/* ============================================================
   TAS — Biogas Plant Automation & Digital Intelligence
   Scoped under .tas-biogas-page  |  Prefix: tas-biogas-
   No external dependencies. Self-contained CSS. No JS.
   ============================================================ */
.tas-biogas-page,
.tas-biogas-page *,
.tas-biogas-page *::before,
.tas-biogas-page *::after { box-sizing: border-box; }

.tas-biogas-page {
  --tas-biogas-navy: #0B2A4A;
  --tas-biogas-navy-2: #0E335A;
  --tas-biogas-blue: #1E40AF;
  --tas-biogas-blue-2: #2563EB;
  --tas-biogas-cyan: #06B6D4;
  --tas-biogas-red: #DC2626;
  --tas-biogas-green: #16A34A;
  --tas-biogas-amber: #D97706;
  --tas-biogas-ink: #0F172A;
  --tas-biogas-text: #1F2937;
  --tas-biogas-muted: #475569;
  --tas-biogas-line: #E2E8F0;
  --tas-biogas-bg: #FFFFFF;
  --tas-biogas-bg-alt: #F1F5F9;
  --tas-biogas-bg-tint: linear-gradient(180deg, #F8FAFF 0%, #EEF4FF 100%);
  --tas-biogas-shadow: 0 10px 30px rgba(11, 42, 74, 0.08);
  --tas-biogas-shadow-lg: 0 20px 50px rgba(11, 42, 74, 0.14);
  --tas-biogas-radius: 14px;
  --tas-biogas-radius-lg: 18px;

  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--tas-biogas-text);
  line-height: 1.65;
  background: var(--tas-biogas-bg);
  overflow: hidden;
  font-size: 16px;
}
.tas-biogas-page img { max-width: 100%; height: auto; display: block; }
.tas-biogas-page a { color: inherit; text-decoration: none; }
.tas-biogas-page h1, .tas-biogas-page h2, .tas-biogas-page h3, .tas-biogas-page h4 { font-family: inherit; }
.tas-biogas-page ul { margin: 0; padding: 0; list-style: none; }

/* ---------- Wrappers ---------- */
.tas-biogas-section { padding: clamp(56px, 7vw, 96px) clamp(20px, 5vw, 56px); }
.tas-biogas-container { max-width: 1240px; margin: 0 auto; }
.tas-biogas-section--alt { background: var(--tas-biogas-bg-alt); }
.tas-biogas-section--tint { background: var(--tas-biogas-bg-tint); }
.tas-biogas-section--navy {
  background:
    radial-gradient(900px 420px at 90% 0%, rgba(6,182,212,0.16), transparent 60%),
    linear-gradient(135deg, #081f37 0%, var(--tas-biogas-navy) 60%, #0a2747 100%);
  color: #fff;
}

/* ---------- Section heading ---------- */
.tas-biogas-eyebrow {
  display: inline-block; font-size: 12px; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--tas-biogas-blue); font-weight: 700;
  padding-bottom: 10px; position: relative; margin-bottom: 14px;
}
.tas-biogas-eyebrow::after {
  content: ""; position: absolute; left: 0; bottom: 0;
  width: 36px; height: 3px; background: var(--tas-biogas-red); border-radius: 2px;
}
.tas-biogas-section--navy .tas-biogas-eyebrow { color: #9CD8FF; }
.tas-biogas-h2 {
  font-size: clamp(26px, 3.2vw, 40px); line-height: 1.2; color: var(--tas-biogas-navy);
  margin: 0 0 16px; font-weight: 800; letter-spacing: -0.01em;
}
.tas-biogas-section--navy .tas-biogas-h2 { color: #fff; }
.tas-biogas-lead {
  font-size: clamp(15.5px, 1.3vw, 17.5px); color: var(--tas-biogas-muted);
  max-width: 880px; margin: 0 0 36px;
}
.tas-biogas-section--navy .tas-biogas-lead { color: #b9c8dc; }

