h2 {
  font-size: clamp(28px, 3.5vw, 40px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  font-weight: 700;
  margin: 16px 0 0;
  max-width: 600px;
}

/* =========================================================================
   Video section
   ========================================================================= */
.video-section {
  padding: 8px 0 24px;
}
.video-frame {
  position: relative;
  width: 100%;
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: #0f172a;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-lg);
  aspect-ratio: 16 / 9;
}
.video-frame__player {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  background: #0f172a;
}
@media (max-width: 880px) {
  .video-section { padding: 0 0 16px; }
  .video-frame { border-radius: var(--radius-lg); }
}

/* =========================================================================
   How it works · Pipeline diagram
   ========================================================================= */
.pipeline { padding: 80px 0; }

.section-head__sub {
  margin: 16px 0 0;
  color: var(--text-secondary);
  font-size: 16px;
  line-height: 1.55;
  max-width: 600px;
  text-align: center;
}

.pipeline-diagram {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 56px minmax(0, 1.05fr) 80px minmax(0, 1.3fr);
  align-items: stretch;
  gap: 0;
  margin-top: 8px;
}

/* Nodes */
.pipe-node {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 22px;
  box-shadow: var(--shadow-sm);
  position: relative;
  transition: transform var(--transition), border-color var(--transition),
    box-shadow var(--transition);
}
.pipe-node:hover {
  border-color: var(--border-strong);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.pipe-node--input,
.pipe-node--ai { align-self: center; }

.pipe-node__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}
.pipe-node__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: var(--bg-soft);
  font-size: 20px;
  flex-shrink: 0;
}
.pipe-node__badge {
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-secondary);
  background: var(--bg-soft);
  border: 1px solid var(--border);
  padding: 4px 9px;
  border-radius: 999px;
  white-space: nowrap;
}
.pipe-node__badge--live {
  background: rgba(91, 91, 214, 0.08);
  border-color: rgba(91, 91, 214, 0.2);
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 5px;
}
.pipe-node__badge--live::before {
  content: '';
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--primary);
  animation: pulse 1.4s ease-in-out infinite;
}

.pipe-node h3 {
  margin: 0 0 12px;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: -0.01em;
}
.pipe-node h4 {
  margin: 0 0 3px;
  font-size: 14.5px;
  font-weight: 600;
  letter-spacing: -0.01em;
}
.pipe-node p {
  margin: 0;
  font-size: 13px;
  line-height: 1.5;
  color: var(--text-secondary);
}

/* Input node — field tags */
.pipe-tags {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.pipe-tags li {
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--bg-soft);
  border: 1px solid var(--border);
  padding: 4px 9px;
  border-radius: 6px;
  letter-spacing: -0.01em;
}

/* AI node */
.pipe-node--ai {
  border-color: rgba(91, 91, 214, 0.25);
  background: linear-gradient(180deg, var(--surface) 0%, rgba(91, 91, 214, 0.025) 100%);
}
.pipe-node__pulse {
  position: absolute;
  inset: -4px;
  border-radius: var(--radius-lg);
  border: 1.5px solid var(--primary);
  opacity: 0;
  animation: pulse-ring 2.4s var(--ease) infinite;
  pointer-events: none;
}
@keyframes pulse-ring {
  0% { transform: scale(0.99); opacity: 0.5; }
  100% { transform: scale(1.04); opacity: 0; }
}

.pipe-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 9px;
}
.pipe-steps li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13.5px;
  color: var(--text);
  line-height: 1.4;
}
.pipe-steps__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primary);
  flex-shrink: 0;
  box-shadow: 0 0 0 3px rgba(91, 91, 214, 0.15);
}

/* Connector — flowing dashes (Lead → AI) */
.pipe-connector {
  align-self: center;
  display: flex;
  align-items: center;
  height: 2px;
  padding: 0 4px;
}
.pipe-flow {
  flex: 1;
  height: 2px;
  background-image: linear-gradient(90deg, var(--primary) 50%, transparent 50%);
  background-size: 10px 2px;
  background-repeat: repeat-x;
  animation: flow-h 0.9s linear infinite;
  border-radius: 2px;
}
@keyframes flow-h {
  to { background-position: 10px 0; }
}

