:root {
  --bg: #ffffff;
  --bg-soft: #f7f7f7;
  --ink: #0b0b0b;
  --ink-soft: #5c5c5c;
  --accent: #0b5a3c;
  --accent-dark: #08452f;
  --line: #e8e8e8;
  --card: #ffffff;
}

html[data-theme="dark"] {
  --bg: radial-gradient(1200px 600px at 20% -10%, rgba(46, 160, 67, 0.14), transparent 60%), #0d1117;
  --bg-soft: #151a21;
  --ink: #eef2f6;
  --ink-soft: #a3abb5;
  --accent: #3ad07f;
  --accent-dark: #2ab76a;
  --line: #2a2f36;
  --card: #10151b;
}
html[data-theme="dark"] .df-badge {
  border-color: #704015;
  background: #241508;
  color: #f0c18f;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }

body {
  font-family: "Sofia Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.6;
}

.nav {
  width: min(1120px, 92%);
  margin: 0 auto;
  padding: 1.6rem 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  color: var(--ink);
  text-decoration: none;
  font-weight: 600;
  letter-spacing: 0.2px;
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
}

.logo-mark { width: 64px; height: auto; color: var(--accent); }
.logo-text { font-weight: 600; }
.tm { font-size: 0.7rem; vertical-align: super; color: var(--accent-dark); }

.nav-links {
  list-style: none; margin: 0; padding: 0; display: flex; gap: 1.2rem;
}

.nav-links a {
  text-decoration: none; color: var(--ink-soft); font-weight: 600; position: relative;
}

.nav-links a.active::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -6px; height: 2px; background: var(--accent);
}

.nav-actions { display: flex; align-items: center; gap: 0.6rem; }

.lang-switch { display: inline-flex; border: 1px solid var(--line); border-radius: 999px; overflow: hidden; }
.lang-btn { background: var(--bg-soft); border: none; padding: 0.4rem 0.7rem; font-size: 0.75rem; color: var(--ink-soft); cursor: pointer; }
.lang-btn.active { background: var(--accent); color: #fff; }

.theme-toggle { border: 1px solid var(--line); border-radius: 999px; padding: 0.4rem 0.7rem; background: var(--bg-soft); color: var(--ink); cursor: pointer; }
.nav-toggle { display: none; border: 1px solid var(--line); border-radius: 8px; padding: 0.4rem 0.7rem; background: var(--bg-soft); }

.hero { padding-bottom: 3.5rem; }
.hero-grid { width: min(1120px, 92%); margin: 3rem auto 3.5rem; display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 2.2rem; align-items: center; }
.page-hero { padding-bottom: 2.5rem; }
.page-head { width: min(980px, 92%); margin: 2.4rem auto 2rem; }

.eyebrow { text-transform: uppercase; letter-spacing: 1.2px; font-size: 0.72rem; font-weight: 600; color: var(--accent-dark); }

h1, h2, h3 { font-family: "Sofia Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; line-height: 1.1; margin-top: 0; }

h1 { font-size: clamp(2.2rem, 4.2vw, 3.8rem); max-width: 860px; margin-bottom: 1rem; }
.hero-text { max-width: 720px; color: var(--ink-soft); font-size: 1.05rem; }
.micro-links {
  margin-top: 0.6rem;
  font-size: 0.9rem;
  color: var(--ink-soft);
}
.micro-links a {
  color: var(--accent-dark);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}
.micro-links a:hover {
  border-bottom-color: var(--accent-dark);
}
.df-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  border: 1px solid #f0c18f;
  background: #fff6ea;
  color: #a25a10;
  font-weight: 700;
  font-size: 0.8rem;
  margin-bottom: 0.8rem;
}
.df-badge::before { content: "🌱"; font-size: 0.9rem; }

.hero-bullets { margin-top: 0.8rem; display: flex; gap: 0.8rem; flex-wrap: wrap; font-size: 0.9rem; color: var(--ink-soft); }