/* ---------- Buttons ---------- */
.tas-biogas-btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 24px; border-radius: 10px; font-weight: 700; font-size: 15px;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
  line-height: 1.2;
}
.tas-biogas-page a.tas-biogas-btn--primary { background: var(--tas-biogas-red); color: #fff; box-shadow: 0 10px 24px rgba(220,38,38,0.32); }
.tas-biogas-page a.tas-biogas-btn--primary:hover { transform: translateY(-2px); background: #b91c1c; }
.tas-biogas-page a.tas-biogas-btn--ghost { border: 1px solid rgba(255,255,255,0.35); color: #fff; background: rgba(255,255,255,0.06); }
.tas-biogas-page a.tas-biogas-btn--ghost:hover { background: rgba(255,255,255,0.14); }
.tas-biogas-btn span[aria-hidden] { font-size: 18px; line-height: 1; }

/* ---------- HERO ---------- */
.tas-biogas-hero {
  position: relative;
  background:
    radial-gradient(1200px 500px at 85% -10%, rgba(6, 182, 212, 0.18), transparent 60%),
    radial-gradient(900px 500px at 0% 100%, rgba(30, 64, 175, 0.32), transparent 60%),
    linear-gradient(135deg, #081f37 0%, var(--tas-biogas-navy) 50%, #0a2747 100%);
  color: #fff;
  padding: clamp(64px, 8vw, 110px) clamp(20px, 5vw, 56px);
  overflow: hidden;
}
.tas-biogas-hero::before {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 56px 56px; pointer-events: none; opacity: 0.6;
}
.tas-biogas-hero__grid {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: 1fr 1.05fr;
  gap: clamp(32px, 5vw, 64px); align-items: center;
  max-width: 1240px; margin: 0 auto;
}
.tas-biogas-hero__eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.16);
  padding: 8px 14px; border-radius: 999px;
  font-size: 12px; letter-spacing: 0.12em; text-transform: uppercase;
  font-weight: 600; color: #cfe7ff;
}
.tas-biogas-hero__eyebrow::before {
  content: ""; width: 8px; height: 8px; border-radius: 50%; flex: none;
  background: var(--tas-biogas-cyan); box-shadow: 0 0 12px var(--tas-biogas-cyan);
}
.tas-biogas-hero__title {
  font-size: clamp(34px, 4.8vw, 58px); line-height: 1.06; font-weight: 800; letter-spacing: -0.02em;
  margin: 18px 0 14px; color: #fff;
}
.tas-biogas-hero__title span {
  background: linear-gradient(90deg, #ffffff 0%, #9CD8FF 60%, var(--tas-biogas-cyan) 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.tas-biogas-hero__sub { font-size: clamp(17px, 1.6vw, 20px); color: #e2edf8; font-weight: 600; margin: 0 0 14px; }
.tas-biogas-hero__text { font-size: clamp(14.5px, 1.15vw, 16px); color: #b9c8dc; max-width: 600px; margin: 0 0 26px; }
.tas-biogas-hero__ctas { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 26px; }
.tas-biogas-hero__badges { display: flex; flex-wrap: wrap; gap: 10px; }
.tas-biogas-hero__badge {
  display: inline-flex; align-items: center; gap: 8px; padding: 8px 13px; border-radius: 999px;
  background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.16);
  font-size: 13px; color: #e6f0fb; font-weight: 600;
}
.tas-biogas-hero__badge::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--tas-biogas-cyan); }
.tas-biogas-hero__media {
  position: relative; border-radius: var(--tas-biogas-radius-lg); overflow: hidden; margin: 0;
  box-shadow: 0 30px 80px rgba(0,0,0,0.45), 0 0 0 1px rgba(255,255,255,0.08);
}
.tas-biogas-hero__media img { width: 100%; aspect-ratio: 16/10; object-fit: cover; }
.tas-biogas-hero__media::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(180deg, transparent 50%, rgba(8, 31, 55, 0.85));
}
.tas-biogas-hero__tags {
  position: absolute; left: 16px; right: 16px; bottom: 16px; z-index: 2;
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px;
}
.tas-biogas-hero__tag {
  background: rgba(8, 31, 55, 0.72); border: 1px solid rgba(156,216,255,0.28);
  -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px);
  border-radius: 10px; padding: 10px 12px; color: #fff;
}
.tas-biogas-hero__tag strong { display: block; font-size: 13.5px; line-height: 1.25; }
.tas-biogas-hero__tag small { display: block; font-size: 11.5px; color: #9CD8FF; letter-spacing: .04em; margin-top: 2px; }

