/* ——— Header: clean corporate bar + underline nav ——— */

.header {
  position: sticky;
  top: 0;
  z-index: 160;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
  gap: 2rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  font-weight: var(--font-weight-semibold);
  font-size: var(--text-base);
  color: var(--color-primary);
  text-decoration: none;
  transition: opacity var(--transition);
}

.logo:hover {
  color: var(--color-primary);
  opacity: 0.9;
}

.logo__mark {
  width: 38px;
  height: 38px;
  flex-shrink: 0;
}

.logo__wordmark {
  letter-spacing: 0.08em;
  line-height: 1.1;
  text-transform: uppercase;
  font-size: var(--text-base);
  font-weight: var(--font-weight-bold);
}

@media (max-width: 899px) {
  .logo__mark {
    width: 36px;
    height: 36px;
  }

  .logo__wordmark {
    font-size: 1.25rem;
  }
}

@media (min-width: 900px) {
  .logo__mark {
    width: 40px;
    height: 40px;
  }

  .logo__wordmark {
    font-size: var(--text-lg);
  }
}

.nav {
  display: none;
  align-items: center;
  gap: 2.25rem;
}

.nav a,
.nav .nav__item {
  position: relative;
  padding: 0.35rem 0;
  font-size: var(--text-sm);
  font-weight: var(--font-weight-medium);
  letter-spacing: 0.02em;
  color: var(--color-text);
  text-decoration: none;
  transition: color var(--transition);
}

.nav a::after,
.nav .nav__item::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: var(--nav-underline-h);
  background: var(--color-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}

.nav a:hover,
.nav .nav__item:hover {
  color: var(--color-primary);
}

.nav a:hover::after,
.nav .nav__item:hover::after,
.nav .nav__item.is-active::after {
  transform: scaleX(1);
}

.nav .nav__item.is-active {
  color: var(--color-primary);
  font-weight: var(--font-weight-semibold);
}

.header__cta {
  display: none;
  flex-shrink: 0;
  font-size: var(--text-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-primary);
  text-decoration: none;
  letter-spacing: 0.01em;
  white-space: nowrap;
}

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

@media (min-width: 900px) {
  .nav {
    display: flex;
  }

  .header__cta {
    display: inline-flex;
  }
}

.burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 0;
  border: none;
  background: transparent;
  cursor: pointer;
}

@media (max-width: 899px) {
  .burger {
    display: flex;
  }
}

.burger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-primary);
  transition: var(--transition);
}

.nav-mobile {
  display: none;
}

.nav-mobile a {
  font-weight: var(--font-weight-medium);
  color: var(--color-text);
  text-decoration: none;
}

@media (max-width: 899px) {
  .nav-mobile {
    position: fixed;
    top: var(--header-h);
    right: 0;
    left: auto;
    width: min(88vw, 22rem);
    z-index: 151;
    max-height: calc(100dvh - var(--header-h));
    overflow-y: auto;
    margin: 0;
    padding: 0;
    background: var(--color-surface);
    border-left: 1px solid var(--color-border);
    box-shadow: var(--shadow-lg);
    -webkit-overflow-scrolling: touch;
  }

  .nav-mobile.is-open {
    display: block;
  }

  .nav-mobile__inner {
    display: flex;
    flex-direction: column;
    gap: 0;
    width: 100%;
    padding: 0.5rem 1rem 1.25rem;
  }

  .nav-mobile a {
    display: block;
    padding: 0.95rem 0.5rem;
    font-size: var(--text-base);
    line-height: 1.35;
    border-bottom: 1px solid var(--color-border);
    transition: color var(--transition);
  }

  .nav-mobile a:hover,
  .nav-mobile a:focus-visible {
    color: var(--color-accent);
  }

