/* main.css — deferred load. All below-the-fold and secondary styles. */

/* ============ Utility grid helpers ============ */
.grid { display: grid; gap: var(--sp-24); }
.grid-2 { display: grid; gap: var(--sp-24); grid-template-columns: repeat(2, 1fr); }
.grid-3 { display: grid; gap: var(--sp-24); grid-template-columns: repeat(3, 1fr); }
.grid-4 { display: grid; gap: var(--sp-24); grid-template-columns: repeat(4, 1fr); }
@media (max-width: 960px) {
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

.section__head { max-width: 56ch; margin-bottom: var(--sp-48); }
.section__head--center { margin-left: auto; margin-right: auto; text-align: center; }
.section__head p { color: var(--c-fg-muted); font-size: var(--fs-18); }
.section--deep .section__head p { color: rgba(255,255,255,0.78); }

/* ============ Cards ============ */
.card {
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: var(--sp-32);
  box-shadow: var(--shadow-sm);
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease), border-color var(--dur) var(--ease);
  display: flex;
  flex-direction: column;
}
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: var(--c-border-strong); }
.card h3 { font-size: var(--fs-20); margin-bottom: var(--sp-8); }
.card p { color: var(--c-fg-muted); margin-bottom: var(--sp-16); }
.card__icon {
  width: 48px; height: 48px;
  border-radius: 12px;
  background: var(--g-core);
  display: flex; align-items: center; justify-content: center;
  color: #fff;
  margin-bottom: var(--sp-16);
  flex-shrink: 0;
}
.card__icon--energy { background: var(--g-energy); }
.card__icon--mint { background: var(--c-mint); }
.card__icon--violet { background: var(--c-violet); }
.card__link {
  margin-top: auto;
  font-weight: 600;
  color: var(--c-teal);
  display: inline-flex;
  align-items: center;
  gap: var(--sp-8);
}
.card__link::after { content: '→'; transition: transform var(--dur-fast) var(--ease); }
.card__link:hover::after { transform: translateX(3px); }

.card--deep {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  color: #fff;
}
.card--deep h3 { color: #fff; }
.card--deep p { color: rgba(255,255,255,0.78); }
.card--deep .card__link { color: var(--c-coral-300); }

/* ============ Stats ============ */
.stat {
  padding: var(--sp-32);
  background: #fff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--c-border);
  text-align: left;
}
.stat__value {
  display: block;
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 700;
  line-height: 1;
  background: var(--g-core);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--sp-8);
}
.stat__label { color: var(--c-fg-muted); font-size: var(--fs-16); }
.stat--energy .stat__value { background: var(--g-energy); -webkit-background-clip: text; background-clip: text; }

/* ============ Workflow explorer ============ */
.workflow-tabs {
  display: inline-flex;
  background: var(--c-bg-alt);
  border-radius: 999px;
  padding: 4px;
  margin-bottom: var(--sp-32);
  gap: 4px;
}
.section--deep .workflow-tabs { background: rgba(255,255,255,0.08); }
.workflow-tabs__tab {
  padding: 10px 20px;
  border-radius: 999px;
  font-weight: 600;
  color: var(--c-fg-muted);
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}
.section--deep .workflow-tabs__tab { color: rgba(255,255,255,0.7); }
.workflow-tabs__tab[aria-selected="true"] {
  background: #fff;
  color: var(--c-teal);
  box-shadow: var(--shadow-sm);
}
.section--deep .workflow-tabs__tab[aria-selected="true"] { background: #fff; color: var(--c-teal); }
.workflow-panel { display: none; }
.workflow-panel[data-active="true"] { display: block; }
.workflow-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--sp-16);
}
@media (max-width: 960px) { .workflow-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .workflow-grid { grid-template-columns: 1fr; } }
.workflow {
  padding: var(--sp-24);
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease);
  cursor: default;
}
.workflow:hover { transform: translateY(-2px); border-color: var(--c-mint); }
.workflow__num {
  display: inline-block;
  font-size: var(--fs-12);
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--c-mint);
  margin-bottom: var(--sp-8);
}
.workflow h4 { font-size: var(--fs-18); margin-bottom: var(--sp-8); }
.workflow p { font-size: var(--fs-14); color: var(--c-fg-muted); margin: 0; }

/* ============ Logos / social proof ============ */
.logos {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: var(--sp-48);
  opacity: 0.75;
}
.logos__item {
  height: 32px;
  display: inline-flex;
  align-items: center;
  font-weight: 700;
  color: var(--c-fg-muted);
  letter-spacing: 0.02em;
  font-size: var(--fs-18);
}

.testimonial {
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: var(--sp-48);
  max-width: 820px;
  margin: 0 auto;
  text-align: center;
  box-shadow: var(--shadow-sm);
}
.testimonial__quote {
  font-size: clamp(1.25rem, 2.2vw, 1.625rem);
  line-height: 1.45;
  color: var(--c-fg);
  margin-bottom: var(--sp-24);
  font-weight: 500;
}
.testimonial__author { color: var(--c-fg-muted); font-size: var(--fs-14); }
.testimonial__author strong { color: var(--c-fg); display: block; font-size: var(--fs-16); }