/* ---------- Value strip ---------- */
.tas-biogas-strip { background: #fff; border-bottom: 1px solid var(--tas-biogas-line); padding: 0 clamp(20px, 5vw, 56px); }
.tas-biogas-strip__grid {
  max-width: 1240px; margin: 0 auto;
  display: grid; grid-template-columns: repeat(5, 1fr);
}
.tas-biogas-strip__item { padding: 26px 20px; border-right: 1px solid var(--tas-biogas-line); position: relative; }
.tas-biogas-strip__item:last-child { border-right: 0; }
.tas-biogas-strip__item::before { content: ""; position: absolute; top: 0; left: 20px; width: 28px; height: 3px; background: var(--tas-biogas-cyan); }
.tas-biogas-strip__item h3 { margin: 0 0 4px; font-size: 15.5px; color: var(--tas-biogas-navy); font-weight: 800; line-height: 1.3; }
.tas-biogas-strip__item p { margin: 0; font-size: 13.5px; color: var(--tas-biogas-muted); line-height: 1.5; }

/* ---------- Grids & cards ---------- */
.tas-biogas-grid { display: grid; gap: 22px; }
.tas-biogas-grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.tas-biogas-grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.tas-biogas-grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.tas-biogas-card {
  background: #fff; border: 1px solid var(--tas-biogas-line); border-radius: var(--tas-biogas-radius);
  padding: clamp(20px, 2.2vw, 26px); box-shadow: var(--tas-biogas-shadow);
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.tas-biogas-card:hover { transform: translateY(-3px); box-shadow: var(--tas-biogas-shadow-lg); border-color: #cfe0ff; }
.tas-biogas-card__icon {
  width: 44px; height: 44px; border-radius: 10px; margin-bottom: 14px;
  display: inline-flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, rgba(30,64,175,0.12), rgba(6,182,212,0.16));
  color: var(--tas-biogas-blue);
}
.tas-biogas-card__icon svg { width: 24px; height: 24px; }
.tas-biogas-card h3 { font-size: 17px; color: var(--tas-biogas-navy); margin: 0 0 8px; font-weight: 700; line-height: 1.3; }
.tas-biogas-card p { margin: 0; font-size: 14.5px; color: var(--tas-biogas-muted); line-height: 1.6; }
.tas-biogas-card ul { margin-top: 12px; display: grid; gap: 6px; }
.tas-biogas-card li { font-size: 13.5px; color: var(--tas-biogas-text); padding-left: 18px; position: relative; line-height: 1.5; }
.tas-biogas-card li::before { content: ""; position: absolute; left: 2px; top: 8px; width: 7px; height: 7px; border-radius: 2px; background: var(--tas-biogas-cyan); }

