:root {
  --ink: #18181a;
  --body: #626268;
  --soft: #f5f5f6;
  --line: #dedee2;
  --accent: #f06436;
  --accent-deep: #d94b20;
  --green: #2ca73c;
  --radius: 26px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  overflow-x: hidden;
  background: #fff;
  color: var(--ink);
  font-family: "Inter", sans-serif;
  font-size: 17px;
  line-height: 1.55;
  letter-spacing: -.018em;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
.site-header {
  position: fixed;
  z-index: 20;
  inset: 0 0 auto;
  height: 84px;
  padding-top: 0;
  pointer-events: none;
  transition: padding .3s ease;
}
.nav-shell, .footer-shell {
  width: min(1160px, calc(100% - 48px));
  height: 100%;
  margin: auto;
  display: flex;
  align-items: center;
}
.site-header .nav-shell {
  height: 68px;
  padding: 0;
  pointer-events: auto;
  border: 1px solid transparent;
  border-radius: 999px;
  transition: width .3s ease, height .3s ease, padding .3s ease, background .3s ease, border-color .3s ease, box-shadow .3s ease, backdrop-filter .3s ease;
}
.site-header.is-scrolled { padding-top: 12px; }
.site-header.is-scrolled .nav-shell {
  width: min(1120px, calc(100% - 32px));
  height: 60px;
  padding: 0 22px;
  border-color: rgba(24,24,26,.09);
  background: rgba(255,255,255,.92);
  box-shadow: 0 8px 26px rgba(24,24,26,.11);
  backdrop-filter: blur(16px);
}
.brand { display: inline-flex; align-items: center; gap: 9px; font-size: 19px; font-weight: 650; letter-spacing: -.045em; }
.brand svg { width: 26px; height: 26px; color: var(--accent); }
nav { display: flex; gap: 30px; margin-left: auto; margin-right: 34px; color: #4c4c50; font-size: 13px; }
nav a { transition: color .2s; }
nav a:hover { color: var(--accent); }
.nav-cta {
  min-height: 36px;
  padding: 0 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid #18181a;
  border-radius: 999px;
  background: #fff;
  font-size: 13px;
  font-weight: 550;
  line-height: 1;
}
.nav-cta:hover { background: var(--ink); color: #fff; }

