/* ── Variables ── */
:root {
  --color-bg: #ffffff;
  --color-bg-elevated: #f5f5f5;
  --color-bg-card: #ffffff;
  --color-border: #e0e0e0;
  --color-text: #1a1a1a;
  --color-text-muted: #6b6b6b;
  --color-accent: #f97316;
  --color-accent-hover: #ea580c;
  --color-accent-light: #fff7ed;
  --color-accent-glow: rgba(249, 115, 22, 0.2);
  --font-display: 'Outfit', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --header-height: 72px;
  --transition: 0.25s ease;
}

/* ── Reset & base ── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font: inherit; cursor: pointer; border: none; background: none; }

.container {
  width: min(1120px, 100% - 2.5rem);
  margin-inline: auto;
}

/* ── Header ── */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-height);
  transition: background var(--transition), border-color var(--transition), backdrop-filter var(--transition);
}

.header--scrolled {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border);
  box-shadow: 0 1px 12px rgba(0, 0, 0, 0.04);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  transition: transform var(--transition);
}

.logo:hover {
  transform: translateY(-1px);
}

.logo__mark {
  position: relative;
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  flex-shrink: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.15rem;
  font-style: normal;
  letter-spacing: -0.02em;
  line-height: 1;
  color: #ffffff;
  background: linear-gradient(145deg, #ff9a4a 0%, #f97316 48%, #c2410c 100%);
  border-radius: 12px;
  box-shadow:
    0 6px 18px rgba(249, 115, 22, 0.4),
    inset 0 1px 0 rgba(255, 255, 255, 0.35);
  overflow: hidden;
  transition:
    color 0.3s ease,
    background 0.3s ease,
    transform 0.35s ease,
    box-shadow 0.35s ease;
}

.logo__mark::before {
  content: "";
  position: absolute;
  top: -20%;
  left: -30%;
  width: 70%;
  height: 140%;
  background: linear-gradient(120deg, transparent 30%, rgba(255, 255, 255, 0.22) 50%, transparent 70%);
  transform: skewX(-18deg);
  pointer-events: none;
}

.logo:hover .logo__mark {
  color: #f97316;
  background: #ffffff;
  transform: scale(1.08) rotate(-3deg);
  box-shadow:
    0 10px 28px rgba(249, 115, 22, 0.3),
    0 0 0 2px rgba(249, 115, 22, 0.45),
    inset 0 1px 0 rgba(249, 115, 22, 0.08);
}

.logo__text {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.2rem;
  letter-spacing: -0.03em;
  line-height: 1.1;
}

.logo__suffix {
  color: var(--color-accent);
  font-weight: 700;
}

.logo--footer .logo__mark {
  width: 36px;
  height: 36px;
  font-size: 0.9rem;
}

.logo--footer .logo__text {
  font-size: 1.05rem;
}

.nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav__link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-muted);
  transition: color var(--transition);
}

.nav__link:hover { color: var(--color-text); }

.nav__link--cta {
  padding: 0.55rem 1.25rem;
  background: var(--color-accent);
  color: #fff !important;
  border-radius: var(--radius-sm);
  transition: background var(--transition), transform var(--transition);
}

.nav__link--cta:hover {
  background: var(--color-accent-hover);
  transform: translateY(-1px);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 1.75rem;
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: var(--radius-sm);
  transition: background var(--transition), color var(--transition), border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}

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

.btn--primary:hover {
  background: var(--color-accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px var(--color-accent-glow);
}

.btn--ghost {
  border: 1px solid var(--color-border);
  color: var(--color-text);
}

.btn--ghost:hover {
  border-color: var(--color-accent);
  background: var(--color-accent-light);
  color: var(--color-accent);
}

.btn--full { width: 100%; }

/* ── Hero (full-page banner) ── */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  overflow: hidden;
  content-visibility: visible;
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero__image {
  position: absolute;
  inset: 0;
  background: url("images/web/engine.jpg") center / cover no-repeat;
  opacity: 0.2;
  transition: opacity 0.45s ease;
}

