/* 235 Electric — clean minimal, distinct from reference institute site */
:root {
  --color-bg: #f5f7fa;
  --color-surface: #ffffff;
  --color-ink: #0a1628;
  --color-ink-soft: #1e3a5f;
  --color-muted: #5a6b7d;
  --color-border: #dde3eb;
  --color-band: #eceff4;
  --color-accent: #0d9488;
  --color-accent-dark: #0f766e;
  --color-accent-glow: rgba(13, 148, 136, 0.12);
  --font-display: "Sora", system-ui, sans-serif;
  --font-body: "IBM Plex Sans", system-ui, sans-serif;
  --max-width: 68rem;
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 5rem;
  --radius: 2px;
  --radius-btn: 3px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1.05rem;
  line-height: 1.65;
  color: var(--color-ink);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

img,
svg {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--color-ink-soft);
  text-decoration: none;
  transition: color 0.15s ease;
}
a:hover {
  color: var(--color-accent);
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

/* Header */
.site-header {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  padding-top: 1.125rem;
  padding-bottom: 1.125rem;
}

.logo img {
  height: 64px;
  width: auto;
  max-width: min(280px, 55vw);
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-btn);
  padding: 0.4rem 0.75rem;
  cursor: pointer;
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.nav-main {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-main a {
  display: block;
  padding: 0.45rem 0.85rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-muted);
  border-radius: var(--radius-btn);
}

.nav-main a:hover {
  color: var(--color-ink);
  background: var(--color-band);
}

.nav-main a[aria-current="page"] {
  color: var(--color-ink);
  background: var(--color-accent-glow);
  box-shadow: inset 0 -2px 0 var(--color-accent);
}

.nav-cta {
  margin-left: 0.5rem;
}

.btn-nav {
  padding: 0.45rem 1rem;
  font-size: 0.85rem;
  background: var(--color-ink);
  color: #fff !important;
  border-radius: var(--radius-btn);
}

.btn-nav:hover {
  background: var(--color-ink-soft);
  color: #fff !important;
}

.nav-main .btn-nav[aria-current="page"] {
  background: var(--color-accent);
  box-shadow: none;
}

/* Hero — split layout, not centered gradient block */
.hero {
  background: var(--color-ink);
  color: #fff;
  padding: var(--space-xl) 0;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(120deg, transparent 20%, #000 70%);
  pointer-events: none;
}

.hero .container {
  position: relative;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: var(--space-lg);
  align-items: center;
}

.hero-content {
  max-width: 36rem;
}

.hero .label {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #5eead4;
  margin-bottom: var(--space-sm);
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.25rem, 4.5vw, 3.25rem);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin: 0 0 var(--space-md);
}

.hero-tagline {
  font-size: 1.125rem;
  font-weight: 400;
  color: rgba(255, 255, 255, 0.75);
  margin: 0 0 var(--space-md);
  line-height: 1.5;
}

.hero .lead {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.65);
  margin: 0 0 var(--space-lg);
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.hero-visual {
  display: flex;
  justify-content: flex-end;
}

.hero-card {
  width: 100%;
  max-width: 18rem;
  padding: var(--space-md);
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.04);
  backdrop-filter: blur(8px);
}

.hero-card dt {
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.45);
  margin: 0 0 0.2rem;
}

.hero-card dd {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 600;
  color: #fff;
  margin: 0 0 var(--space-sm);
  letter-spacing: -0.02em;
}

.hero-card dd:last-of-type {
  margin-bottom: 0;
}

.hero-card dd span {
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 400;
  color: rgba(255, 255, 255, 0.5);
  display: block;
  margin-top: 0.15rem;
}

@media (max-width: 768px) {
  .hero .container {
    grid-template-columns: 1fr;
  }
  .hero-visual {
    justify-content: flex-start;
  }
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.7rem 1.35rem;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 500;
  border-radius: var(--radius-btn);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.btn-primary {
  background: var(--color-accent);
  color: #fff;
}
.btn-primary:hover {
  background: var(--color-accent-dark);
  color: #fff;
}

