/* DigiSalvage — Industrial Digital Sovereignty */
:root {
  --bg: #1a1a1a;
  --bg-raised: #232323;
  --bg-inset: #141414;
  --accent: #ff5722;
  --accent-dim: #c73e12;
  --green: #39ff14;
  --text: #ffffff;
  --text-dim: #a8a8a8;
  --border: #333333;
  --mono: "JetBrains Mono", "SF Mono", "Fira Code", Menlo, Consolas, monospace;
  --sans: "Inter", -apple-system, "Segoe UI", Helvetica, Arial, sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container { max-width: 1100px; margin: 0 auto; padding: 0 24px; }

/* ---------- Header ---------- */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(26, 26, 26, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text);
  font-weight: 800;
  font-size: 1.15rem;
  letter-spacing: 0.04em;
}

.nav-brand svg { height: 32px; width: auto; }
.nav-brand .accent { color: var(--accent); }

.nav-links { display: flex; gap: 28px; list-style: none; }

.nav-links a {
  color: var(--text-dim);
  text-decoration: none;
  font-size: 0.9rem;
  font-family: var(--mono);
  transition: color 0.15s;
}

.nav-links a:hover { color: var(--accent); }

.nav-cta {
  background: var(--accent);
  color: #fff !important;
  padding: 8px 18px;
  font-weight: 600;
  border-radius: 3px;
}

.nav-cta:hover { background: var(--accent-dim); }

/* ---------- Hero ---------- */
.hero {
  padding: 96px 0 80px;
  border-bottom: 1px solid var(--border);
  background:
    radial-gradient(ellipse 800px 400px at 70% 10%, rgba(255, 87, 34, 0.07), transparent),
    repeating-linear-gradient(0deg, transparent, transparent 39px, rgba(255,255,255,0.015) 40px),
    repeating-linear-gradient(90deg, transparent, transparent 39px, rgba(255,255,255,0.015) 40px);
}

.hero-kicker {
  font-family: var(--mono);
  color: var(--green);
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 20px;
}

.hero h1 {
  font-size: clamp(2.2rem, 5.5vw, 3.8rem);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -0.02em;
  max-width: 850px;
}

.hero h1 em {
  font-style: normal;
  color: var(--accent);
}

.hero-sub {
  margin-top: 24px;
  font-size: 1.2rem;
  color: var(--text-dim);
  max-width: 640px;
}

.hero-actions { margin-top: 40px; display: flex; gap: 16px; flex-wrap: wrap; }

.btn {
  display: inline-block;
  padding: 14px 28px;
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none;
  border-radius: 3px;
  transition: all 0.15s;
}

.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-dim); transform: translateY(-1px); }

.btn-ghost {
  border: 1px solid var(--border);
  color: var(--text);
  font-family: var(--mono);
  font-weight: 500;
}
.btn-ghost:hover { border-color: var(--green); color: var(--green); }

.hero-stats {
  margin-top: 64px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}

.stat {
  background: var(--bg-inset);
  padding: 24px;
}

.stat .num {
  font-family: var(--mono);
  font-size: 2rem;
  font-weight: 700;
  color: var(--green);
}

.stat .label { color: var(--text-dim); font-size: 0.85rem; margin-top: 4px; }

/* ---------- Sections ---------- */
section { padding: 80px 0; border-bottom: 1px solid var(--border); }

.section-kicker {
  font-family: var(--mono);
  color: var(--accent);
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

h2 {
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  font-weight: 800;
  letter-spacing: -0.01em;
  margin-bottom: 16px;
}

.section-intro { color: var(--text-dim); max-width: 640px; margin-bottom: 48px; font-size: 1.05rem; }

/* ---------- ROI Calculator ---------- */
.calc {
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: 4px;
  overflow: hidden;
}

.calc-header {
  background: var(--bg-inset);
  padding: 14px 24px;
  border-bottom: 1px solid var(--border);
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--text-dim);
  display: flex;
  gap: 8px;
  align-items: center;
}

.calc-header .dot { width: 10px; height: 10px; border-radius: 50%; }
.dot-r { background: #ff5f57; } .dot-y { background: #febc2e; } .dot-g { background: #28c840; }

.calc-body { padding: 32px; display: grid; grid-template-columns: 1fr 1fr; gap: 48px; }

.calc-input label {
  display: block;
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--text-dim);
  margin-bottom: 8px;
}

.calc-input .spend-readout {
  font-family: var(--mono);
  font-size: 2.6rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 16px;
}

.calc-input .spend-readout span { color: var(--text-dim); font-size: 1.2rem; }

input[type="range"] {
  width: 100%;
  appearance: none;
  -webkit-appearance: none;
  height: 6px;
  background: var(--bg-inset);
  border: 1px solid var(--border);
  border-radius: 3px;
  outline: none;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 22px;
  height: 22px;
  background: var(--accent);
  border-radius: 3px;
  cursor: pointer;
  border: 2px solid #fff;
}

input[type="range"]::-moz-range-thumb {
  width: 22px;
  height: 22px;
  background: var(--accent);
  border-radius: 3px;
  cursor: pointer;
  border: 2px solid #fff;
}

.range-labels {
  display: flex;
  justify-content: space-between;
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--text-dim);
  margin-top: 8px;
}

.calc-results { display: flex; flex-direction: column; gap: 16px; }

.result-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 14px 18px;
  background: var(--bg-inset);
  border: 1px solid var(--border);
  border-radius: 3px;
}

