:root {
  --bg: #101a1a;
  --bg-soft: #162323;
  --panel: #1d2d2c;
  --panel-strong: #243837;
  --text: #f4f1e9;
  --muted: #d2cec4;
  --soft: #aeb8b1;
  --line: rgba(244, 241, 233, 0.16);
  --accent: #9fd0c4;
  --accent-strong: #c7eee5;
  --river: #7fb5c5;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.32);
  --radius: 24px;
  --font-size-adjust: 0px;
  --container: 1120px;
}

body.light-theme {
  --bg: #f7f3ea;
  --bg-soft: #eee8db;
  --panel: #fffaf0;
  --panel-strong: #f6ead7;
  --text: #172020;
  --muted: #3e4a48;
  --soft: #5e6a67;
  --line: rgba(23, 32, 32, 0.18);
  --accent: #176c65;
  --accent-strong: #0b504c;
  --river: #2a7c8f;
  --shadow: 0 18px 45px rgba(42, 49, 45, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  font-size: calc(18px + var(--font-size-adjust));
  line-height: 1.65;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(127, 181, 197, 0.16), transparent 34rem),
    linear-gradient(180deg, var(--bg), var(--bg-soft));
  min-height: 100vh;
}

body.no-motion *,
body.no-motion *::before,
body.no-motion *::after {
  animation: none !important;
  transition: none !important;
  scroll-behavior: auto !important;
}

a {
  color: var(--accent-strong);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.16em;
}

a:hover {
  text-decoration-thickness: 0.14em;
}

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

button,
a.button {
  font: inherit;
}

.container {
  width: min(100% - 40px, var(--container));
  margin-inline: auto;
}

.narrow {
  width: min(100% - 40px, 850px);
}

.section-pad {
  padding: 92px 0;
}

.skip-link {
  position: absolute;
  left: 16px;
  top: 16px;
  z-index: 100;
  transform: translateY(-150%);
  padding: 10px 14px;
  background: var(--accent-strong);
  color: var(--bg);
  border-radius: 10px;
  font-weight: 700;
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(16px);
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  min-height: 82px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
  text-decoration: none;
  min-width: 245px;
}

.brand-mark {
  width: 42px;
  height: 42px;
  display: inline-grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  color: var(--accent-strong);
  font-size: 30px;
  line-height: 1;
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-size: 1.05rem;
  letter-spacing: 0.02em;
}

.brand small {
  color: var(--muted);
  font-size: 0.76rem;
  line-height: 1.25;
}

.main-nav {
  display: flex;
  gap: 18px;
  align-items: center;
  font-size: 0.92rem;
}

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

.main-nav a:hover,
.main-nav a:focus {
  color: var(--text);
}

.access-tools {
  display: flex;
  gap: 8px;
  align-items: center;
}

.tool-button {
  border: 1px solid var(--line);
  background: transparent;
  color: var(--text);
  border-radius: 999px;
  padding: 8px 12px;
  cursor: pointer;
}

.tool-button:hover,
.tool-button:focus-visible {
  border-color: var(--accent-strong);
}

.hero {
  position: relative;
  overflow: hidden;
  padding-top: 110px;
}

.river-bg {
  position: absolute;
  inset: auto 0 0 0;
  height: 50%;
  background:
    linear-gradient(180deg, transparent, color-mix(in srgb, var(--river) 10%, transparent)),
    url("assets/riviere.svg") center bottom / 1200px auto no-repeat;
  opacity: 0.12;
  pointer-events: none;
}

.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
  gap: 58px;
  align-items: center;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--accent-strong);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-size: 0.76rem;
  font-weight: 700;
}

h1,
h2,
h3 {
  margin-top: 0;
  line-height: 1.12;
  letter-spacing: -0.035em;
}

h1 {
  margin-bottom: 24px;
  max-width: 780px;
  font-size: clamp(3rem, 8vw, 6.8rem);
}

h2 {
  margin-bottom: 22px;
  font-size: clamp(2rem, 4.6vw, 4.2rem);
}

h3 {
  margin-bottom: 12px;
  font-size: 1.35rem;
}

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

.lead {
  max-width: 690px;
  font-size: clamp(1.15rem, 2vw, 1.42rem);
  color: var(--text);
}

.hero-actions,
.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin: 32px 0 16px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 12px 20px;
  border-radius: 999px;
  border: 1px solid var(--line);
  text-decoration: none;
  cursor: pointer;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-1px);
}

.button.primary {
  background: var(--accent-strong);
  color: var(--bg);
  border-color: var(--accent-strong);
  font-weight: 700;
}

.button.ghost {
  background: transparent;
  color: var(--text);
}

.discreet-note {
  color: var(--soft);
  font-size: 0.95rem;
}

.river-card {
  margin: 0;
  padding: 22px;
  background: linear-gradient(145deg, var(--panel), var(--panel-strong));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.river-card img {
  border-radius: calc(var(--radius) - 8px);
  border: 1px solid var(--line);
}

.river-card figcaption {
  margin-top: 16px;
  color: var(--soft);
  font-size: 0.96rem;
}