  .nav-mobile__cta {
    margin-top: 0.75rem;
    padding-top: 1rem;
    border-bottom: none;
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
  }
}

body.nav-open {
  overflow: hidden;
}

.nav-backdrop {
  display: none;
}

@media (max-width: 899px) {
  .nav-backdrop.is-visible {
    display: block;
    position: fixed;
    inset: 0;
    z-index: 150;
    background: rgba(0, 32, 91, 0.4);
    cursor: pointer;
  }
}

/* ——— Buttons ——— */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.8rem 1.5rem;
  font-family: inherit;
  font-size: var(--text-sm);
  font-weight: var(--font-weight-semibold);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background var(--transition), color var(--transition),
    border-color var(--transition), box-shadow var(--transition);
}

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

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

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

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

.btn--ghost {
  background: var(--color-surface);
  color: var(--color-primary);
  border-color: var(--color-border);
}

.btn--ghost:hover {
  border-color: var(--color-primary);
  background: var(--color-bg-alt);
}

.btn--on-band {
  background: var(--color-on-band);
  color: var(--color-primary);
}

.btn--on-band:hover {
  background: rgba(255, 255, 255, 0.92);
  color: var(--color-primary-deep);
}

.btn--on-band-outline {
  color: var(--color-on-band);
  border-color: rgba(255, 255, 255, 0.55);
  background: transparent;
}

.btn--on-band-outline:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: var(--color-on-band);
  color: var(--color-on-band);
}

/* ——— Hero ——— */

.hero {
  position: relative;
  padding: clamp(4rem, 9vw, 6.5rem) 0 clamp(3.5rem, 7vw, 5rem);
  background: var(--color-bg);
  color: var(--color-text);
  overflow: hidden;
}

.hero--home {
  border-bottom: none;
}

.hero--home::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    var(--color-bg-alt) 0%,
    var(--color-bg) 48%
  );
  pointer-events: none;
}

.hero--pattern::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background: var(--pattern-dots) 0 0 / var(--pattern-dots-size);
  opacity: 0.9;
  pointer-events: none;
}

.hero__accent {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 2;
  height: 5px;
  background: linear-gradient(
    90deg,
    var(--color-primary) 0%,
    var(--color-accent) 50%,
    var(--color-primary) 100%
  );
  pointer-events: none;
}

.hero .container {
  position: relative;
  z-index: 1;
}

.hero__eyebrow {
  display: block;
  margin-bottom: 1rem;
  font-size: var(--text-xs);
  font-weight: var(--font-weight-semibold);
  letter-spacing: var(--tracking-eyebrow);
  text-transform: uppercase;
  color: var(--color-accent);
}

.hero__grid {
  display: grid;
  gap: 3rem;
  align-items: center;
}

@media (min-width: 900px) {
  .hero__grid {
    grid-template-columns: 1.08fr 0.92fr;
    gap: 4.5rem;
  }
}

.hero__title {
  margin: 0 0 1.35rem;
  font-size: var(--text-hero);
  font-weight: var(--font-weight-bold);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
  color: var(--color-primary);
}

.hero__subtitle {
  margin: 0 0 2.25rem;
  font-size: clamp(1.05rem, 1.8vw, 1.2rem);
  font-weight: var(--font-weight-regular);
  line-height: 1.6;
  max-width: 40rem;
  color: var(--color-text-muted);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
}

.hero__visual {
  display: flex;
  align-items: center;
  justify-content: center;
}

@media (max-width: 899px) {
  .hero--home .hero__visual {
    display: none;
  }
}

.hero__visual img {
  width: 100%;
  max-width: 540px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface);
  box-shadow: var(--shadow-lg);
}

/* Pillar tabs (legacy) */
.pillar-tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.pillar-tab {
  flex: 1;
  padding: 0.75rem 1rem;
  font-family: inherit;
  font-size: var(--text-sm);
  font-weight: var(--font-weight-semibold);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  color: var(--color-text-muted);
  cursor: pointer;
  transition: var(--transition);
}

.pillar-tab.is-active {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: var(--color-bg-alt);
}