.btn-secondary {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.35);
}
.btn-secondary:hover {
  border-color: #fff;
  color: #fff;
}

.btn-outline {
  background: transparent;
  color: var(--color-ink);
  border-color: var(--color-border);
}
.btn-outline:hover {
  border-color: var(--color-ink);
  color: var(--color-ink);
}

/* Sections */
.section {
  padding: var(--space-xl) 0;
}

.section--tight {
  padding: var(--space-lg) 0;
}

.section--band {
  background: var(--color-band);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.label {
  display: block;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-xs);
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 1.85rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--color-ink);
  margin: 0 0 var(--space-md);
  line-height: 1.2;
}

.section-subtitle {
  color: var(--color-muted);
  margin: 0 0 var(--space-lg);
  max-width: 38rem;
  font-size: 1.02rem;
}

.section-cta {
  margin-top: var(--space-lg);
}

/* Page hero (inner pages) */
.page-hero {
  padding: var(--space-lg) 0 var(--space-md);
  border-bottom: 1px solid var(--color-border);
  margin-bottom: var(--space-lg);
}

.page-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(1.85rem, 4vw, 2.5rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  margin: 0 0 var(--space-xs);
  line-height: 1.15;
}

.page-hero .lead {
  color: var(--color-muted);
  margin: 0;
  max-width: 36rem;
  font-size: 1.05rem;
}

/* Notice / pullquote — not EASI-style bordered banner */
.notice {
  padding: var(--space-md) 0 var(--space-md) var(--space-md);
  border-left: 3px solid var(--color-accent);
  margin-bottom: var(--space-lg);
}

.notice p {
  margin: 0;
  color: var(--color-muted);
  font-size: 0.98rem;
}

.notice strong {
  color: var(--color-ink);
}

.pullquote {
  margin: 0;
  padding: var(--space-lg) 0;
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 500;
  line-height: 1.45;
  color: var(--color-ink);
  letter-spacing: -0.01em;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.pullquote em {
  font-style: normal;
  color: var(--color-accent-dark);
}

/* Metrics row — not floating stat cards */
.metric-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  margin-top: var(--space-lg);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
}

.metric-row > div {
  padding: var(--space-md);
  border-right: 1px solid var(--color-border);
  text-align: left;
}

.metric-row > div:last-child {
  border-right: none;
}

.metric-row strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.65rem;
  font-weight: 600;
  letter-spacing: -0.03em;
  color: var(--color-ink);
  margin-bottom: 0.25rem;
}

.metric-row span {
  font-size: 0.82rem;
  color: var(--color-muted);
  line-height: 1.4;
}

@media (max-width: 640px) {
  .metric-row {
    grid-template-columns: 1fr 1fr;
  }
  .metric-row > div:nth-child(2) {
    border-right: none;
  }
  .metric-row > div:nth-child(1),
  .metric-row > div:nth-child(2) {
    border-bottom: 1px solid var(--color-border);
  }
}

/* Pillars — flat list, not numbered hover cards */
.pillar-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
  list-style: none;
  margin: 0;
  padding: 0;
}

.pillar-list li {
  padding-top: var(--space-md);
  border-top: 2px solid var(--color-accent);
}

.pillar-list h3 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  margin: 0 0 var(--space-xs);
  color: var(--color-ink);
}

.pillar-list p {
  margin: 0;
  font-size: 0.92rem;
  color: var(--color-muted);
  line-height: 1.55;
}

@media (max-width: 768px) {
  .pillar-list {
    grid-template-columns: 1fr;
  }
}

/* Tiles — bordered, no shadow lift */
.tile-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1px;
  background: var(--color-border);
  border: 1px solid var(--color-border);
}

.tile {
  background: var(--color-surface);
  padding: var(--space-md);
}

.tile h3 {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  margin: 0 0 var(--space-xs);
  color: var(--color-ink);
}

.tile p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--color-muted);
  line-height: 1.55;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1px;
  background: var(--color-border);
  border: 1px solid var(--color-border);
}