.intro h2 {
  max-width: 900px;
}

.muted {
  background: color-mix(in srgb, var(--panel) 42%, transparent);
  border-block: 1px solid var(--line);
}

.two-columns {
  display: grid;
  grid-template-columns: minmax(260px, 0.82fr) minmax(0, 1.18fr);
  gap: 70px;
  align-items: start;
}

.section-heading p:last-child,
.centered p:last-child {
  max-width: 700px;
}

.centered {
  text-align: center;
  margin-inline: auto;
  max-width: 820px;
  margin-bottom: 48px;
}

.centered p {
  margin-inline: auto;
}

.text-stack p:last-child {
  margin-bottom: 0;
}

.principles {
  display: grid;
  gap: 16px;
  margin-top: 30px;
}

.principles article,
.card,
.step,
.contact-card,
.portrait-panel {
  background: color-mix(in srgb, var(--panel) 88%, transparent);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px;
}

.principles article h3,
.card h3,
.step h3 {
  margin-bottom: 8px;
}

.principles article p,
.card p,
.step p {
  margin-bottom: 0;
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.card {
  min-height: 235px;
}

.card h3::before {
  content: "∿";
  display: block;
  color: var(--accent-strong);
  font-size: 1.8rem;
  line-height: 1;
  margin-bottom: 16px;
}

.about-block {
  align-items: center;
}

.portrait-panel {
  min-height: 340px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  background:
    radial-gradient(circle at 20% 20%, color-mix(in srgb, var(--river) 24%, transparent), transparent 14rem),
    linear-gradient(145deg, var(--panel), var(--panel-strong));
  box-shadow: var(--shadow);
}

.portrait-panel .waterline {
  display: block;
  color: var(--accent-strong);
  font-size: 6rem;
  line-height: 0.8;
  margin-bottom: 18px;
}

.portrait-panel p {
  color: var(--text);
  font-size: 1.25rem;
}

.steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.step span {
  width: 46px;
  height: 46px;
  display: inline-grid;
  place-items: center;
  margin-bottom: 22px;
  border-radius: 50%;
  background: color-mix(in srgb, var(--accent) 18%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent-strong) 42%, transparent);
  color: var(--accent-strong);
  font-weight: 700;
}

.clarity-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}

.clarity-list div {
  padding: 26px;
  background: var(--panel);
  border-radius: var(--radius);
  border: 1px solid var(--line);
}

.clarity-list ul {
  margin: 0;
  padding-left: 1.1em;
  color: var(--muted);
}

.clarity-list li + li {
  margin-top: 8px;
}

.quote-section blockquote {
  margin: 0;
  padding: 44px;
  color: var(--text);
  font-size: clamp(1.6rem, 3.4vw, 3rem);
  line-height: 1.24;
  letter-spacing: -0.035em;
  border-left: 3px solid var(--accent-strong);
  background: color-mix(in srgb, var(--panel) 60%, transparent);
  border-radius: 0 var(--radius) var(--radius) 0;
}

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.85fr);
  gap: 54px;
  align-items: start;
}

.contact-card {
  box-shadow: var(--shadow);
}

.contact-card code {
  padding: 2px 6px;
  background: color-mix(in srgb, var(--bg) 70%, transparent);
  border-radius: 6px;
  color: var(--accent-strong);
}

.contact-line {
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.copy-status {
  min-height: 1.6em;
  color: var(--accent-strong);
  font-size: 0.95rem;
}

.site-footer {
  padding: 38px 0;
  border-top: 1px solid var(--line);
  background: color-mix(in srgb, var(--bg) 86%, transparent);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr 1fr;
  gap: 28px;
  align-items: start;
}

.footer-grid p {
  margin-bottom: 0;
  font-size: 0.92rem;
}

.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 650ms ease, transform 650ms ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

:focus-visible {
  outline: 3px solid var(--accent-strong);
  outline-offset: 4px;
}

@media (max-width: 980px) {
  .header-inner {
    flex-wrap: wrap;
    padding: 14px 0;
  }

  .main-nav {
    order: 3;
    width: 100%;
    overflow-x: auto;
    padding-bottom: 2px;
  }

  .hero-grid,
  .two-columns,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .cards-grid,
  .steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 660px) {
  .container,
  .narrow {
    width: min(100% - 28px, var(--container));
  }

  .section-pad {
    padding: 64px 0;
  }

  .hero {
    padding-top: 72px;
  }

  .brand {
    min-width: 0;
  }

  .access-tools {
    width: 100%;
  }

  .tool-button {
    flex: 1;
  }

  .cards-grid,
  .steps,
  .clarity-list,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .quote-section blockquote {
    padding: 30px 24px;
  }

  h1 {
    font-size: clamp(2.65rem, 14vw, 4.2rem);
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .button:hover,
  .button:focus-visible {
    transform: none;
  }
}

.button.whatsapp {
  background: color-mix(in srgb, var(--accent) 18%, transparent);
  color: var(--text);
  border-color: color-mix(in srgb, var(--accent-strong) 48%, transparent);
  font-weight: 700;
}

.button.whatsapp:hover,
.button.whatsapp:focus-visible {
  background: color-mix(in srgb, var(--accent) 28%, transparent);
}