.pillar-panel {
  display: none;
}

.pillar-panel.is-active {
  display: block;
}

@media (min-width: 768px) {
  .pillar-tabs {
    display: none;
  }

  .pillar-panel {
    display: block !important;
  }
}

/* Semantic / methods legacy blocks */
.semantic-steps {
  display: grid;
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}

@media (min-width: 768px) {
  .semantic-steps {
    grid-template-columns: repeat(3, 1fr);
  }
}

.semantic-step {
  padding: 1.75rem;
  background: var(--color-surface);
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
}

.semantic-step__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  margin-bottom: 1rem;
  font-weight: var(--font-weight-semibold);
  font-size: var(--text-sm);
  color: var(--color-primary);
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
}

.semantic-results {
  display: grid;
  gap: 1rem;
}

@media (min-width: 640px) {
  .semantic-results {
    grid-template-columns: 1fr 1fr;
  }
}

.semantic-result {
  padding: 1.25rem 1.5rem;
  background: var(--color-surface);
  font-size: var(--text-sm);
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-accent);
}

.method-chip {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: 1.75rem;
  background: var(--color-surface);
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.method-chip:hover {
  border-color: var(--color-border-strong);
  box-shadow: var(--shadow-md);
}

.method-chip__title {
  margin: 0 0 0.5rem;
  font-size: var(--text-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
}

.method-chip__text {
  margin: 0;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.advantage {
  display: flex;
  gap: 1.25rem;
  padding: 1.5rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
}

.advantage__icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg-alt);
  color: var(--color-accent);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-weight: var(--font-weight-semibold);
}

.advantage__title {
  margin: 0 0 0.35rem;
  font-weight: var(--font-weight-semibold);
  color: var(--color-primary);
}

.advantage__text {
  margin: 0;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.about-block {
  display: grid;
  gap: 2.5rem;
  align-items: start;
}

@media (min-width: 768px) {
  .about-block {
    grid-template-columns: 2fr 1fr;
  }
}

.about-block__text p {
  margin: 0 0 1rem;
}

.contact-grid {
  display: grid;
  gap: 3rem;
}

@media (min-width: 768px) {
  .contact-grid {
    grid-template-columns: 1fr 1.2fr;
  }
}

.contact-info__item {
  margin-bottom: 1.5rem;
}

.contact-info__label {
  display: block;
  font-size: var(--text-xs);
  font-weight: var(--font-weight-semibold);
  letter-spacing: var(--tracking-eyebrow);
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: 0.35rem;
}

.contact-info__value {
  font-size: var(--text-lg);
  color: var(--color-primary);
  font-weight: var(--font-weight-medium);
}

.contact-form {
  padding: 2.25rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow);
}

.form-group {
  margin-bottom: 1.25rem;
}

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

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

.form-group input:focus,
.form-group textarea:focus {
  outline: 1px solid var(--color-accent);
  outline-offset: 1px;
  border-color: var(--color-accent);
}

.form-group textarea {
  min-height: 120px;
  resize: vertical;
}

.form-checkbox {
  display: flex;
  gap: 0.5rem;
  align-items: flex-start;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.form-checkbox input {
  margin-top: 0.2rem;
}

.form-error {
  display: none;
  margin-top: 0.35rem;
  font-size: var(--text-sm);
  color: #c0392b;
}

.form-group.is-invalid .form-error {
  display: block;
}

.form-group.is-invalid input,
.form-group.is-invalid textarea {
  border-color: #c0392b;
}

/* ——— Footer: dark navy ——— */

.footer {
  background: linear-gradient(
    165deg,
    var(--color-primary) 0%,
    var(--color-primary-deep) 100%
  );
  color: var(--color-on-band-muted);
  font-size: var(--text-sm);
  line-height: 1.55;
}

.footer__top {
  padding: clamp(3rem, 6vw, 4.5rem) 0 2.5rem;
}

.footer__grid {
  display: grid;
  gap: 2.5rem;
}

@media (min-width: 768px) {
  .footer__grid {
    grid-template-columns: minmax(0, 1.35fr) repeat(2, minmax(0, 1fr)) minmax(0, 1fr);
    gap: 2rem 3rem;
    align-items: start;
  }
}

