/* Contact page — matches index.html (Digital MathLab theme) */

.page-contact .nav a.is-active {
  color: var(--blue-primary);
  font-weight: 500;
}

.contact-page {
  background: #fff;
}

.contact-hero {
  padding: 56px 0 48px;
  margin-top: var(--header-h);
  border-bottom: 1px solid var(--gray-300);
  background:
    radial-gradient(ellipse 120% 80% at 50% -20%, rgba(0, 114, 255, 0.1) 0%, transparent 55%),
    linear-gradient(180deg, var(--blue-50) 0%, #fff 46%);
}

.contact-hero__inner {
  text-align: center;
  max-width: 46rem;
  margin: 0 auto;
}

.contact-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  margin-bottom: 20px;
  background: var(--blue-50);
  border: 1px solid rgba(0, 114, 255, 0.22);
  border-radius: var(--radius-sm);
  font-size: 16px;
  font-weight: 500;
  color: var(--blue-primary);
}

.contact-badge__icon {
  color: var(--blue-primary);
}

.contact-hero__title {
  margin: 0 0 16px;
  font-size: clamp(2rem, 4.5vw, 3.0625rem);
  font-weight: 600;
  line-height: 1.15;
  color: var(--gray-800);
  letter-spacing: 0;
}

.contact-hero__lead {
  margin: 0;
  font-size: clamp(1rem, 2vw, 1.125rem);
  line-height: 1.6;
  color: var(--gray-500);
}

.contact-section {
  padding: clamp(48px, 6vw, 80px) 0 clamp(64px, 8vw, 100px);
  background: var(--gray-50);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(16px, 3vw, 24px);
  align-items: start;
}

@media (min-width: 960px) {
  .contact-grid {
    grid-template-columns: 1.15fr 0.85fr;
    gap: clamp(20px, 3vw, 32px);
  }
}

.contact-card {
  border-radius: var(--radius-md);
  border: 1px solid var(--gray-300);
  background: #fff;
  box-shadow: 0 8px 32px rgba(15, 23, 42, 0.05);
  padding: clamp(24px, 3vw, 32px);
}

.contact-card--compact,
.contact-card--map {
  padding: clamp(20px, 3vw, 28px);
}

.contact-card__title {
  margin: 0 0 6px;
  font-size: 20px;
  font-weight: 700;
  color: var(--gray-800);
}

.contact-card__lead {
  margin: 0 0 24px;
  font-size: 16px;
  color: var(--gray-500);
  line-height: 1.5;
}

.contact-form__row {
  margin-bottom: 16px;
}

.contact-form__row--2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

@media (min-width: 640px) {
  .contact-form__row--2 {
    grid-template-columns: 1fr 1fr;
  }
}

.contact-form__field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.contact-form__label {
  font-size: 14px;
  font-weight: 500;
  color: var(--gray-800);
}

.contact-form__optional {
  font-weight: 400;
  color: var(--gray-500);
}

.contact-form__input {
  width: 100%;
  min-height: 48px;
  padding: 12px 14px;
  font-family: var(--font);
  font-size: 16px;
  color: var(--gray-800);
  background: #fff;
  border: 1px solid #d1d5db;
  border-radius: var(--radius-md);
  box-shadow: none;
  transition: border-color 0.2s, outline 0.2s, box-shadow 0.2s;
}

.contact-form__input::placeholder {
  color: #9ca3af;
}

/* Keep grey borders until focus (override browser :invalid pink/red) */
.contact-form__input:invalid {
  border-color: #d1d5db;
  box-shadow: none;
}

.contact-form__input:focus {
  outline: none;
  border-color: var(--blue-primary);
  box-shadow: 0 0 0 3px rgba(0, 114, 255, 0.15);
}

.contact-form__input:focus:invalid {
  border-color: var(--blue-primary);
  box-shadow: 0 0 0 3px rgba(0, 114, 255, 0.15);
}

.contact-form.is-submitted .contact-form__input:user-invalid {
  border-color: #fca5a5;
  box-shadow: none;
}

.contact-form.is-submitted .contact-form__input:user-invalid:focus {
  border-color: #ef4444;
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.15);
}

.contact-form__message {
  min-height: 140px;
  resize: vertical;
  line-height: 1.5;
}

.contact-form__status {
  margin: 20px 0;
  padding: 12px 16px;
  font-size: 15px;
  line-height: 1.45;
  border-radius: var(--radius-sm);
  border: 1px solid var(--gray-300);
  background: var(--gray-50);
  color: var(--gray-500);
}

.contact-form__status.is-success {
  background: var(--mint-card);
  border-color: var(--mint-border);
  color: var(--mint-text);
}

.contact-form__status.is-error {
  background: var(--peach-card);
  border-color: var(--peach-border);
  color: var(--peach-text);
}

.contact-form__submit {
  width: 100%;
  margin-top: 8px;
  min-height: 54px;
  font-size: 16px;
  font-weight: 500;
  border-radius: var(--radius-md);
}

.contact-side {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(16px, 3vw, 24px);
}

.contact-methods {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.contact-methods__item {
  margin: 0;
  padding: 20px 24px;
  border-radius: var(--radius-md);
  border: 1px solid var(--gray-300);
  background: var(--blue-50);
}

.contact-methods__label {
  display: block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--gray-500);
  margin-bottom: 8px;
}

.contact-methods__value {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--gray-800);
}

a.contact-methods__value {
  color: var(--blue-primary);
  text-decoration: none;
}

a.contact-methods__value:hover,
a.contact-methods__value:focus-visible {
  color: var(--blue-500);
  text-decoration: underline;
}

.contact-methods__value--static {
  margin: 0;
  font-size: 16px;
  font-weight: 400;
  color: var(--gray-800);
}

.contact-methods__value--static strong {
  font-weight: 700;
  color: var(--gray-900);
}

.contact-map {
  margin-top: 12px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid var(--gray-300);
  background: var(--blue-50);
}

.contact-map iframe {
  display: block;
  width: 100%;
  height: min(44dvh, 320px);
  border: 0;
}

.contact-page__note {
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.5;
  color: var(--gray-500);
}

.contact-page__note a {
  color: var(--blue-primary);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.contact-page__note a:hover {
  color: var(--blue-500);
}

@media (max-width: 1024px) {
  .contact-section {
    padding: clamp(40px, 5vw, 64px) 0 clamp(56px, 7vw, 80px);
  }

  .contact-grid {
    gap: 20px;
  }
}

@media (max-width: 768px) {
  .contact-hero {
    padding: 40px 0 36px;
  }

  .contact-hero__title {
    font-size: clamp(1.75rem, 5vw, 2.25rem);
  }

  .contact-card {
    padding: 20px;
  }

  .contact-map iframe {
    height: min(50dvh, 280px);
  }
}

@media (max-width: 640px) {
  .contact-hero {
    padding: 32px 0 28px;
  }

  .contact-badge {
    font-size: 14px;
    padding: 6px 12px;
    margin-bottom: 14px;
  }

  .contact-hero__lead {
    font-size: 0.9375rem;
  }

  .contact-form__submit {
    width: 100%;
    max-width: none;
  }

  .contact-methods__value {
    font-size: 15px;
    word-break: break-word;
  }

  .contact-page__note {
    font-size: 12px;
  }
}

@media (max-width: 900px) {
  .page-contact .nav.open {
    top: var(--header-h);
  }
}

@media (prefers-reduced-motion: reduce) {
  .contact-form__input {
    transition: none;
  }
}