.hero:hover .hero__image {
  opacity: 0.75;
}

.hero__gradient {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 70% 40%, rgba(249, 115, 22, 0.12) 0%, transparent 60%),
    radial-gradient(ellipse 50% 50% at 20% 80%, rgba(249, 115, 22, 0.06) 0%, transparent 50%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.85) 0%, rgba(245, 245, 245, 0.75) 50%, rgba(255, 255, 255, 0.9) 100%);
  transition: opacity 0.45s ease;
}

.hero:hover .hero__gradient {
  opacity: 0.45;
}

.hero__grid {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  mask-image: radial-gradient(ellipse 70% 70% at 50% 50%, black 20%, transparent 80%);
}

.hero__content {
  position: relative;
  z-index: 1;
  padding-block: calc(var(--header-height) + 3rem) 4rem;
}

.hero__eyebrow {
  display: inline-block;
  padding: 0.35rem 0.85rem;
  margin-bottom: 1.25rem;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-accent);
  background: var(--color-accent-light);
  border: 1px solid rgba(249, 115, 22, 0.3);
  border-radius: 100px;
}

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 4.25rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.03em;
  margin-bottom: 1.25rem;
  transition: color 0.45s ease, text-shadow 0.45s ease;
}

.hero:hover .hero__title {
  color: #ffffff;
  text-shadow:
    0 0 8px rgba(0, 0, 0, 0.85),
    0 0 16px rgba(0, 0, 0, 0.7),
    0 0 28px rgba(0, 0, 0, 0.5);
}

.hero__accent {
  background: linear-gradient(135deg, var(--color-accent) 0%, #fb923c 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero:hover .hero__accent {
  text-shadow: none;
  filter: drop-shadow(0 0 6px rgba(0, 0, 0, 0.85)) drop-shadow(0 0 14px rgba(0, 0, 0, 0.55));
}

.hero__subtitle {
  max-width: 540px;
  font-size: 1.1rem;
  color: var(--color-text-muted);
  margin-bottom: 2rem;
  transition: color 0.45s ease, text-shadow 0.45s ease;
}

.hero:hover .hero__subtitle {
  color: #ffffff;
  text-shadow:
    0 0 8px rgba(0, 0, 0, 0.85),
    0 0 16px rgba(0, 0, 0, 0.7),
    0 0 28px rgba(0, 0, 0, 0.5);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 3.5rem;
}

.hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 2.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--color-border);
}

.stat__value {
  display: block;
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-accent);
}

.stat__label {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.hero__scroll {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--color-text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  animation: bounce 2s infinite;
}

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(6px); }
}

/* ── Sections ── */
.section {
  padding-block: 6rem;
  content-visibility: auto;
  contain-intrinsic-size: 1px 800px;
}

.section__label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 0.75rem;
}

.section__title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
}

.section__header {
  text-align: center;
  max-width: 560px;
  margin-inline: auto;
  margin-bottom: 3.5rem;
}

/* ── About ── */
.about {
  background: var(--color-bg-elevated);
  border-block: 1px solid var(--color-border);
}

.about__grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 4rem;
  align-items: center;
}

.about__visual {
  position: relative;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  grid-template-rows: 1fr 1fr;
  gap: 0.85rem;
  min-height: 480px;
}

.about__photo {
  margin: 0;
  overflow: hidden;
  border-radius: var(--radius-lg);
  background: var(--color-bg-card);
}

.about__photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.5s ease;
}

.about__photo:hover img {
  transform: scale(1.04);
}

.about__photo--main {
  grid-row: 1 / 3;
}

.about__photo--top,
.about__photo--bottom {
  min-height: 0;
}

.about__content .section__title {
  margin-bottom: 1.25rem;
}

.about__lead {
  font-size: 1.05rem;
  margin-bottom: 1rem;
}

.about__content p {
  color: var(--color-text-muted);
  margin-bottom: 1.5rem;
}

.about__list {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.about__list li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.95rem;
}

