/* ============================================================
   Clinigo — landing page styles
   Palette: deep blue #1E40AF · accent #2563EB · tints #DBEAFE/#EFF6FF
   Text #0F172A · green reserved for converted/success states
   ============================================================ */

:root {
  --blue-900: #1E40AF;
  --blue-950: #172F8C;
  --blue-600: #2563EB;
  --blue-500: #3B82F6;
  --blue-100: #DBEAFE;
  --blue-50: #EFF6FF;
  --navy: #0F172A;
  --slate: #475569;
  --slate-light: #94A3B8;
  --border: #E3EAF6;
  --green: #16A34A;
  --green-bg: #EAF7EF;
  --surface: #FFFFFF;
  --radius: 16px;
  --radius-sm: 12px;
  --shadow-soft: 0 10px 30px rgba(30, 64, 175, 0.08);
  --shadow-lift: 0 18px 44px rgba(30, 64, 175, 0.14);
  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
}

body {
  font-family: var(--font);
  color: var(--navy);
  background: #fff;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

.container { max-width: 1160px; margin: 0 auto; padding: 0 24px; }

.ic { width: 1.1em; height: 1.1em; flex: none; vertical-align: -0.18em; }

h1, h2, h3, h4 { line-height: 1.15; letter-spacing: -0.02em; font-weight: 700; }

section { position: relative; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font: inherit;
  font-weight: 600;
  border: 1px solid transparent;
  border-radius: 10px;
  padding: 11px 22px;
  font-size: 0.95rem;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease,
              box-shadow 0.25s ease, transform 0.2s ease;
  white-space: nowrap;
}
.btn:focus-visible { outline: 2px solid var(--blue-600); outline-offset: 2px; }

.btn-primary { background: var(--blue-600); color: #fff; box-shadow: 0 4px 14px rgba(37, 99, 235, 0.25); }
.btn-primary:hover { background: var(--blue-900); transform: translateY(-1px); box-shadow: 0 8px 22px rgba(30, 64, 175, 0.3); }

.btn-secondary { background: #fff; color: var(--blue-900); border-color: var(--blue-100); box-shadow: 0 2px 8px rgba(30, 64, 175, 0.06); }
.btn-secondary:hover { border-color: var(--blue-600); color: var(--blue-600); transform: translateY(-1px); }

.btn-ghost { background: transparent; color: var(--slate); border-color: var(--border); }
.btn-ghost:hover { color: var(--blue-900); border-color: var(--blue-100); background: var(--blue-50); }

.btn-white { background: #fff; color: var(--blue-900); }
.btn-white:hover { background: var(--blue-50); transform: translateY(-1px); box-shadow: 0 10px 26px rgba(15, 23, 42, 0.25); }

.btn-lg { padding: 14px 28px; font-size: 1.02rem; border-radius: 12px; }
.btn-sm { padding: 9px 18px; font-size: 0.9rem; }
.btn-xs { padding: 7px 13px; font-size: 0.82rem; border-radius: 8px; }
.btn-block { width: 100%; }

/* ---------- Header ---------- */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}
.site-header.scrolled { border-bottom-color: var(--border); box-shadow: 0 4px 20px rgba(30, 64, 175, 0.06); }

.header-inner { display: flex; align-items: center; justify-content: space-between; height: 68px; gap: 24px; }

.logo { display: inline-flex; align-items: center; gap: 9px; text-decoration: none; color: var(--navy); font-weight: 800; font-size: 1.22rem; letter-spacing: -0.02em; }
.logo-mark {
  width: 32px; height: 32px;
  display: inline-flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, var(--blue-600), var(--blue-900));
  color: #fff; border-radius: 9px;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.35);
}
.logo-mark .ic { width: 17px; height: 17px; }

.nav-links { display: flex; gap: 28px; }
.nav-links a { color: var(--slate); text-decoration: none; font-size: 0.93rem; font-weight: 500; transition: color 0.2s ease; }
.nav-links a:hover, .nav-links a:focus-visible { color: var(--blue-900); }

.header-actions { display: flex; align-items: center; gap: 12px; }

.menu-btn {
  display: none;
  flex-direction: column; justify-content: center; gap: 5px;
  width: 40px; height: 40px;
  background: none; border: 1px solid var(--border); border-radius: 10px;
  cursor: pointer; padding: 0 9px;
}
.menu-btn span { display: block; height: 2px; background: var(--navy); border-radius: 2px; transition: transform 0.25s ease, opacity 0.25s ease; }
.site-header.open .menu-btn span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.site-header.open .menu-btn span:nth-child(2) { opacity: 0; }
.site-header.open .menu-btn span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-menu {
  display: none;
  flex-direction: column; gap: 4px;
  padding: 12px 24px 20px;
  border-top: 1px solid var(--border);
  background: #fff;
}
.mobile-menu a { padding: 11px 4px; color: var(--navy); text-decoration: none; font-weight: 500; border-radius: 8px; }
.mobile-menu a:hover { color: var(--blue-600); }
.mobile-menu .btn { margin-top: 10px; }
.site-header.open .mobile-menu { display: flex; }

