/* ══════════════════════════════════════════
   RESET & BASE
══════════════════════════════════════════ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --orange:      #FF7A00;
  --orange-dark: #E06800;
  --dark:        #0a0a0b;
  --dark-2:      #111113;
  --dark-3:      #1a1a1e;
  --dark-4:      #222226;
  --gray:        #888888;
  --gray-light:  #b0b0b8;
  --white:       #ffffff;
  --nav-h:       72px;
  --radius:      16px;
  --radius-lg:   24px;
  --transition:  0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

html { scroll-behavior: smooth; font-size: 16px; }

body {
  background: var(--dark);
  color: var(--white);
  font-family: 'Poppins', system-ui, sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a  { text-decoration: none; color: inherit; }
ul { list-style: none; }

/* ══════════════════════════════════════════
   UTILITIES
══════════════════════════════════════════ */
.gradient-text {
  background: linear-gradient(135deg, #FF7A00 0%, #FF4500 50%, #FF9A40 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-inner { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

.section-eyebrow {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--orange);
  margin-bottom: 16px;
  text-transform: uppercase;
}

.section-title {
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 700;
  line-height: 1.15;
  color: var(--white);
  margin-bottom: 24px;
}

.section-body {
  font-size: 1.05rem;
  color: var(--gray-light);
  line-height: 1.75;
  max-width: 540px;
  margin-bottom: 20px;
}

/* ══════════════════════════════════════════
   BUTTONS
══════════════════════════════════════════ */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--orange);
  color: var(--white);
  font-family: 'Poppins', sans-serif;
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  padding: 14px 32px;
  border-radius: 100px;
  border: none;
  cursor: pointer;
  transition: background var(--transition), transform 0.2s, box-shadow 0.2s;
  box-shadow: 0 0 0 0 rgba(255,122,0,0.4);
}
.btn-primary:hover {
  background: var(--orange-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(255,122,0,0.35);
}
.btn-primary.full-width { width: 100%; justify-content: center; }

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: var(--gray-light);
  font-family: 'Poppins', sans-serif;
  font-size: 0.9rem;
  font-weight: 500;
  padding: 14px 28px;
  border-radius: 100px;
  border: 1.5px solid rgba(255,255,255,0.15);
  cursor: pointer;
  transition: color var(--transition), border-color var(--transition), transform 0.2s;
}
.btn-ghost:hover {
  color: var(--white);
  border-color: rgba(255,255,255,0.4);
  transform: translateY(-2px);
}

/* ══════════════════════════════════════════
   SCROLL REVEAL
══════════════════════════════════════════ */
.scroll-reveal, .reveal {
  opacity: 0;
  transform: translateY(36px);
  transition: opacity 0.7s cubic-bezier(0.4,0,0.2,1), transform 0.7s cubic-bezier(0.4,0,0.2,1);
}
.scroll-reveal.visible, .reveal.visible {
  opacity: 1;
  transform: none;
}
[data-delay="100"] { transition-delay: 0.1s; }
[data-delay="200"] { transition-delay: 0.2s; }
[data-delay="300"] { transition-delay: 0.3s; }
[data-delay="400"] { transition-delay: 0.4s; }
[data-delay="500"] { transition-delay: 0.5s; }

/* ══════════════════════════════════════════
   NAVIGATION
══════════════════════════════════════════ */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  height: var(--nav-h);
  overflow: visible;
  transition: background 0.4s, backdrop-filter 0.4s, border-color 0.4s;
  border-bottom: 1px solid transparent;
}
#navbar.scrolled {
  background: rgba(10,10,11,0.82);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom-color: rgba(255,255,255,0.06);
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo { display: flex; align-items: center; }

/* Klein icoontje in navbar — verschijnt pas na scrollen */
.nav-logo-scrolled {
  height: 40px;
  width: auto;
  opacity: 0;
  transform: translateY(-6px);
  transition: opacity 0.35s, transform 0.35s;
}
#navbar.scrolled .nav-logo-scrolled {
  opacity: 1;
  transform: translateY(0);
}

/* Groot logo in hero — scrollt mee uit beeld */
.hero-logo-wrap {
  position: absolute;
  top: 24px;
  left: 120px;
  z-index: 5;
}
.hero-logo-img {
  width: 340px;
  height: auto;
  display: block;
}
.footer-logo { width: 200px; height: auto; margin-bottom: 20px; }
.footer-admin-link { color: rgba(255,255,255,0.2) !important; font-size: 0.78rem !important; }
.footer-admin-link:hover { color: var(--orange) !important; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
}
.nav-links a {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--gray-light);
  transition: color 0.25s;
}
.nav-links a:hover { color: var(--white); }
.nav-links .nav-cta {
  color: var(--white);
  background: var(--orange);
  padding: 9px 22px;
  border-radius: 100px;
  font-weight: 600;
  transition: background 0.25s, transform 0.2s;
}
.nav-links .nav-cta:hover { background: var(--orange-dark); transform: translateY(-1px); }

