:root {
  --bg: #071017;
  --bg-soft: #101b24;
  --card: #12202b;
  --line: rgba(166, 189, 204, 0.22);
  --text: #edf3f7;
  --muted: #9fb5c6;
  --accent: #1f8a68;
  --accent-soft: #8dd4bc;
  --accent-wash: rgba(141, 212, 188, 0.1);
  --shadow: 0 28px 60px -32px rgba(2, 18, 28, 0.75);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Outfit, "Segoe UI", sans-serif;
}

body {
  background:
    radial-gradient(circle at 6% 0%, rgba(31, 138, 104, 0.2), transparent 32%),
    radial-gradient(circle at 88% 18%, rgba(141, 212, 188, 0.12), transparent 28%),
    linear-gradient(180deg, #0a141d 0%, var(--bg) 60%);
}

.shell {
  width: min(1400px, 92vw);
  margin: 0 auto;
}

.hero {
  min-height: 100dvh;
  padding: 2.2rem 0 3.2rem;
  position: relative;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: linear-gradient(to right, rgba(236, 243, 248, 0.045) 1px, transparent 1px);
  background-size: 72px 100%;
  opacity: 0.06;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.15px;
}

.brand__dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: linear-gradient(180deg, var(--accent-soft), var(--accent));
  box-shadow: 0 0 0 5px rgba(47, 143, 114, 0.15);
}

.hero__layout {
  margin-top: 5.2rem;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
  gap: 2rem;
  align-items: end;
}

.badge {
  display: inline-block;
  margin: 0;
  padding: 0.45rem 0.85rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  color: var(--accent-soft);
  background: rgba(127, 208, 178, 0.08);
}

h1 {
  margin: 1rem 0;
  max-width: 11ch;
  font-size: clamp(2.5rem, 5.2vw, 5rem);
  line-height: 0.94;
  letter-spacing: -0.03em;
}

.hero__content > p {
  max-width: 60ch;
  font-size: 1.04rem;
  line-height: 1.6;
  color: var(--muted);
}

.hero__actions {
  margin-top: 1.95rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
}

.hero__ribbon {
  margin-top: 2rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.hero__ribbon span {
  padding: 0.55rem 0.8rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.025);
  color: var(--muted);
  font-size: 0.9rem;
}

.hero__stage {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(190px, 0.8fr);
  gap: 1rem;
}

.stage-column {
  display: grid;
  gap: 1rem;
}

.stage-card {
  min-height: 100%;
  padding: 1.15rem;
  border-radius: 26px;
  border: 1px solid rgba(166, 189, 204, 0.18);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.015)),
    rgba(10, 19, 27, 0.84);
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
}

.stage-card__eyebrow {
  margin: 0 0 0.8rem;
  color: var(--accent-soft);
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.stage-card strong {
  display: block;
  margin-bottom: 0.45rem;
  font-size: 1.08rem;
  line-height: 1.2;
}

.stage-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.5;
}

.stage-card--conversation {
  display: grid;
  gap: 0.85rem;
}

.stage-card--signal {
  transform: translateY(24px);
}

.chat-bubble {
  width: 100%;
  padding: 0.95rem;
  border-radius: 18px;
  border: 1px solid rgba(166, 189, 204, 0.16);
}

.chat-bubble span {
  display: block;
  margin-bottom: 0.35rem;
  font-size: 0.8rem;
  color: var(--accent-soft);
}

.chat-bubble p {
  margin: 0;
  color: var(--text);
  line-height: 1.45;
}

.chat-bubble--client {
  background: rgba(255, 255, 255, 0.03);
  justify-self: end;
}

.chat-bubble--agent {
  background: linear-gradient(160deg, rgba(31, 138, 104, 0.18), rgba(31, 138, 104, 0.08));
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  font-weight: 600;
  border-radius: 14px;
  border: 1px solid transparent;
  padding: 0.7rem 1.08rem;
  color: #eaf4ef;
  background: linear-gradient(160deg, var(--accent), #1f6f59);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), filter 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.btn:hover {
  transform: translateY(-1px);
  filter: brightness(1.06);
}

.btn:active {
  transform: translateY(0) scale(0.98);
}

.btn--ghost {
  color: var(--text);
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.02);
}

.btn--ghost:hover {
  background: rgba(255, 255, 255, 0.05);
}

.section {
  padding: 5.5rem 0;
}

h2 {
  margin: 0 0 0.65rem;
  font-size: clamp(1.6rem, 3.4vw, 2.7rem);
  letter-spacing: -0.02em;
}

.section__lead {
  margin: 0;
  max-width: 65ch;
  color: var(--muted);
  line-height: 1.55;
}

.grid {
  margin-top: 1.8rem;
  display: grid;
  grid-template-columns: 1.25fr 0.75fr 0.9fr;
  gap: 1rem;
}

