:root {
  --ink: #071525;
  --ink-soft: #123048;
  --fog: #e8eef4;
  --mist: #f4f7fa;
  --paper: #ffffff;
  --accent: #0d9f8a;
  --accent-deep: #087a6a;
  --accent-soft: rgba(13, 159, 138, 0.14);
  --text: #142433;
  --muted: #5a6b7a;
  --line: rgba(7, 21, 37, 0.1);
  --shadow: 0 24px 60px rgba(7, 21, 37, 0.14);
  --radius: 18px;
  --header-h: 76px;
  --font-display: "Syne", system-ui, sans-serif;
  --font-body: "Figtree", system-ui, sans-serif;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--text);
  background:
    radial-gradient(1200px 600px at 100% -10%, rgba(13, 159, 138, 0.08), transparent 55%),
    radial-gradient(900px 500px at -10% 40%, rgba(18, 48, 72, 0.06), transparent 50%),
    var(--mist);
  line-height: 1.55;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font: inherit;
  border: 0;
  background: none;
  cursor: pointer;
}

.container {
  width: min(1120px, calc(100% - 2.5rem));
  margin-inline: auto;
}

.page-loader {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: grid;
  place-items: center;
  background: var(--ink);
  transition: opacity 0.5s var(--ease), visibility 0.5s;
}

.page-loader.is-done {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.loader-mark {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  border: 3px solid rgba(255, 255, 255, 0.2);
  border-top-color: var(--accent);
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Header */
.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 50;
  height: var(--header-h);
  transition: background 0.35s var(--ease), backdrop-filter 0.35s, box-shadow 0.35s;
}

.site-header.is-scrolled {
  background: rgba(7, 21, 37, 0.88);
  backdrop-filter: blur(14px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.18);
}

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  color: #fff;
  min-width: 0;
}

.brand-mark {
  flex: 0 0 auto;
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: linear-gradient(145deg, var(--accent), var(--accent-deep));
  color: #fff;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.95rem;
  letter-spacing: 0.04em;
}

.brand-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.nav {
  margin-left: auto;
  display: flex;
  gap: 1.75rem;
}

.nav a {
  color: rgba(255, 255, 255, 0.78);
  font-weight: 500;
  font-size: 0.95rem;
  transition: color 0.25s;
}

.nav a:hover {
  color: #fff;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  padding: 0.85rem 1.35rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: transform 0.25s var(--ease), background 0.25s, color 0.25s, box-shadow 0.25s;
}

.btn:hover {
  transform: translateY(-2px);
}

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

.btn-header {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.22);
  padding: 0.7rem 1.15rem;
  font-size: 0.88rem;
}

.btn-header:hover {
  background: #fff;
  color: var(--ink);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-deep));
  color: #fff;
  box-shadow: 0 14px 30px rgba(13, 159, 138, 0.35);
}

.btn-primary:hover {
  box-shadow: 0 18px 36px rgba(13, 159, 138, 0.45);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.28);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.18);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  margin-left: auto;
  place-items: center;
  gap: 6px;
  flex-direction: column;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: #fff;
  transition: transform 0.3s var(--ease), opacity 0.3s;
}

.nav-toggle.is-open span:first-child {
  transform: translateY(4px) rotate(45deg);
}

.nav-toggle.is-open span:last-child {
  transform: translateY(-4px) rotate(-45deg);
}

.mobile-nav {
  display: none;
  flex-direction: column;
  gap: 1rem;
  padding: 1rem 1.25rem 1.5rem;
  background: rgba(7, 21, 37, 0.96);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.mobile-nav.is-open {
  display: flex;
}

.mobile-nav a {
  color: rgba(255, 255, 255, 0.88);
  font-weight: 500;
}

.mobile-nav .btn {
  margin-top: 0.5rem;
  background: var(--accent);
  color: #fff;
}

/* Hero */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100dvh;
  display: grid;
  align-items: end;
  color: #fff;
  overflow: hidden;
}