.hero { padding: 150px 24px 70px; text-align: center; background: #fff; }
.hero-copy { width: min(940px, 100%); margin: auto; }
.hero h1 {
  margin: 0;
  font-size: clamp(60px, 7.8vw, 104px);
  line-height: .98;
  font-family: "Playfair Display", serif;
  letter-spacing: -.055em;
  font-weight: 600;
}
.hero h1 span, .section-copy h2 span, .final-cta h2 span { color: var(--accent); }
.hero-line { margin: 28px 0 0; font-size: clamp(24px, 2.8vw, 36px); line-height: 1.15; letter-spacing: -.045em; font-weight: 600; }
.hero-detail { max-width: 650px; margin: 24px auto 30px; color: var(--body); font-size: 18px; }
.primary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 13px;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 30px;
  background: var(--ink);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  transition: transform .2s, background .2s;
}
.primary-button:hover { transform: translateY(-1px); background: #323235; }
.hero-carousel {
  width: min(1380px, calc(100vw - 24px));
  margin: 72px auto 0;
  user-select: none;
  outline: none;
}
.carousel-stage {
  position: relative;
  height: clamp(405px, 44vw, 620px);
  overflow: hidden;
  perspective: 1800px;
  touch-action: pan-y;
}
.carousel-track { position: absolute; inset: 0; }
.carousel-card {
  position: absolute;
  top: 50%;
  left: 50%;
  width: min(66vw, 880px);
  margin: 0;
  opacity: .68;
  cursor: pointer;
  transform-style: preserve-3d;
  transition: transform 1.15s cubic-bezier(.22,.75,.25,1), opacity .9s ease, filter .9s ease;
  filter: saturate(.8);
  will-change: transform;
}
.carousel-card.is-active {
  z-index: 3;
  opacity: 1;
  cursor: grab;
  transform: translate(-50%, -50%) translateX(0) scale(1);
  filter: none;
}
.carousel-card.is-active:active { cursor: grabbing; }
.carousel-card.is-prev {
  z-index: 2;
  transform: translate(-50%, -50%) translateX(-68%) scale(.76) rotateY(10deg);
}
.carousel-card.is-next {
  z-index: 2;
  transform: translate(-50%, -50%) translateX(68%) scale(.76) rotateY(-10deg);
}
.carousel-card:hover { opacity: .9; filter: none; }
.carousel-card.is-active:hover { opacity: 1; }
.product-window {
  padding: 10px;
  overflow: hidden;
  border: 1px solid rgba(24,24,26,.12);
  border-radius: 27px;
  background: rgba(255,255,255,.94);
  box-shadow: 0 42px 110px rgba(23,25,31,.18), 0 12px 34px rgba(23,25,31,.1), inset 0 1px 0 rgba(255,255,255,.9);
  backdrop-filter: blur(18px);
}
.carousel-card.is-active .product-window { box-shadow: 0 48px 120px rgba(23,25,31,.2), 0 14px 38px rgba(23,25,31,.11), 0 0 0 1px rgba(240,100,54,.08); }
.carousel-chrome {
  height: 38px;
  padding: 0 11px 0 8px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  color: #7a7a80;
  font-size: 11px;
}
.carousel-chrome > span { display: flex; gap: 5px; }
.carousel-chrome i { width: 7px; height: 7px; border-radius: 50%; background: #d9d9dd; }
.carousel-chrome i:first-child { background: var(--accent); opacity: .78; }
.carousel-chrome b { color: #3d3d42; font-weight: 500; }
.carousel-chrome em { justify-self: end; color: #aaaab0; font: 400 9px/1 "JetBrains Mono", monospace; font-style: normal; text-transform: uppercase; letter-spacing: .08em; }
.carousel-screen {
  height: clamp(315px, 35vw, 480px);
  display: grid;
  place-items: center;
  overflow: hidden;
  border: 1px solid rgba(22,22,24,.09);
  border-radius: 17px;
  background: #fff;
  box-shadow: inset 0 0 0 1px rgba(255,255,255,.5);
}
.carousel-screen img { width: 100%; height: 100%; object-fit: contain; pointer-events: none; }
.carousel-arrow {
  position: absolute;
  z-index: 6;
  top: 50%;
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(0,0,0,.09);
  border-radius: 50%;
  background: rgba(255,255,255,.9);
  color: var(--ink);
  box-shadow: 0 8px 26px rgba(0,0,0,.1);
  font: inherit;
  font-size: 18px;
  cursor: pointer;
  pointer-events: auto;
  transform: translateY(-50%);
  backdrop-filter: blur(12px);
  transition: transform .2s ease, background .2s ease;
}
.carousel-arrow:hover { background: #fff; transform: translateY(-50%) scale(1.06); }
.carousel-prev { left: max(18px, calc(50% - 490px)); }
.carousel-next { right: max(18px, calc(50% - 490px)); }
.carousel-controls { height: 18px; display: flex; justify-content: center; align-items: center; gap: 8px; }
.carousel-controls button {
  width: 7px;
  height: 7px;
  padding: 0;
  border: 0;
  border-radius: 999px;
  background: #c9c9ce;
  cursor: pointer;
  transition: width .3s ease, background .3s ease;
}
.carousel-controls button.is-active { width: 24px; background: var(--accent); }
.hero-product { width: min(1060px, 100%); margin: 92px auto 0; }
.product-frame, .product-shot {
  overflow: hidden;
  border: 1px solid rgba(0,0,0,.09);
  border-radius: 20px;
  background: #fff;
  box-shadow: 0 32px 80px rgba(0,0,0,.12), 0 3px 12px rgba(0,0,0,.05);
}
.window-bar { height: 38px; display: flex; align-items: center; gap: 6px; padding: 0 14px; border-bottom: 1px solid #ececef; background: #fafafa; }
.window-bar i { width: 8px; height: 8px; border-radius: 50%; background: #d7d7da; }
.window-bar span { margin-left: 7px; color: #8a8a90; font-size: 10px; }
.hero-crop { height: 350px; overflow: hidden; }
.hero-crop img { width: 100%; height: auto; }
.byline { color: #8a8a90; margin: 21px 0 0; font-size: 12px; }