/* ============ Verticals strip ============ */
.vertical-strip {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-12);
  justify-content: center;
}
.vertical-pill {
  padding: 10px 20px;
  border-radius: 999px;
  background: #fff;
  border: 1px solid var(--c-border);
  font-weight: 600;
  color: var(--c-fg);
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.vertical-pill:hover { background: var(--c-teal); color: #fff; border-color: var(--c-teal); }

/* ============ Final CTA ============ */
.final-cta {
  background: var(--g-core);
  color: #fff;
  padding: var(--sp-80) var(--sp-24);
  border-radius: var(--radius-xl);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.final-cta::before {
  content: '';
  position: absolute;
  right: -10%;
  top: -40%;
  width: 400px; height: 400px;
  border-radius: 50%;
  background: radial-gradient(closest-side, rgba(255,200,87,0.3), transparent);
  pointer-events: none;
}
.final-cta h2 { color: #fff; max-width: 20ch; margin: 0 auto var(--sp-16); position: relative; }
.final-cta p { color: rgba(255,255,255,0.88); max-width: 48ch; margin: 0 auto var(--sp-32); position: relative; }
.final-cta__ctas { display: inline-flex; flex-wrap: wrap; gap: var(--sp-16); position: relative; justify-content: center; }

/* ============ Footer ============ */
.site-footer {
  background: var(--c-bg-deep);
  color: rgba(255,255,255,0.8);
  padding: var(--sp-80) 0 var(--sp-32);
  font-size: var(--fs-14);
}
.site-footer a { color: rgba(255,255,255,0.8); }
.site-footer a:hover { color: #fff; }
.site-footer__grid {
  display: grid;
  grid-template-columns: 1.4fr repeat(4, 1fr);
  gap: var(--sp-48);
  margin-bottom: var(--sp-48);
}
@media (max-width: 960px) { .site-footer__grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .site-footer__grid { grid-template-columns: 1fr; } }
.site-footer__col h4 {
  color: #fff;
  font-size: var(--fs-14);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--sp-16);
}
.site-footer__col ul { list-style: none; padding: 0; margin: 0; }
.site-footer__col li { margin-bottom: var(--sp-8); }
.site-footer__brand p { max-width: 36ch; color: rgba(255,255,255,0.7); margin-top: var(--sp-16); }
.site-footer__bottom {
  border-top: 1px solid rgba(255,255,255,0.12);
  padding-top: var(--sp-24);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--sp-16);
  color: rgba(255,255,255,0.55);
}
.site-footer__legal { display: flex; gap: var(--sp-24); flex-wrap: wrap; }

/* ============ Page hero (internal) ============ */
.page-hero {
  padding: clamp(3rem, 6vw, 5rem) 0 clamp(2.5rem, 4vw, 3.5rem);
  background: var(--g-depth);
  color: #fff;
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(ellipse at 80% 20%, rgba(46,196,182,0.2), transparent 55%);
  pointer-events: none;
}
.page-hero h1 { color: #fff; max-width: 22ch; }
.page-hero__sub { font-size: var(--fs-20); color: rgba(255,255,255,0.82); max-width: 56ch; }
.breadcrumbs {
  font-size: var(--fs-14);
  color: rgba(255,255,255,0.7);
  margin-bottom: var(--sp-16);
  display: flex;
  gap: var(--sp-8);
  flex-wrap: wrap;
  padding: 0;
  list-style: none;
  position: relative;
}
.breadcrumbs li { display: inline-flex; gap: var(--sp-8); align-items: center; }
.breadcrumbs li + li::before { content: '/'; opacity: 0.5; }
.breadcrumbs a { color: rgba(255,255,255,0.85); }
.breadcrumbs [aria-current] { color: #fff; font-weight: 500; }

/* ============ FAQ (details/summary) ============ */
.faq {
  display: grid;
  gap: var(--sp-12);
  max-width: 860px;
  margin: 0 auto;
}
.faq details {
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 0;
  overflow: hidden;
  transition: border-color var(--dur) var(--ease);
}
.faq details[open] { border-color: var(--c-mint); }
.faq summary {
  list-style: none;
  cursor: pointer;
  padding: var(--sp-24);
  font-weight: 600;
  font-size: var(--fs-18);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--sp-16);
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: '+';
  font-size: 1.5rem;
  color: var(--c-teal);
  transition: transform var(--dur) var(--ease);
  flex-shrink: 0;
}
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details > div {
  padding: 0 var(--sp-24) var(--sp-24);
  color: var(--c-fg-muted);
}

