/* ── Variables ─────────────────────────────────────────────── */
:root {
  --bg:         #0e0f0c;
  --surface:    #151612;
  --border:     #2a2d24;
  --green:      #7ec850;
  --green-dim:  #4a7a2e;
  --amber:      #c8a83a;
  --text:       #d4d8cc;
  --text-muted: #6b7060;
  --mono:       'Courier New', Courier, monospace;
  --serif:      Georgia, 'Times New Roman', serif;
}

/* ── Reset ──────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--mono);
  font-size: 15px;
  line-height: 1.7;
}
a { color: var(--green); text-decoration: none; }
a:hover { text-decoration: underline; }
img { display: block; max-width: 100%; }

/* ── Layout helpers ─────────────────────────────────────────── */
.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 2rem;
}
.section { padding: 5rem 0; }
.section + .section { border-top: 1px solid var(--border); }

/* ── Terminal prompt decoration ─────────────────────────────── */
.prompt::before {
  content: '$ ';
  color: var(--green);
  user-select: none;
}

/* ── Nav ────────────────────────────────────────────────────── */
nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}
nav .inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 2rem;
  max-width: 960px;
  margin: 0 auto;
}
.logo {
  font-size: 1rem;
  color: var(--green);
  letter-spacing: 0.05em;
}
.logo span { color: var(--text-muted); }
nav ul {
  list-style: none;
  display: flex;
  gap: 2rem;
}
nav ul a {
  color: var(--text-muted);
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
nav ul a:hover { color: var(--green); text-decoration: none; }

/* ── Hero ───────────────────────────────────────────────────── */
.hero {
  padding: 7rem 0 5rem;
  border-bottom: 1px solid var(--border);
}
.hero-eyebrow {
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: 2rem;
}
.hero h1 {
  font-family: var(--serif);
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  font-weight: normal;
  line-height: 1.15;
  color: #fff;
  max-width: 700px;
  margin-bottom: 2rem;
}
.hero h1 em {
  font-style: normal;
  color: var(--green);
}
.hero-body {
  max-width: 580px;
  color: var(--text-muted);
  margin-bottom: 3rem;
  font-size: 0.95rem;
}
.cta-group { display: flex; gap: 1rem; flex-wrap: wrap; }
.btn {
  display: inline-block;
  padding: 0.7rem 1.6rem;
  font-family: var(--mono);
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  border: 1px solid;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}
.btn-primary {
  background: var(--green);
  border-color: var(--green);
  color: var(--bg);
}
.btn-primary:hover { background: #9fe870; border-color: #9fe870; text-decoration: none; }
.btn-ghost {
  background: transparent;
  border-color: var(--border);
  color: var(--text);
}
.btn-ghost:hover { border-color: var(--green); color: var(--green); text-decoration: none; }

/* ── Ticker bar ─────────────────────────────────────────────── */
.ticker {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 0.55rem 0;
  overflow: hidden;
  white-space: nowrap;
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 0.12em;
}
.ticker-inner {
  display: inline-block;
  animation: ticker 28s linear infinite;
}
.ticker-inner span { margin: 0 3rem; }
.ticker-inner .hi { color: var(--green); }
@keyframes ticker {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* ── Section headings ───────────────────────────────────────── */
.section-label {
  font-size: 0.7rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--green-dim);
  margin-bottom: 0.75rem;
}
.section-title {
  font-family: var(--serif);
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: normal;
  color: #fff;
  margin-bottom: 1.25rem;
}
.section-body {
  color: var(--text-muted);
  max-width: 600px;
  font-size: 0.9rem;
}

/* ── Mission ────────────────────────────────────────────────── */
.mission-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  margin-top: 3.5rem;
}
@media (max-width: 640px) { .mission-grid { grid-template-columns: 1fr; gap: 2.5rem; } }
.mission-item h3 {
  color: var(--amber);
  font-family: var(--mono);
  font-size: 0.8rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}
.mission-item p { font-size: 0.9rem; color: var(--text-muted); }

