/* ============================================================
   VoiceCore Demo — style.css
   Design System: Warm off-white · Deep navy · Indian English AI
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:ital,opsz,wght@0,14..32,300;0,14..32,400;0,14..32,500;0,14..32,600;0,14..32,700;0,14..32,800;1,14..32,400&display=swap');

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

:root {
  --bg:         #F8F6F2;
  --bg-2:       #EFEDE8;
  --surface:    #FFFFFF;
  --border:     #E4E0D8;
  --ink:        #0D0D0D;
  --ink-2:      #4A4740;
  --ink-3:      #8C8880;
  --navy:       #1A1A2E;
  --accent:     #1A1A2E;
  --live-red:   #E63946;
  --success:    #2D6A4F;
  --success-bg: #EAF4EF;

  /* Vertical accent colours */
  --salon-hue:   #6B4E6B;
  --salon-bg:    #F5EFF5;
  --clinic-hue:  #1A5276;
  --clinic-bg:   #EBF5FB;
  --rest-hue:    #7D4E2D;
  --rest-bg:     #FDF0E6;

  --radius-sm:  8px;
  --radius-md:  16px;
  --radius-lg:  24px;
  --radius-xl:  36px;
  --shadow-sm:  0 2px 8px rgba(0,0,0,.06);
  --shadow-md:  0 8px 32px rgba(0,0,0,.10);
  --shadow-lg:  0 24px 64px rgba(0,0,0,.13);
  --font:       'Inter', -apple-system, sans-serif;
  --ease:       cubic-bezier(.4,0,.2,1);
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* ── TYPOGRAPHY ─────────────────────────────────────────── */
.label {
  font-size: 11px; font-weight: 600;
  letter-spacing: .1em; text-transform: uppercase;
  color: var(--ink-3);
}

h1 {
  font-size: clamp(38px, 6vw, 72px);
  font-weight: 800; line-height: 1.05;
  letter-spacing: -.03em; color: var(--ink);
}

h2 {
  font-size: clamp(26px, 4vw, 42px);
  font-weight: 700; line-height: 1.1;
  letter-spacing: -.025em; color: var(--ink);
}

h3 { font-size: 18px; font-weight: 600; letter-spacing: -.01em; }

p { line-height: 1.7; color: var(--ink-2); }

/* ── NAV ────────────────────────────────────────────────── */
#nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(248,246,242,.88);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow .3s var(--ease);
}
#nav.scrolled { box-shadow: var(--shadow-sm); }

.nav-inner {
  max-width: 1100px; margin: 0 auto;
  padding: 0 24px; height: 60px;
  display: flex; align-items: center; justify-content: space-between;
  gap: 24px;
}

.nav-logo {
  display: flex; align-items: baseline; gap: 6px;
  text-decoration: none;
}
.nav-logo-main { font-size: 17px; font-weight: 700; color: var(--ink); letter-spacing: -.02em; }
.nav-logo-by   { font-size: 12px; color: var(--ink-3); }

.nav-links {
  display: flex; align-items: center; gap: 28px;
  list-style: none;
}
.nav-links a {
  font-size: 14px; font-weight: 500; color: var(--ink-2);
  text-decoration: none; transition: color .2s;
}
.nav-links a:hover { color: var(--ink); }

.btn { display: inline-flex; align-items: center; gap: 6px; cursor: pointer; border: none; font-family: var(--font); transition: all .2s var(--ease); text-decoration: none; white-space: nowrap; }

.btn-primary {
  background: var(--ink); color: #fff;
  padding: 10px 20px; border-radius: 100px;
  font-size: 14px; font-weight: 600; letter-spacing: -.01em;
}
.btn-primary:hover { opacity: .85; transform: translateY(-1px); box-shadow: var(--shadow-md); }

.btn-outline {
  background: transparent; color: var(--ink);
  border: 1.5px solid var(--border);
  padding: 10px 20px; border-radius: 100px;
  font-size: 14px; font-weight: 500;
}
.btn-outline:hover { border-color: var(--ink); background: var(--surface); transform: translateY(-1px); }