.result-row .k { font-family: var(--mono); font-size: 0.82rem; color: var(--text-dim); }
.result-row .v { font-family: var(--mono); font-size: 1.25rem; font-weight: 700; }

.v-neutral { color: var(--text); }
.v-bad { color: var(--accent); }
.v-good { color: var(--green); }

.result-payback {
  border-color: var(--green);
  background: rgba(57, 255, 20, 0.05);
}

.calc-note {
  padding: 16px 32px 24px;
  font-size: 0.8rem;
  color: var(--text-dim);
  font-family: var(--mono);
  border-top: 1px solid var(--border);
}

/* ---------- Roadmap ---------- */
.roadmap { display: flex; flex-direction: column; gap: 0; }

.phase {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 24px;
  padding: 28px 0;
  border-left: 2px solid var(--border);
  padding-left: 32px;
  margin-left: 20px;
  position: relative;
}

.phase::before {
  content: "";
  position: absolute;
  left: -12px;
  top: 36px;
  width: 22px;
  height: 22px;
  background: var(--bg);
  border: 2px solid var(--accent);
  border-radius: 50%;
}

.phase.done::before { background: var(--green); border-color: var(--green); }

.phase-num {
  font-family: var(--mono);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--accent);
}

.phase h3 { font-size: 1.2rem; margin-bottom: 8px; }
.phase p { color: var(--text-dim); font-size: 0.95rem; max-width: 560px; }

.phase .tools {
  margin-top: 12px;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.tag {
  font-family: var(--mono);
  font-size: 0.72rem;
  padding: 4px 10px;
  border: 1px solid var(--border);
  border-radius: 2px;
  color: var(--green);
  background: var(--bg-inset);
}

/* ---------- Mapping table ---------- */
.map-table { width: 100%; border-collapse: collapse; font-size: 0.95rem; }

.map-table th {
  text-align: left;
  font-family: var(--mono);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-dim);
  padding: 12px 16px;
  border-bottom: 2px solid var(--accent);
}

.map-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
}

.map-table td:first-child { color: var(--text-dim); }
.map-table td:last-child { font-family: var(--mono); color: var(--green); }

/* ---------- Blog cards ---------- */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.blog-card {
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 28px;
  text-decoration: none;
  color: var(--text);
  transition: border-color 0.15s, transform 0.15s;
  display: block;
}

.blog-card:hover { border-color: var(--accent); transform: translateY(-2px); }

.blog-card .cat {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.blog-card h3 { margin: 12px 0; font-size: 1.15rem; line-height: 1.35; }
.blog-card p { color: var(--text-dim); font-size: 0.9rem; }
.blog-card .read { margin-top: 16px; font-family: var(--mono); font-size: 0.8rem; color: var(--green); }

/* ---------- CTA ---------- */
.cta-final { text-align: center; border-bottom: none; }
.cta-final h2 { max-width: 700px; margin: 0 auto 16px; }
.cta-final p { color: var(--text-dim); max-width: 520px; margin: 0 auto 32px; }

/* ---------- Footer ---------- */
footer {
  border-top: 1px solid var(--border);
  padding: 40px 0;
  color: var(--text-dim);
  font-size: 0.85rem;
  font-family: var(--mono);
}

.footer-inner { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 16px; }
footer a { color: var(--text-dim); text-decoration: none; }
footer a:hover { color: var(--accent); }

/* ---------- Article pages ---------- */
.article { max-width: 760px; margin: 0 auto; padding: 64px 24px; }
.article h1 { font-size: clamp(1.8rem, 4vw, 2.6rem); line-height: 1.15; margin-bottom: 16px; }
.article .meta { font-family: var(--mono); font-size: 0.82rem; color: var(--text-dim); margin-bottom: 40px; }
.article h2 { font-size: 1.5rem; margin: 40px 0 16px; }
.article h3 { font-size: 1.15rem; margin: 28px 0 12px; color: var(--green); }
.article p { margin-bottom: 18px; color: #d8d8d8; }
.article ul, .article ol { margin: 0 0 18px 24px; color: #d8d8d8; }
.article li { margin-bottom: 8px; }
.article code {
  font-family: var(--mono);
  font-size: 0.85em;
  background: var(--bg-inset);
  border: 1px solid var(--border);
  padding: 2px 6px;
  border-radius: 2px;
  color: var(--green);
}
.article pre {
  background: var(--bg-inset);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 20px;
  overflow-x: auto;
  margin-bottom: 20px;
}
.article pre code { border: none; padding: 0; background: none; }
.article blockquote {
  border-left: 3px solid var(--accent);
  padding-left: 20px;
  margin-bottom: 18px;
  color: var(--text-dim);
  font-style: italic;
}
.article table { width: 100%; border-collapse: collapse; margin-bottom: 20px; font-size: 0.9rem; }
.article th { text-align: left; padding: 10px 14px; border-bottom: 2px solid var(--accent); font-family: var(--mono); font-size: 0.8rem; }
.article td { padding: 10px 14px; border-bottom: 1px solid var(--border); }

/* ---------- Responsive ---------- */
@media (max-width: 800px) {
  .calc-body { grid-template-columns: 1fr; gap: 32px; }
  .nav-links { display: none; }
  .hero { padding: 64px 0 56px; }
  section { padding: 56px 0; }
}