/* ---------- Hero ---------- */
.hero {
  padding: 148px 0 96px;
  background: linear-gradient(180deg, var(--blue-50) 0%, #fff 78%);
  overflow: hidden;
}
.hero-glow {
  position: absolute;
  top: -180px; left: 50%;
  width: 900px; height: 560px;
  transform: translateX(-50%);
  background: radial-gradient(closest-side, rgba(37, 99, 235, 0.16), transparent 70%);
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.25fr);
  gap: 56px;
  align-items: center;
  position: relative;
}

.eyebrow {
  display: inline-flex; align-items: center; gap: 7px;
  background: #fff; color: var(--blue-900);
  border: 1px solid var(--blue-100);
  font-size: 0.82rem; font-weight: 600;
  padding: 6px 14px; border-radius: 999px;
  box-shadow: 0 2px 10px rgba(30, 64, 175, 0.07);
  margin-bottom: 22px;
}
.eyebrow .ic { color: var(--blue-600); }

.hero h1 {
  font-size: clamp(2.3rem, 4.6vw, 3.45rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 18px;
}

.hero-sub { font-size: 1.13rem; color: var(--slate); max-width: 46ch; margin-bottom: 30px; }

.hero-ctas { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 18px; }

.hero-note { font-size: 0.88rem; color: var(--slate-light); }

/* ---------- Demo frame ---------- */
.demo-wrap { position: relative; }
.demo-wrap::before {
  content: "";
  position: absolute;
  inset: -8% -6%;
  background: radial-gradient(closest-side, rgba(37, 99, 235, 0.18), transparent 72%);
  filter: blur(10px);
  z-index: 0;
  pointer-events: none;
}

.browser-frame {
  position: relative; z-index: 1;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lift);
  overflow: hidden;
}

.browser-top {
  display: flex; align-items: center; gap: 7px;
  padding: 11px 16px;
  border-bottom: 1px solid var(--border);
  background: #FBFDFF;
}
.browser-top .dot { width: 10px; height: 10px; border-radius: 50%; background: var(--blue-100); }
.browser-top .dot:first-child { background: var(--blue-600); opacity: 0.5; }
.browser-top .address {
  margin-left: 12px;
  flex: 1;
  max-width: 260px;
  background: var(--blue-50);
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.76rem;
  color: var(--slate);
  padding: 4px 12px;
}

/* Step indicator */
.demo-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr) auto;
  gap: 10px;
  align-items: center;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  background: #fff;
}
.demo-step { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.step-label {
  font-size: 0.72rem; font-weight: 600; color: var(--slate-light);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  transition: color 0.3s ease;
}
.demo-step.active .step-label { color: var(--blue-600); }
.demo-step.done .step-label { color: var(--blue-900); }
.bar { display: block; height: 4px; border-radius: 4px; background: var(--blue-50); overflow: hidden; }
.bar-fill { display: block; height: 100%; width: 0; border-radius: 4px; background: linear-gradient(90deg, var(--blue-500), var(--blue-600)); transition: width 0s linear; }
.demo-step.done .bar-fill { width: 100%; }

.replay-btn {
  display: inline-flex; align-items: center; gap: 6px;
  font: inherit; font-size: 0.75rem; font-weight: 600;
  color: var(--slate); background: none;
  border: 1px solid var(--border); border-radius: 8px;
  padding: 6px 10px; cursor: pointer;
  transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}
.replay-btn:hover { color: var(--blue-600); border-color: var(--blue-100); background: var(--blue-50); }
.replay-btn:focus-visible { outline: 2px solid var(--blue-600); outline-offset: 2px; }

/* Stage */
.demo-stage {
  position: relative;
  height: 470px;
  background: linear-gradient(180deg, #F8FBFF, #F3F7FE);
  overflow: hidden;
}
.stage-inner { position: absolute; inset: 0; transition: opacity 0.5s ease; }
.stage-inner.fade { opacity: 0; }

/* --- ERP table panel --- */
.erp-panel {
  position: absolute;
  top: 18px; left: 18px; right: 18px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-soft);
  padding: 14px 16px 10px;
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.7s ease, transform 0.7s ease, filter 0.7s ease;
  transform-origin: left top;
}
.erp-panel.visible { opacity: 1; transform: translateY(0); }
.erp-panel.shrunk {
  transform: translate(-12px, 0) scale(0.62);
  opacity: 0.4;
  filter: saturate(0.85);
}

.erp-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 10px; }
.erp-title { font-size: 0.82rem; font-weight: 700; color: var(--navy); }

.badge-synced {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 0.7rem; font-weight: 600; color: var(--blue-900);
  background: var(--blue-50); border: 1px solid var(--blue-100);
  padding: 3px 10px; border-radius: 999px;
  opacity: 0; transform: scale(0.85);
  transition: opacity 0.4s ease 0.5s, transform 0.4s ease 0.5s;
}
.erp-panel.visible .badge-synced { opacity: 1; transform: scale(1); }
.sync-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--blue-600); animation: pulse-dot 2s ease-in-out infinite; }
@keyframes pulse-dot { 0%, 100% { box-shadow: 0 0 0 0 rgba(37, 99, 235, 0.4); } 50% { box-shadow: 0 0 0 4px rgba(37, 99, 235, 0); } }

