/* Tom Langston, CV site. Clean hand-written styles, no framework. */

:root {
  --bg: #1e1e21;
  --bg-2: #232326;
  --surface: #2a2a2f;
  --text: #e9e9ec;
  --muted: #a2a2ab;
  --accent: #5566e8;
  --accent-2: #8b5cf6;
  --border: rgba(255, 255, 255, 0.09);
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.4), 0 8px 24px rgba(0, 0, 0, 0.25);
}

:root[data-theme="light"] {
  --bg: #f3f4f6;
  --bg-2: #eceef1;
  --surface: #ffffff;
  --text: #1e1e22;
  --muted: #565661;
  --accent: #4453d6;
  --accent-2: #7c4fe0;
  --border: rgba(0, 0, 0, 0.09);
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.08), 0 8px 24px rgba(0, 0, 0, 0.06);
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  min-height: 100vh;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
  color: var(--text);
  background:
    radial-gradient(1100px 600px at 78% -8%, rgba(34, 211, 238, 0.10), transparent 60%),
    radial-gradient(900px 600px at 0% 108%, rgba(224, 97, 200, 0.08), transparent 55%),
    linear-gradient(160deg, var(--bg) 0%, var(--bg-2) 100%);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.page {
  max-width: 880px;
  margin: 0 auto;
  padding: clamp(2.5rem, 6vw, 5rem) clamp(1.25rem, 5vw, 2rem) 4rem;
}

/* Intro */
.intro {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(1.5rem, 4vw, 2.5rem);
  margin-bottom: 3rem;
}
.intro-text { flex: 0 1 auto; min-width: 0; }

.avatar {
  width: 148px;
  height: 148px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--surface);
  box-shadow: var(--shadow), 0 0 0 1px var(--border);
  margin-bottom: 0;
  flex-shrink: 0;
}

h1 {
  font-size: clamp(2rem, 6vw, 2.75rem);
  line-height: 1.1;
  margin: 0 0 0.5rem;
  letter-spacing: -0.02em;
}

.tagline {
  color: var(--muted);
  font-size: 1.05rem;
  margin: 0 0 1.5rem;
  max-width: 34rem;
}

.contacts {
  list-style: none;
  display: flex;
  gap: 0.75rem;
  justify-content: flex-start;
  flex-wrap: wrap;
  margin: 0;
  padding: 0;
}

.contacts a {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.95rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  color: var(--text);
  font-size: 0.95rem;
  font-weight: 500;
  transition: border-color 0.2s ease, transform 0.2s ease, color 0.2s ease;
}
.contacts a:hover {
  text-decoration: none;
  color: var(--accent);
  border-color: var(--accent);
  transform: translateY(-1px);
}
.contacts svg { display: block; }

/* Content blocks */
.block {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.5rem clamp(1.25rem, 4vw, 2rem);
  margin-bottom: 1.25rem;
  box-shadow: var(--shadow);
}

h2 {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin: 0 0 1rem;
  padding-bottom: 0.6rem;
  border-bottom: 1px solid var(--border);
}

.block p { margin: 0 0 0.85rem; color: var(--text); }
.block p:last-child { margin-bottom: 0; }
.more { margin-top: 1rem; font-size: 0.9rem; }

.bullets { margin: 0; padding: 0; list-style: none; }
.bullets li {
  position: relative;
  padding-left: 1.4rem;
  margin-bottom: 0.55rem;
}
.bullets li:last-child { margin-bottom: 0; }
.bullets li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
}

/* Home link (top-left), mirrors the theme toggle top-right */
.home-link {
  position: fixed;
  top: 1rem;
  left: 1rem;
  width: 42px;
  height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
  color: var(--text);
  box-shadow: var(--shadow);
  transition: color 0.2s ease, border-color 0.2s ease;
  z-index: 10;
}
.home-link:hover { color: var(--accent); border-color: var(--accent); text-decoration: none; }

