:root {
  color-scheme: light;
  --ink: #17191d;
  --muted: #68717a;
  --line: #cbd1d6;
  --page: #e7e9e8;
  --nav-panel: #20252c;
  --armor-black: #050607;
  --hull-gray: #aeb6bd;
  --blue: #3d7ea6;
  --shadow: 0 18px 45px rgba(17, 20, 25, 0.16);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 82% 18%, rgba(61, 126, 166, 0.16), transparent 28%),
    linear-gradient(135deg, rgba(255, 255, 255, 0.62), rgba(174, 182, 189, 0.24)),
    var(--page);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
}

img,
svg {
  display: block;
}

h1,
h2,
p {
  margin: 0;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
  padding: 24px 0;
}

.site-mark {
  display: grid;
  width: 54px;
  height: 54px;
  overflow: hidden;
  place-items: center;
  border: 0;
  border-radius: 8px;
  background: transparent;
  box-shadow: none;
  text-decoration: none;
}

.site-mark img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.site-nav a,
.site-nav .nav-disabled {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 12px;
  color: var(--ink);
  border: 1px solid rgba(17, 20, 25, 0.1);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.45);
  text-decoration: none;
}

.site-nav a:hover {
  color: var(--armor-black);
  border-color: rgba(61, 126, 166, 0.42);
  background: rgba(255, 255, 255, 0.84);
}

.site-nav .nav-disabled {
  color: rgba(17, 20, 25, 0.42);
  border-color: rgba(17, 20, 25, 0.08);
  cursor: not-allowed;
  opacity: 0.72;
}

.personal-main {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
  padding: 24px 0 64px;
}

.personal-hero {
  display: grid;
  grid-template-columns: minmax(220px, 300px) minmax(0, 1fr);
  gap: clamp(24px, 5vw, 56px);
  align-items: center;
  min-height: calc((100vh - 180px) * 0.6);
}

.portrait-frame {
  padding: 10px;
  border: 1px solid rgba(17, 20, 25, 0.18);
  border-radius: 8px;
  background: linear-gradient(145deg, #ffffff, #dfe3e5);
  box-shadow: var(--shadow);
}

.portrait-photo {
  width: 100%;
  height: 360px;
  object-fit: cover;
  object-position: 50% 18%;
  border: 1px solid rgba(17, 20, 25, 0.16);
  border-radius: 6px;
  filter: contrast(1.03);
}

.intro-copy {
  max-width: 650px;
}

.intro-copy h1 {
  font-size: clamp(42px, 7.4vw, 74px);
  line-height: 0.95;
  letter-spacing: -0.07em;
}

.lede {
  max-width: 620px;
  margin-top: 18px;
  color: #394149;
  font-size: clamp(17px, 2vw, 21px);
  line-height: 1.45;
}

.info-section,
.apps-section,
.connect-section {
  margin-top: 34px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.72);
  box-shadow: var(--shadow);
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.info-grid article {
  padding-top: 18px;
  border-top: 4px solid var(--hull-gray);
}

.info-grid p {
  margin-top: 10px;
  color: var(--muted);
  line-height: 1.6;
}

.apps-section {
  display: grid;
  gap: 24px;
}

.app-logo-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px;
}

.app-logo-card {
  display: grid;
  min-height: 96px;
  place-items: center;
  padding: 18px;
  color: var(--ink);
  border: 1px solid rgba(17, 20, 25, 0.1);
  border-radius: 12px;
  background: rgba(248, 249, 248, 0.78);
  text-decoration: none;
  transition:
    border-color 160ms ease,
    box-shadow 160ms ease,
    transform 160ms ease;
}

.app-logo-card:hover {
  border-color: rgba(61, 126, 166, 0.38);
  box-shadow: 0 14px 28px rgba(17, 20, 25, 0.1);
  transform: translateY(-2px);
}

.app-logo-card span {
  font-size: clamp(20px, 2.2vw, 28px);
  font-weight: 900;
  letter-spacing: -0.04em;
}

.kahua-logo span {
  color: #185d4b;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.box-logo span {
  color: #0061d5;
  font-size: clamp(28px, 3vw, 38px);
  letter-spacing: -0.08em;
  text-transform: lowercase;
}

.copilot-logo span {
  color: transparent;
  background: linear-gradient(90deg, #185abd, #3f8f69, #7a4cc2);
  background-clip: text;
}

.chatgpt-logo span {
  color: #17191d;
  font-weight: 800;
}

.claude-logo span {
  color: #b7683a;
  font-family: Georgia, "Times New Roman", serif;
  font-weight: 700;
  letter-spacing: -0.06em;
}

.connect-section {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.eyebrow {
  color: var(--blue);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.connect-section h2,
.apps-section h2,
.info-grid h2 {
  color: #152033;
}

.social-links {
  display: flex;
  gap: 12px;
}

.social-links a {
  display: grid;
  width: 48px;
  height: 48px;
  place-items: center;
  color: #ffffff;
  border: 1px solid rgba(61, 126, 166, 0.54);
  border-radius: 8px;
  background: var(--nav-panel);
}

.social-links a:hover {
  background: var(--blue);
}

.social-links svg {
  width: 24px;
  height: 24px;
  fill: currentColor;
}

@media (max-width: 980px) {
  .site-header,
  .connect-section {
    align-items: flex-start;
    flex-direction: column;
  }

  .personal-main {
    padding-top: 24px;
  }

  .personal-hero,
  .info-grid,
  .app-logo-grid {
    grid-template-columns: 1fr;
  }

  .portrait-frame {
    max-width: 420px;
  }

  .portrait-photo {
    height: 320px;
  }
}