.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav-hamburger span {
  display: block; width: 24px; height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}

/* ══════════════════════════════════════════
   HERO
══════════════════════════════════════════ */
#hero {
  position: relative;
  width: 100%;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: var(--dark);
}

#hero-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 860px;
  padding: 0 24px;
  padding-top: var(--nav-h);
}

.hero-eyebrow {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  color: var(--orange);
  text-transform: uppercase;
  margin-bottom: 24px;
  transition-delay: 0.1s;
}

.hero-title {
  font-size: clamp(2.8rem, 6vw, 5.5rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin-bottom: 28px;
  transition-delay: 0.2s;
}

.hero-subtitle {
  font-size: clamp(1rem, 1.8vw, 1.2rem);
  color: rgba(255,255,255,0.65);
  line-height: 1.7;
  margin-bottom: 48px;
  transition-delay: 0.3s;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  transition-delay: 0.4s;
}

.hero-scroll-hint {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
}
.hero-scroll-hint span {
  display: block;
  width: 1.5px;
  height: 56px;
  background: linear-gradient(to bottom, rgba(255,122,0,0.8), transparent);
  animation: scrollLine 2s ease-in-out infinite;
}
@keyframes scrollLine {
  0%   { transform: scaleY(0); transform-origin: top; opacity: 1; }
  50%  { transform: scaleY(1); transform-origin: top; opacity: 1; }
  51%  { transform: scaleY(1); transform-origin: bottom; opacity: 1; }
  100% { transform: scaleY(0); transform-origin: bottom; opacity: 0; }
}

/* ══════════════════════════════════════════
   LOGO BELT
══════════════════════════════════════════ */
#logo-belt {
  background: var(--dark-2);
  border-top: 1px solid rgba(255,255,255,0.06);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  padding: 28px 0;
  overflow: hidden;
}

.belt-label {
  text-align: center;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  color: rgba(255,255,255,0.3);
  text-transform: uppercase;
  margin-bottom: 20px;
}

.belt-track { overflow: hidden; position: relative; }
.belt-track::before,
.belt-track::after {
  content: '';
  position: absolute;
  top: 0; bottom: 0;
  width: 120px;
  z-index: 2;
}
.belt-track::before { left: 0; background: linear-gradient(to right, var(--dark-2), transparent); }
.belt-track::after  { right: 0; background: linear-gradient(to left, var(--dark-2), transparent); }

.belt-items {
  display: flex;
  gap: 64px;
  width: max-content;
  animation: beltScroll 28s linear infinite;
}
.belt-items span {
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: rgba(255,255,255,0.35);
  text-transform: uppercase;
  white-space: nowrap;
  transition: color 0.3s;
}
.belt-items span:hover { color: var(--orange); }

@keyframes beltScroll {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* ══════════════════════════════════════════
   SERVICES
══════════════════════════════════════════ */
#services {
  padding: 120px 0;
  background: var(--dark);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 64px;
}

.service-card {
  background: var(--dark-3);
  border: 1px solid rgba(255,255,255,0.07);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  position: relative;
  overflow: hidden;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}
.service-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 70% 0%, rgba(255,122,0,0.06) 0%, transparent 60%);
  opacity: 0;
  transition: opacity var(--transition);
}
.service-card:hover {
  transform: translateY(-6px);
  border-color: rgba(255,122,0,0.3);
  box-shadow: 0 24px 60px rgba(0,0,0,0.4), 0 0 0 1px rgba(255,122,0,0.1);
}
.service-card:hover::before { opacity: 1; }

.service-card.featured {
  background: linear-gradient(135deg, rgba(255,122,0,0.12) 0%, var(--dark-3) 60%);
  border-color: rgba(255,122,0,0.25);
}

.card-badge {
  display: inline-block;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--orange);
  background: rgba(255,122,0,0.12);
  border: 1px solid rgba(255,122,0,0.25);
  padding: 4px 10px;
  border-radius: 100px;
  margin-bottom: 20px;
}

.card-icon {
  width: 52px; height: 52px;
  margin-bottom: 24px;
}
.card-icon svg { width: 100%; height: 100%; }

.service-card h3 {
  font-size: 1.18rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 12px;
}

.service-card p {
  font-size: 0.92rem;
  color: var(--gray-light);
  line-height: 1.65;
  margin-bottom: 24px;
}

.card-link {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--orange);
  transition: gap 0.2s, color 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.card-link:hover { color: #FF9A40; }

