/* OWGS — base styles. Utilitarian, monochrome, theme-aware. */

:root {
  --bg: #ffffff;
  --fg: #0a0a0a;
  --muted: #5c5c5c;
  --border: #dcdcdc;
  --border-strong: #0a0a0a;
  --surface: #f4f4f4;
  --focus: #0a0a0a;

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    Helvetica, Arial, sans-serif;

  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2rem;
  --space-5: 3rem;
  --space-6: 4.5rem;

  --container: 42rem;
  --radius: 2px;
  color-scheme: light;
}

html[data-theme="dark"] {
  --bg: #0a0a0a;
  --fg: #f2f2f2;
  --muted: #a3a3a3;
  --border: #2a2a2a;
  --border-strong: #f2f2f2;
  --surface: #161616;
  --focus: #f2f2f2;
  color-scheme: dark;
}

@media (prefers-color-scheme: dark) {
  html:not([data-theme="light"]) {
    --bg: #0a0a0a;
    --fg: #f2f2f2;
    --muted: #a3a3a3;
    --border: #2a2a2a;
    --border-strong: #f2f2f2;
    --surface: #161616;
    --focus: #f2f2f2;
    color-scheme: dark;
  }
}

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

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  transition: background-color 0.15s ease, color 0.15s ease;
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  left: var(--space-2);
  top: -3rem;
  background: var(--bg);
  color: var(--fg);
  border: 1px solid var(--border-strong);
  padding: var(--space-1) var(--space-2);
  z-index: 100;
  transition: top 0.15s ease;
}

.skip-link:focus {
  top: var(--space-2);
}

:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
}

/* ---------- Header ---------- */

.site-header {
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: var(--bg);
  z-index: 20;
}

.site-header__inner {
  max-width: 64rem;
  margin: 0 auto;
  padding: var(--space-2) var(--space-3);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
}

.brand {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  line-height: 0;
}

.brand img {
  height: 28px;
  width: auto;
}

.header-controls {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  position: relative;
}

.icon-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  padding: 0;
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius);
  color: var(--fg);
  cursor: pointer;
}

.icon-button:hover {
  border-color: var(--border);
}

.icon-button svg {
  width: 22px;
  height: 22px;
  fill: currentColor;
}

.icon-swap svg {
  display: none;
}
.icon-swap[data-theme-icon="dark"] .icon-to-light,
.icon-swap[data-theme-icon="light"] .icon-to-dark {
  display: block;
}

.menu-wrap {
  position: relative;
}

.site-menu {
  position: absolute;
  right: 0;
  top: calc(100% + var(--space-1));
  min-width: 11rem;
  background: var(--bg);
  border: 1px solid var(--border-strong);
  padding: var(--space-1);
  list-style: none;
  margin: 0;
}

.site-menu[hidden] {
  display: none;
}

.site-menu li + li {
  margin-top: 2px;
}

.site-menu a {
  display: block;
  padding: var(--space-1) var(--space-2);
  text-decoration: none;
  border-radius: var(--radius);
}

.site-menu a:hover {
  background: var(--surface);
}

.site-menu a[aria-current="page"] {
  font-weight: 600;
}

/* ---------- Main ---------- */

.site-main {
  flex: 1;
}

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: var(--space-5) var(--space-3);
}

/* ---------- Hero (home) ---------- */

.hero {
  text-align: center;
  padding-top: var(--space-6);
  padding-bottom: var(--space-6);
}

.hero__mark {
  width: 96px;
  height: auto;
  margin: 0 auto var(--space-4);
}

.hero__eyebrow {
  margin: 0 0 var(--space-1);
  font-size: 0.8125rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.hero h1 {
  margin: 0 0 var(--space-3);
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  letter-spacing: 0.02em;
}

.hero p {
  margin: 0 auto var(--space-4);
  max-width: 32rem;
  color: var(--muted);
  font-size: 1.0625rem;
}

.button {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: 0.7em 1.4em;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  text-decoration: none;
  font-weight: 600;
  color: var(--fg);
  background: transparent;
  cursor: pointer;
  font-size: 0.9375rem;
  font-family: inherit;
}

.button:hover {
  background: var(--fg);
  color: var(--bg);
}

.button svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

/* ---------- Page header (contact) ---------- */

.page-header {
  margin-bottom: var(--space-4);
}

.page-header h1 {
  margin: 0 0 var(--space-1);
  font-size: 2rem;
  font-weight: 700;
}

.page-header p {
  margin: 0;
  color: var(--muted);
}

/* ---------- Form ---------- */

.form-field {
  margin-bottom: var(--space-3);
}

.form-field label {
  display: block;
  margin-bottom: var(--space-1);
  font-weight: 600;
  font-size: 0.9375rem;
}

.form-field input,
.form-field textarea {
  width: 100%;
  padding: 0.65em 0.75em;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--fg);
  font: inherit;
}

.form-field input:focus,
.form-field textarea:focus {
  border-color: var(--border-strong);
}

.form-field textarea {
  resize: vertical;
  min-height: 8rem;
}

.form-note {
  margin-top: var(--space-2);
  font-size: 0.875rem;
  color: var(--muted);
}

/* ---------- Footer ---------- */

.site-footer {
  border-top: 1px solid var(--border);
}

.site-footer__inner {
  max-width: 64rem;
  margin: 0 auto;
  padding: var(--space-3);
  display: flex;
  align-items: center;
  gap: var(--space-1);
  color: var(--muted);
  font-size: 0.875rem;
}

.site-footer__inner img {
  height: 16px;
  width: auto;
  opacity: 0.8;
}