.card {
  background: var(--color-surface);
  padding: var(--space-md);
  border-radius: 0;
  box-shadow: none;
  transform: none;
}

.card:hover {
  box-shadow: none;
  transform: none;
}

.card-body {
  padding: 0;
}

.card h3,
.focus-area-body h3 {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  margin: 0 0 var(--space-xs);
}

.card p,
.focus-area-body p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--color-muted);
}

.focus-area-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.focus-area-card {
  padding-top: var(--space-md);
  border-top: 2px solid var(--color-accent);
  background: transparent;
  box-shadow: none;
  border-radius: 0;
}

.focus-area-card:hover {
  transform: none;
  box-shadow: none;
}

.focus-area-num {
  display: none;
}

.focus-area-body {
  padding: 0;
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
}

.stat-item {
  padding: var(--space-md);
  border-right: 1px solid var(--color-border);
  border-radius: 0;
  box-shadow: none;
  text-align: left;
}

.stat-item:last-child {
  border-right: none;
}

.stat-item strong {
  font-family: var(--font-display);
  font-size: 1.65rem;
  color: var(--color-ink);
}

.trust-banner {
  padding: var(--space-md) 0 var(--space-md) var(--space-md);
  border-left: 3px solid var(--color-accent);
  background: none;
  border-radius: 0;
  border-top: none;
  border-right: none;
  border-bottom: none;
}

.trust-banner p {
  margin: 0;
  color: var(--color-muted);
  font-size: 0.98rem;
}

.focus-question {
  margin: 0;
  padding: var(--space-lg) 0;
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 500;
  line-height: 1.45;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  border-left: none;
  background: none;
  border-radius: 0;
}

.mission-statement {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 500;
  line-height: 1.5;
  margin: 0 0 var(--space-md);
}

.two-col {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--space-xl);
  align-items: start;
}

@media (max-width: 768px) {
  .two-col {
    grid-template-columns: 1fr;
  }
  .focus-area-grid {
    grid-template-columns: 1fr;
  }
}

.product-diagram {
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  padding: var(--space-lg);
  border-radius: 0;
  box-shadow: none;
}

.diagram-caption {
  text-align: center;
  font-size: 0.85rem;
  color: var(--color-muted);
  margin: var(--space-sm) 0 0;
}

.product-visual {
  max-width: none;
}

.comparison-wrap {
  overflow-x: auto;
  margin: var(--space-md) auto;
  border: 1px solid var(--color-border);
  width: fit-content;
  max-width: 100%;
}

.comparison-table {
  width: max-content;
  max-width: 100%;
  border-collapse: collapse;
  font-size: 0.8rem;
  background: var(--color-surface);
  table-layout: auto;
}

.comparison-table th,
.comparison-table td {
  padding: 0.55rem 0.75rem;
  border-bottom: 1px solid var(--color-border);
  text-align: left;
  vertical-align: top;
  line-height: 1.3;
  width: auto;
}

.comparison-table thead th:not(:first-child),
.comparison-table tbody td:not(.col-product) {
  padding-left: 0.65rem;
  padding-right: 0.65rem;
}

.comparison-table tbody th {
  padding-right: 1rem;
}

.comparison-table .cell-primary {
  display: block;
  white-space: nowrap;
}

.comparison-table .cell-note {
  display: block;
  margin-top: 0.15rem;
  font-size: 0.68rem;
  font-weight: 400;
  line-height: 1.25;
  white-space: nowrap;
  color: var(--color-muted);
}

.comparison-table thead .cell-note {
  color: rgba(255, 255, 255, 0.78);
}

.comparison-table thead .cell-primary {
  font-weight: 600;
}

.comparison-table thead th {
  background: var(--color-ink);
  color: #fff;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.72rem;
  border-bottom: none;
  white-space: nowrap;
  text-align: center;
}

.comparison-table thead th.col-product {
  background: var(--color-accent-dark);
  color: #fff;
  border-bottom: 3px solid #5eead4;
  box-shadow: inset 4px 0 0 #5eead4;
}