/* ══════════════════════════════════════════
   INTEGRATIONS
══════════════════════════════════════════ */
#integrations {
  padding: 120px 0;
  background: var(--dark-2);
}

.integrations-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.integration-list {
  margin: 32px 0 40px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.integration-list li {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 0.98rem;
  color: var(--gray-light);
}
.integration-list li svg { width: 22px; height: 22px; flex-shrink: 0; }

/* Integration Hub */
.integrations-visual { display: flex; justify-content: center; }

.integration-hub {
  position: relative;
  width: 380px;
  height: 380px;
}

.hub-center {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%,-50%);
  width: 80px; height: 80px;
  background: rgba(255,122,0,0.15);
  border: 2px solid rgba(255,122,0,0.4);
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
  box-shadow: 0 0 40px rgba(255,122,0,0.2);
}
.hub-center img { width: 52px; }

.hub-orbit {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.07);
}
.orbit-1 { width: 260px; height: 260px; animation: orbitSpin 20s linear infinite; }
.orbit-2 { width: 370px; height: 370px; animation: orbitSpin 30s linear infinite reverse; }

@keyframes orbitSpin {
  from { transform: translate(-50%, -50%) rotate(0deg); }
  to   { transform: translate(-50%, -50%) rotate(360deg); }
}

.hub-node {
  position: absolute;
  top: 50%; left: 50%;
  width: 52px; height: 52px;
  margin: -26px 0 0 -26px;
  transform: rotate(calc(var(--angle))) translateY(-130px) rotate(calc(-1 * var(--angle)));
}
.orbit-2 .hub-node {
  transform: rotate(calc(var(--angle))) translateY(-185px) rotate(calc(-1 * var(--angle)));
}

.hub-node span {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%; height: 100%;
  background: var(--dark-3);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 12px;
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--gray-light);
  transition: border-color 0.3s, color 0.3s, background 0.3s;
  letter-spacing: 0.04em;
}
.hub-node:hover span {
  border-color: rgba(255,122,0,0.5);
  color: var(--orange);
  background: rgba(255,122,0,0.08);
}

.hub-node.small { width: 44px; height: 44px; margin: -22px 0 0 -22px; }
.hub-node.small span { font-size: 0.62rem; border-radius: 10px; }

/* ══════════════════════════════════════════
   STATS
══════════════════════════════════════════ */
#stats {
  padding: 80px 0;
  background: var(--dark);
  border-top: 1px solid rgba(255,255,255,0.05);
  border-bottom: 1px solid rgba(255,255,255,0.05);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  text-align: center;
}

.stat-item { padding: 20px; }
.stat-item .stat-number {
  font-size: clamp(2.4rem, 4vw, 3.6rem);
  font-weight: 800;
  color: var(--orange);
  line-height: 1;
}
.stat-item .stat-suffix {
  font-size: clamp(1.4rem, 2.5vw, 2rem);
  font-weight: 700;
  color: var(--orange);
}
.stat-item p {
  font-size: 0.9rem;
  color: var(--gray);
  margin-top: 10px;
  font-weight: 500;
}

/* ══════════════════════════════════════════
   ABOUT
══════════════════════════════════════════ */
#about {
  padding: 120px 0;
  background: var(--dark-2);
}

.about-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about-card-stack {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.about-card {
  border-radius: var(--radius-lg);
  padding: 36px;
  border: 1px solid rgba(255,255,255,0.08);
  width: auto;
}
.card-back {
  background: var(--dark-4);
  transform: translateX(28px);
}
.card-front {
  background: linear-gradient(135deg, rgba(255,122,0,0.1) 0%, var(--dark-3) 100%);
  border-color: rgba(255,122,0,0.2);
  transform: translateX(-28px);
}

.card-tag {
  display: inline-block;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--orange);
  background: rgba(255,122,0,0.1);
  padding: 4px 10px;
  border-radius: 100px;
  margin-bottom: 16px;
}
.about-card p {
  font-size: 1.05rem;
  color: var(--gray-light);
  line-height: 1.65;
  margin-bottom: 24px;
}
.card-values {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.card-values span {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--orange);
  background: rgba(255,122,0,0.1);
  border: 1px solid rgba(255,122,0,0.2);
  padding: 5px 12px;
  border-radius: 100px;
}

/* ══════════════════════════════════════════
   CTA BAND
══════════════════════════════════════════ */
#cta-band {
  position: relative;
  padding: 120px 24px;
  overflow: hidden;
  background: var(--dark);
  text-align: center;
}
#cta-canvas {
  position: absolute;
  inset: 0; width: 100%; height: 100%;
  z-index: 0;
  opacity: 0.5;
}
.cta-content {
  position: relative;
  z-index: 2;
  max-width: 700px;
  margin: 0 auto;
}
.cta-content h2 {
  font-size: clamp(2rem, 4vw, 3.4rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 20px;
}
.cta-content p {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.6);
  margin-bottom: 40px;
}