/* ---------- Process flow ---------- */
.tas-biogas-figure {
  margin: 0 0 32px; border-radius: var(--tas-biogas-radius-lg); overflow: hidden;
  border: 1px solid var(--tas-biogas-line); box-shadow: var(--tas-biogas-shadow-lg); background: #fff;
}
.tas-biogas-figure img { width: 100%; }
.tas-biogas-figure figcaption { padding: 12px 18px; font-size: 12.5px; color: var(--tas-biogas-muted); border-top: 1px solid var(--tas-biogas-line); background: #fff; }
.tas-biogas-flow { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 14px; counter-reset: tasbiogasflow; }
.tas-biogas-flow__step {
  position: relative; background: #fff; border: 1px solid var(--tas-biogas-line); border-radius: var(--tas-biogas-radius);
  padding: 24px 16px 18px; box-shadow: var(--tas-biogas-shadow); counter-increment: tasbiogasflow;
}
.tas-biogas-flow__step::before {
  content: counter(tasbiogasflow, decimal-leading-zero);
  position: absolute; top: -13px; left: 16px;
  background: linear-gradient(135deg, var(--tas-biogas-blue), var(--tas-biogas-cyan));
  color: #fff; font-weight: 800; font-size: 12.5px; padding: 5px 9px; border-radius: 8px; letter-spacing: 0.06em;
}
.tas-biogas-flow__step h3 { margin: 4px 0 6px; font-size: 15px; color: var(--tas-biogas-navy); font-weight: 700; line-height: 1.3; }
.tas-biogas-flow__step p { margin: 0; font-size: 13px; color: var(--tas-biogas-muted); line-height: 1.55; }
.tas-biogas-flow__branches { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 14px; }
.tas-biogas-flow__branch {
  border: 1px dashed #94A3B8; border-radius: var(--tas-biogas-radius); padding: 14px 18px; background: rgba(255,255,255,0.7);
  font-size: 13.5px; color: var(--tas-biogas-muted);
}
.tas-biogas-flow__branch strong { color: var(--tas-biogas-navy); }
.tas-biogas-flow__branch--flare { border-color: rgba(220,38,38,0.55); }
.tas-biogas-flow__branch--flare strong { color: var(--tas-biogas-red); }

/* ---------- Challenge cards ---------- */
.tas-biogas-challenges { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 16px; }
.tas-biogas-challenge {
  background: #fff; border: 1px solid var(--tas-biogas-line); border-top: 3px solid var(--tas-biogas-red);
  border-radius: 12px; padding: 18px 16px; box-shadow: var(--tas-biogas-shadow);
}
.tas-biogas-challenge h3 { margin: 0 0 6px; font-size: 15px; color: var(--tas-biogas-navy); font-weight: 700; line-height: 1.3; }
.tas-biogas-challenge p { margin: 0; font-size: 13px; color: var(--tas-biogas-muted); line-height: 1.55; }

/* ---------- Note / callout ---------- */
.tas-biogas-note {
  display: flex; gap: 14px; align-items: flex-start; margin-top: 28px;
  background: #FEF2F2; border: 1px solid #FECACA; border-left: 4px solid var(--tas-biogas-red);
  border-radius: 12px; padding: 16px 20px; font-size: 14px; color: #7F1D1D; line-height: 1.6;
}
.tas-biogas-note svg { flex: none; width: 22px; height: 22px; color: var(--tas-biogas-red); margin-top: 1px; }
.tas-biogas-note strong { color: #991B1B; }
.tas-biogas-note--info { background: #EFF6FF; border-color: #BFDBFE; border-left-color: var(--tas-biogas-blue); color: #1E3A8A; }
.tas-biogas-note--info svg { color: var(--tas-biogas-blue); }
.tas-biogas-note--info strong { color: var(--tas-biogas-navy); }

