:root {
  --ink: #0c1a22;
  --ink-mid: #163040;
  --ink-soft: #2a4556;
  --sea: #178a7c;
  --sea-bright: #2bb5a3;
  --sea-mist: #d5f0eb;
  --paper: #f3f7f9;
  --fog: #e2eaf0;
  --line: #c5d3de;
  --muted: #5a6f7d;
  --signal: #c45e28;
  --white: #fff;
  --shadow: 0 18px 40px rgb(12 26 34 / 10%);
  --radius: 14px;
  --font-display: "Fraunces", Georgia, serif;
  --font-body: "DM Sans", system-ui, sans-serif;
  --max: 1120px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background:
    radial-gradient(ellipse 80% 50% at 10% -10%, rgb(43 181 163 / 18%), transparent 55%),
    radial-gradient(ellipse 60% 40% at 100% 0%, rgb(42 95 122 / 16%), transparent 50%),
    linear-gradient(180deg, #dce8ef 0%, var(--paper) 28%, var(--paper) 100%);
  line-height: 1.55;
  min-height: 100vh;
}
img, svg { display: block; max-width: 100%; }
a { color: var(--sea); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--ink); }
.skip-link {
  position: absolute; left: -999px; top: 0;
  background: var(--ink); color: #fff; padding: 8px 12px; z-index: 100;
}
.skip-link:focus { left: 12px; top: 12px; }
.container { width: min(var(--max), calc(100% - 40px)); margin-inline: auto; }
@media (max-width: 640px) {
  .container { width: min(var(--max), calc(100% - 24px)); }
}

/* Header — light, clean first impression */
.site-header {
  position: sticky; top: 0; z-index: 40;
  background: rgb(255 255 255 / 94%);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  position: relative;
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; min-height: 72px;
}
.brand {
  display: flex; align-items: center; gap: 12px;
  text-decoration: none; color: var(--ink);
  flex-shrink: 0;
}
.brand-mark {
  width: 40px; height: 40px; border-radius: 11px;
  background: linear-gradient(145deg, var(--sea-bright), var(--sea));
  display: grid; place-items: center;
  font-weight: 700; font-size: 0.75rem; letter-spacing: 0.02em;
  color: #fff;
}
.brand-title {
  font-family: var(--font-display);
  font-size: 1.2rem; font-weight: 600; letter-spacing: -0.02em;
  line-height: 1.1;
}
.brand-sub {
  display: block; font-size: 0.72rem; color: var(--muted);
  font-weight: 500; margin-top: 2px;
}
.nav-menu ul {
  list-style: none; margin: 0; padding: 0;
  display: flex; align-items: center; gap: 4px; flex-wrap: wrap;
}
.nav-menu a {
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 0.88rem; font-weight: 560;
  padding: 8px 11px; border-radius: 999px;
}
.nav-menu a:hover, .nav-menu a.active {
  color: var(--ink); background: var(--fog);
}
.nav-menu a.header-cta {
  background: var(--sea); color: #fff; margin-left: 6px;
}
.nav-menu a.header-cta:hover { background: var(--sea-bright); color: var(--ink); }
.nav-toggle {
  display: none; width: 44px; height: 44px;
  border: 1px solid var(--line);
  background: var(--white); border-radius: 10px; cursor: pointer;
  flex-shrink: 0;
}
.nav-toggle span {
  display: block; width: 18px; height: 2px; margin: 4px auto;
  background: var(--ink);
}