.scene { padding: 200px 24px; background: var(--soft); text-align: center; }
.narrow { width: min(780px, 100%); margin: auto; }
.scene h2, .final-cta h2 {
  margin: 0;
  font-size: clamp(52px, 6.2vw, 82px);
  line-height: 1.02;
  font-family: "Playfair Display", serif;
  letter-spacing: -.05em;
  font-weight: 600;
}
.scene .lead { margin: 38px 0 22px; color: var(--ink); font-size: 28px; font-weight: 600; letter-spacing: -.04em; }
.scene p:not(.lead):not(.answer) { max-width: 590px; margin: auto; color: var(--body); font-size: 19px; }
.scene .answer { margin: 36px 0 0; color: var(--accent); font-size: 19px; font-weight: 600; }

.section { padding: 180px 24px; }
.section-copy { width: min(900px, 100%); margin: 0 auto 84px; text-align: center; }
.overline { margin: 0 0 22px; color: var(--accent); font: 500 12px/1.4 "JetBrains Mono", monospace; letter-spacing: .08em; text-transform: uppercase; }
.section-copy h2 {
  margin: 0;
  font-size: clamp(52px, 6.5vw, 86px);
  line-height: 1;
  font-family: "Playfair Display", serif;
  letter-spacing: -.052em;
  font-weight: 600;
}
.section-copy > p:last-child { max-width: 610px; margin: 30px auto 0; color: var(--body); font-size: 19px; }