.about__list svg {
  flex-shrink: 0;
  margin-top: 2px;
  color: var(--color-accent);
}

/* ── Services ── */
.services__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}

.service-card {
  padding: 1.75rem;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}

.service-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(249, 115, 22, 0.1);
}

.service-card__icon {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: 1.25rem;
}

.service-card h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  margin-bottom: 0.65rem;
}

.service-card p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.55;
}

/* ── Blog teaser (homepage) ── */
.blog-teaser {
  background: var(--color-bg-elevated);
  border-top: 1px solid var(--color-border);
}

.blog-grid--teaser {
  margin-bottom: 0;
}

.blog-grid--teaser .blog-card__body h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.65rem;
  line-height: 1.25;
}

.blog-teaser__all {
  text-align: center;
  margin-top: 2rem;
}

.blog-teaser__all a {
  font-weight: 600;
  color: var(--color-accent);
  transition: color var(--transition);
}

.blog-teaser__all a:hover {
  color: var(--color-accent-hover);
}

/* ── Compatibility checker ── */
.compatibility {
  background: var(--color-bg-elevated);
  border-top: 1px solid var(--color-border);
}

.compatibility__intro {
  max-width: 40rem;
  margin: 0.75rem auto 0;
  color: var(--color-text-muted);
  font-size: 1.02rem;
}

.compatibility__note {
  margin-top: 1.5rem;
  font-size: 0.88rem;
  color: var(--color-text-muted);
  max-width: 48rem;
  margin-inline: auto;
  text-align: center;
  line-height: 1.55;
}

.compatibility__note a {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.compat-checker {
  margin-top: 2.25rem;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem 1.5rem 1.25rem;
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.04);
}

.compat-checker__filters {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.compat-checker__search {
  margin-bottom: 0.85rem;
}

.compat-checker__dropdowns {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
}

.compat-checker__engine-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.45rem;
}

.compat-checker__engine-head label {
  margin-bottom: 0;
}

.compat-unit-switch {
  display: inline-flex;
  padding: 2px;
  border-radius: 999px;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
}

.compat-unit-switch__btn {
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--color-text-muted);
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  cursor: pointer;
  line-height: 1;
  transition: background 0.15s ease, color 0.15s ease;
}

.compat-unit-switch__btn.is-active {
  background: var(--color-accent);
  color: #fff;
}

.compat-unit-switch__btn:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.compat-checker select:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.compat-checker__actions {
  display: flex;
  justify-content: flex-end;
  margin-top: 0.25rem;
  margin-bottom: 0.5rem;
}

.compat-checker__status {
  margin-top: 0.75rem;
  padding: 1rem 1.15rem;
  border-radius: var(--radius-md);
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
}

.compat-checker__hint {
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

.compat-verdict {
  display: flex;
  align-items: flex-start;
  gap: 0.9rem;
}

.compat-verdict__badge {
  flex-shrink: 0;
  min-width: 3.25rem;
  height: 2rem;
  padding: 0 0.75rem;
  display: inline-grid;
  place-items: center;
  border-radius: var(--radius-sm);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.compat-verdict__badge--yes {
  background: #ecfdf5;
  color: #047857;
  border: 1px solid #a7f3d0;
}

.compat-verdict__badge--no {
  background: #fef2f2;
  color: #b91c1c;
  border: 1px solid #fecaca;
}

.compat-verdict__badge--partial {
  background: var(--color-accent-light);
  color: var(--color-accent-hover);
  border: 1px solid rgba(249, 115, 22, 0.35);
}

.compat-verdict__body strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.05rem;
  margin-bottom: 0.2rem;
}

.compat-verdict__body p {
  color: var(--color-text-muted);
  font-size: 0.92rem;
}

.compat-gains {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--color-border);
}

.compat-gains__head {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  margin-bottom: 0.85rem;
}

