/* ==========================================================================
   Energy Tools — Marketing Site Styles
   Built on the Extra Nerds design system tokens (tokens.css).
   Aesthetic: technical-publication. Linear/Vercel/Stripe docs adjacent.
   ========================================================================== */

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  background: var(--bg-page);
  color: var(--fg-1);
  font-size: 16px;
  line-height: var(--lh-normal);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* ---------- Layout primitives ---------- */
.container { max-width: 1180px; margin: 0 auto; padding: 0 var(--space-5); }
.container-narrow { max-width: 880px; margin: 0 auto; padding: 0 var(--space-5); }
@media (max-width: 720px) {
  .container, .container-narrow { padding: 0 var(--space-3); }
}

.section { padding: var(--space-9) 0; }
.section-tight { padding: var(--space-8) 0; }
@media (max-width: 720px) {
  .section, .section-tight { padding: var(--space-7) 0; }
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-primary);
  margin-bottom: var(--space-2);
  display: inline-block;
}
.eyebrow--accent { color: var(--color-accent); }
.eyebrow--muted  { color: var(--fg-3); }

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--color-dark);
  letter-spacing: -0.015em;
}
.h-display {
  font-family: var(--font-heading);
  font-size: clamp(36px, 5.2vw, 56px);
  font-weight: 600;
  line-height: 1.05;
  letter-spacing: -0.025em;
  color: var(--color-dark);
  margin: 0;
}
.h-section {
  font-family: var(--font-heading);
  font-size: clamp(28px, 3.4vw, 40px);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin: 0 0 var(--space-3);
  color: var(--color-dark);
}
.h-sub {
  font-family: var(--font-heading);
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 0 0 var(--space-2);
  color: var(--color-dark);
}
.lede {
  font-size: 19px;
  line-height: 1.55;
  color: var(--fg-2);
  max-width: 60ch;
}
p { margin: 0 0 var(--space-2); color: var(--fg-2); }
.body-prose p { font-size: 17px; line-height: 1.65; color: var(--fg-2); max-width: 68ch; }
.body-prose strong { color: var(--color-dark); font-weight: 600; }
.body-prose ul { padding-left: 0; list-style: none; }
.body-prose ul li {
  padding: var(--space-2) 0 var(--space-2) 28px;
  border-bottom: 1px solid var(--border-subtle);
  font-size: 16px;
  line-height: 1.6;
  color: var(--fg-2);
  position: relative;
}
.body-prose ul li:last-child { border-bottom: 0; }
.body-prose ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 22px;
  width: 14px;
  height: 1px;
  background: var(--color-primary);
}
.body-prose ul li strong { color: var(--color-dark); }

/* Mono treatment for domain terms — same family as code, but inline & less prominent */
code, .mono {
  font-family: var(--font-mono);
  font-size: 0.9em;
  background: var(--color-gray-100);
  color: var(--color-dark);
  padding: 1px 6px;
  border-radius: var(--radius-sm);
  white-space: nowrap;
  font-weight: 500;
}

/* ---------- Buttons ---------- */
.btn {
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 600;
  padding: 12px 20px;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  line-height: 1.1;
  letter-spacing: -0.005em;
  white-space: nowrap;
}
.btn-primary {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}
.btn-primary:hover {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  color: #fff;
  text-decoration: none;
}
.btn-primary:disabled,
.btn-primary[aria-disabled="true"] {
  background: var(--color-gray-200);
  color: var(--fg-3);
  border-color: var(--color-gray-200);
  cursor: not-allowed;
}
.btn-secondary {
  background: transparent;
  color: var(--color-dark);
  border-color: var(--border-strong);
}
.btn-secondary:hover {
  border-color: var(--color-dark);
  color: var(--color-dark);
  background: var(--color-white);
  text-decoration: none;
}
.btn-ghost {
  background: transparent;
  color: var(--color-primary);
  border-color: transparent;
  padding: 8px 4px;
}
.btn-ghost:hover { color: var(--color-primary-dark); text-decoration: underline; }

.btn-lg { padding: 14px 22px; font-size: 16px; }
.btn-sm { padding: 8px 14px; font-size: 14px; }
.btn-block { width: 100%; justify-content: center; }