/* ══════════════════════════════════════════
   CONTACT
══════════════════════════════════════════ */
#contact {
  padding: 120px 0;
  background: var(--dark-2);
}

.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

.contact-details {
  margin-top: 36px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.contact-item {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 0.95rem;
  color: var(--gray-light);
}
.contact-item svg { width: 22px; height: 22px; flex-shrink: 0; }

.contact-form {
  background: var(--dark-3);
  border: 1px solid rgba(255,255,255,0.07);
  border-radius: var(--radius-lg);
  padding: 40px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.form-group { display: flex; flex-direction: column; gap: 8px; }
.form-group label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--gray-light);
  letter-spacing: 0.04em;
}
.form-group input,
.form-group textarea {
  background: var(--dark-4);
  border: 1.5px solid rgba(255,255,255,0.08);
  border-radius: 12px;
  padding: 14px 18px;
  color: var(--white);
  font-family: 'Poppins', sans-serif;
  font-size: 0.92rem;
  outline: none;
  transition: border-color 0.25s, box-shadow 0.25s;
  resize: vertical;
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: rgba(255,255,255,0.22); }
.form-group input:focus,
.form-group textarea:focus {
  border-color: rgba(255,122,0,0.5);
  box-shadow: 0 0 0 3px rgba(255,122,0,0.1);
}

/* ══════════════════════════════════════════
   FOOTER
══════════════════════════════════════════ */
#footer {
  background: var(--dark);
  border-top: 1px solid rgba(255,255,255,0.07);
  padding: 72px 0 0;
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px 64px;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 60px;
}

.footer-brand .footer-logo { width: 200px; height: auto; margin-bottom: 20px; }
.footer-brand p {
  font-size: 0.88rem;
  color: var(--gray);
  line-height: 1.65;
  max-width: 280px;
}

.footer-nav h4 {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--white);
  margin-bottom: 20px;
}
.footer-nav ul { display: flex; flex-direction: column; gap: 12px; }
.footer-nav ul a {
  font-size: 0.88rem;
  color: var(--gray);
  transition: color 0.2s;
}
.footer-nav ul a:hover { color: var(--orange); }

.footer-bottom {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px 24px;
  border-top: 1px solid rgba(255,255,255,0.06);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.footer-bottom p { font-size: 0.82rem; color: rgba(255,255,255,0.3); }
.footer-links { display: flex; gap: 24px; }
.footer-links a {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.3);
  transition: color 0.2s;
}
.footer-links a:hover { color: var(--orange); }

/* ══════════════════════════════════════════
   RESPONSIVE
══════════════════════════════════════════ */
@media (max-width: 1024px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .integrations-layout,
  .about-layout,
  .contact-layout { grid-template-columns: 1fr; gap: 48px; }
  .integrations-visual { order: -1; }
  .about-card-stack { gap: 16px; }
  .card-back, .card-front { transform: none; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .hero-logo-wrap {
    left: 50%;
    transform: translateX(-50%);
  }
  .hero-logo-img {
    width: 75vw;
    max-width: 380px;
  }
  .nav-links { display: none; }
  .nav-hamburger { display: flex; }
  #navbar.menu-open .nav-links {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: var(--nav-h);
    left: 0; right: 0;
    background: rgba(10,10,11,0.97);
    backdrop-filter: blur(20px);
    padding: 32px 24px 40px;
    gap: 24px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
  }
  .nav-links .nav-cta { width: max-content; }
  .services-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .form-row { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; gap: 40px; }
  .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
  .integration-hub { width: 300px; height: 300px; }
  .orbit-2 { width: 290px; height: 290px; }
  .hub-node { transform: rotate(calc(var(--angle))) translateY(-100px) rotate(calc(-1 * var(--angle))); }
  .orbit-2 .hub-node { transform: rotate(calc(var(--angle))) translateY(-145px) rotate(calc(-1 * var(--angle))); }
}

/* Landscape op mobiel: logo kleiner + hero-tekst onder het logo */
@media (max-width: 900px) and (orientation: landscape) {
  .hero-logo-img {
    width: 200px;
    max-width: 200px;
  }
  .hero-content {
    padding-top: calc(var(--nav-h) + 90px);
  }
}

@media (max-width: 480px) {
  .hero-actions { flex-direction: column; align-items: stretch; text-align: center; }
  .btn-primary, .btn-ghost { justify-content: center; }
  .about-card { padding: 24px; }
}