.comparison-table thead th.col-product strong {
  color: #fff;
}

.comparison-table tbody th {
  font-weight: 600;
  color: var(--color-ink);
  background: var(--color-bg);
}

.comparison-table tbody th .cell-note {
  font-weight: 500;
}

.comparison-table tbody tr:last-child th,
.comparison-table tbody tr:last-child td {
  border-bottom: none;
}

.comparison-table tbody .col-product {
  background: var(--color-accent-glow);
  border-left: 4px solid var(--color-accent);
  font-weight: 500;
  color: var(--color-ink);
}

.callout {
  padding: var(--space-md);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  margin: var(--space-md) 0;
}

.callout p {
  margin: 0;
  font-size: 0.95rem;
  color: var(--color-muted);
}

.numbered-benefits {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: benefit;
}

.numbered-benefits > li {
  counter-increment: benefit;
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--color-border);
  padding-left: 3rem;
  position: relative;
}

.numbered-benefits > li::before {
  content: counter(benefit, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: var(--space-md);
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-accent);
  letter-spacing: 0.05em;
}

.numbered-benefits > li:last-child {
  border-bottom: none;
}

.numbered-benefits h3 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  margin: 0 0 var(--space-xs);
}

.numbered-benefits p {
  margin: 0;
  color: var(--color-muted);
  font-size: 0.95rem;
}

.page-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-top: var(--space-lg);
}

.prose ul {
  padding-left: 1.25rem;
  margin: 0 0 var(--space-md);
  color: var(--color-muted);
}

.prose li {
  margin-bottom: 0.5rem;
}

.prose li strong {
  color: var(--color-ink);
}

/* Contact */
.contact-layout {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: var(--space-xl);
  align-items: start;
}

.contact-panel {
  padding: var(--space-lg);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
}

.contact-details address {
  font-style: normal;
  line-height: 1.75;
  color: var(--color-muted);
  font-size: 0.95rem;
}

.form-group {
  margin-bottom: var(--space-md);
}

.form-group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: var(--space-xs);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.7rem 0.75rem;
  font-family: var(--font-body);
  font-size: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-btn);
  background: var(--color-bg);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  background: var(--color-surface);
}

.form-group textarea {
  min-height: 140px;
  resize: vertical;
}

/* Footer — light bar, not inverted navy slab */
.site-footer {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding: var(--space-lg) 0;
  margin-top: var(--space-xl);
}

.site-footer,
.site-footer a {
  color: var(--color-muted);
  font-size: 0.88rem;
}

.site-footer a:hover {
  color: var(--color-ink);
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
}

.footer-bottom p {
  margin: 0;
}

.footer-mark {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--color-ink);
  letter-spacing: -0.02em;
}

.section--compact {
  padding: var(--space-lg) 0;
}

.page-header {
  padding: var(--space-lg) 0 var(--space-md);
  border-bottom: 1px solid var(--color-border);
  margin-bottom: var(--space-lg);
}

.page-header h1 {
  font-family: var(--font-display);
  font-size: clamp(1.85rem, 4vw, 2.5rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  margin: 0 0 var(--space-xs);
}

.page-header .lead {
  color: var(--color-muted);
  margin: 0;
}

.page-header--compact {
  padding-bottom: var(--space-md);
}

.contact-form-wrap {
  max-width: none;
}

@media (max-width: 768px) {
  .contact-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .nav-toggle {
    display: block;
  }

  .site-header .container {
    position: relative;
  }

  .nav-main {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    padding: var(--space-sm);
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    box-shadow: 0 8px 24px rgba(10, 22, 40, 0.08);
  }

  .nav-main.is-open {
    display: flex;
  }

  .nav-cta {
    margin-left: 0;
  }

  .stat-grid {
    grid-template-columns: 1fr 1fr;
  }

  .stat-item:nth-child(2) {
    border-right: none;
  }

  .stat-item:nth-child(1),
  .stat-item:nth-child(2) {
    border-bottom: 1px solid var(--color-border);
  }
}