.btn .arr { transition: transform var(--transition-fast); }
.btn:hover .arr { transform: translateX(2px); }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(160%) blur(10px);
  -webkit-backdrop-filter: saturate(160%) blur(10px);
  border-bottom: 1px solid var(--border-subtle);
}
.header-inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 14px var(--space-5);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 18px;
  color: var(--color-dark);
  letter-spacing: -0.015em;
  text-decoration: none;
}
.brand:hover { text-decoration: none; color: var(--color-dark); }
.brand-mark {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  background: var(--color-dark);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 13px;
  letter-spacing: -0.02em;
}
.brand-name { display: inline-flex; gap: 0; }
.brand-name .a { color: var(--color-dark); }
.brand-name .b { color: var(--color-primary); }
.site-nav { display: flex; align-items: center; gap: var(--space-4); }
.site-nav-links { display: flex; gap: var(--space-3); }
.site-nav-links a {
  font-size: 14px;
  font-weight: 500;
  color: var(--fg-2);
  text-decoration: none;
  transition: color var(--transition-fast);
}
.site-nav-links a:hover { color: var(--color-dark); text-decoration: none; }
@media (max-width: 900px) {
  .site-nav-links { display: none; }
}
@media (max-width: 540px) {
  .header-cta-label-long { display: none; }
}

/* ---------- Hero ---------- */
.hero {
  padding: var(--space-8) 0 var(--space-9);
  border-bottom: 1px solid var(--border-subtle);
  background:
    radial-gradient(circle at 75% 0%, rgba(42, 143, 150, 0.06), transparent 60%),
    var(--color-white);
}
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1.2fr);
  gap: var(--space-6);
  align-items: center;
}
@media (max-width: 960px) {
  .hero-grid { grid-template-columns: 1fr; gap: var(--space-5); }
}
.hero h1 {
  font-family: var(--font-heading);
  font-size: clamp(34px, 4.8vw, 56px);
  line-height: 1.04;
  letter-spacing: -0.028em;
  font-weight: 600;
  margin: 0 0 var(--space-3);
  color: var(--color-dark);
}
.hero h1 .accent { color: var(--color-primary); }
.hero .lede { font-size: 19px; line-height: 1.55; color: var(--fg-2); margin: 0 0 var(--space-3); max-width: 56ch; }
.hero .price-anchor {
  font-size: 14px;
  color: var(--fg-3);
  margin: 0 0 var(--space-4);
  font-weight: 500;
}
.hero .price-anchor strong { color: var(--color-dark); font-weight: 600; }
.hero-ctas { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: var(--space-4); }
.hero-meta {
  display: flex;
  gap: var(--space-3);
  align-items: center;
  font-size: 13px;
  color: var(--fg-3);
  flex-wrap: wrap;
}
.hero-meta-dot { width: 4px; height: 4px; border-radius: 50%; background: var(--color-gray-300); }
.hero-meta-item { display: inline-flex; align-items: center; gap: 6px; }
.hero-meta-item .dot-green { width: 7px; height: 7px; border-radius: 50%; background: var(--status-success); box-shadow: 0 0 0 3px rgba(45, 138, 78, 0.12); }

/* ---------- Asset placeholders ---------- */
.asset-slot {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  background: var(--color-white);
}
.asset-tag {
  position: absolute;
  top: 10px;
  right: 10px;
  z-index: 3;
  background: rgba(30, 47, 49, 0.9);
  color: #fff;
  font-family: var(--font-mono);
  font-size: 10.5px;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  letter-spacing: 0.02em;
  font-weight: 500;
}

