/* greenmerge — shared design system (SPEC-0017). Extends the SPEC-0011 placeholder's dark-green
   identity (custom merge mark, terminal-adjacent green) across the full site rather than starting
   over — same palette, now with semantic tokens for the estimate-vs-measured distinction that's the
   whole pitch, and a monospace accent for numbers/data. */

:root {
  --bg: #06100b;
  --bg-2: #081a11;
  --card: rgba(255, 255, 255, 0.03);
  --card-border: rgba(93, 231, 150, 0.14);
  --green: #3ddc84;
  --green-bright: #63f0a4;
  --green-deep: #0f9457;
  --amber: #e8b74d;
  --amber-bright: #f7d27a;
  --amber-deep: #8a5a12;
  --text: #e8f4ec;
  --muted: #7c968a;
  --border: rgba(93, 231, 150, 0.16);
  --focus: rgba(61, 220, 132, 0.55);
  --danger: #ff8a80;
  --sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  --measure: min(760px, 100% - 48px);
}

* { box-sizing: border-box; }
html, body { height: 100%; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  font-family: var(--sans);
  color: var(--text);
  background:
    radial-gradient(1100px 520px at 50% -8%, rgba(61, 220, 132, 0.14), transparent 60%),
    radial-gradient(760px 480px at 50% 118%, rgba(15, 148, 87, 0.1), transparent 62%),
    linear-gradient(180deg, var(--bg), var(--bg-2));
  background-attachment: fixed;
  min-height: 100%;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  line-height: 1.55;
}

a { color: var(--green-bright); text-decoration-color: rgba(99, 240, 164, 0.4); }
a:hover { text-decoration-color: currentColor; }

::selection { background: rgba(61, 220, 132, 0.28); color: var(--text); }

.wrap { max-width: 920px; margin: 0 auto; padding: 0 24px; }
.prose { max-width: var(--measure); margin: 0 auto; }

/* --- nav --- */
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  max-width: 920px;
  margin: 0 auto;
}
.nav-mark { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.nav-mark svg { width: 26px; height: 26px; }
.nav-wordmark { font-weight: 650; letter-spacing: -0.02em; color: var(--text); font-size: 1.05rem; }
.nav-wordmark b { color: var(--green-bright); }
.nav-links { display: flex; gap: 22px; font-size: 0.92rem; }
.nav-links a { color: var(--muted); text-decoration: none; }
.nav-links a:hover { color: var(--text); }

/* --- hero --- */
.hero {
  text-align: center;
  padding: 56px 24px 24px;
  max-width: 820px;
  margin: 0 auto;
}
.mark {
  width: 96px;
  height: 96px;
  filter: drop-shadow(0 0 26px rgba(61, 220, 132, 0.4));
  margin-bottom: 18px;
  animation: rise 900ms cubic-bezier(.2, .7, .2, 1) both;
}
@keyframes rise { from { opacity: 0; transform: translateY(10px) scale(.96); } to { opacity: 1; transform: none; } }
@media (prefers-reduced-motion: reduce) { .mark { animation: none; } }

h1 {
  font-size: clamp(2rem, 5.4vw, 2.9rem);
  font-weight: 650;
  letter-spacing: -0.02em;
  line-height: 1.12;
  margin: 0 0 18px;
  text-wrap: balance;
}
h1 b, .accent { color: var(--green-bright); font-weight: inherit; }

.lede {
  font-size: clamp(1.05rem, 2.4vw, 1.2rem);
  color: var(--text);
  opacity: 0.92;
  max-width: 640px;
  margin: 0 auto 30px;
}

.cta-row { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 22px;
  border-radius: 11px;
  font-weight: 650;
  font-size: 0.98rem;
  text-decoration: none;
  cursor: pointer;
  border: 0;
  transition: transform .08s ease, filter .15s ease;
}
.btn-primary { background: linear-gradient(180deg, var(--green-bright), var(--green-deep)); color: #04120a; }
.btn-primary:hover { filter: brightness(1.06); }
.btn-primary:active { transform: translateY(1px); }
.btn-ghost { background: transparent; color: var(--text); border: 1px solid var(--border); }
.btn-ghost:hover { border-color: var(--green); color: var(--green-bright); }

/* --- sections --- */
section { padding: 56px 0; }
section.tight { padding: 36px 0; }
.section-head { max-width: var(--measure); margin: 0 auto 28px; }
.eyebrow {
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--green);
  opacity: 0.85;
  margin: 0 0 10px;
}
h2 {
  font-size: clamp(1.5rem, 3.4vw, 1.9rem);
  font-weight: 650;
  letter-spacing: -0.01em;
  margin: 0 0 14px;
  text-wrap: balance;
}
h3 { font-size: 1.15rem; font-weight: 650; margin: 28px 0 10px; }
p { margin: 0 0 16px; }
.dim { color: var(--muted); }

hr.rule {
  border: 0;
  border-top: 1px solid var(--border);
  max-width: var(--measure);
  margin: 0 auto;
}