.erp-table-wrap { position: relative; overflow: hidden; border-radius: 8px; }

.erp-table { width: 100%; border-collapse: collapse; font-size: 0.76rem; }
.erp-table th {
  text-align: left; font-size: 0.64rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.06em;
  color: var(--slate-light);
  padding: 4px 8px 6px; border-bottom: 1px solid var(--border);
}
.erp-table td { padding: 6.5px 8px; border-bottom: 1px solid #EEF3FB; color: var(--navy); white-space: nowrap; }
.erp-table tr:last-child td { border-bottom: none; }
.erp-table .num { font-variant-numeric: tabular-nums; }

.erp-table tbody tr { transition: background 0.4s ease, box-shadow 0.4s ease; }
.erp-table tbody tr.lit { background: var(--blue-50); box-shadow: inset 0 0 0 1px var(--blue-100); }

/* skeleton -> data swap */
.cell-skel, .cell-data { display: inline-block; }
.cell-skel {
  height: 10px; border-radius: 5px;
  background: linear-gradient(90deg, #EAF0FA 25%, #F6F9FE 50%, #EAF0FA 75%);
  background-size: 200% 100%;
  animation: shimmer 1.3s linear infinite;
  vertical-align: middle;
}
@keyframes shimmer { from { background-position: 200% 0; } to { background-position: -200% 0; } }
.cell-data { opacity: 0; transform: translateY(3px); transition: opacity 0.35s ease, transform 0.35s ease; }
tr.loaded .cell-skel { display: none; }
tr.loaded .cell-data { opacity: 1; transform: none; }
tr:not(.loaded) .cell-data { display: none; }

.row-tag {
  display: inline-block;
  margin-left: 8px;
  font-size: 0.62rem; font-weight: 600;
  padding: 1.5px 8px; border-radius: 999px;
  background: var(--blue-100); color: var(--blue-900);
  transform: scale(0); opacity: 0;
  transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1), opacity 0.3s ease;
  vertical-align: middle;
}
.row-tag.muted { background: #EDF1F7; color: var(--slate-light); }
.row-tag.show { transform: scale(1); opacity: 1; }

/* scanning sweep */
.scan-bar {
  position: absolute;
  left: 0; right: 0; top: -70px;
  height: 58px;
  background: linear-gradient(180deg, transparent, rgba(37, 99, 235, 0.12) 45%, rgba(37, 99, 235, 0.16) 55%, transparent);
  border-top: 1px solid rgba(37, 99, 235, 0.25);
  border-bottom: 1px solid rgba(37, 99, 235, 0.25);
  opacity: 0;
  pointer-events: none;
  z-index: 2;
}
.erp-panel.scanning .scan-bar { animation: scan-sweep 2.4s ease-in-out forwards; }
@keyframes scan-sweep {
  0% { opacity: 0; transform: translateY(0); }
  8% { opacity: 1; }
  92% { opacity: 1; }
  100% { opacity: 0; transform: translateY(340px); }
}

/* --- AI reasoning card --- */
.reasoning-card {
  position: absolute;
  right: 18px; top: 54px;
  width: 300px;
  background: #fff;
  border: 1px solid var(--blue-100);
  border-radius: var(--radius-sm);
  box-shadow: 0 14px 34px rgba(37, 99, 235, 0.16);
  padding: 14px 16px;
  opacity: 0;
  transform: translateX(26px);
  transition: opacity 0.6s ease, transform 0.6s ease;
  z-index: 3;
}
.reasoning-card.visible { opacity: 1; transform: translateX(0); }
.reasoning-card.hide { opacity: 0; transform: translateX(26px); pointer-events: none; }

.reasoning-head {
  display: flex; align-items: center; gap: 7px;
  font-size: 0.8rem; font-weight: 700; color: var(--blue-900);
  margin-bottom: 10px;
}
.reasoning-head .sparkle { color: var(--blue-600); filter: drop-shadow(0 0 6px rgba(37, 99, 235, 0.5)); }

.reasoning-lines { list-style: none; display: flex; flex-direction: column; gap: 8px; min-height: 132px; }
.reasoning-lines li {
  font-size: 0.76rem; color: var(--slate); line-height: 1.45;
  padding-left: 16px; position: relative;
  min-height: 1.1em;
}
.reasoning-lines li::before {
  content: "";
  position: absolute; left: 2px; top: 7px;
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--blue-100);
  transition: background 0.3s ease;
}
.reasoning-lines li.typed::before, .reasoning-lines li.typing::before { background: var(--blue-600); }
.reasoning-lines li.typing::after {
  content: "";
  display: inline-block;
  width: 2px; height: 0.9em;
  background: var(--blue-600);
  margin-left: 2px;
  vertical-align: -0.15em;
  animation: caret-blink 0.8s step-end infinite;
}
@keyframes caret-blink { 50% { opacity: 0; } }

.confidence { display: flex; align-items: center; gap: 10px; margin-top: 12px; padding-top: 11px; border-top: 1px solid var(--border); }
.conf-label { font-size: 0.68rem; font-weight: 600; color: var(--slate-light); }
.conf-track { flex: 1; height: 6px; border-radius: 6px; background: var(--blue-50); overflow: hidden; }
.conf-fill { display: block; height: 100%; width: 0; border-radius: 6px; background: linear-gradient(90deg, var(--blue-500), var(--blue-900)); transition: width 1.1s ease; }
.conf-num { font-size: 0.78rem; font-weight: 700; color: var(--blue-900); font-variant-numeric: tabular-nums; min-width: 34px; text-align: right; }