@media (max-width: 899px) {
  .footer__grid .footer__col {
    display: none;
  }
}

@media (min-width: 768px) and (max-width: 899px) {
  .footer__grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
  }
}

.footer__brand {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  max-width: 22rem;
}

.footer__logo {
  display: inline-flex;
  align-items: center;
  gap: 0.85rem;
  align-self: flex-start;
  text-decoration: none;
  color: var(--color-on-band);
  transition: opacity var(--transition);
}

.footer__logo:hover {
  color: var(--color-on-band);
  opacity: 0.9;
}

.footer__logo-mark {
  width: 38px;
  height: 38px;
  flex-shrink: 0;
}

.footer__logo-wordmark {
  font-size: var(--text-xl);
  font-weight: var(--font-weight-bold);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  line-height: 1.15;
}

@media (max-width: 899px) {
  .footer__logo-mark {
    width: 36px;
    height: 36px;
  }
}

@media (min-width: 900px) {
  .footer__logo-mark {
    width: 40px;
    height: 40px;
  }
}

.footer__subtitle {
  margin: 0;
  font-size: var(--text-sm);
  line-height: 1.6;
  color: var(--color-on-band-muted);
}

.footer__col-title {
  margin: 0 0 1rem;
  font-size: var(--text-xs);
  font-weight: var(--font-weight-semibold);
  letter-spacing: var(--tracking-eyebrow);
  text-transform: uppercase;
  color: var(--color-on-band);
}

.footer__links {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.footer__links a {
  font-size: var(--text-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-on-band-muted);
  text-decoration: none;
  transition: color var(--transition);
}

.footer__links a:hover {
  color: var(--color-on-band);
}

.footer__contacts {
  display: grid;
  gap: 1.25rem;
  margin: 0;
  font-style: normal;
}

.footer__contact {
  display: grid;
  gap: 0.3rem;
}

.footer__label {
  font-size: var(--text-xs);
  font-weight: var(--font-weight-semibold);
  letter-spacing: var(--tracking-eyebrow);
  text-transform: uppercase;
  color: var(--color-on-band-muted);
  opacity: 0.85;
}

.footer__value {
  font-size: var(--text-sm);
  color: var(--color-on-band);
  line-height: 1.45;
}

.footer__value--link {
  color: var(--color-on-band);
  font-weight: var(--font-weight-semibold);
  text-decoration: none;
  transition: opacity var(--transition);
}

.footer__value--link:hover {
  opacity: 0.82;
}

.footer__bar {
  padding: 1.35rem 0;
  border-top: 1px solid rgba(255, 255, 255, 0.14);
  color: var(--color-on-band-muted);
}

.footer__bar-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem 1.5rem;
}

.footer__copy {
  margin: 0;
  flex: 1 1 12rem;
  min-width: 0;
  font-size: var(--text-xs);
  line-height: 1.4;
  color: var(--color-on-band-muted);
}

.footer__link {
  flex-shrink: 0;
  font-size: var(--text-xs);
  font-weight: var(--font-weight-medium);
  color: var(--color-on-band-link);
  text-decoration: underline;
  text-underline-offset: 0.15em;
  transition: opacity var(--transition);
}

.footer__link:hover {
  color: var(--color-on-band);
  opacity: 0.85;
}

/* Cookie */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 200;
  padding: 1rem;
  background: var(--color-primary);
  color: #fff;
  transform: translateY(100%);
  transition: transform 0.3s ease;
}

.cookie-banner.is-visible {
  transform: translateY(0);
}

.cookie-banner__inner {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
  justify-content: space-between;
  max-width: var(--container);
  margin: 0 auto;
  font-size: var(--text-sm);
}

.cookie-banner .btn--primary:hover {
  background: var(--color-accent);
}