/* Reusable UI components */

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: var(--space-2);
  padding: 14px 24px;
  border-radius: var(--radius-pill);
  font-weight: var(--fw-semibold);
  font-size: var(--fs-md);
  line-height: 1;
  transition: transform var(--t-fast) var(--ease-out),
              box-shadow var(--t-base) var(--ease-out),
              background var(--t-base) var(--ease-out),
              color var(--t-base) var(--ease-out);
  white-space: nowrap;
  cursor: pointer;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn .arrow { transition: transform var(--t-fast) var(--ease-out); }
.btn:hover .arrow { transform: translateX(3px); }

.btn-primary {
  background: var(--gradient-cta);
  color: #fff;
  box-shadow: var(--shadow-glow);
}
.btn-primary:hover { box-shadow: 0 18px 42px -10px rgba(46, 95, 230, 0.55); color: #fff; }

.btn-secondary {
  background: var(--color-white);
  color: var(--color-primary-700);
  border: 1px solid var(--color-ink-200);
  box-shadow: var(--shadow-sm);
}
.btn-secondary:hover { border-color: var(--color-primary-400); color: var(--color-primary-600); }

.btn-ghost {
  background: transparent;
  color: var(--color-primary-600);
  padding: 12px 8px;
}
.btn-ghost:hover { color: var(--color-primary-700); }

.btn-on-dark {
  background: rgba(255,255,255,0.08);
  color: #fff;
  border: 1px solid rgba(255,255,255,0.2);
  backdrop-filter: blur(8px);
}
.btn-on-dark:hover { background: rgba(255,255,255,0.16); color: #fff; }

/* ---------- Site Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: var(--z-header);
  background: rgba(255,255,255,0.85);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: background var(--t-base) var(--ease-out),
              border-color var(--t-base) var(--ease-out),
              box-shadow var(--t-base) var(--ease-out);
}
.site-header.is-scrolled {
  background: rgba(255,255,255,0.95);
  border-bottom-color: var(--color-ink-100);
  box-shadow: var(--shadow-sm);
}
.site-header__inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: var(--space-5);
  padding-block: 14px;
}
.site-logo {
  display: inline-flex; align-items: center; gap: var(--space-2);
  font-family: var(--font-display);
  font-weight: var(--fw-bold);
  font-size: 1.25rem;
  color: var(--color-ink-900);
  letter-spacing: -0.02em;
}
.site-logo img { height: 36px; width: auto; }
.site-logo span.tld { color: var(--color-primary-600); }

.primary-nav { display: none; gap: var(--space-5); }
.primary-nav a {
  position: relative;
  font-weight: var(--fw-medium);
  color: var(--color-ink-700);
  font-size: var(--fs-md);
  padding: 8px 4px;
}
.primary-nav a::after {
  content: ""; position: absolute; left: 4px; right: 4px; bottom: 2px;
  height: 2px; background: var(--gradient-cta); border-radius: 2px;
  transform: scaleX(0); transform-origin: left;
  transition: transform var(--t-base) var(--ease-out);
}
.primary-nav a:hover, .primary-nav a[aria-current="page"] { color: var(--color-primary-700); }
.primary-nav a:hover::after, .primary-nav a[aria-current="page"]::after { transform: scaleX(1); }

.nav-cta { display: none; }

.burger {
  display: inline-flex; flex-direction: column; gap: 5px;
  padding: 10px;
  border-radius: var(--radius-sm);
}
.burger span { width: 22px; height: 2px; background: var(--color-ink-900); border-radius: 2px; transition: transform var(--t-base) var(--ease-out), opacity var(--t-fast); }
.burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-nav {
  position: fixed; inset: 64px 0 0 0;
  background: #fff;
  padding: var(--space-6) var(--container-pad) var(--space-7);
  display: none;
  flex-direction: column; gap: var(--space-3);
  z-index: var(--z-overlay);
  overflow-y: auto;
  border-top: 1px solid var(--color-ink-100);
}
.mobile-nav.is-open { display: flex; }
.mobile-nav a {
  font-size: var(--fs-xl); font-weight: var(--fw-semibold);
  padding: 12px 0; border-bottom: 1px solid var(--color-ink-100);
  color: var(--color-ink-900);
}
.mobile-nav .btn { margin-top: var(--space-4); justify-content: center; }