/* --- Email composer --- */
.composer {
  position: absolute;
  top: 20px; right: 18px; bottom: 106px;
  width: min(62%, 430px);
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-lift);
  padding: 16px 18px;
  display: flex; flex-direction: column;
  opacity: 0;
  transform: translateX(115%);
  transition: opacity 0.7s ease, transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
  z-index: 4;
}
.composer.visible { opacity: 1; transform: translateX(0); }
.composer.fly {
  transform: translateX(130%) translateY(-24px) rotate(5deg) scale(0.92);
  opacity: 0;
  transition: opacity 0.9s ease, transform 0.9s cubic-bezier(0.5, 0, 0.75, 0.4);
}
.composer.fly::after {
  content: "";
  position: absolute;
  top: 40%; right: 100%;
  width: 140px; height: 3px;
  background: linear-gradient(90deg, transparent, rgba(37, 99, 235, 0.55));
  border-radius: 3px;
  animation: trail-fade 0.9s ease forwards;
}
@keyframes trail-fade { from { opacity: 1; } to { opacity: 0; } }

.ai-badge {
  position: absolute;
  top: -11px; right: 14px;
  display: inline-flex; align-items: center; gap: 5px;
  font-size: 0.66rem; font-weight: 700;
  color: #fff;
  background: linear-gradient(120deg, var(--blue-600), var(--blue-900));
  padding: 4px 11px; border-radius: 999px;
  box-shadow: 0 6px 14px rgba(37, 99, 235, 0.35);
}

.composer-field {
  display: flex; align-items: baseline; gap: 10px;
  padding: 7px 0;
  border-bottom: 1px solid #EEF3FB;
  font-size: 0.78rem;
  min-height: 30px;
}
.f-label { color: var(--slate-light); font-weight: 600; font-size: 0.7rem; min-width: 46px; }
.f-value { color: var(--navy); font-weight: 500; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.f-value.typing::after {
  content: "";
  display: inline-block;
  width: 2px; height: 0.95em;
  background: var(--blue-600);
  margin-left: 1px;
  vertical-align: -0.14em;
  animation: caret-blink 0.8s step-end infinite;
}

.composer-body { flex: 1; padding: 10px 0 6px; font-size: 0.78rem; color: var(--slate); overflow: hidden; }
.mail-greeting { min-height: 2.6em; line-height: 1.5; color: var(--navy); }
.mail-greeting.typing::after {
  content: "";
  display: inline-block; width: 2px; height: 0.95em;
  background: var(--blue-600); margin-left: 1px; vertical-align: -0.14em;
  animation: caret-blink 0.8s step-end infinite;
}

.offer-lines { display: flex; flex-direction: column; gap: 6px; margin: 8px 0 10px; }
.offer-line {
  display: flex; align-items: center; gap: 10px;
  background: var(--blue-50);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 7px 11px;
  font-size: 0.74rem;
  opacity: 0; transform: translateY(8px);
  transition: opacity 0.45s ease, transform 0.45s ease;
}
.offer-line.show { opacity: 1; transform: none; }
.o-name { font-weight: 600; color: var(--navy); flex: 1; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.o-qty { color: var(--slate-light); white-space: nowrap; }
.o-price { font-weight: 700; color: var(--blue-900); white-space: nowrap; font-variant-numeric: tabular-nums; }
.o-price s { color: var(--slate-light); font-weight: 400; margin-right: 5px; }
.o-price em { font-style: normal; font-weight: 400; color: var(--slate-light); font-size: 0.9em; }

.mail-closing { opacity: 0; transition: opacity 0.5s ease; line-height: 1.5; }
.mail-closing.show { opacity: 1; }

.composer-actions {
  display: flex; gap: 8px; align-items: center;
  padding-top: 12px; border-top: 1px solid #EEF3FB;
  opacity: 0; transform: translateY(6px);
  transition: opacity 0.45s ease, transform 0.45s ease;
}
.composer-actions.show { opacity: 1; transform: none; }
.composer-actions .send-btn { margin-left: auto; }
.send-btn.pulse { animation: send-pulse 0.9s ease-in-out infinite; }
@keyframes send-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(37, 99, 235, 0.45); }
  50% { box-shadow: 0 0 0 8px rgba(37, 99, 235, 0); }
}
.send-btn.clicked { transform: scale(0.93); background: var(--blue-900); }

/* --- Status bar (step 4) --- */
.status-bar {
  position: absolute;
  left: 18px; right: 18px; bottom: 16px;
  display: flex; flex-direction: column; gap: 10px;
  opacity: 0; transform: translateY(14px);
  transition: opacity 0.6s ease, transform 0.6s ease;
  z-index: 3;
}
.status-bar.visible { opacity: 1; transform: none; }

.pill-row { display: flex; gap: 8px; flex-wrap: wrap; }
.pill {
  display: inline-flex; align-items: center; gap: 5px;
  font-size: 0.72rem; font-weight: 600;
  color: var(--slate-light);
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 5px 13px;
  transition: background 0.35s ease, color 0.35s ease, border-color 0.35s ease, transform 0.35s ease;
}
.pill.on { background: var(--blue-600); border-color: var(--blue-600); color: #fff; transform: translateY(-2px); box-shadow: 0 6px 14px rgba(37, 99, 235, 0.3); }
.pill-converted .ic { width: 0.95em; height: 0.95em; }
.pill-converted.on { background: var(--green); border-color: var(--green); box-shadow: 0 6px 14px rgba(22, 163, 74, 0.3); }