.communication { width: min(1210px, 100%); margin: auto; }
.agent-grid { width: min(1120px, 100%); margin: auto; display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.agent-card {
  min-height: 650px;
  padding: 54px 52px 42px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid rgba(0,0,0,.065);
  border-radius: 30px;
  background: #f5f5f7;
}
.agent-label { margin: 0 0 20px; color: var(--accent); font-size: 14px; font-weight: 650; }
.agent-copy h3 { max-width: 430px; margin: 0 0 22px; font-family: "Playfair Display", serif; font-size: clamp(34px, 3.6vw, 52px); line-height: 1.02; letter-spacing: -.045em; font-weight: 600; }
.agent-copy > p:last-child { max-width: 420px; margin: 0; color: var(--body); font-size: 17px; }
.agent-demo { margin-top: auto; padding: 30px; border: 1px solid rgba(0,0,0,.065); border-radius: 20px; background: rgba(255,255,255,.94); box-shadow: 0 20px 48px rgba(0,0,0,.08); }
.call-demo strong { display: block; margin-top: 18px; font-size: 24px; line-height: 1.15; letter-spacing: -.035em; }
.call-demo small { color: #8a8a90; font-size: 12px; }
.email-demo { padding: 10px 24px; }
.email-row { padding: 20px 0; display: grid; grid-template-columns: 38px 1fr auto; align-items: center; gap: 12px; border-bottom: 1px solid #ececef; }
.email-row:last-child { border-bottom: 0; }
.mail-icon { width: 34px; height: 34px; display: grid; place-items: center; border-radius: 50%; background: #fff0e9; color: var(--accent-deep); font-size: 15px; font-weight: 700; }
.email-row strong { display: block; font-size: 14px; }
.email-row small { display: block; margin-top: 2px; color: #85858b; font-size: 11px; }
.email-row b { color: var(--green); font-size: 11px; font-weight: 650; }
.timeline-crop { position: absolute; inset: 56px 55px auto 300px; height: 250px; overflow: hidden; border: 1px solid rgba(0,0,0,.08); border-radius: 16px; background: #fff; box-shadow: 0 24px 55px rgba(0,0,0,.1); }
.timeline-crop img { width: 100%; max-width: none; transform: translateY(-1px); }
.call-card {
  position: absolute;
  z-index: 3;
  left: 55px;
  bottom: 45px;
  width: 375px;
  padding: 30px;
  border-radius: 20px;
  background: #fff;
  box-shadow: 0 25px 60px rgba(0,0,0,.14);
}
.call-state { color: var(--green); font-size: 13px; font-weight: 600; }
.call-state span { display: inline-block; width: 7px; height: 7px; margin-right: 8px; border-radius: 50%; background: var(--green); }
.call-card h3 { margin: 18px 0 6px; font-size: 27px; line-height: 1.15; letter-spacing: -.04em; }
.call-card p { margin: 0; color: var(--body); font-size: 13px; }
.wave { display: flex; align-items: center; gap: 4px; height: 50px; margin-top: 17px; }
.wave i { width: 3px; height: 18px; border-radius: 4px; background: var(--accent); animation: wave 1.3s ease-in-out infinite; }
.wave i:nth-child(2), .wave i:nth-child(8) { height: 27px; animation-delay: -.2s; }
.wave i:nth-child(3), .wave i:nth-child(7) { height: 38px; animation-delay: -.4s; }
.wave i:nth-child(4), .wave i:nth-child(6) { height: 22px; animation-delay: -.6s; }
.wave i:nth-child(5) { height: 42px; animation-delay: -.8s; }
@keyframes wave { 50% { transform: scaleY(.45); opacity: .55; } }
.call-links { color: var(--accent); font-size: 12px; font-weight: 600; }
.call-links span { color: #b0b0b5; padding: 0 5px; }
.feature-pair { width: min(1080px, 100%); margin: 95px auto 0; display: grid; grid-template-columns: 1fr 1fr; gap: 100px; }
.feature-pair article { display: grid; grid-template-columns: 50px 1fr; column-gap: 18px; }
.number { grid-row: 1/3; padding-top: 4px; color: var(--accent); font-size: 13px; font-weight: 650; }
.feature-pair h3 { margin: 0 0 14px; font-size: 27px; line-height: 1.2; letter-spacing: -.04em; }
.feature-pair p { margin: 0; color: var(--body); }

.evaluation { background: var(--soft); }
.large-shot { width: min(1140px, 100%); margin: auto; }
.large-shot > img { width: 100%; }
.evaluation-detail { width: min(1140px, 100%); margin: 155px auto 0; display: grid; grid-template-columns: .58fr 1.42fr; align-items: center; gap: 56px; }
.detail-copy h3 { margin: 0 0 24px; font-family: "Playfair Display", serif; font-size: clamp(36px, 4.2vw, 57px); line-height: 1.05; letter-spacing: -.045em; font-weight: 600; }
.detail-copy > p:last-child { margin: 0; color: var(--body); }
.tbe-shot { height: 320px; }
.tbe-shot img { width: 125%; max-width: none; height: auto; }
.award { width: min(1140px, 100%); margin: 145px auto 0; padding-top: 58px; display: flex; align-items: end; justify-content: space-between; border-top: 1px solid #cfcfd3; }
.award h3 { margin: 0; font-family: "Playfair Display", serif; font-size: clamp(36px, 4.4vw, 59px); line-height: 1.07; letter-spacing: -.045em; font-weight: 600; }
.award p { margin: 0; color: var(--body); font-size: 18px; text-align: right; }
.award strong { color: var(--ink); }