@media (min-width: 960px) {
  .primary-nav { display: flex; }
  .nav-cta { display: inline-flex; }
  .burger { display: none; }
  .mobile-nav { display: none !important; }
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: clamp(4rem, 7vw, 7rem) 0 clamp(4rem, 7vw, 6rem);
  background: var(--gradient-hero);
  overflow: hidden;
}
.hero::after {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(2px 2px at 20% 30%, rgba(46,95,230,0.18), transparent 60%),
    radial-gradient(2px 2px at 80% 70%, rgba(0,212,255,0.2), transparent 60%);
  pointer-events: none;
}
.hero__inner { position: relative; z-index: 1; }
.hero__grid {
  display: grid; gap: var(--space-7);
  grid-template-columns: 1fr;
  align-items: center;
}
@media (min-width: 960px) {
  .hero__grid { grid-template-columns: 1.1fr 0.9fr; gap: var(--space-8); }
}
.hero h1 {
  font-size: var(--fs-5xl);
  color: var(--color-navy-900);
}
.hero h1.eyebrow {
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  letter-spacing: 0.08em;
  color: var(--color-primary-600);
}
.hero__headline {
  font-family: var(--font-display);
  font-size: var(--fs-5xl);
  font-weight: var(--fw-bold);
  line-height: var(--lh-tight);
  letter-spacing: -0.025em;
  color: var(--color-navy-900);
  margin-block: 0;
}
.hero__headline .accent {
  background: var(--gradient-cta);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero__lead { font-size: var(--fs-lg); color: var(--color-ink-500); margin-block: var(--space-5); max-width: 56ch; }
.hero__ctas { display: flex; flex-wrap: wrap; gap: var(--space-3); margin-top: var(--space-5); }
.hero__meta { display: flex; gap: var(--space-5); margin-top: var(--space-7); flex-wrap: wrap; }
.hero__meta-item { display: flex; align-items: center; gap: var(--space-2); font-size: var(--fs-sm); color: var(--color-ink-500); }
.hero__meta-item svg { color: var(--color-success); flex-shrink: 0; }

.hero__visual {
  position: relative;
  max-width: 480px;
  margin-inline: auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  padding-top: var(--space-4);
}
.hero__orb {
  position: absolute; inset: 10%;
  border-radius: 50%;
  background: var(--gradient-cta);
  filter: blur(60px); opacity: 0.25;
  animation: pulse 8s ease-in-out infinite;
  pointer-events: none;
}
.hero__step-card {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  background: var(--color-white);
  border: 1px solid var(--color-ink-100);
  border-left: 3px solid var(--color-primary-500);
  border-radius: var(--radius-lg);
  padding: var(--space-4) var(--space-5);
  box-shadow: var(--shadow-md);
}
.hero__step-num {
  flex-shrink: 0;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--gradient-cta);
  color: var(--color-white);
  font-weight: var(--fw-bold);
  font-size: var(--fs-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 1px;
}
.hero__step-title {
  font-weight: var(--fw-semibold);
  font-size: var(--fs-md);
  color: var(--color-ink-900);
  margin-bottom: var(--space-1);
}
.hero__step-desc {
  font-size: var(--fs-sm);
  color: var(--color-ink-500);
  line-height: 1.45;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 0.35; }
  50% { transform: scale(1.08); opacity: 0.5; }
}