/* Mock product UI shared styles */
.mock {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  font-size: 13px;
  color: var(--color-dark);
}
.mock-titlebar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  background: var(--color-gray-100);
  border-bottom: 1px solid var(--border-subtle);
}
.mock-dots { display: flex; gap: 6px; }
.mock-dots span {
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--color-gray-300);
}
.mock-dots span:nth-child(1) { background: #e5645a; }
.mock-dots span:nth-child(2) { background: #e5b246; }
.mock-dots span:nth-child(3) { background: #5dbd6e; }
.mock-url {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--fg-3);
  background: var(--color-white);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
  flex: 1;
}
.mock-app {
  display: grid;
  grid-template-columns: 168px 1fr;
  min-height: 380px;
}
.mock-side {
  background: #fbfcfc;
  border-right: 1px solid var(--border-subtle);
  padding: 14px 10px;
  font-size: 12px;
}
.mock-side-grp { padding: 4px 8px; font-size: 10.5px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--fg-3); margin-top: 12px; font-weight: 600; }
.mock-side-grp:first-child { margin-top: 0; }
.mock-side-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 8px;
  border-radius: var(--radius-sm);
  color: var(--fg-2);
  cursor: default;
}
.mock-side-item.active { background: var(--bg-primary-soft); color: var(--color-primary-dark); font-weight: 600; }
.mock-side-icon { width: 14px; height: 14px; color: currentColor; flex-shrink: 0; }
.mock-main { padding: 18px 20px; background: #fff; min-width: 0; }
.mock-crumb { font-family: var(--font-mono); font-size: 11px; color: var(--fg-3); margin-bottom: 8px; }
.mock-h { font-family: var(--font-heading); font-size: 18px; font-weight: 600; margin: 0 0 4px; color: var(--color-dark); }
.mock-sub { font-size: 12px; color: var(--fg-3); margin-bottom: 14px; }
.mock-progress {
  height: 8px;
  background: var(--color-gray-100);
  border-radius: var(--radius-pill);
  overflow: hidden;
  position: relative;
  margin-bottom: 6px;
}
.mock-progress-fill {
  position: absolute;
  inset: 0 auto 0 0;
  width: 14.7%;
  background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  border-radius: var(--radius-pill);
}
.mock-progress-label { font-family: var(--font-mono); font-size: 11px; color: var(--fg-2); margin-bottom: 14px; }
.mock-counters { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; margin-bottom: 16px; }
.mock-counter {
  background: var(--color-gray-100);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 8px 10px;
}
.mock-counter .lbl { font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; color: var(--fg-3); font-weight: 600; }
.mock-counter .val { font-family: var(--font-mono); font-size: 14px; font-weight: 600; color: var(--color-dark); margin-top: 2px; }
.mock-counter.err .val { color: var(--color-accent); }
.mock-table { font-family: var(--font-mono); font-size: 11.5px; }
.mock-table-head, .mock-row {
  display: grid;
  grid-template-columns: 80px 1fr 110px 80px;
  gap: 10px;
  padding: 6px 10px;
  border-bottom: 1px solid var(--border-subtle);
  align-items: center;
}
.mock-table-head { color: var(--fg-3); font-size: 10.5px; text-transform: uppercase; letter-spacing: 0.05em; background: #fbfcfc; }
.mock-row { color: var(--color-dark); }
.mock-row .st { display: inline-flex; align-items: center; gap: 6px; font-size: 11px; font-weight: 600; }
.mock-row .st .dot { width: 7px; height: 7px; border-radius: 50%; }
.mock-row .st.ok .dot   { background: var(--status-success); }
.mock-row .st.warn .dot { background: var(--status-warning); }
.mock-row .st.err .dot  { background: var(--color-accent); }
.mock-row .st.ok   { color: var(--status-success); }
.mock-row .st.warn { color: var(--status-warning); }
.mock-row .st.err  { color: var(--color-accent); }
.mock-row .meta { color: var(--fg-3); }

/* ---------- Problem section ---------- */
.problem {
  background: var(--color-white);
  border-bottom: 1px solid var(--border-subtle);
}
.problem-headline {
  font-family: var(--font-heading);
  font-size: clamp(28px, 3vw, 36px);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--color-dark);
  max-width: 22ch;
  margin: 0 0 var(--space-4);
}

/* ---------- Modules ---------- */
.modules { background: var(--color-light); border-bottom: 1px solid var(--border-subtle); }
.modules-overview {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-2);
  margin-bottom: var(--space-7);
}
@media (max-width: 980px) { .modules-overview { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .modules-overview { grid-template-columns: 1fr; } }

.module-card {
  background: var(--color-white);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-3);
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: border-color var(--transition-base), box-shadow var(--transition-base), transform var(--transition-base);
  min-height: 220px;
  position: relative;
}
.module-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-sm);
  transform: translateY(-1px);
}
.module-card .ic {
  width: 28px; height: 28px;
  color: var(--color-primary);
  margin-bottom: 6px;
}
.module-card .badge {
  font-family: var(--font-mono);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  align-self: flex-start;
}
.module-card .badge-required {
  background: var(--bg-accent-soft);
  color: var(--color-accent-dark);
}
.module-card .badge-ext {
  background: var(--bg-primary-soft);
  color: var(--color-primary-dark);
}
.module-card h3 { font-size: 17px; font-weight: 600; margin: 0; color: var(--color-dark); letter-spacing: -0.01em; }
.module-card .price { font-family: var(--font-mono); font-size: 14px; color: var(--color-dark); font-weight: 600; }
.module-card .price small { font-family: var(--font-body); font-size: 12px; color: var(--fg-3); font-weight: 400; }
.module-card .desc { font-size: 13.5px; color: var(--fg-2); line-height: 1.5; margin: 0; flex: 1; }
.module-card .card-cta {
  margin-top: var(--space-2);
  font-size: 13px;
  font-weight: 600;
  color: var(--color-primary);
  background: none;
  border: 0;
  padding: 0;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  text-align: left;
  font-family: var(--font-body);
}
.module-card .card-cta:hover { color: var(--color-primary-dark); text-decoration: underline; }
.module-card .card-cta:disabled { color: var(--fg-3); cursor: default; text-decoration: none; }