.compat-gains__head strong {
  font-family: var(--font-display);
  font-size: 1rem;
}

.compat-gains__head span,
.compat-gains__note {
  color: var(--color-text-muted);
  font-size: 0.85rem;
}

.compat-gains__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

.compat-gains__card {
  padding: 0.85rem 1rem;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.compat-gains__card--plus {
  border-color: rgba(249, 115, 22, 0.4);
  background: var(--color-accent-light);
}

.compat-gains__card h4 {
  margin: 0 0 0.65rem;
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 700;
}

.compat-gains__card dl {
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.compat-gains__card dl > div {
  display: grid;
  grid-template-columns: 4.5rem 1fr;
  gap: 0.5rem;
  align-items: baseline;
}

.compat-gains__card dt {
  margin: 0;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-text-muted);
}

.compat-gains__card dd {
  margin: 0;
  font-size: 0.92rem;
}

.compat-gains__card dd small {
  color: var(--color-text-muted);
  margin-left: 0.15rem;
}

.compat-gains__delta {
  color: #047857;
  font-weight: 600;
  font-size: 0.85rem;
}

@media (max-width: 560px) {
  .compat-gains__grid {
    grid-template-columns: 1fr;
  }
}

.compat-results {
  margin-top: 1rem;
  max-height: 22rem;
  overflow: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.compat-results__table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.compat-results__table th,
.compat-results__table td {
  padding: 0.7rem 0.9rem;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
  vertical-align: top;
}

.compat-results__table th {
  position: sticky;
  top: 0;
  background: var(--color-bg-elevated);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-text-muted);
  z-index: 1;
}

.compat-results__table tr:last-child td {
  border-bottom: none;
}

.compat-results__table tbody tr:hover td {
  background: var(--color-accent-light);
}

.compat-pill {
  display: inline-block;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
}

.compat-pill--beta {
  background: var(--color-accent-light);
  border-color: rgba(249, 115, 22, 0.35);
  color: var(--color-accent-hover);
}

.compat-pill--ok {
  background: #ecfdf5;
  border-color: #a7f3d0;
  color: #047857;
}

@media (max-width: 900px) {
  .compat-checker__dropdowns {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 560px) {
  .compat-checker {
    padding: 1.15rem;
  }

  .compat-checker__dropdowns {
    grid-template-columns: 1fr;
  }

  .compat-results__table th:nth-child(4),
  .compat-results__table td:nth-child(4) {
    display: none;
  }
}

/* ── FAQ ── */
.faq {
  background: var(--color-bg);
  border-top: 1px solid var(--color-border);
}

.faq__list {
  max-width: 760px;
  margin-inline: auto;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.faq__item {
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--transition);
}

.faq__item[open] {
  border-color: rgba(249, 115, 22, 0.35);
}

.faq__question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.15rem 1.35rem;
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  cursor: pointer;
  list-style: none;
  transition: color var(--transition);
}

.faq__question::-webkit-details-marker {
  display: none;
}

.faq__question::after {
  content: "+";
  flex-shrink: 0;
  width: 1.5rem;
  height: 1.5rem;
  display: grid;
  place-items: center;
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--color-accent);
  transition: transform var(--transition);
}

.faq__item[open] .faq__question::after {
  content: "−";
}

.faq__question:hover {
  color: var(--color-accent);
}

.faq__answer {
  padding: 0 1.35rem 1.25rem;
}

.faq__answer p {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  line-height: 1.65;
}

/* ── Contact ── */
.contact {
  background: var(--color-bg-elevated);
  border-top: 1px solid var(--color-border);
}

.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 4rem;
  align-items: start;
}

.contact__info .section__title {
  margin-bottom: 1rem;
}

.contact__info > p {
  color: var(--color-text-muted);
  margin-bottom: 2rem;
}

.contact__details {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.contact__detail {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.contact__detail svg {
  flex-shrink: 0;
  color: var(--color-accent);
  margin-top: 2px;
}

.contact__detail strong {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  margin-bottom: 0.15rem;
}