/* ---------- Operations cockpit (illustrative) ---------- */
.tas-biogas-cockpit-wrap { display: grid; grid-template-columns: 1.6fr 1fr; gap: 24px; align-items: stretch; }
.tas-biogas-cockpit {
  background: linear-gradient(160deg, #0a2340 0%, #0B2A4A 55%, #0d3260 100%);
  border: 1px solid rgba(156,216,255,0.22); border-radius: var(--tas-biogas-radius-lg);
  padding: 20px; color: #e6f0fb; box-shadow: 0 30px 70px rgba(0,0,0,0.35);
}
.tas-biogas-cockpit__bar { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 16px; }
.tas-biogas-cockpit__title { font-weight: 800; font-size: 15px; color: #fff; display: flex; align-items: center; gap: 10px; }
.tas-biogas-cockpit__title::before { content: ""; width: 9px; height: 9px; border-radius: 50%; background: #22C55E; box-shadow: 0 0 10px #22C55E; }
.tas-biogas-cockpit__flag {
  font-size: 11px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase;
  color: #FDE68A; background: rgba(217,119,6,0.18); border: 1px solid rgba(253,230,138,0.4);
  padding: 5px 10px; border-radius: 999px;
}
.tas-biogas-kpis { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; }
.tas-biogas-kpi {
  background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.1); border-radius: 12px; padding: 12px 12px 10px;
}
.tas-biogas-kpi small { display: block; font-size: 11px; letter-spacing: .06em; text-transform: uppercase; color: #9CB3CC; font-weight: 700; }
.tas-biogas-kpi b { display: block; font-size: clamp(18px, 1.8vw, 24px); color: #fff; font-weight: 800; line-height: 1.2; margin-top: 4px; }
.tas-biogas-kpi b i { font-style: normal; font-size: 12.5px; color: #9CD8FF; font-weight: 600; margin-left: 3px; }
.tas-biogas-kpi em { display: block; font-style: normal; font-size: 11.5px; color: #86EFAC; margin-top: 2px; }
.tas-biogas-kpi em.tas-biogas-kpi--warn { color: #FCD34D; }
.tas-biogas-kpi em.tas-biogas-kpi--alert { color: #FCA5A5; }
.tas-biogas-cockpit__row { display: grid; grid-template-columns: 1.7fr 1fr; gap: 10px; margin-top: 10px; }
.tas-biogas-panel { background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.1); border-radius: 12px; padding: 12px; }
.tas-biogas-panel h4 { margin: 0 0 8px; font-size: 12px; letter-spacing: .06em; text-transform: uppercase; color: #9CB3CC; font-weight: 700; }
.tas-biogas-panel svg { width: 100%; height: auto; display: block; }
.tas-biogas-legend { display: flex; gap: 14px; font-size: 11.5px; color: #B9C8DC; margin-top: 6px; flex-wrap: wrap; }
.tas-biogas-legend span::before { content: ""; display: inline-block; width: 10px; height: 3px; border-radius: 2px; margin-right: 6px; vertical-align: middle; background: var(--tas-biogas-cyan); }
.tas-biogas-legend span.tas-biogas-legend--b::before { background: #F59E0B; }
.tas-biogas-alarms li { display: flex; gap: 8px; align-items: flex-start; font-size: 12.5px; line-height: 1.4; padding: 7px 0; border-bottom: 1px solid rgba(255,255,255,0.08); color: #dbe7f4; }
.tas-biogas-alarms li:last-child { border-bottom: 0; }
.tas-biogas-dot { flex: none; width: 8px; height: 8px; border-radius: 50%; margin-top: 5px; background: #F59E0B; }
.tas-biogas-dot--hi { background: #EF4444; }
.tas-biogas-dot--ok { background: #22C55E; }
.tas-biogas-cockpit__foot { margin: 12px 0 0; font-size: 11.5px; color: #9CB3CC; }
.tas-biogas-cockpit-side { display: grid; gap: 18px; align-content: start; }
.tas-biogas-cockpit-side figure { margin: 0; border-radius: var(--tas-biogas-radius); overflow: hidden; box-shadow: var(--tas-biogas-shadow-lg); }
.tas-biogas-cockpit-side figure img { width: 100%; aspect-ratio: 16/10; object-fit: cover; }