/* Module deep-dives */
.module-deep {
  background: var(--color-white);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  margin-bottom: var(--space-3);
  scroll-margin-top: 88px;
}
.module-deep-head {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--space-3);
  align-items: baseline;
  margin-bottom: var(--space-3);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--border-subtle);
}
.module-deep-head h3 {
  font-family: var(--font-heading);
  font-size: clamp(24px, 2.6vw, 30px);
  font-weight: 600;
  letter-spacing: -0.02em;
  margin: 0 0 4px;
  color: var(--color-dark);
}
.module-deep-head .oneline {
  font-size: 17px;
  color: var(--fg-2);
  margin: 0;
  line-height: 1.4;
}
.module-deep-head .price-tag {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--color-dark);
  font-weight: 600;
  text-align: right;
}
.module-deep-head .price-tag small { font-family: var(--font-body); font-size: 12px; color: var(--fg-3); font-weight: 400; display: block; }
.module-deep-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
  gap: var(--space-5);
}
@media (max-width: 880px) { .module-deep-grid { grid-template-columns: 1fr; } }

.module-deep h4 {
  font-family: var(--font-heading);
  font-size: 14px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--fg-3);
  margin: var(--space-3) 0 var(--space-2);
}
.module-deep h4:first-child { margin-top: 0; }
.module-deep p { font-size: 15px; line-height: 1.65; color: var(--fg-2); }
.module-deep ol { padding-left: 20px; margin: 0; }
.module-deep ol li { font-size: 15px; line-height: 1.6; color: var(--fg-2); margin-bottom: var(--space-2); }
.module-deep ol li strong { color: var(--color-dark); font-weight: 600; }
.module-deep ul.tech { padding: 0; list-style: none; margin: 0; }
.module-deep ul.tech li {
  font-size: 14px;
  line-height: 1.55;
  color: var(--fg-2);
  padding: 8px 0 8px 18px;
  border-bottom: 1px solid var(--border-subtle);
  position: relative;
}
.module-deep ul.tech li:last-child { border-bottom: 0; }
.module-deep ul.tech li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 16px;
  width: 8px;
  height: 1px;
  background: var(--color-primary);
}
.module-deep ul.tech li strong { color: var(--color-dark); font-weight: 600; }

.pull-quotes { display: flex; flex-direction: column; gap: 10px; margin-top: var(--space-3); }
.pull-quote {
  font-family: var(--font-heading);
  font-size: 17px;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--color-dark);
  padding: 12px 16px;
  background: var(--color-gray-100);
  border-left: 3px solid var(--color-primary);
  border-radius: var(--radius-sm);
}

.module-deep-foot {
  margin-top: var(--space-4);
  padding-top: var(--space-3);
  border-top: 1px solid var(--border-subtle);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-2);
}
.module-deep-foot .added {
  font-size: 14px;
  color: var(--status-success);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.module-deep-foot .added svg { width: 16px; height: 16px; }

/* ---------- How it works (SVG diagram) ---------- */
.howitworks { background: var(--color-white); border-bottom: 1px solid var(--border-subtle); }
.diagram-wrap {
  background: var(--color-dark);
  color: #d6e0e2;
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  border: 1px solid var(--color-dark);
  overflow: hidden;
}
.diagram-wrap svg { display: block; width: 100%; height: auto; max-width: 100%; }

/* ---------- Integrations / arch ---------- */
.integrations { background: var(--color-light); border-bottom: 1px solid var(--border-subtle); }
.int-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  gap: var(--space-5);
}
@media (max-width: 880px) { .int-grid { grid-template-columns: 1fr; } }
.int-table {
  background: var(--color-white);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.int-table table { width: 100%; border-collapse: collapse; font-size: 14px; }
.int-table th, .int-table td {
  text-align: left;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-subtle);
  vertical-align: top;
  color: var(--fg-2);
}
.int-table th {
  font-family: var(--font-heading);
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--fg-3);
  background: var(--color-gray-100);
}
.int-table tr:last-child td { border-bottom: 0; }
.int-table strong { color: var(--color-dark); font-weight: 600; }
.int-table td.proto code { font-size: 11.5px; }

.stack-list { padding: 0; list-style: none; margin: 0; }
.stack-list li {
  padding: 12px 0;
  border-bottom: 1px solid var(--border-subtle);
  font-size: 14.5px;
  color: var(--fg-2);
  display: grid;
  grid-template-columns: 130px 1fr;
  gap: var(--space-2);
  align-items: baseline;
}
.stack-list li:last-child { border-bottom: 0; }
.stack-list li .k {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-primary);
  font-weight: 600;
}