/* ---------- Trust bar ---------- */
.trust-bar {
  padding: var(--space-5) 0;
  background: var(--color-white);
  border-block: 1px solid var(--color-ink-100);
}
.trust-bar__inner { display: flex; flex-wrap: wrap; gap: var(--space-3) var(--space-5); align-items: center; justify-content: center; }
.trust-bar__label { font-size: var(--fs-sm); color: var(--color-ink-500); font-weight: var(--fw-medium); }
.trust-bar__cities { display: flex; flex-wrap: wrap; gap: var(--space-3); justify-content: center; }
.trust-bar__cities a {
  font-size: var(--fs-sm); color: var(--color-ink-700);
  font-weight: var(--fw-semibold);
  display: inline-flex; align-items: center; gap: 6px;
  text-decoration: none;
  transition: color 0.15s ease;
}
.trust-bar__cities a:hover { color: var(--color-primary-600); }
.trust-bar__cities a::before {
  content: ""; width: 4px; height: 4px; border-radius: 50%; background: var(--color-primary-500);
  transition: transform 0.15s ease;
}
.trust-bar__cities a:hover::before { transform: scale(1.4); }

/* ---------- Cards ---------- */
.card {
  background: var(--surface-card);
  border: 1px solid var(--color-ink-100);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition: transform var(--t-base) var(--ease-out),
              box-shadow var(--t-base) var(--ease-out),
              border-color var(--t-base) var(--ease-out);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  height: 100%;
}
.card > .price,
.card > [data-price] {
  margin-top: auto;
  padding-top: var(--space-5);
  font-family: var(--font-display);
  font-size: 1.6rem;
  color: var(--color-primary-700);
  font-weight: var(--fw-bold);
}
.card-feature > .price { color: var(--color-primary-300); }
.card .card__link { margin-top: auto; align-self: flex-start; }
.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary-300);
}
.card__icon {
  width: 52px; height: 52px;
  border-radius: var(--radius-md);
  background: var(--color-primary-50);
  color: var(--color-primary-600);
  display: inline-flex; align-items: center; justify-content: center;
  margin-bottom: var(--space-4);
}
.card h3 { font-size: 1.3rem; margin-bottom: var(--space-2); }
.card p { font-size: var(--fs-md); color: var(--color-ink-500); }
.card__link {
  margin-top: var(--space-4);
  display: inline-flex; align-items: center; gap: var(--space-2);
  color: var(--color-primary-600); font-weight: var(--fw-semibold);
}
.card__link .arrow { transition: transform var(--t-fast) var(--ease-out); }
.card:hover .card__link .arrow { transform: translateX(3px); }

.card-feature {
  background: var(--gradient-dark);
  color: #fff;
  border: 0;
}
.card-feature h3, .card-feature h4 { color: #fff; }
.card-feature p { color: var(--color-ink-200); }
.card-feature .card__icon { background: rgba(255,255,255,0.1); color: var(--color-primary-400); }
.card-feature .card__link { color: var(--color-primary-300); }
.card-feature .check-list li { color: var(--color-ink-100); }
.card-feature .check-list li strong { color: #fff; }
.card-feature .eyebrow { color: var(--color-primary-300); }
.card-feature .eyebrow::before { background: var(--gradient-cta); }

/* ---------- USP / Feature grid ---------- */
.feature {
  display: flex; gap: var(--space-4); align-items: flex-start;
}
.feature__icon {
  flex-shrink: 0;
  width: 48px; height: 48px; border-radius: var(--radius-md);
  background: var(--color-primary-50);
  color: var(--color-primary-600);
  display: inline-flex; align-items: center; justify-content: center;
}
.feature h4 { font-size: 1.15rem; margin-bottom: var(--space-2); }
.feature p { font-size: var(--fs-md); }

/* ---------- Process Steps ---------- */
.steps {
  counter-reset: step;
  display: grid; gap: var(--space-5);
}
.step {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: var(--space-4);
  padding: var(--space-5);
  background: var(--surface-card);
  border: 1px solid var(--color-ink-100);
  border-radius: var(--radius-lg);
  position: relative;
}
.step::before {
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  font-family: var(--font-display);
  font-size: 2.4rem;
  font-weight: var(--fw-bold);
  background: var(--gradient-cta);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1;
}
.step h4 { font-size: 1.25rem; margin-bottom: var(--space-2); }