/* ============ Tables ============ */
.table-wrap { overflow-x: auto; border-radius: var(--radius-lg); border: 1px solid var(--c-border); background: #fff; }
table.compare {
  width: 100%;
  border-collapse: collapse;
  min-width: 640px;
}
table.compare th, table.compare td {
  padding: var(--sp-16) var(--sp-24);
  text-align: left;
  border-bottom: 1px solid var(--c-border);
}
table.compare thead th {
  background: var(--c-bg-alt);
  font-size: var(--fs-14);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--c-fg-muted);
}
table.compare tbody tr:last-child td { border-bottom: none; }
table.compare td[data-yes] { color: var(--c-teal); font-weight: 600; }

/* ============ Forms ============ */
.form {
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: var(--sp-32);
  box-shadow: var(--shadow-sm);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--sp-16); }
@media (max-width: 520px) { .form-row { grid-template-columns: 1fr; } }
.field { display: flex; flex-direction: column; margin-bottom: var(--sp-16); }
.field label { font-weight: 600; font-size: var(--fs-14); margin-bottom: var(--sp-8); color: var(--c-fg); }
.field label .req { color: var(--c-coral); margin-left: 2px; }
.field input, .field select, .field textarea {
  font: inherit;
  padding: 12px 14px;
  border: 1px solid var(--c-border-strong);
  border-radius: var(--radius-sm);
  background: #fff;
  color: var(--c-fg);
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.field input:focus, .field select:focus, .field textarea:focus {
  border-color: var(--c-mint);
  box-shadow: 0 0 0 3px rgba(46,196,182,0.2);
  outline: none;
}
.field textarea { min-height: 120px; resize: vertical; }
.field__hint { font-size: var(--fs-14); color: var(--c-fg-muted); margin-top: var(--sp-4); }
.field__error { color: var(--c-coral); font-size: var(--fs-14); margin-top: var(--sp-4); }
.honeypot { position: absolute; left: -9999px; top: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form__success {
  background: linear-gradient(135deg, rgba(46,196,182,0.1), rgba(91,95,255,0.05));
  border: 1px solid var(--c-mint);
  padding: var(--sp-24);
  border-radius: var(--radius);
  text-align: center;
}
.form__success h3 { color: var(--c-teal); }

/* ============ Feature split ============ */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-64);
  align-items: center;
}
@media (max-width: 860px) { .split { grid-template-columns: 1fr; gap: var(--sp-32); } }
.split__media {
  aspect-ratio: 4 / 3;
  border-radius: var(--radius-lg);
  background: var(--g-core);
  box-shadow: var(--shadow-lg);
}
.split__media--energy { background: var(--g-energy); }
.split__media--deep { background: var(--g-depth); }

/* ============ Pillars ============ */
.pillar {
  padding: var(--sp-32);
  border-radius: var(--radius-lg);
  border: 1px solid var(--c-border);
  background: #fff;
  position: relative;
}
.pillar__num {
  display: inline-flex;
  width: 40px; height: 40px;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  background: var(--c-bg-alt);
  color: var(--c-teal);
  font-weight: 700;
  margin-bottom: var(--sp-16);
}

/* ============ ROI calculator ============ */
.calculator {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-32);
}
@media (max-width: 860px) { .calculator { grid-template-columns: 1fr; } }
.calculator__result {
  background: var(--g-depth);
  color: #fff;
  padding: var(--sp-32);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: var(--sp-16);
  position: sticky;
  top: 96px;
  align-self: start;
}
.calculator__result h3 { color: #fff; }
.calculator__metric { display: flex; flex-direction: column; gap: 4px; }
.calculator__metric-value {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 700;
  background: var(--g-energy);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.calculator__metric-label { color: rgba(255,255,255,0.75); font-size: var(--fs-14); }

/* ============ Trust badges ============ */
.trust-badges {
  display: flex;
  gap: var(--sp-16);
  flex-wrap: wrap;
  align-items: center;
}
.trust-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-8);
  padding: 8px 14px;
  border-radius: 999px;
  background: #fff;
  border: 1px solid var(--c-border);
  font-size: var(--fs-14);
  font-weight: 600;
  color: var(--c-fg);
}
.trust-badge::before {
  content: '';
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--c-mint);
}
.section--deep .trust-badge { background: rgba(255,255,255,0.08); border-color: rgba(255,255,255,0.15); color: #fff; }

/* ============ Prose (blog/legal) ============ */
.prose { max-width: 72ch; margin: 0 auto; }
.prose h2 { margin-top: var(--sp-48); }
.prose h3 { margin-top: var(--sp-32); }
.prose p, .prose ul, .prose ol { color: var(--c-fg); line-height: 1.75; }
.prose ul, .prose ol { margin-bottom: var(--sp-16); }
.prose li { margin-bottom: var(--sp-8); }
.prose a { color: var(--c-teal); text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 3px; }
.prose blockquote {
  border-left: 4px solid var(--c-mint);
  padding: var(--sp-16) var(--sp-24);
  margin: var(--sp-24) 0;
  background: var(--c-bg-alt);
  border-radius: 0 var(--radius) var(--radius) 0;
  color: var(--c-fg-muted);
  font-style: italic;
}

/* ============ Scroll reveal ============ */
.reveal {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}
.reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; transition: none; } }