/* Branch SVG (AI → 3 outputs) */
.pipe-branch {
  width: 100%;
  height: 100%;
  align-self: stretch;
  overflow: visible;
}
.pipe-branch path {
  fill: none;
  stroke: var(--primary);
  stroke-width: 2;
  stroke-dasharray: 6 6;
  stroke-linecap: round;
  animation: branch-flow 1.2s linear infinite;
}
@keyframes branch-flow {
  to { stroke-dashoffset: -24; }
}

/* Output stack */
.pipe-outputs {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.pipe-node--out {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  align-items: center;
  padding: 14px 18px;
}
.pipe-node--out .pipe-node__icon { width: 38px; height: 38px; font-size: 18px; }
.pipe-node--out p { font-size: 12.5px; line-height: 1.45; }

/* Footnote */
.pipeline-footnote {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin: 40px 0 0;
  font-size: 13px;
  color: var(--text-secondary);
  text-align: center;
}
.pipeline-footnote__dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 0 3px rgba(22, 163, 74, 0.15);
}
.pipeline-footnote strong {
  color: var(--text);
  font-weight: 600;
}

/* Reply loop sub-diagram */
.reply-loop {
  margin-top: 32px;
  padding: 24px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(135deg, rgba(91, 91, 214, 0.04) 0%, rgba(139, 92, 246, 0.025) 100%),
    var(--surface);
  box-shadow: var(--shadow-sm);
}
.reply-loop__head {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 24px;
}
.reply-loop__badge {
  flex-shrink: 0;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--primary);
  background: var(--primary-soft);
  border: 1px solid rgba(91, 91, 214, 0.2);
  padding: 5px 10px;
  border-radius: 999px;
  margin-top: 2px;
}
.reply-loop__copy {
  margin: 0;
  font-size: 14px;
  line-height: 1.55;
  color: var(--text-secondary);
}
.reply-loop__copy strong {
  color: var(--text);
  font-weight: 600;
}

.reply-loop__diagram {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 60px minmax(0, 1fr) 60px minmax(0, 1fr);
  align-items: center;
  gap: 0;
}
.reply-loop__node {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 6px;
  padding: 18px 14px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  position: relative;
  transition: transform var(--transition), border-color var(--transition),
    box-shadow var(--transition);
}
.reply-loop__node:hover {
  border-color: var(--border-strong);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}
.reply-loop__icon {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: var(--bg-soft);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  margin-bottom: 4px;
}
.reply-loop__name {
  font-size: 13.5px;
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.01em;
}
.reply-loop__sub {
  font-size: 12px;
  color: var(--text-tertiary);
  line-height: 1.4;
}

.reply-loop__node--ai {
  border-color: rgba(91, 91, 214, 0.25);
  background: linear-gradient(180deg, var(--surface) 0%, rgba(91, 91, 214, 0.03) 100%);
}
.reply-loop__pulse {
  position: absolute;
  inset: -4px;
  border-radius: var(--radius-md);
  border: 1.5px solid var(--primary);
  opacity: 0;
  animation: pulse-ring 2.4s var(--ease) infinite;
  pointer-events: none;
}

.reply-loop__flow {
  display: block;
  height: 2px;
  width: 100%;
  background-image: linear-gradient(90deg, var(--primary) 50%, transparent 50%);
  background-size: 10px 2px;
  background-repeat: repeat-x;
  animation: flow-h 0.9s linear infinite;
  border-radius: 2px;
}

.reply-loop__cycle {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 18px;
  font-size: 12.5px;
  color: var(--text-tertiary);
}
.reply-loop__cycle svg {
  color: var(--primary);
  animation: spin-slow 4s linear infinite;
  flex-shrink: 0;
}
@keyframes spin-slow {
  to { transform: rotate(360deg); }
}