/* ── Services ───────────────────────────────────────────────── */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1px;
  background: var(--border);
  margin-top: 3.5rem;
  border: 1px solid var(--border);
}
.service-card {
  background: var(--surface);
  padding: 2rem;
  transition: background 0.15s;
}
.service-card:hover { background: #1c1f18; }
.service-card .icon {
  font-size: 1.4rem;
  margin-bottom: 1rem;
  line-height: 1;
}
.service-card h3 {
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--green);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}
.service-card p { font-size: 0.85rem; color: var(--text-muted); }

/* ── Software stack ─────────────────────────────────────────── */
.stack-list {
  margin-top: 3rem;
  display: flex;
  flex-direction: column;
  gap: 0;
}
.stack-item {
  display: grid;
  grid-template-columns: 220px 1fr auto;
  align-items: baseline;
  gap: 1.5rem;
  padding: 1.1rem 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.88rem;
}
@media (max-width: 640px) {
  .stack-item { grid-template-columns: 1fr; gap: 0.3rem; }
  .stack-item .tag { display: none; }
}
.stack-item:first-child { border-top: 1px solid var(--border); }
.stack-name { color: #fff; font-weight: bold; }
.stack-desc { color: var(--text-muted); }
.tag {
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--bg);
  background: var(--green-dim);
  padding: 0.2rem 0.6rem;
  white-space: nowrap;
}
.tag.amber { background: #6b5520; color: var(--amber); }

/* ── Business model ─────────────────────────────────────────── */
.model-block {
  margin-top: 3rem;
  border: 1px solid var(--border);
  padding: 2.5rem;
  background: var(--surface);
  position: relative;
}
.model-block::before {
  content: '// model.conf';
  position: absolute;
  top: -0.6rem;
  left: 1.5rem;
  background: var(--surface);
  padding: 0 0.5rem;
  font-size: 0.72rem;
  color: var(--text-muted);
  letter-spacing: 0.08em;
}
.model-steps {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}
.model-step { font-size: 0.85rem; }
.step-num {
  font-size: 2rem;
  color: var(--border);
  line-height: 1;
  margin-bottom: 0.5rem;
  font-family: var(--serif);
}
.model-step h4 { color: var(--green); margin-bottom: 0.4rem; font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.1em; }
.model-step p { color: var(--text-muted); }

/* ── Contact ────────────────────────────────────────────────── */
.contact-wrap {
  margin-top: 3rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
}
@media (max-width: 640px) { .contact-wrap { grid-template-columns: 1fr; } }
.contact-info p { font-size: 0.9rem; color: var(--text-muted); margin-bottom: 1.5rem; }
.contact-line {
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
  margin-bottom: 0.75rem;
  font-size: 0.85rem;
}
.contact-line .label { color: var(--text-muted); min-width: 70px; }
.contact-form { display: flex; flex-direction: column; gap: 1rem; }
.contact-form input,
.contact-form textarea {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  font-family: var(--mono);
  font-size: 0.85rem;
  padding: 0.75rem 1rem;
  width: 100%;
  outline: none;
  transition: border-color 0.15s;
}
.contact-form input:focus,
.contact-form textarea:focus { border-color: var(--green); }
.contact-form textarea { resize: vertical; min-height: 120px; }
.contact-form input::placeholder,
.contact-form textarea::placeholder { color: var(--text-muted); }

/* ── Footer ─────────────────────────────────────────────────── */
footer {
  border-top: 1px solid var(--border);
  padding: 2.5rem 0;
  font-size: 0.8rem;
  color: var(--text-muted);
}
footer .inner {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}
footer .oss-note { color: var(--green-dim); }

/* ── Utility ────────────────────────────────────────────────── */
.mt-sm { margin-top: 0.75rem; }
.mt-md { margin-top: 1.5rem; }