.trace-shot { width: min(1140px, 100%); margin: auto; }
.trace-shot img { width: 100%; }
.evidence-line { width: min(920px, 100%); margin: 75px auto 0; display: grid; grid-template-columns: auto 1fr auto 1fr auto 1fr auto; align-items: center; gap: 15px; color: #85858b; font-size: 14px; font-weight: 550; }
.evidence-line i { height: 1px; background: #cfcfd3; }
.evidence-line strong { color: var(--accent); }
.security { width: min(1000px, 100%); margin: 180px auto 0; display: grid; grid-template-columns: .7fr 1.3fr; gap: 100px; }
.security-intro h3 { margin: 0 0 16px; font-family: "Playfair Display", serif; font-size: 48px; line-height: 1.05; letter-spacing: -.045em; font-weight: 600; }
.security-intro p { margin: 0; color: var(--body); }
.security-points { border-top: 1px solid var(--line); }
.security-points p { margin: 0; padding: 20px 0; display: grid; grid-template-columns: 1fr 1fr; gap: 20px; border-bottom: 1px solid var(--line); }
.security-points strong { font-size: 15px; }
.security-points span { color: var(--body); font-size: 14px; }
.erp { margin: 150px 0 0; text-align: center; color: var(--body); font-size: 25px; letter-spacing: -.035em; }
.erp strong { color: var(--ink); }

.faq { background: #fff; }
.faq .section-copy { margin-bottom: 58px; }
.faq-list { width: min(820px, 100%); margin: auto; border-top: 1px solid var(--line); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary {
  position: relative;
  padding: 25px 48px 25px 0;
  list-style: none;
  cursor: pointer;
  font-size: 20px;
  font-weight: 600;
  letter-spacing: -.03em;
}
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after {
  content: "+";
  position: absolute;
  top: 50%;
  right: 4px;
  color: var(--accent);
  font-size: 25px;
  font-weight: 400;
  transform: translateY(-50%);
}
.faq-list details[open] summary::after { content: "−"; }
.faq-list details p { max-width: 700px; margin: -4px 48px 26px 0; color: var(--body); }

.final-cta { padding: 190px 24px; background: var(--soft); text-align: center; }
.final-cta p { max-width: 590px; margin: 32px auto 30px; color: var(--body); font-size: 19px; }
.cta-actions { display: flex; flex-direction: column; align-items: center; gap: 16px; }
.whatsapp-button {
  min-height: 48px;
  padding: 0 19px 0 14px;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  border-radius: 9px;
  background: #25d366;
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: -.01em;
  box-shadow: 0 7px 18px rgba(37,211,102,.2);
  transition: transform .2s ease, background .2s ease, box-shadow .2s ease;
}
.whatsapp-button svg { width: 25px; height: 25px; flex: 0 0 auto; }
.whatsapp-button:hover { transform: translateY(-1px); background: #20bd5a; box-shadow: 0 9px 22px rgba(37,211,102,.28); }
footer { height: 120px; background: #fff; }
.footer-shell { gap: 34px; color: #85858b; font-size: 12px; }
.footer-shell .brand { color: var(--ink); font-size: 18px; }
.footer-contact { margin-left: auto; display: flex; align-items: center; gap: 22px; color: #4c4c50; }
.footer-contact a:hover { color: var(--accent-deep); }

.reveal { opacity: 0; transform: translateY(22px); transition: opacity .75s ease, transform .75s ease; }
.reveal.visible { opacity: 1; transform: none; }

@media (max-width: 900px) {
  nav { display: none; }
  .hero { padding-top: 125px; }
  .hero-crop { height: 340px; }
  .scene { padding: 140px 24px; }
  .section { padding: 135px 24px; }
  .agent-grid { grid-template-columns: 1fr; }
  .agent-card { min-height: 570px; }
  .timeline-crop { inset: 40px 30px auto 110px; height: 265px; }
  .timeline-crop img { height: 100%; width: auto; max-width: none; }
  .call-card { left: 30px; bottom: 35px; }
  .feature-pair { gap: 45px; }
  .evaluation-detail { grid-template-columns: 1fr; gap: 50px; }
  .tbe-shot { height: 360px; }
  .tbe-shot img { width: 100%; height: auto; transform: none; }
  .security { grid-template-columns: 1fr; gap: 50px; }
}