@media (max-width: 880px) {
  .reply-loop { padding: 20px; }
  .reply-loop__diagram {
    grid-template-columns: 1fr;
    gap: 10px;
  }
  .reply-loop__flow {
    width: 2px;
    height: 22px;
    margin: 0 auto;
    background-image: linear-gradient(180deg, var(--primary) 50%, transparent 50%);
    background-size: 2px 8px;
    animation: flow-v 0.9s linear infinite;
  }
}
@media (max-width: 480px) {
  .reply-loop__head {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }
}

/* =========================================================================
   Demo
   ========================================================================= */
.demo { padding: 40px 0 120px; }

.demo-notice {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 16px 20px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(135deg, rgba(91, 91, 214, 0.06) 0%, rgba(139, 92, 246, 0.04) 100%),
    var(--surface);
  margin-bottom: 32px;
  box-shadow: var(--shadow-sm);
}
.demo-notice__main {
  display: flex;
  align-items: center;
  gap: 16px;
  flex: 1;
  min-width: 0;
}
.demo-notice__pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 10px;
  background: var(--surface);
  border: 1px solid rgba(91, 91, 214, 0.25);
  border-radius: 999px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--primary);
  white-space: nowrap;
  flex-shrink: 0;
  box-shadow: var(--shadow-xs);
}
.demo-notice__pill::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primary);
  animation: pulse 1.4s ease-in-out infinite;
}
.demo-notice__text {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.55;
  color: var(--text-secondary);
}
.demo-notice__text strong {
  color: var(--text);
  font-weight: 600;
}
.demo-notice__cta { flex-shrink: 0; }

@media (max-width: 720px) {
  .demo-notice {
    flex-direction: column;
    align-items: stretch;
    gap: 14px;
  }
  .demo-notice__main {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }
  .demo-notice__cta {
    align-self: flex-start;
  }
}
.demo__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
  gap: 24px;
  align-items: start;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-sm);
}
.card__head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 24px;
}
.card__head h3 {
  font-size: 16px;
  font-weight: 600;
  margin: 0 0 4px;
  letter-spacing: -0.01em;
}
.card__head p { margin: 0; font-size: 13.5px; color: var(--text-secondary); }

/* =========================================================================
   Tabs
   ========================================================================= */
.tabs {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: 20px;
}
.tab {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 12px;
  border: 0;
  background: transparent;
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 500;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}
.tab:hover { color: var(--text); }
.tab--active {
  background: var(--surface);
  color: var(--text);
  box-shadow: var(--shadow-xs);
}
.tab__pill {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  background: var(--primary-soft);
  color: var(--primary);
  padding: 2px 6px;
  border-radius: 4px;
  margin-left: 2px;
}

.tab-panel { animation: slide-up 240ms var(--ease); }

/* =========================================================================
   Bulk upload
   ========================================================================= */
.bulk { display: flex; flex-direction: column; gap: 16px; }

.bulk__sample {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 16px;
  background: linear-gradient(180deg, var(--surface) 0%, var(--bg-soft) 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}
.bulk__sample-info {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}
.bulk__sample-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--surface);
  border: 1px solid var(--border);
  font-size: 18px;
  flex-shrink: 0;
}
.bulk__sample-title {
  font-size: 13.5px;
  font-weight: 600;
  color: var(--text);
}
.bulk__sample-sub {
  font-size: 12.5px;
  color: var(--text-secondary);
  margin-top: 1px;
}