.stats-mini {
  display: flex; align-items: center; gap: 26px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-soft);
  padding: 12px 18px;
}
.stat { display: flex; flex-direction: column; }
.stat-num { font-size: 1.05rem; font-weight: 800; color: var(--blue-900); font-variant-numeric: tabular-nums; letter-spacing: -0.02em; }
.stat-label { font-size: 0.66rem; font-weight: 600; color: var(--slate-light); text-transform: uppercase; letter-spacing: 0.05em; }
.sample-tag {
  margin-left: auto;
  font-size: 0.64rem; font-weight: 600; color: var(--slate-light);
  border: 1px dashed var(--border);
  border-radius: 999px;
  padding: 3px 10px;
  white-space: nowrap;
}

/* ---------- Scroll entrance animations ---------- */
[data-animate] {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.65s ease var(--d, 0s), transform 0.65s ease var(--d, 0s);
}
[data-animate].in-view { opacity: 1; transform: none; }

/* ---------- Sections shared ---------- */
.section-head { text-align: center; max-width: 640px; margin: 0 auto 52px; }
.section-head h2 { font-size: clamp(1.7rem, 3.2vw, 2.35rem); letter-spacing: -0.03em; margin-bottom: 14px; }
.section-sub { color: var(--slate); font-size: 1.02rem; }
.kicker {
  display: inline-flex; align-items: center; gap: 7px;
  color: var(--blue-600);
  font-size: 0.8rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.09em;
  margin-bottom: 14px;
}

/* ---------- Integrations ---------- */
.integrations { padding: 40px 0 72px; background: #fff; }
.strip-title { text-align: center; font-size: 0.95rem; font-weight: 600; color: var(--slate-light); margin-bottom: 26px; letter-spacing: 0; }
.chip-row { list-style: none; display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; }
.chip {
  display: inline-flex; align-items: center; gap: 9px;
  font-size: 0.88rem; font-weight: 600; color: var(--slate);
  background: #fff; border: 1px solid var(--border);
  border-radius: 999px; padding: 8px 18px 8px 9px;
  transition: border-color 0.25s ease, color 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
}
.chip:hover { border-color: var(--blue-100); color: var(--blue-900); transform: translateY(-2px); box-shadow: var(--shadow-soft); }
.chip-mono {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 28px; height: 28px; padding: 0 5px;
  border-radius: 8px;
  background: var(--blue-50); color: var(--blue-900);
  font-size: 0.62rem; font-weight: 800; letter-spacing: 0.02em;
}

/* ---------- How it works ---------- */
.how { padding: 88px 0; background: linear-gradient(180deg, #fff, var(--blue-50) 140%); }
.how-grid { list-style: none; display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; counter-reset: step; }
.how-card {
  position: relative;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px 22px 24px;
  box-shadow: var(--shadow-soft);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease,
              opacity 0.65s ease var(--d, 0s);
}
.how-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lift); border-color: var(--blue-100); }
.how-num {
  position: absolute; top: 18px; right: 20px;
  font-size: 2rem; font-weight: 800; color: var(--blue-50);
  -webkit-text-stroke: 1.5px var(--blue-100);
  line-height: 1;
}
.how-icon {
  display: inline-flex; align-items: center; justify-content: center;
  width: 44px; height: 44px;
  border-radius: 12px;
  background: var(--blue-50); color: var(--blue-600);
  margin-bottom: 16px;
}
.how-icon .ic { width: 21px; height: 21px; }
.how-card h3 { font-size: 1.04rem; margin-bottom: 8px; }
.how-card p { font-size: 0.88rem; color: var(--slate); }

/* ---------- Product / inbox mockup ---------- */
.product { padding: 88px 0; background: var(--blue-50); }

.inbox-frame {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lift);
  overflow: hidden;
}
.inbox-top {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  flex-wrap: wrap;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  background: #FBFDFF;
}
.inbox-top-left, .inbox-top-right { display: flex; gap: 8px; flex-wrap: wrap; }

.inbox-body {
  display: grid;
  grid-template-columns: 172px minmax(0, 1fr) minmax(0, 1.35fr);
  min-height: 520px;
}

.inbox-side { border-right: 1px solid var(--border); padding: 14px 10px; display: flex; flex-direction: column; gap: 3px; background: #FBFDFF; }
.folder-btn {
  display: flex; align-items: center; justify-content: space-between; gap: 8px;
  font: inherit; font-size: 0.86rem; font-weight: 500;
  color: var(--slate);
  background: none; border: none; border-radius: 9px;
  padding: 9px 12px;
  cursor: pointer;
  text-align: left;
  transition: background 0.2s ease, color 0.2s ease;
}
.folder-btn:hover { background: var(--blue-50); color: var(--blue-900); }
.folder-btn:focus-visible { outline: 2px solid var(--blue-600); outline-offset: -2px; }
.folder-btn.active { background: var(--blue-100); color: var(--blue-900); font-weight: 600; }
.folder-count {
  font-size: 0.68rem; font-weight: 700;
  min-width: 22px; text-align: center;
  color: var(--blue-900); background: #fff;
  border: 1px solid var(--border);
  border-radius: 999px; padding: 1px 6px;
}
.folder-btn.active .folder-count { background: var(--blue-600); border-color: var(--blue-600); color: #fff; }

