/* ---------- Custom properties ---------- */
:root {
  --moss-900: #1f2d1f;
  --moss-800: #274d2e;
  --moss-700: #355c3a;
  --moss-600: #4b7f52;
  --moss-500: #6b9e6e;
  --moss-100: #e8f0e6;

  --bark-900: #2e2117;
  --bark-700: #4a3524;
  --bark-500: #7a5c3e;
  --bark-300: #b99b74;
  --sand-100: #f6f1e7;

  --ink: #24291f;
  --paper: #fbf8f2;

  --radius-lg: 20px;
  --radius-md: 12px;
  --shadow-soft: 0 10px 30px rgba(31, 45, 31, 0.12);
  --shadow-tight: 0 4px 14px rgba(31, 45, 31, 0.1);

  --font-display: 'Fraunces', Georgia, serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

/* ---------- Reset ---------- */
* , *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

a { color: inherit; text-decoration: none; }

h1, h2, h3 {
  font-family: var(--font-display);
  color: var(--moss-900);
  margin: 0 0 0.5em;
  line-height: 1.15;
}

p { margin: 0 0 1em; }

.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

.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;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background-color 0.18s ease, color 0.18s ease;
}

.btn-primary {
  background: var(--moss-700);
  color: var(--sand-100);
  box-shadow: var(--shadow-tight);
}

.btn-primary:hover {
  background: var(--moss-800);
  transform: translateY(-2px);
  box-shadow: var(--shadow-soft);
}

.btn-ghost {
  background: transparent;
  color: var(--moss-800);
  border-color: var(--moss-600);
}

.btn-ghost:hover {
  background: var(--moss-100);
  transform: translateY(-2px);
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(251, 248, 242, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(122, 92, 62, 0.15);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  padding-bottom: 16px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--moss-900);
}

.logo-mark { font-size: 1.5rem; }

.nav {
  display: flex;
  align-items: center;
  gap: 32px;
  font-weight: 500;
}

.nav a {
  color: var(--bark-700);
  position: relative;
  padding: 4px 0;
  transition: color 0.15s ease;
}

.nav a:not(.nav-cta)::after {
  content: '';
  position: absolute;
  left: 0; right: 100%;
  bottom: -2px;
  height: 2px;
  background: var(--moss-600);
  transition: right 0.2s ease;
}

.nav a:not(.nav-cta):hover { color: var(--moss-800); }
.nav a:not(.nav-cta):hover::after { right: 0; }

.nav-cta {
  background: var(--moss-700);
  color: var(--sand-100) !important;
  padding: 10px 20px;
  border-radius: 999px;
  transition: background-color 0.18s ease, transform 0.18s ease;
}

.nav-cta:hover {
  background: var(--moss-800);
  transform: translateY(-1px);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--moss-900);
  border-radius: 2px;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  overflow: hidden;
  padding: 96px 0 120px;
  background: linear-gradient(180deg, var(--moss-100) 0%, var(--paper) 100%);
}

.hero-inner {
  position: relative;
  z-index: 2;
  max-width: 720px;
}

.eyebrow {
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 0.78rem;
  color: var(--bark-500);
  margin-bottom: 18px;
}

.hero h1 {
  font-size: clamp(2.6rem, 6vw, 4.2rem);
  margin-bottom: 20px;
}

.highlight { color: var(--moss-600); }

.hero-sub {
  font-size: 1.15rem;
  color: var(--bark-700);
  max-width: 520px;
  margin-bottom: 36px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-blob {
  position: absolute;
  top: -120px;
  right: -160px;
  width: 560px;
  height: 560px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, var(--moss-500), var(--moss-800) 70%);
  opacity: 0.18;
  z-index: 1;
}

/* ---------- Sections ---------- */
.section { padding: 96px 0; }

.section-title {
  font-size: clamp(1.9rem, 4vw, 2.6rem);
  text-align: center;
}

.section-sub {
  text-align: center;
  color: var(--bark-500);
  max-width: 480px;
  margin: 0 auto 56px;
}

/* About */
.about { background: var(--sand-100); }

.about-inner {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 56px;
  align-items: center;
}

.about-copy h2 { font-size: clamp(1.8rem, 4vw, 2.4rem); }
.about-copy p { color: var(--bark-700); font-size: 1.05rem; }

.about-card {
  background: var(--moss-800);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  display: flex;
  flex-direction: column;
  gap: 28px;
  box-shadow: var(--shadow-soft);
}

.stat { display: flex; flex-direction: column; }

.stat-num {
  font-family: var(--font-display);
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--moss-100);
}

.stat-label {
  color: var(--moss-500);
  font-size: 0.9rem;
  letter-spacing: 0.02em;
}

/* Features */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 28px;
}

.card {
  background: var(--paper);
  border: 1px solid rgba(122, 92, 62, 0.18);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-soft);
  border-color: var(--moss-500);
}

.card-icon {
  font-size: 1.8rem;
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--moss-100);
  border-radius: 14px;
  margin-bottom: 20px;
}

.card h3 { font-size: 1.2rem; margin-bottom: 10px; }
.card p { color: var(--bark-500); margin: 0; }

/* Pond / signup */
.pond {
  background: var(--moss-800);
  color: var(--moss-100);
  text-align: center;
}

.pond h2 { color: var(--sand-100); }

.pond-inner { max-width: 520px; margin: 0 auto; }
.pond p { color: var(--moss-100); opacity: 0.85; }

.signup-form {
  display: flex;
  gap: 12px;
  margin-top: 28px;
  flex-wrap: wrap;
  justify-content: center;
}

.signup-form input {
  flex: 1 1 260px;
  padding: 14px 18px;
  border-radius: 999px;
  border: 2px solid transparent;
  font-family: var(--font-body);
  font-size: 0.95rem;
  outline: none;
  background: var(--sand-100);
  color: var(--ink);
  transition: box-shadow 0.15s ease;
}

.signup-form input:focus {
  box-shadow: 0 0 0 3px var(--moss-500);
}

.form-note {
  margin-top: 16px;
  min-height: 1.4em;
  font-size: 0.9rem;
  color: var(--moss-100);
}

/* Contact */
.contact {
  text-align: center;
  max-width: 560px;
  margin: 0 auto;
}

.contact p { color: var(--bark-500); }

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid rgba(122, 92, 62, 0.18);
  padding: 28px 0;
  background: var(--sand-100);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.88rem;
  color: var(--bark-500);
}

.back-to-top { font-weight: 600; color: var(--moss-700); }
.back-to-top:hover { color: var(--moss-900); }

/* ---------- Scroll-reveal ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .about-inner { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--paper);
    flex-direction: column;
    align-items: flex-start;
    padding: 20px 24px 28px;
    gap: 18px;
    border-bottom: 1px solid rgba(122, 92, 62, 0.15);
    box-shadow: var(--shadow-soft);
    transform: translateY(-8px);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s;
  }

  .nav.is-open {
    opacity: 1;
    transform: translateY(0);
    visibility: visible;
  }

  .nav-toggle { display: flex; }

  .nav-toggle.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-toggle.is-open span:nth-child(2) { opacity: 0; }
  .nav-toggle.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

  .hero { padding: 64px 0 80px; }
  .section { padding: 64px 0; }
}