@media (max-width: 620px) {
  body { font-size: 16px; }
  .nav-shell, .footer-shell { width: calc(100% - 32px); }
  .site-header.is-scrolled { padding-top: 8px; }
  .site-header.is-scrolled .nav-shell { width: calc(100% - 16px); height: 56px; padding: 0 12px; }
  .site-header .brand { flex: 0 0 auto; }
  .site-header .brand svg { width: 24px; height: 24px; }
  .nav-cta { min-height: 34px; margin-left: auto; padding: 0 13px; flex: 0 0 auto; font-size: 12px; white-space: nowrap; }
  .hero { padding: 112px 16px 55px; }
  .hero h1 { font-size: 51px; }
  .hero-line { font-size: 23px; }
  .hero-detail { font-size: 16px; }
  .hero-product { margin-top: 65px; border-radius: 13px; }
  .hero-carousel { width: calc(100vw - 8px); margin-top: 50px; }
  .carousel-stage { height: 350px; }
  .carousel-card { width: 88vw; }
  .product-window { padding: 6px; border-radius: 19px; }
  .carousel-chrome { height: 31px; }
  .carousel-chrome em { display: none; }
  .carousel-screen { height: 285px; border-radius: 13px; }
  .carousel-card.is-prev { transform: translate(-50%, -50%) translateX(-79%) scale(.72) rotateY(8deg); }
  .carousel-card.is-next { transform: translate(-50%, -50%) translateX(79%) scale(.72) rotateY(-8deg); }
  .carousel-arrow { width: 38px; height: 38px; font-size: 16px; }
  .carousel-prev { left: 13px; }
  .carousel-next { right: 13px; }
  .window-bar { height: 31px; }
  .hero-crop { height: 220px; }
  .hero-crop img { height: 100%; width: auto; max-width: none; }
  .scene { padding: 110px 20px; }
  .scene h2, .final-cta h2 { font-size: 46px; }
  .section { padding: 110px 18px; }
  .section-copy { margin-bottom: 58px; }
  .section-copy h2 { font-size: 47px; }
  .section-copy > p:last-child { font-size: 17px; }
  .agent-card { min-height: 530px; padding: 38px 26px 26px; border-radius: 22px; }
  .agent-copy h3 { font-size: 38px; }
  .agent-demo { padding: 22px; }
  .email-demo { padding: 8px 18px; }
  .timeline-crop { inset: 25px 20px auto 65px; height: 225px; }
  .call-card { left: 20px; right: 20px; bottom: 25px; width: auto; padding: 22px; }
  .call-card h3 { font-size: 23px; }
  .feature-pair { grid-template-columns: 1fr; gap: 60px; margin-top: 75px; }
  .feature-pair h3 { font-size: 25px; }
  .large-shot, .trace-shot { border-radius: 13px; }
  .evaluation-detail { margin-top: 105px; }
  .tbe-shot { height: 240px; }
  .tbe-shot img { width: 150%; max-width: none; }
  .detail-copy h3 { font-size: 40px; }
  .award { display: block; margin-top: 100px; }
  .award h3 { font-size: 39px; }
  .award p { margin-top: 30px; text-align: left; }
  .evidence-line { display: none; }
  .security { margin-top: 110px; }
  .security-intro h3 { font-size: 40px; }
  .security-points p { grid-template-columns: 1fr; gap: 4px; }
  .erp { margin-top: 100px; font-size: 21px; }
  .faq-list summary { padding: 21px 42px 21px 0; font-size: 18px; }
  .faq-list details p { margin: -2px 32px 22px 0; }
  .final-cta { padding: 120px 20px; }
  footer { height: auto; }
  .footer-shell { padding: 28px 0; flex-direction: column; align-items: flex-start; gap: 14px; }
  .footer-shell .brand { width: auto; }
  .footer-contact { margin-left: 0; flex-direction: column; align-items: flex-start; gap: 6px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .wave i { animation: none; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .carousel-card { transition: none; }
}