:root {
  --ink: #071a2b;
  --ink-soft: #1d3b55;
  --mist: #d7e6f2;
  --paper: #f3f7fb;
  --brand: #005aa0;
  --brand-deep: #00326e;
  --accent: #3fad4b;
  --accent-ink: #0d3b14;
  --line: rgba(7, 26, 43, 0.12);
  --shadow: 0 24px 60px rgba(3, 20, 40, 0.28);
  --font-display: "Space Grotesk", system-ui, sans-serif;
  --font-body: "Source Serif 4", Georgia, serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(1200px 600px at 10% -10%, rgba(0, 90, 160, 0.18), transparent 60%),
    radial-gradient(900px 500px at 100% 0%, rgba(63, 173, 75, 0.12), transparent 55%),
    linear-gradient(180deg, #eaf3fa 0%, var(--paper) 40%, #eef4f8 100%);
  font-family: var(--font-body);
  line-height: 1.55;
}

img { max-width: 100%; display: block; }
a { color: var(--brand); }
code {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.92em;
  background: rgba(0, 50, 110, 0.06);
  padding: 0.1em 0.35em;
  border-radius: 4px;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 1.25rem;
  backdrop-filter: blur(14px);
  background: rgba(243, 247, 251, 0.82);
  border-bottom: 1px solid var(--line);
}
.brand-mark {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
  color: var(--ink);
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.02em;
}
.brand-mark img { border-radius: 8px; }
.topbar nav {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  font-family: var(--font-display);
  font-size: 0.95rem;
}
.topbar nav a { text-decoration: none; color: var(--ink-soft); }

.hero {
  min-height: calc(100vh - 64px);
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  align-items: end;
  gap: 0;
  position: relative;
  overflow: hidden;
}
.hero-copy {
  padding: clamp(2rem, 6vw, 5rem) clamp(1.25rem, 5vw, 4.5rem) clamp(2.5rem, 6vw, 5rem);
  max-width: 38rem;
  animation: rise 700ms ease-out both;
}
.brand-hero {
  margin: 0 0 0.35rem;
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 7vw, 5.2rem);
  font-weight: 700;
  letter-spacing: -0.05em;
  line-height: 0.95;
  color: var(--brand-deep);
}
.hero h1 {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3.4vw, 2.35rem);
  font-weight: 500;
  letter-spacing: -0.03em;
  color: var(--ink-soft);
}
.lede {
  margin: 0 0 1.75rem;
  font-size: 1.15rem;
  color: var(--ink-soft);
  max-width: 32rem;
}
.hero-visual {
  position: relative;
  min-height: 100%;
  animation: fade 1.1s ease-out both;
}
.hero-visual img {
  width: 100%;
  height: 100%;
  min-height: calc(100vh - 64px);
  object-fit: cover;
  object-position: center;
  filter: saturate(1.05) contrast(1.04);
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}
.btn {
  appearance: none;
  border: 0;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.9rem 1.2rem;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--accent), #2f8f3a);
  color: white;
  text-decoration: none;
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.01em;
  box-shadow: 0 10px 24px rgba(47, 143, 58, 0.28);
  transition: transform 160ms ease, box-shadow 160ms ease;
}
.btn:hover { transform: translateY(-1px); box-shadow: 0 14px 28px rgba(47, 143, 58, 0.34); }
.btn-ghost {
  background: rgba(255, 255, 255, 0.72);
  color: var(--brand-deep);
  border: 1px solid var(--line);
  box-shadow: none;
}
.btn-small {
  padding: 0.55rem 0.85rem;
  font-size: 0.9rem;
  box-shadow: none;
}

.section {
  padding: clamp(3rem, 7vw, 5.5rem) clamp(1.25rem, 5vw, 4.5rem);
}
.section-narrow { max-width: 52rem; }
.section-band {
  background: linear-gradient(180deg, rgba(0, 90, 160, 0.06), rgba(255, 255, 255, 0.55));
  border-block: 1px solid var(--line);
}
.section h2 {
  margin: 0 0 0.75rem;
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 3vw, 2.3rem);
  letter-spacing: -0.03em;
}
.section h3 {
  margin: 0 0 0.35rem;
  font-family: var(--font-display);
  font-size: 1.15rem;
  letter-spacing: -0.02em;
}
.section-lede {
  margin: 0 0 1.75rem;
  color: var(--ink-soft);
  max-width: 40rem;
}

.steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1.25rem;
}
.steps li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem;
  align-items: start;
}
.step-num {
  width: 2.4rem;
  height: 2.4rem;
  border-radius: 999px;
  display: grid;
  place-items: center;
  background: var(--brand-deep);
  color: white;
  font-family: var(--font-display);
  font-weight: 700;
}
.steps p { margin: 0; color: var(--ink-soft); }

.tool-panel {
  max-width: 46rem;
  padding: 1.25rem 0 0;
}
.tool-panel label {
  display: block;
  font-family: var(--font-display);
  font-size: 0.9rem;
  margin-bottom: 0.35rem;
}
.tool-panel input {
  width: min(100%, 22rem);
  margin-bottom: 1rem;
  padding: 0.75rem 0.9rem;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: white;
  font: inherit;
}
.email-box {
  white-space: pre-wrap;
  background: #0b1f33;
  color: #e8f2fb;
  border-radius: 14px;
  padding: 1.1rem 1.2rem;
  overflow: auto;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.86rem;
  line-height: 1.5;
  box-shadow: var(--shadow);
  animation: rise 650ms ease-out both;
}
.toast {
  margin-top: 0.75rem;
  font-family: var(--font-display);
  color: var(--accent-ink);
}

.plain-list {
  margin: 0;
  padding-left: 1.2rem;
  color: var(--ink-soft);
}
.plain-list li { margin: 0.45rem 0; }
.plain-list.mono { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 0.95rem; }
.note { color: var(--ink-soft); margin-top: 1rem; }
.text-link { font-family: var(--font-display); font-weight: 700; }

.fact-list {
  margin: 0;
  display: grid;
  gap: 1rem;
}
.fact-list > div {
  display: grid;
  gap: 0.2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--line);
}
.fact-list dt {
  font-family: var(--font-display);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--brand);
}
.fact-list dd { margin: 0; }

.footer {
  padding: 2rem 1.25rem 3rem;
  color: var(--ink-soft);
  font-size: 0.95rem;
}

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

@media (max-width: 860px) {
  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
  }
  .hero-visual img {
    min-height: 52vh;
  }
  .hero-copy {
    order: 2;
    padding-top: 1.5rem;
  }
  .hero-visual { order: 1; }
}