.contact__detail a {
  transition: color var(--transition);
}

.contact__detail a:hover { color: var(--color-accent); }

/* ── Form ── */
.contact-form {
  padding: 2rem;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.form-group {
  margin-bottom: 1.15rem;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 0.4rem;
  color: var(--color-text-muted);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  font-family: inherit;
  font-size: 0.95rem;
  color: var(--color-text);
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-glow);
}

.form-group input:invalid:not(:placeholder-shown),
.form-group select:invalid:not(:placeholder-shown) {
  border-color: #e5484d;
}

.form-group textarea {
  resize: vertical;
  min-height: 100px;
}

.form-group--checkbox {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
}

.form-group--checkbox input {
  width: auto;
  margin-top: 4px;
  accent-color: var(--color-accent);
}

.form-group--checkbox label {
  margin-bottom: 0;
  font-size: 0.85rem;
  line-height: 1.5;
  color: var(--color-text-muted);
}

.link-btn {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.link-btn:hover { color: var(--color-accent-hover); }

.form-success {
  margin-top: 1rem;
  padding: 0.85rem 1rem;
  font-size: 0.9rem;
  text-align: center;
  color: #15803d;
  background: #f0fdf4;
  border: 1px solid #bbf7d0;
  border-radius: var(--radius-sm);
}

.form-error {
  margin-top: 1rem;
  padding: 0.85rem 1rem;
  font-size: 0.9rem;
  text-align: center;
  color: #b91c1c;
  background: #fef2f2;
  border: 1px solid #fecaca;
  border-radius: var(--radius-sm);
}

/* ── Footer ── */
.footer {
  padding-block: 2rem 0;
  background: var(--color-bg-elevated);
  border-top: 1px solid var(--color-border);
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.4fr 0.9fr 0.9fr 1fr;
  gap: 1.5rem 2rem;
  padding-bottom: 1.5rem;
  align-items: start;
}

.footer__brand p {
  margin-top: 0.6rem;
  font-size: 0.8rem;
  line-height: 1.45;
  color: var(--color-text-muted);
  max-width: 260px;
}

.footer__social {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  margin-top: 0.85rem;
}

.footer__social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  transition: color var(--transition), border-color var(--transition), background var(--transition);
}

.footer__social-link svg {
  width: 1rem;
  height: 1rem;
}

.footer__social-link:hover {
  color: var(--color-accent);
  border-color: rgba(249, 115, 22, 0.45);
  background: var(--color-accent-light);
}

.footer__links h4 {
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0.55rem;
}

.footer__links li {
  margin-bottom: 0.3rem;
  font-size: 0.8rem;
  line-height: 1.35;
  color: var(--color-text-muted);
}

.footer__links a,
.footer__links .link-btn {
  color: var(--color-text-muted);
  transition: color var(--transition);
}

.footer__links a:hover,
.footer__links .link-btn:hover {
  color: var(--color-text);
}

.footer__bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.35rem 1rem;
  padding-block: 0.85rem;
  border-top: 1px solid var(--color-border);
}

.footer__bottom p {
  font-size: 0.72rem;
  color: var(--color-text-muted);
}

.footer__legal {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem 0.85rem;
}

.footer__terms {
  font-size: 0.72rem;
  color: var(--color-text-muted);
}

.footer__terms:hover {
  color: var(--color-accent);
}

/* ── Blog page ── */
.blog-page {
  padding-top: calc(var(--header-height) + 3rem);
}

.blog-page__intro {
  margin-top: 1rem;
  color: var(--color-text-muted);
  max-width: 720px;
  margin-inline: auto;
  line-height: 1.65;
}

.blog-page__header {
  margin-bottom: 2.5rem;
}

.blog-authority {
  margin-bottom: 2.5rem;
}

.blog-authority__grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 1.25rem;
  align-items: stretch;
}

.blog-authority__card,
.blog-authority__aside {
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
}