/* hamburger */
.nav-hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 6px; background: none; border: none; }
.nav-hamburger span { display: block; width: 22px; height: 2px; background: var(--ink); border-radius: 2px; transition: all .3s var(--ease); }

/* ── HERO ───────────────────────────────────────────────── */
#hero {
  max-width: 1100px; margin: 0 auto;
  padding: 100px 24px 90px;
  display: grid; grid-template-columns: 1fr 1fr;
  align-items: center; gap: 60px;
}

.hero-left { display: flex; flex-direction: column; gap: 28px; }

.hero-tag {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 100px; padding: 6px 14px;
  font-size: 12px; font-weight: 500; color: var(--ink-2);
  width: fit-content;
}
.hero-tag-dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--live-red);
  animation: pulse-dot 1.8s ease-in-out infinite;
}

.hero-sub { font-size: 18px; color: var(--ink-2); max-width: 480px; line-height: 1.65; }

.hero-ctas { display: flex; gap: 12px; flex-wrap: wrap; }

.hero-proof {
  display: flex; align-items: center; gap: 16px;
  flex-wrap: wrap;
}
.hero-proof-item {
  font-size: 12px; font-weight: 500; color: var(--ink-3);
  display: flex; align-items: center; gap: 5px;
}
.hero-proof-dot { width: 3px; height: 3px; border-radius: 50%; background: var(--border); }

/* hero right — waveform visual */
.hero-right {
  position: relative; display: flex; align-items: center; justify-content: center;
}

.hero-visual {
  width: 100%; max-width: 440px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-md);
  position: relative; overflow: hidden;
}

.hero-visual-header {
  display: flex; align-items: center; gap: 10px;
  margin-bottom: 20px;
}
.hero-visual-avatar {
  width: 40px; height: 40px; border-radius: 50%;
  background: linear-gradient(135deg, #6B4E6B, #9B6B9B);
  display: flex; align-items: center; justify-content: center;
  font-size: 16px; font-weight: 700; color: #fff;
  flex-shrink: 0;
}
.hero-visual-info { display: flex; flex-direction: column; gap: 2px; }
.hero-visual-name { font-size: 14px; font-weight: 600; color: var(--ink); }
.hero-visual-biz  { font-size: 12px; color: var(--ink-3); }

.live-badge {
  display: inline-flex; align-items: center; gap: 5px;
  background: #FEE9EA; border-radius: 100px;
  padding: 3px 10px; margin-left: auto;
  font-size: 11px; font-weight: 600; color: var(--live-red);
}
.live-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--live-red);
  animation: pulse-dot 1.4s ease-in-out infinite;
}

/* mini transcript preview */
.mini-transcript { display: flex; flex-direction: column; gap: 10px; }

.mini-bubble {
  border-radius: var(--radius-md);
  padding: 10px 14px;
  font-size: 13px; line-height: 1.5;
  max-width: 85%;
  animation: bubble-in .4s var(--ease) both;
}
.mini-bubble.agent {
  background: var(--bg-2);
  color: var(--ink);
  border-radius: 4px var(--radius-md) var(--radius-md) var(--radius-md);
  align-self: flex-start;
}
.mini-bubble.user {
  background: var(--ink);
  color: #fff;
  border-radius: var(--radius-md) 4px var(--radius-md) var(--radius-md);
  align-self: flex-end;
}

.waveform-bar-row {
  display: flex; align-items: center; justify-content: center;
  gap: 4px; height: 36px; margin-top: 16px;
}
.wbar {
  width: 3px; border-radius: 3px;
  background: var(--navy);
  animation: wave-dance 1.2s ease-in-out infinite;
}
.wbar:nth-child(1)  { height: 8px;  animation-delay: 0s; }
.wbar:nth-child(2)  { height: 18px; animation-delay: .1s; }
.wbar:nth-child(3)  { height: 28px; animation-delay: .2s; }
.wbar:nth-child(4)  { height: 22px; animation-delay: .3s; }
.wbar:nth-child(5)  { height: 32px; animation-delay: .4s; }
.wbar:nth-child(6)  { height: 26px; animation-delay: .5s; }
.wbar:nth-child(7)  { height: 18px; animation-delay: .6s; }
.wbar:nth-child(8)  { height: 12px; animation-delay: .7s; }
.wbar:nth-child(9)  { height: 22px; animation-delay: .8s; }
.wbar:nth-child(10) { height: 30px; animation-delay: .9s; }
.wbar:nth-child(11) { height: 20px; animation-delay: 1s; }
.wbar:nth-child(12) { height: 10px; animation-delay: 1.1s; }

