/* === Reset === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

/* === Theme Variables === */
:root {
  --bg: #fbfbfb;
  --dot: #969696;
  --line: #c8c8c8;
}

[data-theme="dark"] {
  --bg: #111111;
  --dot: #444444;
  --line: #2a2a2a;
}

/* === Base === */
body {
  min-height: 100vh;
  background-color: var(--bg);
  overflow: hidden;
}

/* === Canvas (wheat field background) === */
canvas {
  display: block;
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 0;
}

/* === Content Layer === */
.content {
  position: relative;
  z-index: 1;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  padding: 2rem;
}

/* === Layout: main card + projects side by side === */
.layout {
  display: flex;
  gap: 0.75rem;
  align-items: stretch;
}

/* === Card (shared) === */
.card {
  font-family: "Fira Mono", "SF Mono", "Cascadia Code", "Consolas", monospace;
  border-radius: 8px;
}

/* Light theme: dark card, white text */
[data-theme="light"] .card {
  color: #ffffff;
  background: rgba(20, 20, 20, 0.92);
}

/* Dark theme: light card, dark text */
[data-theme="dark"] .card {
  background: rgba(245, 245, 245, 0.94);
  color: #000000;
}

/* === Main Card === */
.card-main {
  max-width: 28rem;
  padding: 2.5rem;
  font-size: 0.85rem;
  line-height: 1.7;
}

.card-main h1 {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 0.15rem;
  letter-spacing: -0.01em;
}

.card-main .subtitle {
  font-size: 0.85rem;
}

.card-main .location {
  font-size: 0.8rem;
  margin-bottom: 1.5rem;
}

[data-theme="light"] .card-main .subtitle { color: #aaa; }
[data-theme="light"] .card-main .location { color: #777; }
[data-theme="dark"] .card-main .subtitle { color: #555; }
[data-theme="dark"] .card-main .location { color: #888; }

.card-main p {
  margin-bottom: 1rem;
}

/* === Links === */
.card-main .links {
  margin-top: 1.5rem;
  font-size: 0.8rem;
}

.card-main .links a {
  text-decoration: none;
}

.card-main .links span {
  margin: 0 0.4rem;
}

[data-theme="light"] .card-main .links a { color: #ffffff; border-bottom: 1px solid #555; }
[data-theme="light"] .card-main .links a:hover { border-bottom-color: #ffffff; }
[data-theme="light"] .card-main .links span { color: #555; }

[data-theme="dark"] .card-main .links a { color: #000000; border-bottom: 1px solid #ccc; }
[data-theme="dark"] .card-main .links a:hover { border-bottom-color: #000000; }
[data-theme="dark"] .card-main .links span { color: #999; }

/* === Projects 2x2 Grid === */
.projects {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  width: 28rem;
}

/* === Project Card === */
.card-project {
  padding: 1rem;
  font-size: 0.75rem;
  line-height: 1.5;
  text-decoration: none;
  display: flex;
  flex-direction: column;
  transition: background 0.15s;
}

.card-project h3 {
  font-size: 0.85rem;
  font-weight: 700;
  margin-bottom: 0.4rem;
}

.card-project .project-desc {
  margin-bottom: auto;
  font-size: 0.72rem;
  line-height: 1.5;
}

.card-project .project-tags {
  display: block;
  margin-top: 0.6rem;
  font-size: 0.65rem;
}

[data-theme="light"] .card-project:hover { background: rgba(40, 40, 40, 0.95); }
[data-theme="light"] .card-project .project-desc { color: #bbb; }
[data-theme="light"] .card-project .project-tags { color: #777; }

[data-theme="dark"] .card-project:hover { background: rgba(235, 235, 235, 0.97); }
[data-theme="dark"] .card-project .project-desc { color: #666; }
[data-theme="dark"] .card-project .project-tags { color: #999; }

/* === Responsive: stack on small screens === */
@media (max-width: 780px) {
  .layout {
    flex-direction: column;
    align-items: center;
  }

  .card-main {
    max-width: 100%;
  }

  .projects {
    width: 100%;
    max-width: 28rem;
  }
}

@media (max-width: 480px) {
  .projects {
    grid-template-columns: 1fr;
  }
}

/* === Theme Toggle === */
.theme-toggle {
  position: fixed;
  top: 1rem;
  right: 1rem;
  display: flex;
  gap: 0.25rem;
  z-index: 10;
}

.theme-toggle button {
  font-size: 1.1rem;
  width: 2rem;
  height: 2rem;
  border-radius: 6px;
  border: 1px solid rgba(150, 150, 150, 0.3);
  background: rgba(255, 255, 255, 0.5);
  cursor: pointer;
  line-height: 1;
}

[data-theme="dark"] .theme-toggle button {
  background: rgba(30, 30, 30, 0.5);
  border-color: rgba(100, 100, 100, 0.3);
}

.theme-toggle button[aria-pressed="true"] {
  outline: 2px solid var(--dot);
  outline-offset: 1px;
}