/* ---------- Compare Table ---------- */
.compare {
  background: var(--surface-card);
  border: 1px solid var(--color-ink-100);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.compare__head, .compare__row {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: var(--space-4);
  padding: var(--space-4) var(--space-5);
  align-items: center;
}
.compare__head {
  background: var(--color-primary-50);
  font-weight: var(--fw-semibold);
  font-family: var(--font-display);
  color: var(--color-navy-900);
}
.compare__head > div:nth-child(2) { color: var(--color-ink-500); }
.compare__head > div:nth-child(3) { color: var(--color-primary-700); }
.compare__row { border-top: 1px solid var(--color-ink-100); }
.compare__row > div:first-child { font-weight: var(--fw-semibold); color: var(--color-ink-900); }
.compare__row > div:nth-child(2) { color: var(--color-ink-500); }
.compare__row > div:nth-child(3) { color: var(--color-primary-700); font-weight: var(--fw-medium); }
@media (max-width: 720px) {
  .compare__head, .compare__row { grid-template-columns: 1fr; gap: 4px; padding: var(--space-3) var(--space-4); }
  .compare__head > div:nth-child(2)::before { content: "Klassisches SEO · "; }
  .compare__head > div:nth-child(3)::before { content: "AI-SEO / GEO · "; }
  .compare__row > div:nth-child(2)::before { content: "Klassisch: "; color: var(--color-ink-400); font-weight: 500; }
  .compare__row > div:nth-child(3)::before { content: "AI-SEO: "; color: var(--color-primary-400); font-weight: 500; }
}

/* ---------- City tiles ---------- */
.cities {
  display: grid; gap: var(--space-3);
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}
.city-tile {
  display: flex; align-items: center; justify-content: space-between;
  padding: var(--space-4) var(--space-5);
  background: var(--surface-card);
  border: 1px solid var(--color-ink-100);
  border-radius: var(--radius-md);
  transition: all var(--t-base) var(--ease-out);
  font-weight: var(--fw-semibold);
  color: var(--color-ink-900);
}
.city-tile:hover {
  border-color: var(--color-primary-400);
  background: var(--color-primary-50);
  color: var(--color-primary-700);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.city-tile .arrow { color: var(--color-primary-500); transition: transform var(--t-fast) var(--ease-out); }
.city-tile:hover .arrow { transform: translateX(3px); }

/* ---------- FAQ ---------- */
.faq { display: grid; gap: var(--space-3); }
.faq details {
  background: var(--surface-card);
  border: 1px solid var(--color-ink-100);
  border-radius: var(--radius-md);
  padding: var(--space-4) var(--space-5);
  transition: border-color var(--t-base) var(--ease-out), box-shadow var(--t-base) var(--ease-out);
}
.faq details[open] { border-color: var(--color-primary-300); box-shadow: var(--shadow-sm); }
.faq summary {
  list-style: none;
  font-weight: var(--fw-semibold);
  color: var(--color-ink-900);
  font-size: var(--fs-lg);
  display: flex; justify-content: space-between; align-items: center; gap: var(--space-4);
  cursor: pointer;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  font-family: var(--font-display);
  font-size: 1.6rem;
  color: var(--color-primary-500);
  transition: transform var(--t-base) var(--ease-out);
  line-height: 1;
}
.faq details[open] summary::after { content: "−"; }
.faq summary + * { margin-top: var(--space-3); color: var(--color-ink-500); }

/* ---------- CTA section ---------- */
.cta-band {
  background: var(--gradient-dark);
  color: #fff;
  border-radius: var(--radius-xl);
  padding: clamp(2rem, 5vw, 4rem);
  position: relative; overflow: hidden;
  text-align: center;
}
.cta-band::before {
  content: ""; position: absolute; inset: -50%;
  background: radial-gradient(circle, rgba(245, 129, 31, 0.28) 0%, transparent 50%);
  pointer-events: none;
}
.cta-band .eyebrow { color: var(--color-primary-300); }
.cta-band .eyebrow::before { background: var(--gradient-cta); }
.cta-band > * { position: relative; }
.cta-band h2 { color: #fff; max-width: 22ch; margin-inline: auto; }
.cta-band p { color: var(--color-ink-200); max-width: 52ch; margin: var(--space-4) auto 0; }
.cta-band .btns { display: flex; gap: var(--space-3); justify-content: center; flex-wrap: wrap; margin-top: var(--space-6); }

