:root {
  color-scheme: dark;
  --bg: #050814;
  --bg-2: #09111f;
  --panel: rgba(15, 23, 42, 0.72);
  --panel-strong: rgba(15, 23, 42, 0.92);
  --line: rgba(148, 163, 184, 0.24);
  --text: #e5f0ff;
  --muted: #9fb0c6;
  --cyan: #23d3ff;
  --blue: #3b82f6;
  --violet: #8b5cf6;
  --green: #22c55e;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
  --radius: 24px;
  --font-body: "Inter", ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-display: "Sora", var(--font-body);
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  font-family: var(--font-body);
  font-size: 16px;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at 8% 8%, rgba(35, 211, 255, 0.16), transparent 28%),
    radial-gradient(circle at 92% 18%, rgba(139, 92, 246, 0.2), transparent 26%),
    linear-gradient(135deg, #020617, var(--bg) 40%, #07111f);
  min-height: 100vh;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(148, 163, 184, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(148, 163, 184, 0.055) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(to bottom, black, transparent 88%);
}

a {
  color: inherit;
  text-decoration: none;
}

.shell {
  width: min(1160px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(18px);
  background: rgba(2, 6, 23, 0.72);
  border-bottom: 1px solid var(--line);
}

.nav {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--cyan), var(--blue) 55%, var(--violet));
  color: white;
  font-weight: 900;
  box-shadow: 0 0 34px rgba(35, 211, 255, 0.28);
}

.brand-mark.logo-mark {
  padding: 8px;
}

.brand-mark.logo-mark img {
  width: 100%;
  height: 100%;
  display: block;
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-family: var(--font-display);
  font-size: 1.02rem;
  letter-spacing: 0.02em;
  line-height: 1.05;
}

.brand small {
  color: var(--muted);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  line-height: 1.3;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 22px;
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.nav-links.static {
  display: flex;
}

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

.nav-links a.home-button {
  color: var(--text);
  border: 1px solid rgba(35, 211, 255, 0.42);
  border-radius: 999px;
  padding: 9px 15px;
  background: rgba(35, 211, 255, 0.10);
  box-shadow: 0 0 24px rgba(35, 211, 255, 0.12);
}

.nav-cta,
.btn {
  border: 1px solid rgba(35, 211, 255, 0.42);
  border-radius: 999px;
  padding: 11px 18px;
  color: var(--text);
}

.nav-cta {
  background: rgba(35, 211, 255, 0.1);
}

.nav-toggle {
  display: none;
  border: 1px solid var(--line);
  background: rgba(15, 23, 42, 0.75);
  color: var(--text);
  border-radius: 12px;
  padding: 9px 12px;
}

.hero {
  min-height: calc(100vh - 76px);
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 54px;
  align-items: center;
  padding: 78px 0;
}

.eyebrow {
  margin: 0 0 16px;
  color: var(--cyan);
  text-transform: uppercase;
  font-size: 0.76rem;
  letter-spacing: 0.16em;
  font-weight: 800;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2,
h3 {
  font-family: var(--font-display);
  color: #edf6ff;
  text-wrap: balance;
}

h1 {
  max-width: 800px;
  font-size: clamp(3rem, 5.7vw, 5.7rem);
  line-height: 0.98;
  letter-spacing: -0.055em;
  margin-bottom: 24px;
  font-weight: 800;
}

h2 {
  font-size: clamp(2rem, 3.2vw, 3.35rem);
  line-height: 1.08;
  letter-spacing: -0.045em;
  margin-bottom: 18px;
  font-weight: 750;
}

h3 {
  font-size: 1.08rem;
  line-height: 1.25;
  letter-spacing: -0.02em;
  margin-bottom: 10px;
  font-weight: 700;
}

p {
  color: var(--muted);
  line-height: 1.68;
  letter-spacing: -0.006em;
}

.hero-lede {
  font-size: clamp(1.02rem, 1.2vw, 1.15rem);
  line-height: 1.75;
  max-width: 690px;
}

.hero-actions,
.trust-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.hero-actions {
  margin: 30px 0 28px;
}