.dropzone {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 36px 20px;
  border: 1.5px dashed var(--border-strong);
  border-radius: var(--radius-md);
  background: var(--surface-2);
  cursor: pointer;
  text-align: center;
  transition: all var(--transition);
  outline: none;
}
.dropzone:hover,
.dropzone:focus-visible {
  border-color: var(--primary);
  background: var(--primary-soft);
}
.dropzone--dragging {
  border-color: var(--primary);
  background: var(--primary-soft);
  transform: scale(1.005);
}
.dropzone__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--primary);
  margin-bottom: 4px;
}
.dropzone__title {
  font-size: 14.5px;
  font-weight: 600;
  color: var(--text);
}
.dropzone__sub {
  font-size: 12.5px;
  color: var(--text-tertiary);
}
.dropzone__link {
  color: var(--primary);
  font-weight: 500;
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
}

.bulk-error {
  padding: 10px 14px;
  background: var(--danger-soft);
  border: 1px solid rgba(220, 38, 38, 0.2);
  border-radius: var(--radius-md);
  color: var(--danger);
  font-size: 13px;
  animation: slide-up 240ms var(--ease);
}

.bulk-preview {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--surface);
  animation: slide-up 240ms var(--ease);
}
.bulk-preview__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  background: var(--surface-2);
  border-bottom: 1px solid var(--border);
}
.bulk-preview__count { font-size: 13px; color: var(--text); }
.bulk-preview__count strong { font-feature-settings: 'tnum'; }
.bulk-preview__file {
  display: block;
  font-size: 11.5px;
  color: var(--text-tertiary);
  margin-top: 1px;
  font-family: var(--font-mono);
}
.bulk-preview__table-wrap { overflow-x: auto; }

.table--compact { font-size: 12.5px; }
.table--compact th { padding: 9px 12px; }
.table--compact td { padding: 8px 12px; }
.table--compact td .truncate {
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
  max-width: 240px;
  color: var(--text-secondary);
}
.table--compact tbody tr { cursor: default; }
.table--compact tbody tr:hover { background: var(--surface); }

/* Bulk progress in result panel */
.bulk-progress {
  list-style: none;
  margin: 0;
  padding: 8px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--bg);
}
.bulk-progress__row {
  display: grid;
  grid-template-columns: 28px 1fr auto;
  gap: 12px;
  align-items: center;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  background: var(--surface);
  font-size: 13.5px;
  transition: background var(--transition), opacity var(--transition);
  opacity: 0.55;
}
.bulk-progress__row[data-state='running'] { opacity: 1; background: var(--primary-soft); }
.bulk-progress__row[data-state='done'] { opacity: 1; }
.bulk-progress__row[data-state='error'] { opacity: 1; background: var(--danger-soft); }
.bulk-progress__num {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  font-size: 11px;
  font-weight: 600;
  color: var(--text-secondary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-feature-settings: 'tnum';
}
.bulk-progress__row[data-state='done'] .bulk-progress__num {
  background: var(--success-soft);
  border-color: rgba(22, 163, 74, 0.3);
  color: var(--success);
}
.bulk-progress__row[data-state='running'] .bulk-progress__num {
  background: var(--surface);
  border-color: var(--primary);
  color: var(--primary);
}
.bulk-progress__row[data-state='error'] .bulk-progress__num {
  background: var(--surface);
  border-color: var(--danger);
  color: var(--danger);
}
.bulk-progress__name {
  font-weight: 500;
  color: var(--text);
}
.bulk-progress__email {
  display: block;
  font-size: 12px;
  color: var(--text-tertiary);
  margin-top: 1px;
}
.bulk-progress__status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--text-tertiary);
  white-space: nowrap;
}
.bulk-progress__row[data-state='running'] .bulk-progress__status { color: var(--primary); }
.bulk-progress__row[data-state='done'] .bulk-progress__status { color: var(--success); }
.bulk-progress__row[data-state='error'] .bulk-progress__status { color: var(--danger); }
.bulk-progress__spinner {
  width: 12px;
  height: 12px;
  border: 2px solid var(--primary);
  border-top-color: transparent;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

