@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;500;700;900&display=swap");

:root {
  --swiss-bg: #ffffff;
  --swiss-fg: #000000;
  --swiss-muted: #f2f2f2;
  --swiss-accent: #ff3000;
  --swiss-border: #000000;
  --swiss-border-strong: 4px solid var(--swiss-border);
  --swiss-border-base: 2px solid var(--swiss-border);
  --site-max-width: 1320px;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--swiss-bg);
  color: var(--swiss-fg);
  font-family: "Inter", sans-serif;
  position: relative;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  opacity: 0.22;
  background-image:
    radial-gradient(circle at 24% 20%, rgba(0, 0, 0, 0.05) 0 1px, transparent 1px),
    radial-gradient(circle at 70% 64%, rgba(0, 0, 0, 0.04) 0 1px, transparent 1px);
  background-size: 22px 22px, 18px 18px;
}

.contact-shell {
  width: min(calc(100% - 2rem), var(--site-max-width));
  margin: 0 auto;
  padding: 7rem 0 2.5rem;
}

.contact-frame {
  border-top: var(--swiss-border-strong);
  padding: 1rem 0 3.5rem;
}

.section-number {
  color: var(--swiss-accent);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 1.2rem;
}

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
  gap: var(--space-lg);
  align-items: start;
}

.contact-copy h1 {
  margin: 0 0 1rem;
  font-size: clamp(2.5rem, 7vw, 5.5rem);
  line-height: 0.9;
  letter-spacing: -0.07em;
  text-transform: uppercase;
  max-width: 11ch;
}

.contact-copy p {
  margin: 0 0 var(--space-lg);
  max-width: 55ch;
  font-size: 1rem;
  line-height: 1.7;
}

.back-link {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  text-decoration: none;
  border-bottom: var(--swiss-border-base);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.8rem;
  font-weight: 700;
}

.back-link:hover,
.back-link:focus-visible {
  color: var(--swiss-accent);
}

.contact-form {
  border: var(--swiss-border-base);
  background: var(--swiss-muted);
  padding: var(--space-lg);
  display: grid;
  gap: var(--space-md);
}

.field {
  display: grid;
  gap: 0.55rem;
}

.field > span {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.field input,
.field textarea {
  width: 100%;
  border: var(--swiss-border-base);
  background: var(--swiss-bg);
  color: var(--swiss-fg);
  padding: 0.85rem 0.9rem;
  border-radius: 0;
}

.field input {
  min-height: 50px;
}

.field textarea {
  min-height: 170px;
  resize: vertical;
}

.field input:focus-visible,
.field textarea:focus-visible,
.submit-btn:focus-visible,
.back-link:focus-visible {
  outline: 2px solid var(--swiss-accent);
  outline-offset: 3px;
}

.submit-btn {
  min-height: 54px;
  border: var(--swiss-border-base);
  background: var(--swiss-fg);
  color: var(--swiss-bg);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background-color 150ms linear, color 150ms linear;
}

.submit-btn:hover,
.submit-btn:focus-visible {
  background: var(--swiss-accent);
  color: var(--swiss-bg);
}

.swiss-grid-pattern {
  background-image:
    linear-gradient(rgba(0, 0, 0, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 0, 0, 0.05) 1px, transparent 1px);
  background-size: 24px 24px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

@media (max-width: 980px) {
  .contact-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 680px) {
  .contact-shell {
    width: min(calc(100% - 1rem), var(--site-max-width));
    padding-top: 6rem;
  }

  .contact-frame {
    padding-bottom: 2.5rem;
  }

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