.btn {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  font-size: 0.94rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  min-height: 46px;
}

.btn.primary {
  background: linear-gradient(135deg, var(--cyan), var(--blue));
  color: #03111f;
  border: 0;
  box-shadow: 0 16px 36px rgba(35, 211, 255, 0.22);
}

.btn.ghost {
  background: rgba(15, 23, 42, 0.58);
}

.btn.full {
  width: 100%;
}

.trust-row span {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 12px;
  color: #cbd5e1;
  background: rgba(15, 23, 42, 0.5);
  font-size: 0.84rem;
  font-weight: 600;
}

.hero-panel {
  border: 1px solid var(--line);
  border-radius: 34px;
  background:
    linear-gradient(135deg, rgba(15, 23, 42, 0.95), rgba(15, 23, 42, 0.62)),
    radial-gradient(circle at 50% 28%, rgba(35, 211, 255, 0.22), transparent 44%),
    radial-gradient(circle at 78% 72%, rgba(139, 92, 246, 0.2), transparent 38%);
  box-shadow: var(--shadow);
  padding: 28px;
  overflow: hidden;
}

.ai-panel {
  position: relative;
}

.ai-panel::before {
  content: "";
  position: absolute;
  inset: -40% -20% auto;
  height: 58%;
  background: conic-gradient(from 90deg, transparent, rgba(35, 211, 255, 0.14), transparent, rgba(139, 92, 246, 0.18), transparent);
  filter: blur(18px);
  opacity: 0.75;
  animation: driftGlow 12s linear infinite;
}

.ai-orb {
  position: relative;
  aspect-ratio: 1;
  min-height: 420px;
  border-radius: 30px;
  border: 1px solid rgba(35, 211, 255, 0.18);
  background:
    linear-gradient(120deg, rgba(35, 211, 255, 0.06) 1px, transparent 1px),
    linear-gradient(30deg, rgba(139, 92, 246, 0.05) 1px, transparent 1px),
    radial-gradient(circle at center, rgba(35, 211, 255, 0.18), transparent 36%),
    rgba(2, 6, 23, 0.48);
  background-size: 34px 34px, 42px 42px, auto, auto;
  box-shadow: inset 0 0 90px rgba(35, 211, 255, 0.08);
  overflow: hidden;
}

.ai-orb::before,
.ai-orb::after {
  content: "";
  position: absolute;
  inset: 14%;
  border-radius: 50%;
  border: 1px solid rgba(35, 211, 255, 0.16);
}

.ai-orb::after {
  inset: 27%;
  border-color: rgba(139, 92, 246, 0.22);
}

.ring {
  position: absolute;
  inset: 16%;
  border-radius: 50%;
  border: 1px dashed rgba(35, 211, 255, 0.42);
  animation: spin 18s linear infinite;
}

.ring.r2 {
  inset: 24%;
  border-color: rgba(139, 92, 246, 0.46);
  animation-duration: 24s;
  animation-direction: reverse;
}

.ring.r3 {
  inset: 34%;
  border-style: solid;
  border-color: rgba(34, 197, 94, 0.22);
  animation-duration: 30s;
}

.stream {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 46%;
  height: 2px;
  transform-origin: left center;
  background: linear-gradient(90deg, rgba(35, 211, 255, 0.88), rgba(139, 92, 246, 0.25), transparent);
  filter: drop-shadow(0 0 10px rgba(35, 211, 255, 0.8));
}

.stream.s1 { transform: rotate(18deg); }
.stream.s2 { transform: rotate(138deg); }
.stream.s3 { transform: rotate(258deg); }

.spark {
  position: absolute;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #dff8ff;
  box-shadow: 0 0 18px rgba(35, 211, 255, 0.9), 0 0 36px rgba(139, 92, 246, 0.55);
  animation: pulse 2.8s ease-in-out infinite;
}

.spark.p1 { top: 18%; left: 57%; }
.spark.p2 { top: 38%; right: 18%; animation-delay: 0.4s; }
.spark.p3 { bottom: 19%; left: 43%; animation-delay: 0.8s; }
.spark.p4 { top: 49%; left: 15%; animation-delay: 1.2s; }