/* ── DIVIDER ────────────────────────────────────────────── */
.section-divider { height: 1px; background: var(--border); max-width: 1100px; margin: 0 auto; }

/* ── INDUSTRY DEMO ──────────────────────────────────────── */
#demo {
  max-width: 1100px; margin: 0 auto;
  padding: 90px 24px;
}

.section-header { margin-bottom: 48px; display: flex; flex-direction: column; gap: 14px; }
.section-header p { font-size: 17px; max-width: 520px; }

/* tab strip */
.industry-tabs {
  display: flex; gap: 10px; flex-wrap: wrap;
  margin-bottom: 36px;
}

.tab-btn {
  display: flex; align-items: center; gap: 8px;
  padding: 10px 20px; border-radius: 100px;
  border: 1.5px solid var(--border);
  background: var(--surface); cursor: pointer;
  font-family: var(--font); font-size: 14px; font-weight: 500;
  color: var(--ink-2); transition: all .25s var(--ease);
}
.tab-btn:hover { border-color: var(--ink); color: var(--ink); transform: translateY(-1px); }
.tab-btn.active {
  background: var(--ink); color: #fff; border-color: var(--ink);
  box-shadow: var(--shadow-sm);
}
.tab-icon { font-size: 17px; }

/* demo panel */
.demo-panel { display: none; animation: fade-up .35s var(--ease) both; }
.demo-panel.active { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }

/* agent card */
.agent-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  display: flex; flex-direction: column; gap: 20px;
  box-shadow: var(--shadow-sm);
}

.agent-header { display: flex; align-items: center; gap: 16px; }

.agent-avatar {
  width: 72px; height: 72px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 26px; font-weight: 800; color: #fff;
  flex-shrink: 0; position: relative;
  box-shadow: 0 4px 16px rgba(0,0,0,.15);
}
.agent-avatar.speaking::after {
  content: '';
  position: absolute; inset: -5px;
  border-radius: 50%;
  border: 2px solid currentColor;
  opacity: .4;
  animation: speak-ring 1.2s ease-in-out infinite;
}

.agent-info { display: flex; flex-direction: column; gap: 3px; }
.agent-name { font-size: 20px; font-weight: 700; color: var(--ink); }
.agent-biz  { font-size: 13px; color: var(--ink-3); }
.agent-handles { font-size: 13px; color: var(--ink-2); line-height: 1.6; }

.agent-features { display: flex; flex-wrap: wrap; gap: 8px; }
.feature-chip {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 5px 12px; border-radius: 100px;
  border: 1px solid var(--border); background: var(--bg);
  font-size: 12px; font-weight: 500; color: var(--ink-2);
}

/* call button */
.call-btn {
  width: 100%; padding: 16px;
  border-radius: var(--radius-md); border: none;
  font-family: var(--font); font-size: 15px; font-weight: 600;
  cursor: pointer; transition: all .25s var(--ease);
  display: flex; align-items: center; justify-content: center; gap: 10px;
  position: relative; overflow: hidden;
}
.call-btn::before {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(circle at center, rgba(255,255,255,.2) 0%, transparent 70%);
  opacity: 0; transition: opacity .3s;
}
.call-btn:hover::before { opacity: 1; }
.call-btn:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.call-btn:active { transform: translateY(0); }

.call-btn.idle   { background: var(--ink); color: #fff; }
.call-btn.active { background: var(--live-red); color: #fff; }
.call-btn.ended  { background: var(--success); color: #fff; }