.deploy-shapes {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-2);
  margin-top: var(--space-3);
}
@media (max-width: 760px) { .deploy-shapes { grid-template-columns: 1fr; } }
.deploy-card {
  background: var(--color-white);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: var(--space-3);
  font-size: 14px;
  color: var(--fg-2);
  line-height: 1.55;
}
.deploy-card h5 {
  font-family: var(--font-heading);
  font-size: 15px;
  font-weight: 600;
  color: var(--color-dark);
  margin: 0 0 6px;
}

/* ---------- Security ---------- */
.security { background: var(--color-white); border-bottom: 1px solid var(--border-subtle); }
.sec-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-5);
}
@media (max-width: 760px) { .sec-grid { grid-template-columns: 1fr; } }
.sec-block h3 {
  font-family: var(--font-heading);
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-primary);
  margin: 0 0 var(--space-2);
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-subtle);
}
.sec-block ul { padding: 0; margin: 0; list-style: none; }
.sec-block li {
  padding: 8px 0;
  font-size: 14.5px;
  color: var(--fg-2);
  line-height: 1.6;
  border-bottom: 1px dashed var(--border-subtle);
}
.sec-block li:last-child { border-bottom: 0; }

/* ---------- Who it's for ---------- */
.whofor { background: var(--color-light); border-bottom: 1px solid var(--border-subtle); }
.whofor-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}
@media (max-width: 760px) { .whofor-grid { grid-template-columns: 1fr; } }
.whofor-col {
  background: var(--color-white);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
}
.whofor-col h3 {
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 600;
  margin: 0 0 var(--space-3);
  letter-spacing: -0.01em;
  color: var(--color-dark);
  padding-bottom: var(--space-2);
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  gap: 8px;
}
.whofor-col h3 .glyph {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--color-primary);
}
.whofor-col.no h3 .glyph { color: var(--fg-3); }
.whofor-col ul { padding: 0; list-style: none; margin: 0; }
.whofor-col li { font-size: 15px; line-height: 1.55; color: var(--fg-2); padding: 10px 0; border-bottom: 1px solid var(--border-subtle); }
.whofor-col li:last-child { border-bottom: 0; }

/* ---------- About ---------- */
.about { background: var(--color-white); border-bottom: 1px solid var(--border-subtle); }
.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  gap: var(--space-5);
  align-items: start;
}
@media (max-width: 760px) { .about-grid { grid-template-columns: 1fr; } }
.about-bullets { padding: 0; list-style: none; margin: var(--space-2) 0 0; }
.about-bullets li { padding: 10px 0; font-size: 15.5px; line-height: 1.6; color: var(--fg-2); border-top: 1px solid var(--border-subtle); }
.about-bullets li:first-child { border-top: 0; }
.about-bullets strong { color: var(--color-dark); font-weight: 600; }

/* ---------- Configurator + Order form ---------- */
.configure { background: var(--color-light); border-bottom: 1px solid var(--border-subtle); scroll-margin-top: 80px; }
.configure-header { text-align: left; margin-bottom: var(--space-5); max-width: 760px; }
.configure-card {
  background: var(--color-white);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  max-width: 760px;
  margin: 0 auto;
}
.configure-card-head {
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--border-subtle);
  background: var(--color-white);
}
.configure-card-head h3 {
  font-family: var(--font-heading);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-primary);
  margin: 0 0 6px;
}
.configure-card-head h2 {
  font-family: var(--font-heading);
  font-size: 26px;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin: 0 0 4px;
  color: var(--color-dark);
}
.configure-card-head .meta { font-size: 13.5px; color: var(--fg-3); margin: 0; }

.config-row {
  display: grid;
  grid-template-columns: 28px 1fr auto;
  gap: 14px;
  align-items: flex-start;
  padding: var(--space-3) var(--space-5);
  border-bottom: 1px solid var(--border-subtle);
  cursor: pointer;
  transition: background var(--transition-fast);
}
.config-row:last-of-type { border-bottom: 0; }
.config-row:hover { background: #fbfcfc; }
.config-row.core { background: var(--color-gray-100); cursor: default; }
.config-row.core:hover { background: var(--color-gray-100); }
.config-row.selected { background: var(--bg-primary-soft); }
.config-row.selected:hover { background: var(--bg-primary-soft); }