.mail-list { border-right: 1px solid var(--border); overflow-y: auto; max-height: 640px; }
.mail-item {
  display: block; width: 100%;
  font: inherit; text-align: left;
  background: none; border: none;
  border-bottom: 1px solid #EEF3FB;
  padding: 13px 16px;
  cursor: pointer;
  transition: background 0.2s ease;
}
.mail-item:hover { background: var(--blue-50); }
.mail-item:focus-visible { outline: 2px solid var(--blue-600); outline-offset: -2px; }
.mail-item.active { background: var(--blue-50); box-shadow: inset 3px 0 0 var(--blue-600); }
.mail-item-top { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin-bottom: 3px; }
.mail-customer { font-size: 0.85rem; font-weight: 700; color: var(--navy); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.mail-time { font-size: 0.68rem; color: var(--slate-light); white-space: nowrap; }
.mail-subject { font-size: 0.78rem; color: var(--slate); display: block; margin-bottom: 7px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.mail-item-tags { display: flex; gap: 6px; align-items: center; flex-wrap: wrap; }

.tag-ai {
  display: inline-flex; align-items: center; gap: 4px;
  font-size: 0.62rem; font-weight: 700;
  color: var(--blue-600); background: var(--blue-50);
  border: 1px solid var(--blue-100);
  border-radius: 999px; padding: 2px 8px;
}
.tag-ai .ic { width: 0.85em; height: 0.85em; }

.status-pill {
  display: inline-flex; align-items: center; gap: 4px;
  font-size: 0.62rem; font-weight: 700;
  border-radius: 999px; padding: 2px 9px;
  border: 1px solid transparent;
}
.status-pill.draft { color: var(--slate); background: #F1F5F9; border-color: var(--border); }
.status-pill.sent { color: var(--blue-900); background: var(--blue-100); }
.status-pill.replied { color: #fff; background: var(--blue-600); }
.status-pill.converted { color: #fff; background: var(--green); }
.status-pill .ic { width: 0.9em; height: 0.9em; }

/* preview */
.mail-preview { padding: 22px 24px; overflow-y: auto; max-height: 640px; background: #fff; }
.preview-head { border-bottom: 1px solid var(--border); padding-bottom: 14px; margin-bottom: 16px; }
.preview-sub { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin-bottom: 8px; }
.preview-subject { font-size: 1.02rem; font-weight: 700; letter-spacing: -0.01em; margin-bottom: 6px; }
.preview-meta { font-size: 0.76rem; color: var(--slate-light); }
.preview-meta strong { color: var(--slate); font-weight: 600; }

.preview-body { font-size: 0.85rem; color: var(--slate); line-height: 1.6; }
.preview-body .mail-greeting { color: var(--navy); margin-bottom: 10px; min-height: 0; }
.preview-offer { display: flex; flex-direction: column; gap: 6px; margin: 10px 0 12px; }
.preview-offer .offer-line { opacity: 1; transform: none; }
.preview-closing { margin-bottom: 16px; }

.preview-reasoning {
  background: var(--blue-50);
  border: 1px solid var(--blue-100);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  margin-bottom: 16px;
}
.preview-reasoning .reasoning-head { margin-bottom: 8px; }
.preview-reasoning ul { list-style: none; display: flex; flex-direction: column; gap: 6px; }
.preview-reasoning li { font-size: 0.76rem; color: var(--slate); padding-left: 16px; position: relative; line-height: 1.45; }
.preview-reasoning li::before {
  content: "";
  position: absolute; left: 2px; top: 7px;
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--blue-600);
}
.preview-reasoning .confidence { border-top-color: var(--blue-100); }

.preview-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.preview-status-note { font-size: 0.78rem; color: var(--slate-light); display: inline-flex; align-items: center; gap: 6px; }
.preview-status-note .ic { color: var(--green); }

/* ---------- Features ---------- */
.features { padding: 88px 0; background: #fff; }
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.feature-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px 24px;
  box-shadow: var(--shadow-soft);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease,
              opacity 0.65s ease var(--d, 0s);
}
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lift); border-color: var(--blue-100); }
.f-icon {
  display: inline-flex; align-items: center; justify-content: center;
  width: 44px; height: 44px; border-radius: 12px;
  background: linear-gradient(135deg, var(--blue-50), var(--blue-100));
  color: var(--blue-600);
  margin-bottom: 16px;
}
.f-icon .ic { width: 21px; height: 21px; }
.feature-card h3 { font-size: 1.04rem; margin-bottom: 8px; }
.feature-card p { font-size: 0.88rem; color: var(--slate); }

