:root {
  --green: #0a6340;
  --green-dark: #06301f;
  --green-soft: #e6f3ec;
  --ink: #14201a;
  --ink-2: #33433b;
  --line: #d6e2db;
  --paper: #ffffff;
  --bg: #f4f8f5;
  --radius: 16px;
  font-family: "Segoe UI", system-ui, -apple-system, Roboto, Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); line-height: 1.5; }
a { color: var(--green); }
img, video { max-width: 100%; display: block; }

.topbar {
  display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  padding: 14px clamp(16px, 4vw, 48px); background: var(--paper); border-bottom: 1px solid var(--line);
  position: sticky; top: 0; z-index: 10;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 20px; color: var(--ink); text-decoration: none; }
.mark { display: inline-grid; place-items: center; width: 36px; height: 36px; border-radius: 10px; color: #fff; font-weight: 800; background: linear-gradient(145deg, #138a5a, var(--green) 60%, #074a30); }
nav { display: flex; align-items: center; gap: clamp(10px, 2vw, 22px); flex-wrap: wrap; }
nav a { text-decoration: none; color: var(--ink-2); font-weight: 600; }
nav a:hover { color: var(--green); }
.nav-cta { background: var(--green); color: #fff !important; padding: 8px 16px; border-radius: 999px; }

main { max-width: 1160px; margin: 0 auto; padding: 0 clamp(16px, 4vw, 40px); }
section { padding: clamp(36px, 6vw, 72px) 0; }
h1 { font-size: clamp(32px, 5vw, 52px); line-height: 1.1; margin: 8px 0 16px; letter-spacing: -0.01em; }
h2 { font-size: clamp(26px, 3.4vw, 36px); margin: 0 0 12px; }
h3 { margin: 14px 0 6px; font-size: 20px; }
.eyebrow { color: var(--green); font-weight: 700; margin: 0; text-transform: uppercase; letter-spacing: 0.06em; font-size: 14px; }
.lead { font-size: clamp(17px, 1.6vw, 20px); color: var(--ink-2); margin: 0 0 18px; }
.section-lead { font-size: 18px; color: var(--ink-2); margin: 0 0 22px; }
.small { font-size: 14px; color: var(--ink-2); }

.hero { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(300px, 1fr); gap: clamp(24px, 5vw, 56px); align-items: center; }
.hero-points { padding-left: 20px; margin: 0; font-size: 17px; color: var(--ink-2); }
.hero-points li { margin-bottom: 6px; }

.signup-card, .welcome-card {
  background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius);
  padding: clamp(20px, 3vw, 32px); box-shadow: 0 18px 50px rgba(6, 48, 31, 0.12);
}
.signup-card h2 { font-size: 26px; }
.card-note { color: var(--ink-2); margin: 0 0 16px; }
form label { display: block; font-weight: 600; margin: 0 0 6px; }
input[type="email"] { width: 100%; font: inherit; font-size: 17px; padding: 12px 14px; border: 1.5px solid var(--line); border-radius: 10px; margin-bottom: 14px; }
input[type="email"]:focus { outline: 3px solid rgba(10, 99, 64, 0.25); border-color: var(--green); }
label.check { display: flex; gap: 10px; align-items: flex-start; font-weight: 400; color: var(--ink-2); margin-bottom: 18px; cursor: pointer; }
label.check input { margin-top: 4px; width: 18px; height: 18px; accent-color: var(--green); }
.primary, .secondary {
  display: inline-block; font: inherit; font-weight: 700; font-size: 17px; border-radius: 10px; padding: 13px 22px;
  cursor: pointer; text-decoration: none; text-align: center; border: 2px solid var(--green);
}
.primary { background: var(--green); color: #fff; }
.primary:hover { background: #08583a; }
.primary:disabled { opacity: 0.6; cursor: wait; }
.secondary { background: #fff; color: var(--green); }
.big { font-size: 18px; padding: 15px 26px; }
form .primary { width: 100%; }
.form-message { min-height: 1.5em; margin: 12px 0 0; color: var(--green); font-weight: 600; }
.form-message.bad { color: #a12a1c; }
.link-button { background: none; border: none; color: var(--green); font: inherit; font-weight: 600; cursor: pointer; padding: 0; text-decoration: underline; }
.small-links { margin: 14px 0 0; color: var(--ink-2); }
.dev-link { background: #fff7d6; border: 1px solid #e8d48a; padding: 10px 12px; border-radius: 8px; }

.tour video { width: 100%; border-radius: var(--radius); border: 1px solid var(--line); background: #000; box-shadow: 0 18px 50px rgba(6, 48, 31, 0.15); }

.feature-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 22px; margin-top: 18px; }
.feature-grid article { background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; }
.feature-grid img { border-radius: 10px; border: 1px solid var(--line); aspect-ratio: 16 / 9; object-fit: cover; width: 100%; }
.feature-grid p { margin: 0; color: var(--ink-2); }
.feature-grid .more { background: var(--green-soft); }
.feature-grid .more ul { margin: 6px 0 0; padding-left: 20px; color: var(--ink-2); }

.privacy { max-width: 820px; }
.privacy p { font-size: 17px; color: var(--ink-2); }

footer { text-align: center; padding: 30px 16px 40px; color: var(--ink-2); border-top: 1px solid var(--line); background: var(--paper); }

.welcome { max-width: 900px; padding-top: clamp(28px, 6vw, 64px); padding-bottom: 64px; }
.welcome-card h1 { font-size: clamp(28px, 4vw, 42px); }
.welcome-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 18px; }
.welcome-card video { width: 100%; border-radius: 12px; background: #000; }

@media (max-width: 820px) {
  .hero { grid-template-columns: 1fr; }
}