:root {
  --ink: #102033;
  --muted: #5c6b7a;
  --paper: #f4f7fa;
  --accent: #0b6bcb;
  --accent-deep: #084f96;
  --line: rgba(16, 32, 51, 0.12);
  --panel: #ffffff;
  --font-display: "Fraunces", Georgia, serif;
  --font-body: "Source Sans 3", "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: var(--font-body);
  background: var(--paper);
  line-height: 1.5;
}

a {
  color: inherit;
}

.site-nav {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 22px;
  background: rgba(244, 247, 250, 0.86);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
}

.nav-brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.35rem;
  letter-spacing: -0.03em;
  text-decoration: none;
}

.nav-links {
  display: flex;
  gap: 18px;
  font-size: 0.95rem;
  font-weight: 600;
}

.nav-links a {
  text-decoration: none;
  color: var(--muted);
}

.nav-links a:hover {
  color: var(--ink);
}

/* —— Hero: one composition —— */
.hero {
  position: relative;
  min-height: min(100vh, 860px);
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  align-items: center;
  gap: 32px;
  padding: 28px 6vw 64px;
  overflow: hidden;
}

.hero-atmosphere {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 60% at 15% 20%, #d7e8f8 0%, transparent 55%),
    radial-gradient(ellipse 55% 50% at 85% 70%, #c5dcf3 0%, transparent 50%),
    linear-gradient(165deg, #eef3f8 0%, #e2ebf4 45%, #d5e3f0 100%);
  z-index: 0;
}

.hero-grid {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: 0.35;
  background-image:
    linear-gradient(rgba(16, 32, 51, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(16, 32, 51, 0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(180deg, #000 30%, transparent 95%);
}

.hero-copy,
.hero-visual {
  position: relative;
  z-index: 1;
}

.hero-brand {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: clamp(3.2rem, 8vw, 5.4rem);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 0.95;
  animation: rise 0.8s ease both;
}

.hero-headline {
  margin: 0 0 14px;
  max-width: 14ch;
  font-family: var(--font-display);
  font-size: clamp(1.55rem, 3.2vw, 2.15rem);
  font-weight: 500;
  letter-spacing: -0.02em;
  line-height: 1.15;
  animation: rise 0.8s ease 0.08s both;
}

.hero-support {
  margin: 0 0 22px;
  max-width: 34ch;
  color: var(--muted);
  font-size: 1.08rem;
  animation: rise 0.8s ease 0.16s both;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  animation: rise 0.8s ease 0.24s both;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 11px 18px;
  border-radius: 10px;
  font-weight: 700;
  font-size: 0.95rem;
  text-decoration: none;
  border: 1px solid transparent;
  transition: transform 0.15s ease, background 0.15s ease, border-color 0.15s ease;
}

.btn.primary {
  background: var(--accent);
  color: #fff;
}

.btn.primary:hover {
  background: var(--accent-deep);
  transform: translateY(-1px);
}

.btn.ghost {
  background: rgba(255, 255, 255, 0.55);
  border-color: var(--line);
  color: var(--ink);
}

.btn.ghost:hover {
  background: #fff;
  transform: translateY(-1px);
}

.hero-visual {
  display: flex;
  justify-content: flex-end;
  min-height: 420px;
  animation: drift-in 1s ease 0.2s both;
}

.panel-stage {
  width: min(100%, 360px);
  padding: 18px 18px 20px;
  border-radius: 18px 18px 14px 14px;
  background: linear-gradient(180deg, #ffffff 0%, #f7fafc 100%);
  border: 1px solid rgba(16, 32, 51, 0.1);
  box-shadow:
    0 1px 2px rgba(16, 32, 51, 0.05),
    0 28px 60px rgba(16, 32, 51, 0.12);
}

.panel-chrome {
  display: flex;
  gap: 6px;
  margin-bottom: 14px;
}

.panel-chrome span {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #d5dde5;
}

.panel-brand {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.panel-steps {
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
  display: grid;
  gap: 6px;
  font-size: 0.88rem;
  color: var(--muted);
}

.panel-steps li {
  display: flex;
  align-items: center;
  gap: 8px;
}

.panel-steps span {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  display: inline-grid;
  place-items: center;
  font-size: 0.72rem;
  font-weight: 700;
  background: #e8eef4;
  color: var(--muted);
}

.panel-steps .is-done span {
  background: #dcecfc;
  color: var(--accent);
}

.panel-steps .is-active {
  color: var(--ink);
  font-weight: 700;
}

.panel-steps .is-active span {
  background: var(--accent);
  color: #fff;
}

.panel-rows {
  display: grid;
  gap: 8px;
}

.row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 12px;
  border-radius: 10px;
  background: #f0f5fa;
  font-size: 0.88rem;
  animation: row-pulse 4.5s ease-in-out infinite;
}

.row strong {
  font-weight: 600;
}

.row em {
  font-style: normal;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

.row.r1 {
  animation-delay: 0s;
}
.row.r2 {
  animation-delay: 0.35s;
}
.row.r3 {
  animation-delay: 0.7s;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes drift-in {
  from {
    opacity: 0;
    transform: translateX(24px) translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateX(0) translateY(0);
  }
}

@keyframes row-pulse {
  0%,
  100% {
    opacity: 1;
    transform: translateX(0);
  }
  50% {
    opacity: 0.55;
    transform: translateX(2px);
  }
}

/* —— Sections —— */
.section {
  padding: 72px 6vw;
  max-width: 920px;
  margin: 0 auto;
}

.section h2 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  letter-spacing: -0.03em;
  font-weight: 700;
}

.section-lead {
  margin: 0;
  max-width: 42ch;
  color: var(--muted);
  font-size: 1.08rem;
}

.flow {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  display: grid;
  gap: 22px;
  counter-reset: step;
}

.flow li {
  display: grid;
  gap: 4px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.flow strong {
  font-family: var(--font-display);
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}

.flow span {
  color: var(--muted);
  max-width: 52ch;
}

.section-safety {
  padding-top: 24px;
  padding-bottom: 88px;
}

.site-footer {
  padding: 28px 6vw 40px;
  border-top: 1px solid var(--line);
  display: grid;
  gap: 6px;
  background: #e9eef4;
}

.footer-brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.2rem;
  letter-spacing: -0.03em;
}

.site-footer p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.site-footer a {
  color: var(--accent);
  font-weight: 600;
  text-decoration: none;
}

.site-footer a:hover {
  text-decoration: underline;
}

@media (max-width: 860px) {
  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
    padding-top: 18px;
    gap: 40px;
  }

  .hero-visual {
    justify-content: stretch;
    min-height: 0;
  }

  .panel-stage {
    width: 100%;
  }

  .hero-headline {
    max-width: none;
  }
}

@media (max-width: 520px) {
  .nav-links {
    display: none;
  }

  .hero-brand {
    font-size: 3rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
}