.bulk-summary {
  margin-top: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  background: var(--success-soft);
  border: 1px solid rgba(22, 163, 74, 0.2);
  border-radius: var(--radius-md);
  color: var(--success);
  font-weight: 500;
  font-size: 14px;
  animation: slide-up 320ms var(--ease);
}
.bulk-summary__check {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--success);
  color: white;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
  flex-shrink: 0;
}
.bulk-summary > :nth-child(2) { flex: 1; }

/* =========================================================================
   Form
   ========================================================================= */
.form { display: flex; flex-direction: column; gap: 18px; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field label {
  font-size: 13px;
  font-weight: 500;
  color: var(--text);
}
.field input,
.field textarea {
  font-family: inherit;
  font-size: 14px;
  line-height: 1.5;
  padding: 10px 12px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  background: var(--surface);
  color: var(--text);
  transition: border-color var(--transition), box-shadow var(--transition);
  width: 100%;
}
.field input::placeholder,
.field textarea::placeholder { color: var(--text-tertiary); }
.field input:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(91, 91, 214, 0.15);
}
.field textarea { resize: vertical; min-height: 96px; }
.field--error input,
.field--error textarea { border-color: var(--danger); }
.field--error input:focus,
.field--error textarea:focus {
  box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.15);
}
.field__error {
  font-size: 12.5px;
  color: var(--danger);
  opacity: 0;
  transform: translateY(-4px);
  transition: opacity var(--transition), transform var(--transition);
  min-height: 16px;
}
.field--error .field__error { opacity: 1; transform: translateY(0); }

/* =========================================================================
   Status pill
   ========================================================================= */
.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 500;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  white-space: nowrap;
  transition: all var(--transition);
}
.status-pill::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--text-tertiary);
}
.status-pill--running {
  background: rgba(91, 91, 214, 0.08);
  border-color: rgba(91, 91, 214, 0.2);
  color: var(--primary);
}
.status-pill--running::before {
  background: var(--primary);
  animation: pulse 1.4s ease-in-out infinite;
}
.status-pill--done {
  background: var(--success-soft);
  border-color: rgba(22, 163, 74, 0.2);
  color: var(--success);
}
.status-pill--done::before { background: var(--success); }
.status-pill--error {
  background: var(--danger-soft);
  border-color: rgba(220, 38, 38, 0.2);
  color: var(--danger);
}
.status-pill--error::before { background: var(--danger); }
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* =========================================================================
   Result panel
   ========================================================================= */
.result__empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 56px 24px;
  text-align: center;
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius-md);
  color: var(--text-tertiary);
  font-size: 14px;
  background: var(--surface-2);
}
.empty-illustration {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: var(--bg-soft);
  margin-bottom: 16px;
  position: relative;
  overflow: hidden;
}
.empty-illustration::before,
.empty-illustration::after {
  content: '';
  position: absolute;
  border-radius: 4px;
  background: var(--border-strong);
}
.empty-illustration::before { top: 14px; left: 12px; right: 12px; height: 6px; }
.empty-illustration::after { top: 28px; left: 12px; width: 50%; height: 6px; }

/* Steps timeline */
.steps {
  list-style: none;
  margin: 0;
  padding: 8px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--bg);
}
.step-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  background: var(--surface);
  font-size: 14px;
  transition: background var(--transition), opacity var(--transition);
  opacity: 0.55;
}
.step-row__icon {
  font-size: 15px;
  width: 28px;
  height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-soft);
  border-radius: 8px;
  flex-shrink: 0;
}
.step-row__label { flex: 1; color: var(--text-secondary); }
.step-row__status {
  width: 18px;
  height: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.step-row[data-state='running'] {
  opacity: 1;
  background: var(--primary-soft);
}
.step-row[data-state='running'] .step-row__label {
  color: var(--text);
  font-weight: 500;
}
.step-row[data-state='running'] .step-row__status::after {
  content: '';
  width: 12px;
  height: 12px;
  border: 2px solid var(--primary);
  border-top-color: transparent;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}
.step-row[data-state='done'] { opacity: 1; }
.step-row[data-state='done'] .step-row__label { color: var(--text); }
.step-row[data-state='done'] .step-row__status::after {
  content: '✓';
  color: var(--success);
  font-weight: 700;
  font-size: 13px;
}