.blog-authority__card h2,
.blog-authority__aside h2,
.blog-editorial h2,
.blog-faq h2,
.blog-bottom-cta h2,
.blog-section-title,
.blog-topics__title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.85rem;
}

.blog-authority__card p,
.blog-authority__aside p,
.blog-editorial p {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  line-height: 1.65;
  margin-bottom: 1rem;
}

.blog-authority__card ul {
  margin: 0;
  padding-left: 1.15rem;
  color: var(--color-text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

.blog-authority__card li {
  margin-bottom: 0.4rem;
  list-style: disc;
}

.blog-keywords {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.25rem !important;
}

.blog-keywords a {
  display: inline-block;
  padding: 0.4rem 0.75rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-accent);
  background: var(--color-accent-light);
  border: 1px solid rgba(249, 115, 22, 0.25);
  border-radius: 999px;
  transition: background var(--transition), color var(--transition);
}

.blog-keywords a:hover {
  background: var(--color-accent);
  color: #fff;
}

.blog-authority__cta a {
  color: var(--color-accent);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.blog-topics {
  margin-bottom: 2rem;
  text-align: center;
}

.blog-topics__list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.65rem 1rem;
}

.blog-topics__list a {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text-muted);
  border-bottom: 1px solid transparent;
  transition: color var(--transition), border-color var(--transition);
}

.blog-topics__list a:hover {
  color: var(--color-accent);
  border-color: var(--color-accent);
}

.blog-editorial {
  max-width: 800px;
  margin: 0 auto 2.75rem;
  padding: 1.75rem;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.blog-editorial a {
  color: var(--color-accent);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.blog-section-title {
  text-align: center;
  margin-bottom: 1.75rem;
  font-size: 1.5rem;
}

.blog-faq {
  max-width: 760px;
  margin: 3.5rem auto 0;
}

.blog-faq .faq__list {
  margin-top: 1.25rem;
}

.blog-faq .faq__answer a {
  color: var(--color-accent);
  font-weight: 600;
}

.blog-bottom-cta {
  margin-top: 3rem;
  padding: 2rem;
  text-align: center;
  background: var(--color-accent-light);
  border: 1px solid rgba(249, 115, 22, 0.25);
  border-radius: var(--radius-lg);
}

.blog-bottom-cta p {
  color: var(--color-text-muted);
  margin-bottom: 1.25rem;
}

@media (max-width: 960px) {
  .blog-authority__grid {
    grid-template-columns: 1fr;
  }
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-bottom: 4rem;
}

.blog-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}

.blog-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(249, 115, 22, 0.1);
}

.blog-card__link {
  display: block;
  color: inherit;
  height: 100%;
}

.blog-card__image {
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--color-bg-elevated);
}

.blog-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.blog-card:hover .blog-card__image img {
  transform: scale(1.04);
}

.blog-card__body {
  padding: 1.35rem 1.5rem 1.5rem;
}

.blog-card__date {
  display: block;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--color-accent);
  margin-bottom: 0.5rem;
}

.blog-card__body h2 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.65rem;
  line-height: 1.25;
}

.blog-card__body p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-bottom: 1rem;
  line-height: 1.55;
}

.blog-card__more {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-accent);
}

.blog-posts {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
  max-width: 720px;
  margin-inline: auto;
}

.blog-post {
  padding: 2rem;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  scroll-margin-top: calc(var(--header-height) + 1.5rem);
}

.blog-post time {
  display: block;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--color-accent);
  margin-bottom: 0.65rem;
}

.blog-post h2 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}

.blog-post p {
  color: var(--color-text-muted);
  margin-bottom: 1rem;
  line-height: 1.65;
}

.blog-post p:last-child {
  margin-bottom: 0;
}

/* ── Blog article pages ── */
.article-page {
  padding-top: calc(var(--header-height) + 2.5rem);
  padding-bottom: 4rem;
}

.article {
  max-width: 760px;
}

.article__breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: 1.5rem;
}

.article__breadcrumb a {
  color: var(--color-accent);
  transition: color var(--transition);
}