.config-check {
  width: 22px;
  height: 22px;
  border-radius: var(--radius-sm);
  border: 2px solid var(--border-strong);
  background: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 2px;
  transition: all var(--transition-fast);
  position: relative;
}
.config-row:hover .config-check { border-color: var(--color-primary); }
.config-row.selected .config-check { background: var(--color-primary); border-color: var(--color-primary); }
.config-row.selected .config-check svg { color: #fff; }
.config-row.core .config-check { background: var(--color-dark); border-color: var(--color-dark); }
.config-row.core .config-check svg { color: #fff; }
.config-check svg { width: 14px; height: 14px; opacity: 0; transition: opacity var(--transition-fast); }
.config-row.selected .config-check svg,
.config-row.core .config-check svg { opacity: 1; }

.config-body { min-width: 0; }
.config-body .name-row { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-bottom: 4px; }
.config-body .name { font-family: var(--font-heading); font-weight: 600; font-size: 16px; color: var(--color-dark); letter-spacing: -0.01em; }
.config-body .pill {
  font-family: var(--font-mono);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
  padding: 2px 7px;
  border-radius: var(--radius-pill);
  background: var(--color-dark);
  color: #fff;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.config-body .pill svg { width: 9px; height: 9px; }
.config-body .desc { font-size: 13.5px; color: var(--fg-2); line-height: 1.5; margin: 0; }
.config-body .desc-req { font-size: 12.5px; color: var(--fg-3); margin-top: 4px; font-style: italic; }
.config-price {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 600;
  color: var(--color-dark);
  white-space: nowrap;
  padding-top: 2px;
}
.config-price small { font-family: var(--font-body); font-size: 11px; color: var(--fg-3); font-weight: 400; }

.config-tooltip {
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-dark);
  color: #fff;
  font-size: 12px;
  font-weight: 400;
  padding: 8px 12px;
  border-radius: var(--radius-md);
  white-space: normal;
  width: 220px;
  text-align: center;
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--transition-fast);
  z-index: 5;
  line-height: 1.4;
}
.config-tooltip::after {
  content: "";
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  border: 6px solid transparent;
  border-top-color: var(--color-dark);
}
.config-row.core:hover .config-tooltip { opacity: 1; }

.config-foot {
  padding: var(--space-4) var(--space-5) var(--space-5);
  background: var(--color-white);
  border-top: 1px solid var(--border-subtle);
}
.config-total-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-3);
  border-bottom: 1px dashed var(--border-subtle);
}
.config-total-row .lbl { font-family: var(--font-heading); font-size: 14px; font-weight: 600; color: var(--fg-3); text-transform: uppercase; letter-spacing: 0.05em; }
.config-total {
  font-family: var(--font-heading);
  font-size: 36px;
  font-weight: 700;
  color: var(--color-dark);
  letter-spacing: -0.02em;
  transition: color var(--transition-base);
}
.config-total .unit { font-family: var(--font-body); font-size: 14px; color: var(--fg-3); font-weight: 400; margin-left: 4px; }
.config-foot .btn-block { font-size: 16px; padding: 14px 20px; }
.config-foot .secondary-line {
  text-align: center;
  font-size: 13.5px;
  color: var(--fg-3);
  margin-top: var(--space-2);
}
.config-foot .secondary-line a { color: var(--color-primary); font-weight: 600; }

.reassurance {
  max-width: 760px;
  margin: var(--space-4) auto 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-2);
}
@media (max-width: 600px) { .reassurance { grid-template-columns: 1fr; } }
.reassurance .item {
  padding: 12px 14px;
  background: var(--color-white);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  font-size: 13.5px;
  color: var(--fg-2);
  line-height: 1.5;
}
.reassurance .item strong { color: var(--color-dark); font-weight: 600; display: block; margin-bottom: 2px; }

.price-math {
  max-width: 760px;
  margin: var(--space-4) auto 0;
  background: var(--color-white);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.price-math table { width: 100%; border-collapse: collapse; }
.price-math th, .price-math td { padding: 12px 16px; text-align: left; font-size: 14px; border-bottom: 1px solid var(--border-subtle); color: var(--fg-2); }
.price-math th { font-family: var(--font-heading); font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.06em; color: var(--fg-3); background: var(--color-gray-100); }
.price-math td.tprice { font-family: var(--font-mono); font-weight: 600; color: var(--color-dark); text-align: right; }
.price-math tr:last-child td { border-bottom: 0; }

/* Order form */
.order-form {
  max-width: 760px;
  margin: var(--space-5) auto 0;
  background: var(--color-white);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  scroll-margin-top: 80px;
}
.order-form .ord-head {
  padding: var(--space-4) var(--space-5);
  background: var(--color-dark);
  color: #fff;
}
.order-form .ord-head h2 {
  font-family: var(--font-heading);
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: #fff;
  margin: 0 0 4px;
}
.order-form .ord-head p { margin: 0; color: #c7d1d3; font-size: 14px; }