/* ---------- Segments ---------- */
.tas-biogas-segments { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; }
.tas-biogas-segment {
  background: #fff; border: 1px solid var(--tas-biogas-line); border-radius: var(--tas-biogas-radius);
  padding: 22px 20px; box-shadow: var(--tas-biogas-shadow); position: relative; overflow: hidden;
}
.tas-biogas-segment::after { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 4px; background: linear-gradient(180deg, var(--tas-biogas-blue), var(--tas-biogas-cyan)); }
.tas-biogas-segment h3 { margin: 0 0 8px; font-size: 16.5px; color: var(--tas-biogas-navy); font-weight: 800; line-height: 1.3; }
.tas-biogas-segment p { margin: 0 0 12px; font-size: 13.5px; color: var(--tas-biogas-muted); line-height: 1.55; }
.tas-biogas-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.tas-biogas-tags span { font-size: 11.5px; font-weight: 600; color: var(--tas-biogas-blue); background: #EEF4FF; border: 1px solid #DBE6FF; padding: 4px 9px; border-radius: 999px; }
.tas-biogas-segment--feature {
  grid-column: span 1; padding: 0; display: flex; flex-direction: column; background: var(--tas-biogas-navy); border-color: var(--tas-biogas-navy);
}
.tas-biogas-segment--feature img { width: 100%; aspect-ratio: 16/10; object-fit: cover; }
.tas-biogas-segment--feature div { padding: 16px 20px 20px; }
.tas-biogas-segment--feature h3 { color: #fff; }
.tas-biogas-segment--feature p { color: #b9c8dc; margin: 0; }

/* ---------- Architecture ---------- */
.tas-biogas-arch { display: grid; grid-template-columns: 1fr; gap: 22px; }
.tas-biogas-arch .tas-biogas-layers { display: none; }
.tas-biogas-arch .tas-biogas-figure { margin: 0; border-color: rgba(255,255,255,0.12); background: #081f37; }
.tas-biogas-arch .tas-biogas-figure figcaption { background: #0a2747; color: #9CB3CC; border-top-color: rgba(255,255,255,0.1); }
.tas-biogas-layers { display: grid; gap: 10px; counter-reset: tasbiogaslayer 6; }
.tas-biogas-layer {
  background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.14); border-radius: 12px; padding: 14px 16px 14px 58px;
  position: relative; counter-increment: tasbiogaslayer -1;
}
.tas-biogas-layer::before {
  content: "L" counter(tasbiogaslayer); position: absolute; left: 14px; top: 14px;
  width: 32px; height: 32px; border-radius: 8px; display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, var(--tas-biogas-blue), var(--tas-biogas-cyan)); color: #fff; font-weight: 800; font-size: 13px;
}
.tas-biogas-layer h3 { margin: 0 0 3px; font-size: 15px; color: #fff; font-weight: 700; }
.tas-biogas-layer p { margin: 0; font-size: 13px; color: #b9c8dc; line-height: 1.5; }
.tas-biogas-pills { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.tas-biogas-pills span { font-size: 12px; font-weight: 600; color: #e6f0fb; border: 1px solid rgba(156,216,255,0.35); background: rgba(6,182,212,0.1); padding: 6px 11px; border-radius: 999px; }

/* ---------- KPIs ---------- */
.tas-biogas-kpigrid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; }
.tas-biogas-kpicard { background: #fff; border: 1px solid var(--tas-biogas-line); border-radius: 12px; padding: 16px 16px 14px; box-shadow: var(--tas-biogas-shadow); }
.tas-biogas-kpicard h3 { margin: 0 0 2px; font-size: 14.5px; color: var(--tas-biogas-navy); font-weight: 800; line-height: 1.3; }
.tas-biogas-kpicard .tas-biogas-unit { display: inline-block; font-size: 11.5px; font-weight: 700; color: var(--tas-biogas-blue); background: #EEF4FF; border-radius: 6px; padding: 2px 7px; margin: 4px 0 8px; }
.tas-biogas-kpicard p { margin: 0; font-size: 12.5px; color: var(--tas-biogas-muted); line-height: 1.5; }