.core {
  position: absolute;
  inset: 50% auto auto 50%;
  transform: translate(-50%, -50%);
  width: 128px;
  height: 128px;
  display: grid;
  place-items: center;
  align-content: center;
  border-radius: 34px;
  border: 1px solid rgba(35, 211, 255, 0.52);
  background:
    linear-gradient(135deg, rgba(35, 211, 255, 0.26), rgba(139, 92, 246, 0.24)),
    rgba(2, 6, 23, 0.84);
  box-shadow: 0 0 46px rgba(35, 211, 255, 0.24), inset 0 0 34px rgba(255, 255, 255, 0.05);
}

.core strong {
  font-family: var(--font-display);
  font-size: 2.6rem;
  line-height: 1;
  letter-spacing: -0.08em;
}

.core small {
  color: var(--cyan);
  font-size: 0.66rem;
  letter-spacing: 0.18em;
  font-weight: 900;
}

.ai-node {
  position: absolute;
  display: grid;
  place-items: center;
  min-width: 84px;
  min-height: 42px;
  padding: 8px 12px;
  border: 1px solid rgba(35, 211, 255, 0.36);
  border-radius: 999px;
  background: rgba(2, 6, 23, 0.86);
  color: #dff8ff;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  box-shadow: 0 0 28px rgba(35, 211, 255, 0.12);
}

.n1 { top: 10%; left: 38%; }
.n2 { top: 30%; right: 6%; }
.n3 { bottom: 26%; right: 6%; }
.n4 { bottom: 8%; left: 36%; }
.n5 { bottom: 26%; left: 4%; }
.n6 { top: 30%; left: 4%; }

.model-console {
  position: relative;
  margin-top: -52px;
  border: 1px solid rgba(35, 211, 255, 0.18);
  border-radius: 22px;
  background: rgba(2, 6, 23, 0.82);
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.28);
  padding: 14px;
  backdrop-filter: blur(18px);
}

.console-top,
.console-line {
  display: flex;
  align-items: center;
  gap: 10px;
}

.console-top {
  color: #dff8ff;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.console-top span {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 14px rgba(35, 211, 255, 0.65);
}

.console-top span:nth-child(2) { background: var(--violet); }
.console-top span:nth-child(3) { background: var(--green); }

.console-line {
  justify-content: space-between;
  border-top: 1px solid rgba(148, 163, 184, 0.12);
  padding: 10px 0 0;
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 0.76rem;
}

.console-line b {
  color: var(--cyan);
  font-weight: 800;
}

.console-line span {
  color: #cbd5e1;
}

.console-line i {
  color: var(--green);
  font-style: normal;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

@keyframes pulse {
  50% { transform: scale(1.8); opacity: 0.55; }
}

@keyframes driftGlow {
  to { transform: rotate(360deg); }
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin-top: 18px;
}

.metrics-grid div {
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(2, 6, 23, 0.45);
}

.metrics-grid strong,
.metrics-grid span {
  display: block;
}

.metrics-grid strong {
  color: var(--cyan);
  font-family: var(--font-display);
  font-size: 1rem;
  letter-spacing: -0.02em;
}

.metrics-grid span {
  color: var(--muted);
  font-size: 0.76rem;
  margin-top: 3px;
}

.section {
  padding: 88px 0;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 34px;
}

.section-heading p {
  font-size: 1.04rem;
  max-width: 700px;
}

.architecture,
.proof-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.architecture article,
.proof-grid article,
.contact-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  padding: 24px;
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.18);
}

.architecture article p,
.proof-grid article p,
.service-list p,
.contact-card li {
  font-size: 0.95rem;
}

.icon {
  display: inline-grid;
  place-items: center;
  width: 44px;
  height: 44px;
  margin-bottom: 20px;
  border-radius: 14px;
  background: rgba(35, 211, 255, 0.12);
  color: var(--cyan);
  font-weight: 900;
}