.article__breadcrumb a:hover {
  color: var(--color-accent-hover);
}

.article__header time {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-accent);
  margin-bottom: 0.75rem;
}

.article__header h1 {
  font-family: var(--font-display);
  font-size: clamp(1.85rem, 4vw, 2.75rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 1rem;
}

.article__lead {
  font-size: 1.1rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: 2rem;
}

.article__hero {
  margin: 0 0 2.5rem;
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.article__hero img {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  display: block;
}

.article__body h2 {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  margin: 2rem 0 0.85rem;
  letter-spacing: -0.02em;
}

.article__body p {
  color: var(--color-text-muted);
  margin-bottom: 1.1rem;
  line-height: 1.7;
}

.article__body a {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.article__notice {
  margin: 0 0 1.5rem;
  padding: 1rem 1.15rem;
  background: #fff7ed;
  border: 1px solid rgba(249, 115, 22, 0.35);
  border-radius: var(--radius-md);
  color: var(--color-text);
  font-size: 0.95rem;
  line-height: 1.55;
}

.article__body ul,
.article__body ol {
  margin: 0 0 1.25rem 1.25rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}

.article__body li {
  margin-bottom: 0.45rem;
  list-style: disc;
}

.article__body ol li {
  list-style: decimal;
}

.article__cta {
  margin-top: 3rem;
  padding: 2rem;
  background: var(--color-accent-light);
  border: 1px solid rgba(249, 115, 22, 0.25);
  border-radius: var(--radius-lg);
  text-align: center;
}

.article__cta h2 {
  font-family: var(--font-display);
  font-size: 1.35rem;
  margin-bottom: 0.5rem;
}

.article__cta p {
  color: var(--color-text-muted);
  margin-bottom: 1.25rem;
  font-size: 0.95rem;
}

.article__related {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--color-border);
}

.article__related h2 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  margin-bottom: 1rem;
}

.article__related ul {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.article__related a {
  color: var(--color-accent);
  font-weight: 500;
  transition: color var(--transition);
}

.article__related a:hover {
  color: var(--color-accent-hover);
}

/* ── Modal ── */
.modal {
  width: min(640px, 92vw);
  max-height: 85vh;
  padding: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-bg-card);
  color: var(--color-text);
  overflow: hidden;
}

.modal::backdrop {
  background: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(4px);
}

.modal__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--color-border);
}

.modal__header h2 {
  font-family: var(--font-display);
  font-size: 1.25rem;
}

.modal__close {
  font-size: 1.5rem;
  line-height: 1;
  color: var(--color-text-muted);
  transition: color var(--transition);
}

.modal__close:hover { color: var(--color-text); }

.modal__body {
  padding: 1.5rem;
  overflow-y: auto;
  max-height: calc(85vh - 60px);
}

.modal__body h3 {
  font-family: var(--font-display);
  font-size: 1rem;
  margin-block: 1.25rem 0.5rem;
}

.modal__body h3:first-of-type { margin-top: 0.75rem; }

.modal__body p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ── Responsive ── */
@media (max-width: 960px) {
  .services__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .about__grid,
  .contact__grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .about__visual {
    min-height: 420px;
    order: -1;
  }

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

  .footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem 1.5rem;
  }

  .footer__brand {
    grid-column: 1 / -1;
  }
}

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

  .nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--color-border);
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--transition), opacity var(--transition);
  }

  .nav--open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav__link {
    padding: 0.85rem 0;
    width: 100%;
    text-align: center;
  }

  .nav__link--cta {
    margin-top: 0.5rem;
  }

  .hero__stats {
    gap: 1.5rem;
  }

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

  .form-row {
    grid-template-columns: 1fr;
  }

  .footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: 1.1rem 1.25rem;
  }

  .footer__brand {
    grid-column: 1 / -1;
  }

  .about__visual {
    min-height: 360px;
    gap: 0.65rem;
  }
}