/* Hero — bright welcome */
.hero {
  position: relative;
  overflow: hidden;
  color: var(--ink);
  padding: 32px 0 56px;
  background:
    radial-gradient(ellipse 90% 70% at 85% 15%, rgb(43 181 163 / 14%), transparent 55%),
    radial-gradient(ellipse 60% 50% at 10% 90%, rgb(42 95 122 / 8%), transparent 50%),
    linear-gradient(180deg, #fff 0%, var(--sea-mist) 55%, var(--paper) 100%);
}
.hero-grid {
  position: relative; z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  align-items: center;
}
@media (min-width: 901px) {
  .hero {
    min-height: min(78vh, 680px);
    padding: 48px 0 64px;
    display: flex;
    align-items: center;
  }
  .hero-grid {
    grid-template-columns: 1fr min(46%, 520px);
    gap: 40px;
  }
}
.hero::after {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgb(12 26 34 / 4%) 1px, transparent 1px),
    linear-gradient(90deg, rgb(12 26 34 / 4%) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(180deg, rgb(0 0 0 / 35%), transparent 85%);
  pointer-events: none;
  animation: gridDrift 28s linear infinite;
}
@keyframes gridDrift {
  from { background-position: 0 0, 0 0; }
  to { background-position: 48px 24px, 24px 48px; }
}
.hero-inner {
  position: relative; z-index: 1;
  padding: 0;
  max-width: 640px;
}
.hero .brand-hero {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 6vw, 3.6rem);
  font-weight: 650; letter-spacing: -0.03em;
  line-height: 1.02; margin: 0 0 14px;
  color: var(--ink);
}
.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 2.8vw, 1.75rem);
  font-weight: 500; letter-spacing: -0.02em;
  line-height: 1.3; margin: 0 0 14px;
  color: var(--ink-mid);
  max-width: 36ch;
}
.hero .lede {
  margin: 0 0 24px;
  font-size: clamp(0.98rem, 2.2vw, 1.05rem);
  color: var(--muted);
  max-width: 44ch;
}
.hero-visual {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 560px;
  margin: 0 auto;
}
.hero-flow {
  position: relative;
  z-index: 1;
  width: 100%;
  height: auto;
  display: block;
  animation: floatSoft 7s ease-in-out infinite;
}
@keyframes floatSoft {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}
@media (min-width: 901px) {
  .hero-inner { grid-column: 1; }
  .hero-visual {
    grid-column: 2;
    max-width: none;
    margin: 0;
  }
}
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; }

.btn {
  display: inline-flex; align-items: center; justify-content: center;
  font: inherit; font-weight: 650; font-size: 0.95rem;
  padding: 12px 20px; border-radius: 999px;
  border: 1px solid transparent; cursor: pointer;
  text-decoration: none; transition: transform 0.15s ease, background 0.15s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--sea-bright); color: var(--ink); }
.btn-primary:hover { background: #5ed4c4; color: var(--ink); }
.btn-ghost {
  background: transparent; color: var(--ink);
  border-color: var(--line);
}
.btn-ghost:hover { background: var(--fog); color: var(--ink); }
.hero .btn-ghost {
  background: var(--white);
  border-color: var(--line);
  box-shadow: 0 1px 3px rgb(12 26 34 / 6%);
}
.hero .btn-ghost:hover { background: var(--fog); }
.btn-dark {
  background: var(--white);
  color: var(--ink);
  border-color: var(--line);
}
.btn-dark:hover { background: var(--fog); color: var(--ink); }

/* Sections */
.section { padding: 72px 0; }
.section-tight { padding: 48px 0; }
.section-dark {
  background: linear-gradient(160deg, var(--ink), var(--ink-mid));
  color: #fff;
}
.section-dark .muted, .section-dark .lede { color: rgb(255 255 255 / 70%); }
.eyebrow {
  font-size: 0.78rem; font-weight: 700; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--sea); margin: 0 0 10px;
}
.section-dark .eyebrow { color: var(--sea-bright); }
h2 {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  letter-spacing: -0.02em; line-height: 1.15;
  margin: 0 0 12px; font-weight: 600;
}
.lede { color: var(--muted); max-width: 58ch; margin: 0 0 28px; }
.page-hero {
  padding: 72px 0 28px;
}
.page-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 2.8rem);
  letter-spacing: -0.03em; margin: 0 0 12px; font-weight: 650;
}

.split {
  display: grid; grid-template-columns: 1.1fr 0.9fr;
  gap: 40px; align-items: start;
}
.stack { display: grid; gap: 18px; }
.lifecycle-diagram {
  margin: 0;
  padding: 0;
}
.lifecycle-diagram img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 16px;
}
.lifecycle-diagram figcaption {
  margin-top: 14px;
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.45;
  max-width: 68ch;
}
.feature-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 14px; }
.feature-list li {
  padding: 16px 18px 16px 0;
  border-bottom: 1px solid var(--line);
}
.feature-list strong {
  display: block; font-size: 1.02rem; margin-bottom: 4px;
}
.feature-list span { color: var(--muted); font-size: 0.95rem; }