.dark {
  background:
    linear-gradient(135deg, rgba(2, 6, 23, 0.86), rgba(15, 23, 42, 0.94)),
    radial-gradient(circle at 85% 30%, rgba(59, 130, 246, 0.14), transparent 32%);
  border-block: 1px solid var(--line);
}

.split {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 48px;
  align-items: start;
}

.service-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.service-list div {
  border: 1px solid rgba(148, 163, 184, 0.18);
  border-radius: 20px;
  background: rgba(2, 6, 23, 0.42);
  padding: 22px;
}

.integration-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.integration-grid div {
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(15, 23, 42, 0.58);
  padding: 16px;
  font-size: 0.94rem;
  font-weight: 650;
  letter-spacing: -0.012em;
  color: #d9e7ff;
}

.proof {
  background: rgba(2, 6, 23, 0.42);
}

.proof-grid {
  grid-template-columns: repeat(2, 1fr);
}

.proof-grid strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.02rem;
  letter-spacing: -0.02em;
  color: var(--cyan);
  margin-bottom: 8px;
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 6px;
  color: #dff8ff;
  font-weight: 700;
  font-size: 0.9rem;
}

.card-link::after {
  content: "->";
  color: var(--cyan);
}

.cta {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 40px;
  align-items: center;
}

.contact-card ul {
  color: var(--muted);
  line-height: 1.9;
  padding-left: 20px;
  margin: 0 0 24px;
}

.footer {
  border-top: 1px solid var(--line);
  background: rgba(2, 6, 23, 0.78);
}

.footer-inner {
  min-height: 82px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  color: var(--muted);
  font-size: 0.88rem;
}

.library-hero {
  min-height: 460px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 42px;
  align-items: center;
  padding: 84px 0 56px;
}

.library-hero h1 {
  max-width: 760px;
  margin-bottom: 22px;
}

.access-panel {
  position: relative;
  border: 1px solid rgba(35, 211, 255, 0.28);
  border-radius: 28px;
  background:
    linear-gradient(145deg, rgba(15, 23, 42, 0.9), rgba(2, 6, 23, 0.72)),
    radial-gradient(circle at 15% 10%, rgba(35, 211, 255, 0.18), transparent 42%);
  box-shadow: var(--shadow);
  padding: 28px;
  overflow: hidden;
}

.access-panel::after {
  content: "";
  position: absolute;
  inset: auto -20% -45% 18%;
  height: 130px;
  background: radial-gradient(circle, rgba(34, 197, 94, 0.28), transparent 64%);
  filter: blur(18px);
}

.access-dot {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  margin-bottom: 20px;
  border-radius: 16px;
  background: rgba(34, 197, 94, 0.14);
  border: 1px solid rgba(34, 197, 94, 0.44);
  box-shadow: 0 0 30px rgba(34, 197, 94, 0.18);
}

.access-dot::before {
  content: "";
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 18px rgba(34, 197, 94, 0.8);
}

.access-panel strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.2rem;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}

.access-panel p {
  margin-bottom: 0;
}

.library-section {
  padding-top: 52px;
}

.howto-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.howto-card {
  min-height: 260px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(145deg, rgba(15, 23, 42, 0.78), rgba(2, 6, 23, 0.58)),
    radial-gradient(circle at 85% 12%, rgba(35, 211, 255, 0.08), transparent 38%);
  padding: 24px;
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.18);
}

.howto-card.featured {
  grid-column: span 2;
  background:
    linear-gradient(145deg, rgba(15, 23, 42, 0.86), rgba(2, 6, 23, 0.62)),
    radial-gradient(circle at 92% 8%, rgba(139, 92, 246, 0.18), transparent 42%),
    radial-gradient(circle at 8% 92%, rgba(35, 211, 255, 0.16), transparent 38%);
}

.howto-tag {
  display: inline-flex;
  margin-bottom: 18px;
  border: 1px solid rgba(35, 211, 255, 0.32);
  border-radius: 999px;
  background: rgba(35, 211, 255, 0.09);
  color: var(--cyan);
  padding: 7px 10px;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.howto-card h3 {
  font-size: 1.25rem;
  margin-bottom: 12px;
}