/* Completed banner */
.completed {
  margin-top: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  background: var(--success-soft);
  border: 1px solid rgba(22, 163, 74, 0.2);
  border-radius: var(--radius-md);
  color: var(--success);
  font-weight: 500;
  font-size: 14px;
  animation: slide-up 320ms var(--ease);
}
.completed__check {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--success);
  color: white;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
  flex-shrink: 0;
}
.completed > :nth-child(2) { flex: 1; }

/* Output blocks */
.output {
  margin-top: 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  animation: slide-up 320ms var(--ease);
  background: var(--surface);
}
.output__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  background: var(--surface-2);
  border-bottom: 1px solid var(--border);
}
.output__label {
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-secondary);
}
.output__meta {
  font-size: 12px;
  color: var(--text-tertiary);
  font-feature-settings: 'tnum';
}
.output__body {
  margin: 0;
  padding: 16px;
  font-family: var(--font);
  font-size: 14px;
  line-height: 1.6;
  color: var(--text);
  white-space: pre-wrap;
  word-wrap: break-word;
}
.output__rows {
  display: flex;
  flex-direction: column;
  padding: 6px 0;
}
.output__rows .kv {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  padding: 8px 14px;
}
.output__rows .kv + .kv { border-top: 1px solid var(--border); }
.output__rows .kv__k {
  color: var(--text-tertiary);
  font-size: 12.5px;
  flex-shrink: 0;
}
.output__rows .kv__v {
  color: var(--text);
  font-size: 13.5px;
  font-weight: 500;
  text-align: right;
  word-break: break-all;
  font-family: var(--font-mono);
}

/* Logs */
.logs {
  list-style: none;
  margin: 0;
  padding: 14px 16px;
  background: #0f172a;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: #cbd5e1;
  display: flex;
  flex-direction: column;
  gap: 4px;
  max-height: 220px;
  overflow-y: auto;
}
.logs li {
  display: flex;
  gap: 12px;
  align-items: baseline;
  animation: log-in 220ms ease-out;
}
.logs .log__time { color: #64748b; flex-shrink: 0; }
.logs .log__msg { color: #e2e8f0; word-break: break-word; }

@keyframes log-in {
  from { opacity: 0; transform: translateX(-4px); }
  to { opacity: 1; transform: translateX(0); }
}
@keyframes slide-up {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* =========================================================================
   Leads section
   ========================================================================= */
.leads { padding: 0 0 120px; }

.section-head--row {
  flex-direction: row;
  justify-content: space-between;
  align-items: flex-end;
  text-align: left;
  margin-bottom: 24px;
}
.section-head--row .section-head__text { display: flex; flex-direction: column; align-items: flex-start; gap: 12px; }
.section-head--row h2 { margin: 0; }

.btn--sm { padding: 7px 12px; font-size: 13px; gap: 6px; }
.btn--sm svg { width: 14px; height: 14px; }

.leads-card { padding: 0; overflow: hidden; }

.table-wrap { width: 100%; overflow-x: auto; }

.table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
.table thead th {
  text-align: left;
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-secondary);
  background: var(--surface-2);
  padding: 12px 20px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
.table tbody tr {
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  transition: background var(--transition);
}
.table tbody tr:last-child { border-bottom: none; }
.table tbody tr:hover { background: var(--surface-2); }
.table tbody tr.is-open { background: var(--primary-soft); }
.table tbody tr.is-open:hover { background: var(--primary-soft); }

.table td {
  padding: 14px 20px;
  vertical-align: top;
  color: var(--text);
}
.ta-right { text-align: right; }
.table th.ta-right, .table td.ta-right { text-align: right; }