.call-btn .btn-icon { font-size: 18px; transition: transform .3s var(--ease); }
.call-btn:hover .btn-icon { transform: scale(1.15); }

/* transcript widget */
.transcript-widget {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  display: flex; flex-direction: column;
  overflow: hidden; box-shadow: var(--shadow-sm);
  min-height: 420px;
}

.tw-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
  background: var(--bg);
}
.tw-title { font-size: 13px; font-weight: 600; color: var(--ink); }
.tw-status { display: flex; align-items: center; gap: 6px; font-size: 12px; font-weight: 500; color: var(--ink-3); }
.tw-status-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--border); transition: background .3s; }
.tw-status-dot.live { background: var(--live-red); animation: pulse-dot 1.4s ease-in-out infinite; }

.tw-body {
  flex: 1; overflow-y: auto; padding: 20px;
  display: flex; flex-direction: column; gap: 14px;
  scroll-behavior: smooth;
}
.tw-body::-webkit-scrollbar { width: 4px; }
.tw-body::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }

.tw-empty {
  flex: 1; display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 10px;
  color: var(--ink-3); text-align: center; padding: 32px;
}
.tw-empty-icon { font-size: 32px; opacity: .4; }
.tw-empty p { font-size: 13px; }

.tw-bubble {
  display: flex; flex-direction: column; gap: 3px;
  animation: bubble-in .3s var(--ease) both;
}
.tw-bubble.agent { align-items: flex-start; }
.tw-bubble.user  { align-items: flex-end; }

.tw-speaker { font-size: 11px; font-weight: 600; letter-spacing: .04em; color: var(--ink-3); padding: 0 4px; }

.tw-text {
  padding: 10px 14px; border-radius: 14px;
  font-size: 14px; line-height: 1.55; max-width: 85%;
}
.tw-bubble.agent .tw-text {
  background: var(--bg-2); color: var(--ink);
  border-radius: 4px 14px 14px 14px;
}
.tw-bubble.user .tw-text {
  background: var(--ink); color: #fff;
  border-radius: 14px 4px 14px 14px;
}

.tw-typing {
  display: flex; align-items: center; gap: 5px;
  padding: 10px 14px; background: var(--bg-2);
  border-radius: 4px 14px 14px 14px;
  width: fit-content;
}
.tw-typing span {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--ink-3); animation: typing-dot 1.2s ease-in-out infinite;
}
.tw-typing span:nth-child(2) { animation-delay: .2s; }
.tw-typing span:nth-child(3) { animation-delay: .4s; }

.tw-confirmed {
  margin-top: 8px;
  background: var(--success-bg);
  border: 1px solid #A8D5BB;
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  display: flex; align-items: center; gap: 10px;
  font-size: 13px; font-weight: 600; color: var(--success);
  animation: fade-up .4s var(--ease) both;
}

/* vertical colour theming */
[data-vertical="salon"] .agent-avatar  { background: linear-gradient(135deg, #6B4E6B, #9B6B9B); }
[data-vertical="salon"] .call-btn.idle { background: #6B4E6B; }
[data-vertical="salon"] .tw-bubble.agent .tw-text { background: #F5EFF5; }

[data-vertical="clinic"] .agent-avatar  { background: linear-gradient(135deg, #1A5276, #2980B9); }
[data-vertical="clinic"] .call-btn.idle { background: #1A5276; }
[data-vertical="clinic"] .tw-bubble.agent .tw-text { background: #EBF5FB; }

[data-vertical="restaurant"] .agent-avatar  { background: linear-gradient(135deg, #7D4E2D, #C0714A); }
[data-vertical="restaurant"] .call-btn.idle { background: #7D4E2D; }
[data-vertical="restaurant"] .tw-bubble.agent .tw-text { background: #FDF0E6; }

/* ── HOW IT WORKS ───────────────────────────────────────── */
#how {
  background: var(--bg-2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 90px 24px;
}
.how-inner { max-width: 1100px; margin: 0 auto; }
.how-inner .section-header { margin-bottom: 56px; }