/* ---------- Analytics ---------- */
.analytics { padding: 88px 0; background: linear-gradient(180deg, var(--blue-50), #fff 90%); }
.analytics-panel { display: flex; flex-direction: column; gap: 20px; }
.metric-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.metric-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
  padding: 22px 24px;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.metric-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lift); }
.metric-card.highlight { border-color: var(--blue-100); background: linear-gradient(160deg, #fff, var(--blue-50)); }
.metric-num { display: block; font-size: 1.9rem; font-weight: 800; letter-spacing: -0.03em; color: var(--blue-900); font-variant-numeric: tabular-nums; }
.metric-label { font-size: 0.76rem; font-weight: 600; color: var(--slate-light); text-transform: uppercase; letter-spacing: 0.06em; }

.chart-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
  padding: 24px 26px 16px;
}
.chart-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 12px; }
.chart-head h3 { font-size: 1rem; }
.chart { width: 100%; height: auto; display: block; }
.chart-line {
  fill: none;
  stroke: var(--blue-600);
  stroke-width: 3;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-dasharray: 1;
  stroke-dashoffset: 1;
  transition: stroke-dashoffset 1.8s ease 0.2s;
}
.chart-area { fill: url(#chartGrad); opacity: 0; transition: opacity 1.2s ease 0.9s; }
.chart-dot { fill: var(--blue-900); opacity: 0; transition: opacity 0.4s ease 1.9s; }
.chart-dot-halo { fill: rgba(37, 99, 235, 0.2); opacity: 0; transition: opacity 0.4s ease 1.9s; }
.analytics-panel.drawn .chart-line { stroke-dashoffset: 0; }
.analytics-panel.drawn .chart-area { opacity: 1; }
.analytics-panel.drawn .chart-dot, .analytics-panel.drawn .chart-dot-halo { opacity: 1; }
.chart-grid-line { stroke: #EEF3FB; stroke-width: 1; }
.chart-y-label { font-size: 11px; fill: var(--slate-light); font-family: var(--font); }
.chart-x { display: flex; justify-content: space-between; font-size: 0.7rem; color: var(--slate-light); padding: 6px 6px 0 40px; }

/* ---------- Trust ---------- */
.trust { padding: 88px 0; background: #fff; }
.trust-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.trust-card {
  background: var(--blue-50);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 22px;
  transition: transform 0.25s ease, box-shadow 0.25s ease,
              opacity 0.65s ease var(--d, 0s);
}
.trust-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-soft); }
.t-icon {
  display: inline-flex; align-items: center; justify-content: center;
  width: 40px; height: 40px; border-radius: 11px;
  background: #fff; color: var(--blue-600);
  border: 1px solid var(--blue-100);
  margin-bottom: 14px;
}
.t-icon .ic { width: 19px; height: 19px; }
.trust-card h3 { font-size: 0.98rem; margin-bottom: 7px; }
.trust-card p { font-size: 0.85rem; color: var(--slate); }

/* ---------- Pricing ---------- */
.pricing { padding: 88px 0; background: #fff; }
.price-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; align-items: stretch; }
.price-card {
  position: relative;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px 26px;
  box-shadow: var(--shadow-soft);
  display: flex; flex-direction: column;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease,
              opacity 0.65s ease var(--d, 0s);
}
.price-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lift); }
.price-card.featured {
  border-color: var(--blue-600);
  box-shadow: 0 20px 48px rgba(37, 99, 235, 0.18);
}
.featured-badge {
  position: absolute; top: -13px; left: 50%; transform: translateX(-50%);
  font-size: 0.7rem; font-weight: 700; color: #fff;
  background: linear-gradient(120deg, var(--blue-600), var(--blue-900));
  border-radius: 999px; padding: 5px 14px;
  box-shadow: 0 6px 14px rgba(37, 99, 235, 0.35);
  white-space: nowrap;
}
.price-card h3 { font-size: 1.2rem; margin-bottom: 8px; }
.price-sub { font-size: 0.9rem; color: var(--slate); margin-bottom: 22px; }
.price-list { list-style: none; display: flex; flex-direction: column; gap: 10px; margin-bottom: 26px; flex: 1; }
.price-list li { display: flex; gap: 10px; align-items: flex-start; font-size: 0.87rem; color: var(--slate); }
.price-list .ic { color: var(--blue-600); margin-top: 3px; width: 1em; height: 1em; }

/* ---------- FAQ ---------- */
.faq { padding: 88px 0; background: var(--blue-50); }
.faq-container { max-width: 760px; }
.faq-list { display: flex; flex-direction: column; gap: 12px; }
.faq-item {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: box-shadow 0.25s ease, border-color 0.25s ease;
}
.faq-item:hover { border-color: var(--blue-100); }
.faq-item.open { box-shadow: var(--shadow-soft); border-color: var(--blue-100); }
.faq-q {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  width: 100%;
  font: inherit; font-size: 0.98rem; font-weight: 600; color: var(--navy);
  background: none; border: none;
  padding: 18px 22px;
  cursor: pointer;
  text-align: left;
}
.faq-q:focus-visible { outline: 2px solid var(--blue-600); outline-offset: -2px; border-radius: var(--radius-sm); }
.faq-q .chev { color: var(--slate-light); transition: transform 0.3s ease, color 0.2s ease; flex: none; }
.faq-item.open .faq-q .chev { transform: rotate(180deg); color: var(--blue-600); }
.faq-a { display: grid; grid-template-rows: 0fr; transition: grid-template-rows 0.35s ease; }
.faq-item.open .faq-a { grid-template-rows: 1fr; }
.faq-a-inner { min-height: 0; overflow: hidden; }
.faq-a-inner p { padding: 0 22px 20px; font-size: 0.9rem; color: var(--slate); }