.howto-card p {
  font-size: 0.95rem;
  margin-bottom: 20px;
}

.howto-card .card-link {
  margin-top: auto;
}

@media (max-width: 980px) {
  .hero,
  .split,
  .cta,
  .library-hero {
    grid-template-columns: 1fr;
  }

  .architecture,
  .integration-grid,
  .howto-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .hero {
    padding-top: 48px;
    min-height: auto;
  }
}

@media (max-width: 720px) {
  .shell {
    width: min(100% - 28px, 1160px);
  }

  .nav-toggle {
    display: inline-flex;
  }

  .nav-links {
    position: absolute;
    inset: 76px 14px auto 14px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 16px;
    border: 1px solid var(--line);
    border-radius: 20px;
    background: var(--panel-strong);
  }

  .nav-links.open {
    display: flex;
  }

  h1 {
    font-size: clamp(2.45rem, 12vw, 4rem);
    line-height: 1.03;
    letter-spacing: -0.05em;
  }

  h2 {
    font-size: clamp(1.85rem, 9vw, 2.75rem);
  }

  .hero-lede,
  .section-heading p {
    font-size: 1rem;
  }

  .hero-panel {
    padding: 18px;
  }

  .ai-node {
    min-width: 68px;
    font-size: 0.66rem;
  }

  .ai-orb {
    min-height: 340px;
  }

  .model-console {
    margin-top: 14px;
  }

  .metrics-grid,
  .architecture,
  .service-list,
  .integration-grid,
  .proof-grid,
  .howto-grid {
    grid-template-columns: 1fr;
  }

  .howto-card.featured {
    grid-column: span 1;
  }

  .library-hero {
    min-height: auto;
    padding-top: 52px;
  }
}



body.howtos-protected .nav-toggle {
  display: none !important;
}

body.howtos-protected .nav-links {
  display: flex;
}

@media (max-width: 720px) {
  body.howtos-protected .nav {
    align-items: center;
    flex-direction: row;
    gap: 12px;
    min-height: 76px;
    padding: 0;
  }

  body.howtos-protected .brand span:last-child {
    display: none;
  }

  body.howtos-protected .nav-links {
    position: static;
    inset: auto;
    display: flex !important;
    flex: 1;
    flex-direction: row;
    align-items: center;
    gap: 14px;
    width: auto;
    overflow-x: auto;
    padding: 8px 0;
    border: 0;
    border-radius: 0;
    background: transparent;
    -webkit-overflow-scrolling: touch;
  }
}

body.howtos-protected {
  user-select: none;
  -webkit-user-select: none;
}

.protected-notice {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 18px;
  padding: 10px 14px;
  border: 1px solid rgba(34, 197, 94, 0.34);
  border-radius: 999px;
  color: #bbf7d0;
  background: rgba(22, 101, 52, 0.18);
  font-size: 0.86rem;
  font-weight: 800;
}

@media print {
  body.howtos-protected * {
    display: none !important;
  }

  body.howtos-protected::before {
    content: "Printing is disabled for TEK4 protected How-To content.";
    display: block !important;
    margin: 20vh auto 0;
    max-width: 640px;
    padding: 28px;
    border: 2px solid #0f172a;
    color: #0f172a;
    font: 700 22px/1.35 -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    text-align: center;
  }
}

@media print {
  .site-header,
  .hero-panel,
  .btn {
    display: none;
  }

  body {
    color: #111827;
    background: white;
  }

  p,
  .footer-inner,
  .contact-card ul {
    color: #374151;
  }
}


/* Unified TEK4 navigation sizing */
.site-header {
  min-height: 76px;
}

.nav {
  min-height: 76px;
}

.brand-mark,
.brand-mark.logo-mark {
  flex: 0 0 44px;
}

.nav-links,
.nav-links a,
.nav-cta {
  line-height: 1.2;
}

body.howtos-protected .site-header {
  min-height: 76px;
}

@media (max-width: 720px) {
  body.howtos-protected .site-header {
    min-height: 76px;
  }
}