:root {
  --teal: #0b5c4c;
  --teal-dark: #08453a;
  --maroon: #7a3728;
  --maroon-dark: #602a1f;
  --blue: #b7d6ea;
  --blue-soft: #d7e8f2;
  --cream: #f1efe9;
  --cream-2: #e8e6df;
  --ink: #241f1c;
  --paper: #faf9f6;

  --serif: "Instrument Serif", Georgia, serif;
  --sans: "Source Sans 3", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--sans);
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}

h1, h2 {
  font-family: var(--serif);
  font-weight: 400;
  line-height: 1.05;
  margin: 0;
}

p { margin: 0; }

a { color: inherit; }

.wrap {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 32px;
}

button { font-family: inherit; }

:focus-visible {
  outline: 3px solid var(--teal);
  outline-offset: 3px;
}

/* ---------- Header ---------- */

.site-header {
  background: var(--paper);
  border-bottom: 1px solid var(--cream-2);
  position: sticky;
  top: 0;
  z-index: 10;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.logo {
  font-family: var(--serif);
  font-size: 1.6rem;
  color: var(--maroon);
}

.lang-switch {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
}

.lang-sep {
  color: var(--cream-2);
}

.lang-btn {
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px 4px;
  color: #8a8378;
  font-size: 0.9rem;
  letter-spacing: 0.02em;
}

.lang-btn.is-active {
  color: var(--ink);
  border-bottom: 2px solid var(--maroon);
}

/* ---------- Hero ---------- */

.hero {
  position: relative;
  background: var(--blue);
  overflow: hidden;
  padding: 96px 0 120px;
}

.hero-wave {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero-wave path {
  fill: none;
  stroke: #9ec3db;
  stroke-width: 26;
  stroke-linecap: round;
  opacity: 0.55;
}

.hero-wave .wave-2 {
  stroke: #a9cee1;
  opacity: 0.4;
}

.hero-inner {
  position: relative;
  max-width: 720px;
}

.eyebrow {
  font-size: 1.05rem;
  color: var(--maroon-dark);
  margin-bottom: 18px;
}

.hero h1 {
  font-size: clamp(2.6rem, 6vw, 4.4rem);
  color: var(--maroon);
}

.hero-sub {
  margin-top: 28px;
  font-size: 1.15rem;
  line-height: 1.55;
  max-width: 56ch;
  color: #2c2622;
}

.btn {
  display: inline-block;
  font-family: var(--sans);
  font-weight: 600;
  font-size: 1rem;
  padding: 14px 30px;
  border-radius: 2px;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: background-color 150ms ease, transform 150ms ease;
}

.btn:active { transform: translateY(1px); }

.btn-primary {
  margin-top: 40px;
  background: var(--maroon);
  color: var(--paper);
}

.btn-primary:hover { background: var(--maroon-dark); }

.btn-secondary {
  background: var(--teal);
  color: var(--paper);
  width: 100%;
}

.btn-secondary:hover { background: var(--teal-dark); }

.btn-secondary[disabled] {
  opacity: 0.6;
  cursor: default;
}

/* ---------- Pillars ---------- */

.pillars {
  background: var(--cream);
  padding: 100px 0;
}

.pillars .wrap {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 56px;
}

.pillar h2 {
  font-size: 2.4rem;
  color: var(--maroon);
  margin-bottom: 18px;
}

.pillar p {
  font-size: 1.02rem;
  line-height: 1.6;
  color: #423b34;
  max-width: 34ch;
}

/* ---------- Manifesto ---------- */

.manifesto {
  background: var(--teal);
  color: var(--paper);
  padding: 110px 0;
}

.manifesto-inner {
  text-align: center;
  position: relative;
}

.mono-n {
  display: block;
  font-family: var(--serif);
  font-size: 1.4rem;
  color: #9fcabd;
  margin-bottom: 24px;
}

.manifesto-line {
  font-family: var(--serif);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  line-height: 1.2;
}

.manifesto-line--em {
  color: var(--blue);
}

/* ---------- Signup ---------- */

.signup {
  background: var(--maroon);
  color: var(--paper);
  padding: 110px 0;
}

.signup-inner {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 72px;
  align-items: start;
}

.signup-copy h2 {
  font-size: clamp(1.9rem, 3.4vw, 2.6rem);
  color: var(--blue-soft);
  margin-bottom: 20px;
}

.signup-copy p {
  font-size: 1.05rem;
  line-height: 1.6;
  color: #ecd9d2;
  max-width: 40ch;
}

.signup-form {
  background: var(--paper);
  color: var(--ink);
  padding: 36px;
  border-radius: 3px;
}

.field {
  margin-bottom: 20px;
}

.field label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: #4a423b;
}

.field input {
  width: 100%;
  padding: 12px 14px;
  font-size: 1rem;
  font-family: var(--sans);
  border: 1px solid #cfc9bf;
  border-radius: 2px;
  background: var(--paper);
  color: var(--ink);
}

.field input:focus {
  border-color: var(--teal);
}

.field.has-error input {
  border-color: #b3392a;
}

.field-error {
  color: #b3392a;
  font-size: 0.85rem;
  margin-top: 6px;
}

.form-status {
  margin-top: 16px;
  font-size: 0.95rem;
  min-height: 1.2em;
}

.form-status.is-success { color: var(--teal-dark); }
.form-status.is-error { color: #b3392a; }

/* ---------- Footer ---------- */

.site-footer {
  background: var(--paper);
  padding: 28px 0;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  color: #8a8378;
}

/* ---------- Responsive ---------- */

@media (max-width: 860px) {
  .pillars .wrap {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .signup-inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .hero { padding: 72px 0 88px; }
  .pillars, .manifesto, .signup { padding: 72px 0; }
}

@media (max-width: 480px) {
  .wrap { padding: 0 20px; }
  .signup-form { padding: 26px; }
}

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