/* ---------- HSE boundary ---------- */
.tas-biogas-boundary { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.tas-biogas-boundary__col { border-radius: var(--tas-biogas-radius-lg); padding: clamp(22px, 2.6vw, 30px); border: 1px solid var(--tas-biogas-line); background: #fff; box-shadow: var(--tas-biogas-shadow); }
.tas-biogas-boundary__col--tas { border-top: 4px solid var(--tas-biogas-blue); }
.tas-biogas-boundary__col--auth { border-top: 4px solid var(--tas-biogas-red); }
.tas-biogas-boundary__col h3 { margin: 0 0 14px; font-size: 18px; color: var(--tas-biogas-navy); font-weight: 800; }
.tas-biogas-check li { position: relative; padding-left: 28px; font-size: 14.5px; color: var(--tas-biogas-text); margin-bottom: 10px; line-height: 1.55; }
.tas-biogas-check li::before {
  content: ""; position: absolute; left: 0; top: 3px; width: 18px; height: 18px; border-radius: 50%;
  background: rgba(30,64,175,0.12) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M5 10.5l3 3 7-7' fill='none' stroke='%231E40AF' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/12px no-repeat;
}
.tas-biogas-boundary__col--auth .tas-biogas-check li::before {
  background: rgba(220,38,38,0.1) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Crect x='5' y='9' width='10' height='7' rx='1.5' fill='none' stroke='%23DC2626' stroke-width='2'/%3E%3Cpath d='M7 9V7a3 3 0 016 0v2' fill='none' stroke='%23DC2626' stroke-width='2'/%3E%3C/svg%3E") center/12px no-repeat;
}

/* ---------- Phases ---------- */
.tas-biogas-phases { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 14px; position: relative; counter-reset: tasbiogasphase; }
.tas-biogas-phase { position: relative; padding-top: 56px; counter-increment: tasbiogasphase; }
.tas-biogas-phase::before {
  content: counter(tasbiogasphase); position: absolute; top: 0; left: 0;
  width: 42px; height: 42px; border-radius: 50%; display: flex; align-items: center; justify-content: center;
  background: var(--tas-biogas-navy); color: #fff; font-weight: 800; font-size: 16px;
  box-shadow: 0 0 0 5px #DBE6FF;
}
.tas-biogas-phase::after { content: ""; position: absolute; top: 21px; left: 54px; right: -6px; height: 2px; background: linear-gradient(90deg, var(--tas-biogas-cyan), rgba(6,182,212,0.15)); }
.tas-biogas-phase:last-child::after { display: none; }
.tas-biogas-phase h3 { margin: 0 0 6px; font-size: 15.5px; color: var(--tas-biogas-navy); font-weight: 800; line-height: 1.3; }
.tas-biogas-phase p { margin: 0; font-size: 13px; color: var(--tas-biogas-muted); line-height: 1.55; }

/* ---------- CTA ---------- */
.tas-biogas-cta {
  position: relative; overflow: hidden; color: #fff;
  background:
    radial-gradient(800px 380px at 100% 0%, rgba(6,182,212,0.22), transparent 60%),
    linear-gradient(135deg, #081f37 0%, var(--tas-biogas-navy) 55%, var(--tas-biogas-blue) 130%);
  padding: clamp(56px, 7vw, 90px) clamp(20px, 5vw, 56px);
}
.tas-biogas-cta__grid { max-width: 1240px; margin: 0 auto; display: grid; grid-template-columns: 1.3fr 1fr; gap: 40px; align-items: center; }
.tas-biogas-cta h2 { font-size: clamp(26px, 3.2vw, 40px); line-height: 1.2; margin: 0 0 14px; font-weight: 800; color: #fff; }
.tas-biogas-cta p { margin: 0 0 24px; color: #c9d7e8; font-size: 16px; max-width: 640px; }
.tas-biogas-cta__actions { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.tas-biogas-page a.tas-biogas-cta__mail { color: #9CD8FF; font-weight: 700; border-bottom: 1px solid rgba(156,216,255,0.5); padding-bottom: 1px; }
.tas-biogas-related { background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.14); border-radius: var(--tas-biogas-radius-lg); padding: 22px; }
.tas-biogas-related h3 { margin: 0 0 12px; font-size: 13px; letter-spacing: .14em; text-transform: uppercase; color: #9CD8FF; font-weight: 700; }
.tas-biogas-related li { border-bottom: 1px solid rgba(255,255,255,0.1); }
.tas-biogas-related li:last-child { border-bottom: 0; }
.tas-biogas-page .tas-biogas-related a { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 11px 2px; font-weight: 600; font-size: 15px; color: #fff; }
.tas-biogas-page .tas-biogas-related a:hover { color: #9CD8FF; }
.tas-biogas-related a span[aria-hidden] { color: var(--tas-biogas-cyan); }