.cell-lead { min-width: 200px; }
.cell-lead__name { font-weight: 500; color: var(--text); line-height: 1.3; }
.cell-lead__email {
  display: block;
  font-size: 12.5px;
  color: var(--text-tertiary);
  font-feature-settings: 'tnum';
  margin-top: 2px;
}

.cell-business {
  display: inline-flex;
  align-items: center;
  padding: 3px 9px;
  border-radius: 999px;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  font-size: 12.5px;
  font-weight: 500;
  color: var(--text-secondary);
  white-space: nowrap;
}

.cell-message {
  color: var(--text-secondary);
  font-size: 13.5px;
  line-height: 1.45;
  max-width: 320px;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

.cell-time {
  color: var(--text-tertiary);
  font-size: 12.5px;
  font-feature-settings: 'tnum';
  white-space: nowrap;
}

/* Expanded row */
.row-detail td {
  padding: 0;
  background: var(--surface-2);
  border-top: 1px solid var(--border);
}
.row-detail__inner {
  padding: 18px 20px 22px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}
.row-detail__block {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.row-detail__label {
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-tertiary);
}
.row-detail__body {
  margin: 0;
  font-family: var(--font);
  font-size: 13.5px;
  line-height: 1.55;
  color: var(--text);
  white-space: pre-wrap;
  word-wrap: break-word;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 12px 14px;
}
.row-detail__meta {
  font-size: 12px;
  color: var(--text-tertiary);
  font-feature-settings: 'tnum';
}

/* States */
.leads-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 56px 24px;
  color: var(--text-tertiary);
  font-size: 14px;
}
.leads-state--empty p { margin: 0; }
.leads-state__spinner {
  width: 18px;
  height: 18px;
  border: 2px solid var(--border-strong);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

/* Pagination */
.pagination {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 20px;
  border-top: 1px solid var(--border);
  background: var(--surface-2);
}
.pagination__info {
  font-size: 13px;
  color: var(--text-secondary);
  font-feature-settings: 'tnum';
}
.pagination__controls { display: flex; gap: 8px; }
.btn--ghost:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}
.btn--ghost:disabled:hover {
  background: transparent;
  border-color: var(--border-strong);
}

@media (max-width: 720px) {
  .row-detail__inner { grid-template-columns: 1fr; }
  .cell-message { max-width: 220px; }
}
@media (max-width: 560px) {
  .table thead { display: none; }
  .table tbody tr { display: grid; gap: 6px; padding: 14px 16px; cursor: pointer; }
  .table td { padding: 0; border: 0; }
  .cell-message { max-width: 100%; }
  .ta-right { text-align: left; }
  .pagination { flex-direction: column; gap: 12px; align-items: stretch; }
  .pagination__controls { justify-content: space-between; }
}

/* =========================================================================
   Responsive
   ========================================================================= */
@media (max-width: 880px) {
  .demo__grid { grid-template-columns: 1fr; }
  .nav__links { display: none; }
  .hero { padding: 64px 0 48px; }
  .pipeline, .demo { padding: 56px 0; }

  /* Stack pipeline vertically on mobile/tablet */
  .pipeline-diagram {
    display: flex;
    flex-direction: column;
    gap: 12px;
    position: relative;
  }
  .pipe-connector--single,
  .pipe-branch {
    display: none;
  }
  .pipe-node--input,
  .pipe-node--ai,
  .pipe-node--out { align-self: stretch; }
  /* Vertical flow indicator between blocks */
  .pipe-node--input::after,
  .pipe-node--ai::after {
    content: '';
    display: block;
    width: 2px;
    height: 24px;
    margin: 12px auto -6px;
    background-image: linear-gradient(180deg, var(--primary) 50%, transparent 50%);
    background-size: 2px 8px;
    animation: flow-v 0.9s linear infinite;
  }
  @keyframes flow-v {
    to { background-position: 0 8px; }
  }
}
@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .card { padding: 20px; }
  .hero__cta { flex-direction: column; width: 100%; }
  .hero__cta .btn { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}