.ord-section {
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--border-subtle);
}
.ord-section:last-child { border-bottom: 0; }
.ord-section h3 {
  font-family: var(--font-heading);
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-primary);
  margin: 0 0 var(--space-3);
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}
.ord-section h3 .num {
  display: inline-flex;
  width: 22px;
  height: 22px;
  background: var(--bg-primary-soft);
  color: var(--color-primary-dark);
  border-radius: var(--radius-sm);
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  margin-right: 10px;
}
.ord-section h3 .change-link {
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 500;
  color: var(--color-primary);
  text-transform: none;
  letter-spacing: normal;
  cursor: pointer;
  background: none;
  border: 0;
  padding: 0;
}
.ord-section h3 .change-link:hover { text-decoration: underline; }

.ord-summary { background: var(--color-gray-100); border-radius: var(--radius-md); padding: 14px 16px; }
.ord-summary .line {
  display: flex;
  justify-content: space-between;
  padding: 6px 0;
  font-size: 14px;
  color: var(--fg-2);
  border-bottom: 1px dashed var(--border-subtle);
}
.ord-summary .line:last-of-type { border-bottom: 0; }
.ord-summary .line.total {
  margin-top: 10px;
  padding-top: 12px;
  border-top: 1px solid var(--border-subtle);
  border-bottom: 0;
  font-weight: 600;
  color: var(--color-dark);
  font-size: 16px;
}
.ord-summary .line .price { font-family: var(--font-mono); color: var(--color-dark); font-weight: 500; }
.ord-summary .line.total .price { font-family: var(--font-heading); font-size: 20px; font-weight: 700; }

.form-grid { display: grid; gap: var(--space-2); }
.form-grid.cols-2 { grid-template-columns: 1fr 1fr; gap: var(--space-2); }
@media (max-width: 600px) { .form-grid.cols-2 { grid-template-columns: 1fr; } }
.field label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-dark);
  margin-bottom: 6px;
  font-family: var(--font-body);
}
.field label .opt { color: var(--fg-3); font-weight: 400; font-size: 12px; }
.field input, .field select, .field textarea {
  width: 100%;
  padding: 10px 12px;
  font-family: var(--font-body);
  font-size: 14.5px;
  color: var(--color-dark);
  background: var(--color-white);
  border: 1.5px solid var(--border-subtle);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(42, 143, 150, 0.12);
}
.field textarea { resize: vertical; min-height: 88px; font-family: var(--font-body); }
.field.error input, .field.error select { border-color: var(--color-accent); }
.field .errmsg { color: var(--color-accent); font-size: 12.5px; margin-top: 4px; }
.field .hint { font-size: 12.5px; color: var(--fg-3); margin-top: 4px; }

.checkbox-line {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13.5px;
  color: var(--fg-2);
  cursor: pointer;
  margin-top: 6px;
}
.checkbox-line input { width: 16px; height: 16px; accent-color: var(--color-primary); }

.ord-submit { padding: var(--space-4) var(--space-5); background: var(--color-light); border-top: 1px solid var(--border-subtle); }
.ord-submit .submit-btn { font-size: 16px; padding: 14px 20px; }

/* ---------- FAQ ---------- */
.faq { background: var(--color-white); border-bottom: 1px solid var(--border-subtle); }
.faq-group { margin-bottom: var(--space-5); }
.faq-group h3 {
  font-family: var(--font-heading);
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-primary);
  margin: 0 0 var(--space-2);
  padding-bottom: var(--space-2);
  border-bottom: 1px solid var(--border-subtle);
}
.faq-item {
  border-bottom: 1px solid var(--border-subtle);
}
.faq-q {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  width: 100%;
  text-align: left;
  background: none;
  border: 0;
  padding: 18px 0;
  font-family: var(--font-heading);
  font-size: 16px;
  font-weight: 600;
  color: var(--color-dark);
  cursor: pointer;
  letter-spacing: -0.01em;
}
.faq-q:hover { color: var(--color-primary); }
.faq-q .ic {
  width: 18px;
  height: 18px;
  color: var(--fg-3);
  transition: transform var(--transition-base);
  flex-shrink: 0;
}
.faq-item.open .faq-q .ic { transform: rotate(180deg); color: var(--color-primary); }
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow);
}
.faq-item.open .faq-a { max-height: 600px; }
.faq-a-inner { padding: 0 0 18px; font-size: 15px; line-height: 1.65; color: var(--fg-2); max-width: 64ch; }
.faq-a-inner code { font-size: 13px; }