.hero-media {
  position: absolute;
  inset: 0;
  background:
    center / cover no-repeat
    url("https://images.unsplash.com/photo-1586528116311-ad8dd3c8310d?auto=format&fit=crop&w=2000&q=80");
  transform: scale(1.06);
  animation: heroZoom 18s ease-in-out infinite alternate;
}

@keyframes heroZoom {
  from { transform: scale(1.06) translateY(0); }
  to { transform: scale(1.12) translateY(-1.5%); }
}

.hero-veil {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(7, 21, 37, 0.55) 0%, rgba(7, 21, 37, 0.35) 35%, rgba(7, 21, 37, 0.82) 100%),
    linear-gradient(90deg, rgba(7, 21, 37, 0.55) 0%, transparent 55%);
}

.hero-content {
  position: relative;
  z-index: 1;
  padding: calc(var(--header-h) + 4rem) 0 5.5rem;
  max-width: 720px;
  margin-left: max(calc((100% - 1120px) / 2), 1.25rem);
  margin-right: auto;
  width: min(720px, calc(100% - 2.5rem));
}

.hero-brand {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 4vw, 2.35rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.05;
  animation: rise 0.9s var(--ease) both;
}

.hero h1 {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-size: clamp(2.1rem, 5.4vw, 3.6rem);
  font-weight: 700;
  letter-spacing: -0.035em;
  line-height: 1.05;
  animation: rise 0.9s 0.08s var(--ease) both;
}

.hero-copy {
  margin: 0 0 2rem;
  max-width: 34rem;
  color: rgba(255, 255, 255, 0.84);
  font-size: 1.08rem;
  animation: rise 0.9s 0.16s var(--ease) both;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  animation: rise 0.9s 0.24s var(--ease) both;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(22px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-scroll {
  position: absolute;
  left: 50%;
  bottom: 1.5rem;
  transform: translateX(-50%);
  width: 22px;
  height: 34px;
  border: 1.5px solid rgba(255, 255, 255, 0.45);
  border-radius: 999px;
}

.hero-scroll span {
  display: block;
  width: 3px;
  height: 8px;
  margin: 7px auto 0;
  border-radius: 999px;
  background: #fff;
  animation: scrollDot 1.6s ease-in-out infinite;
}

@keyframes scrollDot {
  0%, 100% { opacity: 0.3; transform: translateY(0); }
  50% { opacity: 1; transform: translateY(10px); }
}

/* Sections */
.section {
  padding: 6rem 0;
}

.section-head {
  max-width: 40rem;
  margin-bottom: 2.75rem;
}

.section-head-row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1.5rem;
  max-width: none;
}

.section-head h2,
.contact-intro h2 {
  margin: 0 0 0.75rem;
  font-family: var(--font-display);
  font-size: clamp(1.85rem, 3.4vw, 2.6rem);
  letter-spacing: -0.03em;
  line-height: 1.1;
  color: var(--ink);
}

.section-head p,
.contact-intro p {
  margin: 0;
  color: var(--muted);
  font-size: 1.05rem;
}

/* Instructions */
.instructions {
  background:
    linear-gradient(180deg, transparent, rgba(13, 159, 138, 0.04) 40%, transparent),
    var(--mist);
}

.steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  counter-reset: none;
}

.step {
  position: relative;
  padding: 1.75rem 1.5rem 1.6rem;
  border-top: 2px solid var(--accent);
  background: transparent;
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

.step.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.step-number {
  display: block;
  margin-bottom: 1.1rem;
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: -0.04em;
  line-height: 1;
}

.step h3 {
  margin: 0 0 0.65rem;
  font-family: var(--font-display);
  font-size: 1.25rem;
  letter-spacing: -0.02em;
  color: var(--ink);
}

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

/* Slider */
.features {
  background: var(--paper);
  border-block: 1px solid var(--line);
}

.slider-controls {
  display: flex;
  gap: 0.6rem;
  flex-shrink: 0;
}

.slider-btn {
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  border: 1px solid var(--line);
  color: var(--ink);
  background: var(--paper);
  transition: background 0.25s, color 0.25s, border-color 0.25s, transform 0.25s;
}