/* Theme toggle */
.theme-toggle {
  position: fixed;
  top: 1rem;
  right: 1rem;
  width: 42px;
  height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
  box-shadow: var(--shadow);
  transition: color 0.2s ease, border-color 0.2s ease;
  z-index: 10;
}
.theme-toggle:hover { color: var(--accent); border-color: var(--accent); }
.theme-toggle .icon-moon { display: none; }
.theme-toggle .icon-sun { display: block; }
:root[data-theme="light"] .theme-toggle .icon-sun { display: none; }
:root[data-theme="light"] .theme-toggle .icon-moon { display: block; }

@media (max-width: 480px) {
  .theme-toggle { top: 0.75rem; right: 0.75rem; }
  .home-link { top: 0.75rem; left: 0.75rem; }
}

@media (max-width: 560px) {
  .intro { flex-direction: column; text-align: center; }
  .tagline { margin-left: auto; margin-right: auto; }
  .contacts { justify-content: center; }
}

/* Geometric background texture (subtle isometric line pattern). Decorative only. */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image: url("data:image/svg+xml;charset=utf8,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%20512%20512%22%20width%3D%22512%22%20height%3D%22512%22%20preserveAspectRatio%3D%22none%22%3E%20%3Cstyle%20type%3D%22text%2Fcss%22%3E%20path%20%7B%20fill%3A%20none%3B%20stroke%3A%20rgba(255,255,255,0.027)%3B%20stroke-width%3A%202.01px%3B%20stroke-linecap%3A%20round%3B%20stroke-linejoin%3A%20round%3B%20%7D%20%3C%2Fstyle%3E%20%3Cpath%20vector-effect%3D%22non-scaling-stroke%22%20d%3D%22M424%2C331.8c0%2C12.5-6.7%2C24.1-17.5%2C30.3l-132%2C76.2c-10.8%2C6.3-24.2%2C6.3-35%2C0l-132-76.2%20C96.7%2C355.8%2C90%2C344.3%2C90%2C331.8V179.2c0-12.5%2C6.7-24.1%2C17.5-30.3l132-76.2c10.8-6.3%2C24.2-6.3%2C35%2C0l132%2C76.2%20c10.8%2C6.3%2C17.5%2C17.8%2C17.5%2C30.3V331.8z%20M238.5%2C73l-256%2C147.6%20M273.5%2C439l252.1-145.4%20M256%2C634.7V378.3c0-12.5%2C6.7-24.1%2C17.5-30.3%20l252.1-145.4%20M256-122.7v256.4c0%2C12.5-6.7%2C24.1-17.5%2C30.3l-256%2C147.6%22%2F%3E%3C%2Fsvg%3E");
  background-size: 395px;
  background-repeat: repeat;
}
:root[data-theme="light"] body::before {
  background-image: url("data:image/svg+xml;charset=utf8,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%20512%20512%22%20width%3D%22512%22%20height%3D%22512%22%20preserveAspectRatio%3D%22none%22%3E%20%3Cstyle%20type%3D%22text%2Fcss%22%3E%20path%20%7B%20fill%3A%20none%3B%20stroke%3A%20rgba(0,0,0,0.05)%3B%20stroke-width%3A%202.01px%3B%20stroke-linecap%3A%20round%3B%20stroke-linejoin%3A%20round%3B%20%7D%20%3C%2Fstyle%3E%20%3Cpath%20vector-effect%3D%22non-scaling-stroke%22%20d%3D%22M424%2C331.8c0%2C12.5-6.7%2C24.1-17.5%2C30.3l-132%2C76.2c-10.8%2C6.3-24.2%2C6.3-35%2C0l-132-76.2%20C96.7%2C355.8%2C90%2C344.3%2C90%2C331.8V179.2c0-12.5%2C6.7-24.1%2C17.5-30.3l132-76.2c10.8-6.3%2C24.2-6.3%2C35%2C0l132%2C76.2%20c10.8%2C6.3%2C17.5%2C17.8%2C17.5%2C30.3V331.8z%20M238.5%2C73l-256%2C147.6%20M273.5%2C439l252.1-145.4%20M256%2C634.7V378.3c0-12.5%2C6.7-24.1%2C17.5-30.3%20l252.1-145.4%20M256-122.7v256.4c0%2C12.5-6.7%2C24.1-17.5%2C30.3l-256%2C147.6%22%2F%3E%3C%2Fsvg%3E");
}