.how-steps {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 32px; position: relative;
}
.how-steps::before {
  content: '';
  position: absolute; top: 28px; left: calc(16.6% + 16px); right: calc(16.6% + 16px);
  height: 1px; background: var(--border); z-index: 0;
}

.how-step { display: flex; flex-direction: column; gap: 16px; position: relative; z-index: 1; }
.how-step-num {
  width: 56px; height: 56px; border-radius: 50%;
  background: var(--surface); border: 1.5px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  font-size: 20px; font-weight: 700; color: var(--ink);
  box-shadow: var(--shadow-sm);
}
.how-step h3 { font-size: 17px; }
.how-step p  { font-size: 14px; color: var(--ink-2); }

.call-flow {
  margin-top: 56px;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 28px 36px;
  display: flex; align-items: center; justify-content: center;
  gap: 0; flex-wrap: wrap;
  box-shadow: var(--shadow-sm);
}

.flow-step {
  display: flex; align-items: center; gap: 6px;
  font-size: 14px; font-weight: 500; color: var(--ink-2);
  padding: 8px 0;
}
.flow-step .flow-icon { font-size: 18px; }
.flow-arrow { color: var(--border); font-size: 20px; margin: 0 12px; }
.flow-step.highlight { color: var(--success); font-weight: 600; }

/* ── PRICING ────────────────────────────────────────────── */
#pricing {
  max-width: 1100px; margin: 0 auto;
  padding: 90px 24px;
}

.pricing-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 20px; margin-top: 48px;
}

.price-card {
  background: var(--surface); border: 1.5px solid var(--border);
  border-radius: var(--radius-lg); padding: 32px;
  display: flex; flex-direction: column; gap: 24px;
  transition: all .25s var(--ease); position: relative;
}
.price-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--ink); }
.price-card.featured {
  background: var(--navy); border-color: var(--navy);
  color: #fff;
}
.price-card.featured p,
.price-card.featured .price-feature { color: rgba(255,255,255,.7); }
.price-card.featured .price-name { color: #fff; }
.price-card.featured .price-amount { color: #fff; }

.popular-badge {
  position: absolute; top: -12px; left: 50%; transform: translateX(-50%);
  background: var(--live-red); color: #fff;
  font-size: 11px; font-weight: 700; letter-spacing: .05em;
  padding: 4px 14px; border-radius: 100px; white-space: nowrap;
}

.price-name { font-size: 15px; font-weight: 600; }
.price-row  { display: flex; align-items: baseline; gap: 4px; }
.price-amount { font-size: 36px; font-weight: 800; letter-spacing: -.03em; }
.price-period { font-size: 14px; color: var(--ink-3); }
.price-card.featured .price-period { color: rgba(255,255,255,.5); }

.price-features { display: flex; flex-direction: column; gap: 10px; }
.price-feature {
  display: flex; align-items: center; gap: 9px;
  font-size: 14px; color: var(--ink-2);
}
.price-feature-icon { font-size: 14px; flex-shrink: 0; }

.price-cta { margin-top: auto; }
.price-cta .btn-primary { width: 100%; justify-content: center; padding: 13px; }
.price-card.featured .btn-primary { background: #fff; color: var(--navy); }

.price-overage {
  text-align: center; margin-top: 20px;
  font-size: 13px; color: var(--ink-3);
}

/* ── CTA SECTION ────────────────────────────────────────── */
#cta {
  background: var(--navy);
  padding: 90px 24px;
}
.cta-inner {
  max-width: 560px; margin: 0 auto; text-align: center;
  display: flex; flex-direction: column; align-items: center; gap: 28px;
}
.cta-inner h2 { color: #fff; }
.cta-inner p  { color: rgba(255,255,255,.65); font-size: 17px; }