/* ---------- Final CTA ---------- */
.final-cta { background: var(--color-light); border-bottom: 1px solid var(--border-subtle); }
.final-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  gap: var(--space-3);
  align-items: stretch;
}
@media (max-width: 880px) { .final-grid { grid-template-columns: 1fr; } }
.final-col {
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
}
.final-col.primary {
  background: var(--color-dark);
  color: #fff;
}
.final-col.primary h3 {
  font-family: var(--font-heading);
  font-size: clamp(28px, 3vw, 36px);
  font-weight: 600;
  letter-spacing: -0.025em;
  margin: 0 0 var(--space-2);
  color: #fff;
}
.final-col.primary p { color: #c7d1d3; font-size: 16px; margin: 0 0 var(--space-4); max-width: 36ch; }
.final-col.primary .small { color: #8da2a5; font-size: 13px; margin-top: var(--space-3); }
.final-col.primary .btn-primary { background: var(--color-primary); border-color: var(--color-primary); }
.final-col.primary .btn-primary:hover { background: var(--color-primary-dark); border-color: var(--color-primary-dark); }
.final-col.secondary {
  background: var(--color-white);
  border: 1px solid var(--border-subtle);
}
.final-col.secondary h3 {
  font-family: var(--font-heading);
  font-size: 22px;
  font-weight: 600;
  margin: 0 0 var(--space-2);
  letter-spacing: -0.015em;
}
.final-col.secondary p { font-size: 15px; line-height: 1.6; color: var(--fg-2); margin: 0 0 var(--space-3); }

/* ---------- Contact form ---------- */
.contact { background: var(--color-white); border-bottom: 1px solid var(--border-subtle); }
.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: var(--space-5);
  align-items: start;
}
@media (max-width: 880px) { .contact-grid { grid-template-columns: 1fr; } }
.contact-info { font-size: 15px; line-height: 1.6; color: var(--fg-2); }
.contact-info p { font-size: 15px; color: var(--fg-2); }
.contact-info .direct {
  padding: 14px 16px;
  background: var(--color-gray-100);
  border-radius: var(--radius-md);
  margin-top: var(--space-3);
}
.contact-info .direct strong { color: var(--color-dark); }
.contact-info .direct .line { display: flex; justify-content: space-between; gap: var(--space-2); padding: 4px 0; font-size: 13.5px; }

.contact-form {
  background: var(--color-light);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
}
.checkbox-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-1);
}
@media (max-width: 600px) { .checkbox-grid { grid-template-columns: 1fr; } }

/* ---------- Footer ---------- */
.site-footer { background: var(--color-dark); color: #c7d1d3; padding: var(--space-7) 0 var(--space-3); }
.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) repeat(3, 1fr);
  gap: var(--space-4);
}
@media (max-width: 760px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: var(--space-3); }
}
@media (max-width: 480px) {
  .footer-grid { grid-template-columns: 1fr; }
}
.footer-brand .brand-mark { background: #fff; color: var(--color-dark); }
.footer-brand .brand-name .a { color: #fff; }
.footer-brand .brand-name .b { color: var(--color-primary); }
.footer-brand p { color: #8da2a5; font-size: 13.5px; margin-top: 10px; max-width: 32ch; line-height: 1.55; }
.site-footer h5 {
  font-family: var(--font-heading);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
  color: #fff;
  margin: 0 0 var(--space-2);
}
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { padding: 4px 0; }
.site-footer a, .site-footer li a { color: #c7d1d3; font-size: 14px; text-decoration: none; }
.site-footer a:hover { color: #fff; text-decoration: none; }
.footer-bottom {
  margin-top: var(--space-5);
  padding-top: var(--space-2);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12.5px;
  color: #8da2a5;
}
@media (max-width: 480px) {
  .footer-bottom { flex-direction: column; gap: 8px; align-items: flex-start; }
}

/* ---------- Mobile bottom CTA bar ---------- */
.mobile-cta-bar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 60;
  padding: 10px 14px calc(10px + env(safe-area-inset-bottom));
  background: var(--color-white);
  border-top: 1px solid var(--border-subtle);
  box-shadow: 0 -4px 12px rgba(0, 0, 0, 0.05);
}
@media (max-width: 900px) {
  .mobile-cta-bar { display: block; }
  body { padding-bottom: 80px; }
}
.mobile-cta-bar .btn { width: 100%; justify-content: center; font-size: 15px; padding: 14px 16px; }

/* ---------- Utility ---------- */
.section-eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-primary);
  margin: 0 0 var(--space-2);
}
.section-head { max-width: 60ch; margin-bottom: var(--space-5); }
.section-head .lede { margin-top: var(--space-2); }
.text-center { text-align: center; }
.divider {
  height: 1px;
  background: var(--border-subtle);
  margin: var(--space-5) 0;
}
.muted { color: var(--fg-3); }