.slider-btn:hover {
  background: var(--ink);
  color: #fff;
  border-color: var(--ink);
  transform: translateY(-2px);
}

.slider {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
}

.slider-track {
  display: flex;
  transition: transform 0.65s var(--ease);
  will-change: transform;
}

.slide {
  flex: 0 0 100%;
  min-width: 100%;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  min-height: 420px;
  background: var(--ink);
  color: #fff;
}

.slide-media {
  position: relative;
  min-height: 280px;
  background: center / cover no-repeat;
  overflow: hidden;
}

.slide-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent 55%, rgba(7, 21, 37, 0.55));
}

.slide-body {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 2.75rem 2.5rem;
  gap: 1rem;
}

.slide-index {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
}

.slide-body h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 2.8vw, 2.2rem);
  letter-spacing: -0.03em;
  line-height: 1.15;
}

.slide-body p {
  margin: 0;
  color: rgba(255, 255, 255, 0.78);
  font-size: 1.05rem;
  max-width: 28rem;
}

.slider-dots {
  display: flex;
  justify-content: center;
  gap: 0.55rem;
  margin-top: 1.35rem;
}

.slider-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: rgba(7, 21, 37, 0.18);
  transition: width 0.35s var(--ease), background 0.35s, border-radius 0.35s;
}

.slider-dot.is-active {
  width: 28px;
  border-radius: 999px;
  background: var(--accent);
}

/* Contact */
.contact {
  background:
    linear-gradient(135deg, rgba(13, 159, 138, 0.08), transparent 45%),
    var(--fog);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

.contact-intro .btn {
  margin-top: 1.75rem;
}

.contact-details {
  display: grid;
  gap: 0;
}

.contact-item {
  display: grid;
  gap: 0.35rem;
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--line);
  transition: color 0.25s;
}

.contact-item:first-child {
  border-top: 1px solid var(--line);
}

a.contact-item:hover .contact-value {
  color: var(--accent-deep);
}

.contact-label {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

.contact-value {
  font-size: 1.08rem;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.4;
}

/* Footer */
.site-footer {
  background: var(--ink);
  color: rgba(255, 255, 255, 0.72);
  padding: 2.75rem 0;
}

.footer-inner {
  display: grid;
  gap: 1.25rem;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.9rem;
}

.footer-brand strong {
  display: block;
  color: #fff;
  font-family: var(--font-display);
  font-size: 1.05rem;
}

.footer-brand span[data-bind="company.tagline"] {
  display: block;
  font-size: 0.92rem;
  margin-top: 0.15rem;
}

.footer-note,
.footer-copy {
  margin: 0;
  font-size: 0.92rem;
}

.footer-copy {
  opacity: 0.7;
}

/* Toast */
.toast {
  position: fixed;
  left: 50%;
  bottom: 1.5rem;
  transform: translateX(-50%) translateY(120%);
  z-index: 80;
  padding: 0.9rem 1.25rem;
  border-radius: 999px;
  background: var(--ink);
  color: #fff;
  font-weight: 600;
  font-size: 0.92rem;
  box-shadow: var(--shadow);
  opacity: 0;
  transition: transform 0.4s var(--ease), opacity 0.4s;
  pointer-events: none;
  max-width: calc(100% - 2rem);
  text-align: center;
}

.toast.is-show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

/* Reveal */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive */
@media (max-width: 900px) {
  .nav,
  .btn-header {
    display: none;
  }

  .nav-toggle {
    display: grid;
  }

  .steps {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }

  .step {
    padding-block: 1.4rem;
  }

  .slide {
    grid-template-columns: 1fr;
    min-height: 0;
  }

  .slide-media {
    min-height: 220px;
  }

  .slide-media::after {
    background: linear-gradient(180deg, transparent 40%, rgba(7, 21, 37, 0.7));
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .section-head-row {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 600px) {
  .hero-content {
    padding-bottom: 4.5rem;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .section {
    padding: 4.25rem 0;
  }

  .slide-body {
    padding: 1.75rem 1.35rem 2rem;
  }
}

@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;
  }
}