/* ---------- CTA band ---------- */
.cta-band {
  padding: 96px 0;
  background:
    radial-gradient(700px 320px at 22% 0%, rgba(59, 130, 246, 0.35), transparent 70%),
    radial-gradient(700px 320px at 82% 110%, rgba(37, 99, 235, 0.4), transparent 70%),
    var(--blue-900);
  color: #fff;
  text-align: center;
}
.cta-inner h2 { font-size: clamp(1.8rem, 3.6vw, 2.6rem); letter-spacing: -0.03em; margin-bottom: 14px; }
.cta-inner p { color: var(--blue-100); font-size: 1.05rem; margin-bottom: 30px; }

/* ---------- Footer ---------- */
.site-footer { background: var(--navy); color: #B6C2D9; }
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.1fr;
  gap: 40px;
  padding: 60px 24px 40px;
}
.footer-brand p { font-size: 0.88rem; margin: 16px 0 20px; max-width: 34ch; }
.logo-light { color: #fff; }
.social-row { display: flex; gap: 10px; }
.social-row a {
  display: inline-flex; align-items: center; justify-content: center;
  width: 38px; height: 38px;
  color: #B6C2D9;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  transition: color 0.2s ease, background 0.2s ease, transform 0.2s ease;
}
.social-row a:hover { color: #fff; background: rgba(37, 99, 235, 0.35); transform: translateY(-2px); }
.social-row .ic { width: 17px; height: 17px; }

.footer-col { display: flex; flex-direction: column; gap: 10px; }
.footer-col h4 { color: #fff; font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 6px; }
.footer-col a { color: #B6C2D9; text-decoration: none; font-size: 0.9rem; transition: color 0.2s ease; }
.footer-col a:hover { color: #fff; }
.footer-fine { font-size: 0.8rem; color: #7C8AA5; }

.footer-bottom {
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  padding: 22px 24px 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 0.78rem; color: #7C8AA5;
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: 1fr; gap: 44px; }
  .hero { padding-top: 128px; }
  .hero-copy { text-align: center; }
  .hero-sub { margin-left: auto; margin-right: auto; }
  .hero-ctas { justify-content: center; }
  .how-grid { grid-template-columns: repeat(2, 1fr); }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .trust-grid { grid-template-columns: repeat(2, 1fr); }
  .metric-row { grid-template-columns: repeat(2, 1fr); }
  .price-grid { grid-template-columns: 1fr; max-width: 460px; margin: 0 auto; }
  .price-card.featured { order: -1; }
  .inbox-body { grid-template-columns: 160px minmax(0, 1fr); }
  .mail-preview { grid-column: 1 / -1; border-top: 1px solid var(--border); max-height: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 860px) {
  .nav-links { display: none; }
  .menu-btn { display: flex; }
  .header-actions .btn { display: none; }
  .site-header.open .header-actions .btn { display: none; }
}

@media (max-width: 720px) {
  .demo-stage { height: 500px; }
  .erp-panel { left: 12px; right: 12px; top: 12px; padding: 12px 12px 8px; }
  .erp-table { font-size: 0.7rem; }
  .col-margin, .erp-table .cell-margin, .col-last, .erp-table .cell-last { display: none; }
  .reasoning-card { right: 12px; left: 12px; width: auto; top: auto; bottom: 12px; }
  .reasoning-lines { min-height: 0; }
  .composer { right: 10px; left: 10px; width: auto; top: 14px; bottom: 118px; padding: 13px 13px; }
  .composer-actions { flex-wrap: wrap; gap: 6px; }
  .composer-actions .btn-xs { padding: 6px 9px; font-size: 0.76rem; }
  .status-bar { left: 12px; right: 12px; bottom: 12px; }
  .stats-mini { gap: 16px; padding: 10px 14px; flex-wrap: wrap; }
  .sample-tag { margin-left: 0; }
  .demo-steps { grid-template-columns: repeat(4, 1fr); }
  .replay-btn { grid-column: 1 / -1; justify-content: center; }
  .how-grid, .feature-grid, .trust-grid, .metric-row { grid-template-columns: 1fr; }
  .inbox-body { grid-template-columns: 1fr; min-height: 0; }
  .inbox-side { flex-direction: row; overflow-x: auto; border-right: none; border-bottom: 1px solid var(--border); padding: 10px 12px; }
  .folder-btn { flex: none; }
  .mail-list { border-right: none; max-height: 320px; }
  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
  section, .how, .product, .features, .analytics, .trust, .pricing, .faq { padding-top: 64px; padding-bottom: 64px; }
  .hero { padding-top: 116px; padding-bottom: 64px; }
  .cta-band { padding: 72px 0; }
}

/* ============================================================
   Reduced motion — show final states statically
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    transition-delay: 0s !important;
  }
  [data-animate] { opacity: 1; transform: none; }
  .replay-btn { display: none; }
  .analytics-panel .chart-line { stroke-dashoffset: 0; }
  .analytics-panel .chart-area, .analytics-panel .chart-dot, .analytics-panel .chart-dot-halo { opacity: 1; }
}