.pain-strip {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px;
}
.pain-step {
  background: rgb(255 255 255 / 8%);
  border: 1px solid rgb(255 255 255 / 14%);
  border-radius: var(--radius);
  padding: 18px 16px;
  animation: fadeUp 0.7s ease both;
}
.pain-step:nth-child(2) { animation-delay: 0.08s; }
.pain-step:nth-child(3) { animation-delay: 0.16s; }
.pain-step:nth-child(4) { animation-delay: 0.24s; }
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: none; }
}
.pain-step .n {
  font-size: 0.75rem; font-weight: 700; color: var(--sea-bright);
  letter-spacing: 0.06em; text-transform: uppercase; margin-bottom: 8px;
}
.pain-step h3 {
  font-family: var(--font-display);
  font-size: 1.15rem; margin: 0 0 8px; font-weight: 600;
}
.pain-step p { margin: 0; color: rgb(255 255 255 / 70%); font-size: 0.9rem; }

.product-band {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 28px 32px;
  box-shadow: var(--shadow);
}
.product-band .tag {
  display: inline-block;
  font-size: 0.75rem; font-weight: 700;
  letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--sea); margin-bottom: 8px;
}

/* Forms — interactive cards */
.form-panel {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 24px;
  box-shadow: var(--shadow);
}
.form-grid { display: grid; gap: 14px; }
.form-row-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
label { display: grid; gap: 6px; font-size: 0.88rem; font-weight: 600; }
input, select, textarea {
  font: inherit; padding: 11px 12px;
  border: 1px solid var(--line); border-radius: 10px;
  background: #fbfdfe; color: var(--ink);
}
input:focus, select:focus, textarea:focus {
  outline: 2px solid rgb(23 138 124 / 35%);
  border-color: var(--sea);
}
.hp { position: absolute; left: -9999px; opacity: 0; height: 0; width: 0; }
.form-status {
  margin-top: 12px; padding: 10px 12px; border-radius: 10px; font-size: 0.9rem;
}
.form-status--success { background: var(--sea-mist); color: #0f5c52; }
.form-status--error { background: #fde8e8; color: #9b1c1c; }

.post-list { display: grid; gap: 16px; }
.post-link {
  display: block; text-decoration: none; color: inherit;
  padding: 20px 0; border-bottom: 1px solid var(--line);
}
.post-link:hover .post-title { color: var(--sea); }
.post-title {
  font-family: var(--font-display);
  font-size: 1.35rem; margin: 0 0 6px; font-weight: 600;
}
.post-meta { color: var(--muted); font-size: 0.85rem; margin: 0 0 8px; }

/* Footer */
.site-footer {
  background: var(--ink);
  color: rgb(255 255 255 / 75%);
  padding: 48px 0 28px;
  margin-top: 40px;
}
.footer-grid {
  display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 28px; margin-bottom: 28px;
}
.site-footer h3 {
  color: #fff; font-size: 0.78rem; letter-spacing: 0.06em;
  text-transform: uppercase; margin: 0 0 12px;
}
.site-footer a { color: rgb(255 255 255 / 75%); text-decoration: none; }
.site-footer a:hover { color: #fff; }
.site-footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.footer-brand {
  font-family: var(--font-display);
  color: #fff; font-size: 1.2rem; font-weight: 600; margin: 0 0 8px;
}
.footer-bottom {
  border-top: 1px solid rgb(255 255 255 / 12%);
  padding-top: 18px; font-size: 0.85rem;
  display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap;
}

.prose { max-width: 68ch; }
.prose p { color: var(--muted); }
.prose h2 { margin-top: 1.6em; }

@media (max-width: 900px) {
  .split, .footer-grid { grid-template-columns: 1fr; }
  .pain-strip { grid-template-columns: 1fr 1fr; }
  .nav-toggle { display: block; }
  .header-inner { flex-wrap: wrap; }
  .nav-menu {
    display: none; order: 3; flex-basis: 100%;
    position: absolute; left: 0; right: 0; top: 100%;
    background: var(--white);
    padding: 12px 20px 20px;
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow);
  }
  .nav-menu.is-open { display: block; }
  .nav-menu ul { flex-direction: column; align-items: stretch; gap: 2px; }
  .nav-menu a {
    padding: 12px 14px;
    font-size: 0.95rem;
  }
  .nav-menu a.header-cta {
    margin-left: 0; text-align: center;
    margin-top: 8px;
  }
  .section { padding: 52px 0; }
  .page-hero { padding: 48px 0 20px; }
}
@media (max-width: 640px) {
  .pain-strip, .footer-grid, .form-row-2 { grid-template-columns: 1fr; }
  .brand-sub { display: none; }
  .cta-row .btn { width: 100%; }
  .hero { padding: 20px 0 40px; gap: 20px; }
  .hero-flow { width: 100%; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation: none !important; transition: none !important;
  }
}