/* ---------- Focus & motion ---------- */
.tas-biogas-page a:focus-visible { outline: 3px solid var(--tas-biogas-cyan); outline-offset: 3px; border-radius: 6px; }
@media (prefers-reduced-motion: reduce) {
  .tas-biogas-page *, .tas-biogas-page *::before, .tas-biogas-page *::after { transition: none !important; }
  .tas-biogas-card:hover { transform: none; }
}

/* ---------- Responsive ---------- */
@media (max-width: 1100px) {
  .tas-biogas-strip__grid { grid-template-columns: repeat(3, 1fr); }
  .tas-biogas-strip__item:nth-child(3) { border-right: 0; }
  .tas-biogas-strip__item:nth-child(n+4) { border-top: 1px solid var(--tas-biogas-line); }
  .tas-biogas-flow { grid-template-columns: repeat(3, minmax(0, 1fr)); row-gap: 26px; }
  .tas-biogas-challenges { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .tas-biogas-grid--4, .tas-biogas-kpigrid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .tas-biogas-segments { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .tas-biogas-cockpit-wrap { grid-template-columns: 1fr; }
  .tas-biogas-cockpit-side { grid-template-columns: 1fr 1fr; }
  .tas-biogas-phases { grid-template-columns: repeat(3, minmax(0, 1fr)); row-gap: 30px; }
  .tas-biogas-phase:nth-child(3)::after { display: none; }
}
@media (max-width: 900px) {
  .tas-biogas-hero__grid { grid-template-columns: 1fr; }
  .tas-biogas-grid--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .tas-biogas-boundary, .tas-biogas-cta__grid { grid-template-columns: 1fr; }
  .tas-biogas-kpis { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .tas-biogas-cockpit__row { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .tas-biogas-strip__grid { grid-template-columns: 1fr 1fr; }
  .tas-biogas-strip__item { border-right: 0; border-top: 1px solid var(--tas-biogas-line); padding: 20px 8px; }
  .tas-biogas-strip__item:nth-child(odd) { border-right: 1px solid var(--tas-biogas-line); padding-right: 14px; }
  .tas-biogas-strip__item:first-child, .tas-biogas-strip__item:nth-child(2) { border-top: 0; }
  .tas-biogas-strip__item:last-child { grid-column: 1 / -1; border-right: 0; }
  .tas-biogas-strip__item::before { left: 8px; }
  .tas-biogas-flow, .tas-biogas-flow__branches { grid-template-columns: 1fr; }
  .tas-biogas-challenges { grid-template-columns: 1fr 1fr; gap: 12px; }
  .tas-biogas-grid--2, .tas-biogas-grid--3, .tas-biogas-grid--4, .tas-biogas-segments, .tas-biogas-cockpit-side { grid-template-columns: 1fr; }
  .tas-biogas-kpigrid { grid-template-columns: 1fr 1fr; gap: 10px; }
  .tas-biogas-phases { grid-template-columns: 1fr; row-gap: 18px; }
  .tas-biogas-phase { padding: 0 0 0 58px; min-height: 42px; }
  .tas-biogas-phase::after { display: none; }
  .tas-biogas-hero__tags { position: static; grid-template-columns: 1fr; padding: 12px; background: #081f37; }
  .tas-biogas-hero__media::after { display: none; }
  .tas-biogas-arch .tas-biogas-figure { display: none; }
  .tas-biogas-arch .tas-biogas-layers { display: grid; }
  .tas-biogas-btn { width: 100%; justify-content: center; }
}
@media (max-width: 420px) {
  .tas-biogas-challenges, .tas-biogas-kpigrid { grid-template-columns: 1fr; }
  .tas-biogas-kpis { grid-template-columns: 1fr 1fr; }
}