/* ---------- Form ---------- */
.form {
  display: grid; gap: var(--space-4);
}
.form-row { display: grid; gap: var(--space-4); grid-template-columns: 1fr; }
@media (min-width: 640px) {
  .form-row { grid-template-columns: 1fr 1fr; }
}
.field label {
  display: block; font-size: var(--fs-sm); font-weight: var(--fw-semibold);
  color: var(--color-ink-700); margin-bottom: 6px;
}
.field input, .field textarea, .field select {
  width: 100%;
  padding: 12px 14px;
  background: var(--color-white);
  border: 1px solid var(--color-ink-200);
  border-radius: var(--radius-md);
  font-size: var(--fs-md);
  transition: border-color var(--t-fast), box-shadow var(--t-fast);
}
.field input:focus, .field textarea:focus, .field select:focus {
  outline: none;
  border-color: var(--color-primary-500);
  box-shadow: 0 0 0 4px rgba(46, 95, 230, 0.12);
}
.field textarea { min-height: 140px; resize: vertical; font-family: inherit; }
.checkbox { display: flex; gap: var(--space-3); align-items: flex-start; font-size: var(--fs-sm); color: var(--color-ink-500); }
.checkbox input { margin-top: 4px; }
.form .honeypot { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.form-status { font-size: var(--fs-sm); padding: var(--space-3) var(--space-4); border-radius: var(--radius-md); display: none; }
.form-status.is-visible { display: block; }
.form-status.success { background: rgba(16, 185, 129, 0.1); color: #047857; border: 1px solid rgba(16, 185, 129, 0.3); }
.form-status.error { background: rgba(239, 68, 68, 0.1); color: #b91c1c; border: 1px solid rgba(239, 68, 68, 0.3); }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--color-navy-900);
  color: var(--color-ink-200);
  padding: var(--space-8) 0 var(--space-5);
}
.site-footer__grid {
  display: grid; gap: var(--space-7);
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}
.site-footer h5 {
  font-family: var(--font-display);
  font-size: var(--fs-md); font-weight: var(--fw-semibold);
  color: #fff; margin-bottom: var(--space-3);
  text-transform: uppercase; letter-spacing: 0.08em;
}
.site-footer ul { list-style: none; display: grid; gap: 8px; }
.site-footer a { color: var(--color-ink-200); font-size: var(--fs-md); }
.site-footer a:hover { color: var(--color-accent-300); }
.site-footer__brand .site-logo { color: #fff; }
.site-footer__brand p { color: var(--color-ink-300); font-size: var(--fs-md); margin-top: var(--space-3); }
.site-footer__bottom {
  margin-top: var(--space-7);
  padding-top: var(--space-5);
  border-top: 1px solid rgba(255,255,255,0.1);
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: var(--space-3);
  font-size: var(--fs-sm); color: var(--color-ink-400);
}
.site-footer__legal { display: flex; gap: var(--space-4); flex-wrap: wrap; }

/* ---------- Breadcrumb ---------- */
.crumbs {
  font-size: var(--fs-sm);
  color: var(--color-ink-500);
  margin-bottom: var(--space-4);
  display: flex; gap: 6px; flex-wrap: wrap;
}
.crumbs a { color: var(--color-ink-500); }
.crumbs a:hover { color: var(--color-primary-600); }
.crumbs span[aria-current] { color: var(--color-ink-900); font-weight: var(--fw-semibold); }

/* ---------- Reveal animation ---------- */
.reveal {
  opacity: 0; transform: translateY(20px);
  transition: opacity 600ms var(--ease-out), transform 600ms var(--ease-out);
}
.reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .hero__orb { animation: none; }
  html { scroll-behavior: auto; }
}

/* ---------- Pricing-like quote chips ---------- */
.chips { display: flex; flex-wrap: wrap; gap: var(--space-2); }
.chip {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 12px;
  background: var(--color-primary-50);
  color: var(--color-primary-700);
  border-radius: var(--radius-pill);
  font-size: var(--fs-sm); font-weight: var(--fw-semibold);
}
.chip svg { color: var(--color-success); }