/* --- steps --- */
.steps {
  max-width: var(--measure);
  margin: 0 auto;
  display: grid;
  gap: 18px;
}
.step {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 16px;
  padding: 22px 0;
  border-top: 1px solid var(--border);
}
.step:first-child { border-top: 0; padding-top: 0; }
.step-n {
  font-family: var(--mono);
  font-size: 0.95rem;
  color: var(--green-bright);
  border: 1px solid var(--card-border);
  border-radius: 999px;
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.step h3 { margin: 2px 0 8px; font-size: 1.08rem; }
.step p { margin: 0; color: var(--text); opacity: 0.92; }
.step .price { font-family: var(--mono); color: var(--green); font-size: 0.85rem; }

/* --- cards / grid --- */
.grid { display: grid; gap: 18px; max-width: var(--measure); margin: 0 auto; }
@media (min-width: 640px) { .grid.cols-3 { grid-template-columns: repeat(3, 1fr); } }
.card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 14px;
  padding: 22px;
}
.card h3 { margin-top: 0; }
.card .figure { font-family: var(--mono); font-size: 1.6rem; font-weight: 600; }
.card .figure.measured { color: var(--green-bright); }
.card .figure.estimated { color: var(--amber-bright); }
.card .tag {
  display: inline-block;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 3px 9px;
  border-radius: 999px;
  margin-bottom: 10px;
}
.tag.measured { background: rgba(61, 220, 132, 0.14); color: var(--green-bright); }
.tag.estimated { background: rgba(232, 183, 77, 0.14); color: var(--amber-bright); }
.tag.blocked { background: rgba(124, 150, 138, 0.18); color: var(--muted); }
.card p { color: var(--muted); font-size: 0.94rem; margin: 8px 0 14px; }
.card a { font-size: 0.92rem; font-weight: 600; }

/* --- tables --- */
.table-wrap { max-width: var(--measure); margin: 0 auto; overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 0.92rem; }
th, td { text-align: left; padding: 12px 14px; border-bottom: 1px solid var(--border); vertical-align: top; }
th { color: var(--muted); font-weight: 600; font-size: 0.82rem; text-transform: uppercase; letter-spacing: 0.04em; }
td.num, th.num { font-family: var(--mono); white-space: nowrap; }
tr.highlight td { background: rgba(61, 220, 132, 0.06); }
td strong { color: var(--green-bright); }

/* --- proof / callout --- */
.callout {
  max-width: var(--measure);
  margin: 0 auto;
  border-left: 3px solid var(--green);
  padding: 4px 0 4px 20px;
}
.callout.amber { border-left-color: var(--amber); }
blockquote {
  max-width: var(--measure);
  margin: 24px auto;
  padding: 18px 22px;
  border-left: 3px solid var(--green);
  background: rgba(61, 220, 132, 0.05);
  border-radius: 0 10px 10px 0;
  font-size: 1.05rem;
}
blockquote p:last-child { margin-bottom: 0; }
code { font-family: var(--mono); font-size: 0.9em; background: rgba(255, 255, 255, 0.05); padding: 2px 6px; border-radius: 5px; }

/* --- form --- */
.form-card {
  max-width: 480px;
  margin: 0 auto;
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 16px;
  padding: 28px;
}
form { display: flex; flex-direction: column; gap: 12px; }
label { font-size: 0.85rem; color: var(--muted); margin-bottom: -6px; }
input[type="text"], input[type="email"], textarea {
  width: 100%;
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.035);
  color: var(--text);
  font-size: 0.98rem;
  font-family: inherit;
  outline: none;
  transition: border-color .15s, box-shadow .15s;
}
textarea { resize: vertical; min-height: 76px; }
input::placeholder, textarea::placeholder { color: var(--muted); }
input:focus, textarea:focus { border-color: var(--green); box-shadow: 0 0 0 3px var(--focus); }
.cf-turnstile { display: flex; justify-content: center; min-height: 65px; }
.micro { margin: 2px 0 0; font-size: 0.8rem; color: var(--muted); }
.status { margin: 6px 0 0; font-size: 0.92rem; min-height: 1.2em; }
.status.ok { color: var(--green-bright); }
.status.err { color: var(--danger); }
.done .field, .done .cf-turnstile, .done .micro { display: none; }

/* --- footer --- */
footer {
  padding: 32px 24px 40px;
  text-align: center;
  color: var(--muted);
  font-size: 0.8rem;
  letter-spacing: 0.02em;
}
footer a { color: var(--muted); }
footer nav { display: flex; gap: 18px; justify-content: center; margin-bottom: 12px; }

/* --- case-study specific --- */
.cs-header { max-width: var(--measure); margin: 0 auto 8px; }
.cs-verdict {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 0.85rem;
  padding: 6px 12px;
  border-radius: 999px;
  margin-bottom: 20px;
}
.cs-verdict.verified { background: rgba(61, 220, 132, 0.12); color: var(--green-bright); border: 1px solid rgba(61, 220, 132, 0.3); }
.cs-verdict.blocked { background: rgba(124, 150, 138, 0.14); color: var(--muted); border: 1px solid var(--border); }
.cs-verdict.discounted { background: rgba(232, 183, 77, 0.12); color: var(--amber-bright); border: 1px solid rgba(232, 183, 77, 0.3); }