.cta-row { margin-top: 1.2rem; display: flex; gap: 0.6rem; flex-wrap: wrap; }
.btn { display: inline-block; border-radius: 999px; padding: 0.7rem 1.1rem; font-weight: 600; text-decoration: none; transition: all 0.2s ease; }
.btn-primary { background: var(--accent); color: #fff; border: 1px solid var(--accent); box-shadow: 0 8px 20px rgba(11, 90, 60, 0.18); }
.btn-primary:hover { background: var(--accent-dark); }
.btn-ghost { border: 1px solid var(--line); color: var(--ink); background: var(--bg-soft); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent-dark); }

.hero-visual { min-height: 280px; border-radius: 16px; border: 1px solid var(--line); background: var(--bg-soft); display: grid; place-items: center; text-align: center; padding: 2rem; position: relative; overflow: hidden; }
.mono-mark { font-size: 2.8rem; letter-spacing: 0.2rem; color: var(--accent); margin-bottom: 0.6rem; animation: float 3.6s ease-in-out infinite; }
.mono-label { font-size: 0.72rem; letter-spacing: 1px; text-transform: uppercase; color: var(--ink-soft); margin: 0 0 0.4rem; }
.mono-body { margin: 0; font-size: 0.95rem; color: var(--ink-soft); }

.pulse-line { width: 120px; height: 2px; background: var(--accent); opacity: 0.4; border-radius: 999px; margin-top: 1rem; animation: pulse 2.4s ease-in-out infinite; }

.visual-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1.2rem; }
.visual-card { border: 1px solid var(--line); border-radius: 16px; padding: 1rem; background: var(--card); }
.visual-strip { border: 1px solid var(--line); border-radius: 16px; padding: 1rem; background: var(--card); display: grid; gap: 0.6rem; }
.illus { width: 100%; height: 120px; color: var(--accent); }
.draw path, .draw circle { stroke-dasharray: 1; stroke-dashoffset: 1; transition: stroke-dashoffset 1.2s ease; }
.draw.in-view path, .draw.in-view circle { stroke-dashoffset: 0; }

.reveal { opacity: 0; transform: translateY(10px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.in-view { opacity: 1; transform: translateY(0); }

.section { width: min(1120px, 92%); margin: 3.2rem auto; }
.section-head { margin-bottom: 1.2rem; }

.feature-grid, .metrics { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1.2rem; }
.feature-card, .metrics article { border: 1px solid var(--line); border-radius: 16px; padding: 1rem; background: var(--card); transition: transform 0.2s ease; }
.feature-card:hover { transform: translateY(-3px); }

.metric { font-size: 1.25rem; margin: 0 0 0.25rem; }

.contact { display: grid; grid-template-columns: 1.2fr 1fr; gap: 1rem; }
.contact-card { display: grid; gap: 0.9rem; background: var(--card); border-radius: 16px; border: 1px solid var(--line); padding: 1rem; }

label { display: grid; gap: 0.4rem; font-weight: 600; color: var(--ink); }
input, select, textarea { width: 100%; border: 1px solid var(--line); border-radius: 12px; padding: 0.75rem 0.9rem; font: inherit; background: var(--bg-soft); color: var(--ink); }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(11, 90, 60, 0.15); }
textarea { resize: vertical; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 0.9rem; }
.form-note { margin: 0; color: var(--ink-soft); font-size: 0.9rem; }

.footer { width: min(1120px, 92%); margin: 2.5rem auto; padding-top: 1.2rem; border-top: 1px solid var(--line); color: var(--ink-soft); }
.footer-row { display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }

@keyframes pulse { 0%,100% { opacity: 0.3; } 50% { opacity: 0.8; } }
@keyframes float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-4px); } }

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

@media (max-width: 980px) {
  .feature-grid, .metrics, .contact { grid-template-columns: 1fr; }
  .hero-grid { grid-template-columns: 1fr; margin-top: 2rem; }
  .form-row { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .nav-toggle { display: block; }
  .nav-links { position: absolute; top: 68px; right: 4%; width: min(280px, 92%); flex-direction: column; gap: 0; background: var(--card); border: 1px solid var(--line); border-radius: 12px; overflow: hidden; display: none; }
  .nav-links.open { display: flex; }
  .nav-links a { display: block; padding: 0.9rem 1rem; border-bottom: 1px solid var(--line); }
}