.card {
  padding: 1.35rem;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.035), rgba(255, 255, 255, 0.012));
  border: 1px solid var(--line);
  border-radius: 24px;
  box-shadow: var(--shadow);
}

.card:nth-child(1) {
  grid-row: span 2;
}

.card:nth-child(4) {
  grid-column: span 2;
}

.card h3 {
  margin: 0 0 0.45rem;
  font-size: 1.1rem;
  letter-spacing: -0.01em;
}

.card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.5;
}

.section--guide {
  position: relative;
}

.guide__layout {
  margin-top: 1.8rem;
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 1rem;
  align-items: start;
}

.guide__questions {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.question {
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 1.3rem;
  background:
    linear-gradient(180deg, rgba(141, 212, 188, 0.06), rgba(255, 255, 255, 0.02)),
    rgba(8, 16, 24, 0.72);
}

.question p {
  margin: 0;
  color: var(--text);
  line-height: 1.4;
  font-size: 1.18rem;
  letter-spacing: -0.02em;
}

.guide__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.guide__item {
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 1.25rem;
  background: rgba(8, 16, 24, 0.68);
}

.guide__item:nth-child(1) {
  grid-row: span 2;
}

.guide__item h3 {
  margin: 0 0 0.8rem;
  font-size: 1rem;
}

.guide__item p {
  margin: 0;
  color: var(--muted);
  line-height: 1.45;
}

.section--reviews {
  width: 100%;
  padding-left: 0;
  padding-right: 0;
}

.section--reviews h2,
.section--reviews .section__lead {
  width: min(1400px, 92vw);
  margin-left: auto;
  margin-right: auto;
}

.reviews-marquee {
  width: min(1400px, 92vw);
  margin: 1.5rem auto 0;
  overflow: hidden;
  position: relative;
  mask-image: linear-gradient(to right, transparent, black 8%, black 92%, transparent);
  -webkit-mask-image: linear-gradient(to right, transparent, black 8%, black 92%, transparent);
}

.reviews-track {
  display: flex;
  gap: 0.95rem;
  width: max-content;
  animation: reviews-scroll 32s linear infinite;
}

.review {
  flex: 0 0 312px;
  padding: 0.95rem;
  border-radius: 18px;
  border: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.035), rgba(255, 255, 255, 0.012)),
    rgba(8, 16, 24, 0.72);
}

.review .score {
  margin: 0;
  color: var(--accent-soft);
  font-family: "JetBrains Mono", monospace;
  font-size: 0.92rem;
}

.review p {
  margin: 0.4rem 0 0;
  color: var(--text);
  line-height: 1.45;
}

.review span {
  display: inline-block;
  margin-top: 0.5rem;
  color: var(--accent-soft);
  font-weight: 600;
}

.review:nth-child(2n) {
  transform: translateY(16px);
}

.reviews-marquee:hover .reviews-track {
  animation-play-state: paused;
}

@keyframes reviews-scroll {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(calc(-50% - 0.475rem));
  }
}

.footer {
  padding: 2rem 0 2.8rem;
  border-top: 1px solid var(--line);
  display: flex;
  gap: 1rem;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
}

.footer p {
  margin: 0;
  color: var(--muted);
}

.socials {
  display: flex;
  gap: 1rem;
}

.socials a {
  color: var(--accent-soft);
  text-decoration: none;
  transition: opacity 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.socials a:hover {
  opacity: 0.8;
}

.reveal {
  animation: rise 0.75s cubic-bezier(0.16, 1, 0.3, 1) both;
  animation-delay: var(--d, 0s);
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 1024px) {
  .hero__layout {
    grid-template-columns: 1fr;
    gap: 1.4rem;
  }

  .hero__stage {
    grid-template-columns: 1fr;
  }

  .stage-card--signal {
    transform: translateY(0);
  }

  .grid {
    grid-template-columns: 1fr 1fr;
  }

  .card:nth-child(1) {
    grid-row: span 1;
  }

  .card:nth-child(4) {
    grid-column: span 1;
  }

  .guide__layout {
    grid-template-columns: 1fr;
  }

  .guide__grid {
    grid-template-columns: 1fr;
  }

  .guide__item:nth-child(1) {
    grid-row: span 1;
  }

  .review:nth-child(2n) {
    transform: translateY(0);
  }
}

@media (max-width: 768px) {
  .hero {
    padding-top: 1.5rem;
    padding-bottom: 2.4rem;
  }

  .shell {
    width: min(1400px, 90vw);
  }

  .hero__layout {
    margin-top: 3.2rem;
  }

  h1 {
    max-width: 100%;
    font-size: clamp(2.15rem, 9vw, 3rem);
  }

  .grid {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 4.2rem 0;
  }

  .footer {
    flex-direction: column;
    align-items: flex-start;
  }

  .review {
    flex-basis: 280px;
  }
}