:root {
  --bg: #fafaf7;
  --surface: #ffffff;
  --text: #18181b;
  --text-muted: #6b7280;
  --border: #e5e7eb;
  --accent: #2f5d50;
  --accent-soft: rgba(47, 93, 80, 0.08);
  --shadow: 0 1px 2px rgba(15, 23, 42, 0.04),
    0 8px 24px rgba(15, 23, 42, 0.05);
  --radius: 14px;
  --transition: 200ms ease;
}

[data-theme="dark"] {
  --bg: #0e0f12;
  --surface: #16181d;
  --text: #f4f4f5;
  --text-muted: #9ca3af;
  --border: #26282f;
  --accent: #7ec8b1;
  --accent-soft: rgba(126, 200, 177, 0.12);
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.4),
    0 12px 32px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  transition: background var(--transition), color var(--transition);
  min-height: 100vh;
}

.page {
  max-width: 920px;
  margin: 0 auto;
  padding: 96px 24px 120px;
}

.hero {
  text-align: center;
  margin-bottom: 72px;
}

.hero__eyebrow {
  margin: 0 0 16px;
  font-size: 13px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 600;
}

.hero__title {
  margin: 0 0 16px;
  font-size: clamp(40px, 6vw, 64px);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.05;
}

.hero__tagline {
  margin: 0 auto;
  max-width: 520px;
  font-size: 18px;
  color: var(--text-muted);
}

.clients {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}

.client-card {
  display: flex;
  flex-direction: column;
  gap: 20px;
  padding: 28px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: transform var(--transition), border-color var(--transition);
}

.client-card--link {
  text-decoration: none;
  color: inherit;
  cursor: pointer;
}

.client-card--link:hover,
.client-card--link:focus-visible {
  transform: translateY(-2px);
  border-color: var(--accent);
  outline: none;
}

.client-card--link:focus-visible {
  box-shadow: 0 0 0 3px var(--accent-soft), var(--shadow);
}

.client-card[aria-disabled="true"] {
  cursor: default;
}

.client-card__mark {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--accent-soft);
  color: var(--accent);
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: 18px;
}

.client-card__body {
  flex: 1;
}

.client-card__company {
  margin: 0 0 4px;
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 600;
}

.client-card__name {
  margin: 0 0 4px;
  font-size: 20px;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.client-card__industry {
  margin: 0;
  font-size: 14px;
  color: var(--text-muted);
}

.client-card__status {
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.client-card__status--open {
  color: var(--accent);
  font-weight: 600;
}

.theme-toggle {
  position: fixed;
  top: 20px;
  right: 20px;
  width: 40px;
  height: 40px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
  display: grid;
  place-items: center;
  box-shadow: var(--shadow);
  transition: background var(--transition), border-color var(--transition),
    transform var(--transition);
}

.theme-toggle:hover {
  border-color: var(--accent);
  transform: scale(1.05);
}

.theme-toggle__icon {
  position: absolute;
  font-size: 16px;
  transition: opacity var(--transition), transform var(--transition);
}

.theme-toggle__icon[data-icon="sun"] {
  opacity: 1;
  transform: rotate(0deg);
}

.theme-toggle__icon[data-icon="moon"] {
  opacity: 0;
  transform: rotate(-90deg);
}

[data-theme="dark"] .theme-toggle__icon[data-icon="sun"] {
  opacity: 0;
  transform: rotate(90deg);
}

[data-theme="dark"] .theme-toggle__icon[data-icon="moon"] {
  opacity: 1;
  transform: rotate(0deg);
}

@media (max-width: 600px) {
  .page {
    padding: 72px 20px 96px;
  }

  .hero {
    margin-bottom: 56px;
  }
}