/* ---------- Lists with check ---------- */
.check-list { list-style: none; display: grid; gap: var(--space-3); }
.check-list li {
  position: relative;
  padding-left: calc(22px + var(--space-3));
  color: var(--color-ink-700);
  font-size: var(--fs-md);
  line-height: var(--lh-base);
}
.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 4px;
  width: 22px; height: 22px;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2310b981' stroke-width='3'><path d='M5 12l5 5 9-11'/></svg>");
  background-size: contain; background-repeat: no-repeat;
}

/* ---------- Two-column content ---------- */
.split {
  display: grid; gap: var(--space-7);
  grid-template-columns: 1fr;
}
@media (min-width: 880px) {
  .split { grid-template-columns: 1fr 1fr; align-items: center; }
  .split.split-wide { grid-template-columns: 1.2fr 0.8fr; }
}

/* ---------- 404 Not Found ---------- */
.not-found {
  background: var(--gradient-hero);
  min-height: calc(100vh - 80px);
  display: flex; align-items: center;
  padding-block: clamp(4rem, 8vw, 7rem);
}
.not-found__hero { text-align: center; margin-bottom: var(--space-8); }
.not-found__code {
  font-family: var(--font-display);
  font-size: clamp(7rem, 20vw, 14rem);
  font-weight: var(--fw-bold);
  line-height: 1;
  background: var(--gradient-cta);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  opacity: 0.18;
  user-select: none;
  margin-bottom: calc(var(--space-6) * -1.5);
}
.not-found__headline {
  font-size: var(--fs-4xl);
  line-height: var(--lh-tight);
  margin-top: var(--space-5);
}
.not-found__lead {
  color: var(--color-ink-500);
  max-width: 52ch;
  margin: var(--space-5) auto 0;
  font-size: var(--fs-lg);
}

.not-found__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
  max-width: 720px;
  margin: 0 auto;
}
@media (min-width: 560px) {
  .not-found__grid { grid-template-columns: 1fr 1fr; }
}

.not-found__card {
  display: flex; align-items: center; gap: var(--space-4);
  padding: var(--space-5);
  background: var(--surface-card);
  border: 1px solid var(--color-ink-100);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  text-decoration: none;
  color: var(--color-ink-900);
  transition: box-shadow var(--t-base) var(--ease-out),
              border-color var(--t-base) var(--ease-out),
              transform var(--t-base) var(--ease-out);
}
.not-found__card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary-300);
  transform: translateY(-2px);
}
.not-found__card--primary {
  border-color: var(--color-primary-300);
  background: var(--color-primary-50);
}
.not-found__card--primary:hover { border-color: var(--color-primary-500); }

.not-found__card-icon {
  flex-shrink: 0;
  width: 44px; height: 44px;
  display: flex; align-items: center; justify-content: center;
  background: var(--color-ink-50);
  border-radius: var(--radius-md);
  color: var(--color-primary-500);
}
.not-found__card--primary .not-found__card-icon {
  background: var(--color-primary-100);
}
.not-found__card > div strong {
  display: block;
  font-weight: var(--fw-semibold);
  font-size: var(--fs-md);
  margin-bottom: 2px;
}
.not-found__card > div p {
  font-size: var(--fs-sm);
  color: var(--color-ink-500);
  margin: 0;
  line-height: var(--lh-snug);
}
.not-found__card-arrow {
  margin-left: auto;
  flex-shrink: 0;
  color: var(--color-primary-500);
  font-size: var(--fs-xl);
  transition: transform var(--t-fast) var(--ease-out);
}
.not-found__card:hover .not-found__card-arrow { transform: translateX(4px); }

.not-found__popular {
  margin-top: var(--space-8);
  text-align: center;
}
.not-found__popular-label {
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-ink-400);
  margin-bottom: var(--space-4);
}
.not-found__links {
  display: flex; flex-wrap: wrap; justify-content: center;
  gap: var(--space-2) var(--space-4);
}
.not-found__links a {
  font-size: var(--fs-sm);
  color: var(--color-ink-500);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color var(--t-fast);
}
.not-found__links a:hover { color: var(--color-primary-500); }