.cta-form {
  width: 100%; display: flex; flex-direction: column; gap: 12px;
}

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }

.form-field {
  display: flex; flex-direction: column; gap: 6px;
}
.form-field label { font-size: 12px; font-weight: 500; color: rgba(255,255,255,.55); letter-spacing: .04em; }
.form-field input,
.form-field select {
  width: 100%; padding: 12px 16px;
  background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.2);
  border-radius: var(--radius-sm); color: #fff;
  font-family: var(--font); font-size: 14px;
  transition: border-color .2s, background .2s; outline: none;
}
.form-field input::placeholder { color: rgba(255,255,255,.35); }
.form-field input:focus,
.form-field select:focus { border-color: rgba(255,255,255,.6); background: rgba(255,255,255,.15); }
.form-field select option { background: var(--navy); color: #fff; }

.whatsapp-btn {
  width: 100%; padding: 15px; border-radius: var(--radius-sm);
  background: #25D366; color: #fff; border: none;
  font-family: var(--font); font-size: 15px; font-weight: 600;
  cursor: pointer; display: flex; align-items: center; justify-content: center; gap: 10px;
  transition: all .2s var(--ease);
}
.whatsapp-btn:hover { background: #1ebe5d; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(37,211,102,.35); }

.cta-alt { font-size: 13px; color: rgba(255,255,255,.4); }
.cta-alt a { color: rgba(255,255,255,.6); }
.cta-alt a:hover { color: #fff; }

.cta-contacts {
  display: flex; align-items: center; gap: 16px;
  flex-wrap: wrap; justify-content: center;
}
.cta-contact-link {
  display: inline-flex; align-items: center; gap: 7px;
  font-size: 14px; font-weight: 500; color: rgba(255,255,255,.7);
  text-decoration: none; transition: color .2s;
}
.cta-contact-link:hover { color: #fff; }
.cta-contact-sep { color: rgba(255,255,255,.25); font-size: 18px; }

/* ── FOOTER ─────────────────────────────────────────────── */
footer {
  border-top: 1px solid var(--border);
  padding: 28px 24px; background: var(--bg);
}
.footer-inner {
  max-width: 1100px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 12px;
}
footer p { font-size: 13px; color: var(--ink-3); }
.footer-links { display: flex; gap: 24px; }
.footer-links a { font-size: 13px; color: var(--ink-3); text-decoration: none; transition: color .2s; }
.footer-links a:hover { color: var(--ink); }

/* ── SCROLL ANIMATION ───────────────────────────────────── */
.reveal {
  opacity: 0; transform: translateY(24px);
  transition: opacity .6s var(--ease), transform .6s var(--ease);
}
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ── KEYFRAMES ──────────────────────────────────────────── */
@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: .5; transform: scale(.8); }
}

@keyframes wave-dance {
  0%, 100% { transform: scaleY(1); }
  50%       { transform: scaleY(.4); }
}

@keyframes speak-ring {
  0%   { transform: scale(1); opacity: .4; }
  100% { transform: scale(1.35); opacity: 0; }
}

@keyframes bubble-in {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fade-up {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes typing-dot {
  0%, 80%, 100% { transform: scale(.8); opacity: .4; }
  40%           { transform: scale(1.1); opacity: 1; }
}

/* ── RESPONSIVE ─────────────────────────────────────────── */
@media (max-width: 900px) {
  #hero { grid-template-columns: 1fr; gap: 48px; padding: 72px 24px 60px; }
  .hero-right { display: none; }
  .demo-panel.active { grid-template-columns: 1fr; }
  .how-steps { grid-template-columns: 1fr; }
  .how-steps::before { display: none; }
  .pricing-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .nav-links { display: none; }
  .nav-hamburger { display: flex; }
  .nav-links.open {
    display: flex; flex-direction: column;
    position: fixed; inset: 60px 0 0 0;
    background: var(--bg); z-index: 99;
    align-items: center; justify-content: center; gap: 36px;
  }
  .nav-links.open a { font-size: 22px; }
  h1 { font-size: 36px; }
  .industry-tabs { gap: 8px; }
  .tab-btn { padding: 9px 14px; font-size: 13px; }
  .call-flow { gap: 0; justify-content: flex-start; overflow-x: auto; }
}