/* ============================================
   Variables
   ============================================ */
:root {
  --bg:           #07090f;
  --bg-header:    #050710;
  --text:         #7a9db5;
  --text-bright:  #b8d4e2;
  --text-dim:     #243545;
  --accent:       #3ec8e0;
  --accent-faint: rgba(62, 200, 224, 0.07);
  --accent-glow:  rgba(62, 200, 224, 0.25);
  --border:       #0d1e2c;
  --border-mid:   #152535;
}

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

h1, h2, h3, h4, h5, h6 {
  font-size: inherit;
  font-weight: inherit;
}

ul, ol {
  list-style: none;
}

/* ============================================
   Base
   ============================================ */
html {
  font-size: 16px;
}

body {
  background-color: var(--bg);
  background-image:
    radial-gradient(ellipse at 0% 0%, rgba(62, 200, 224, 0.05) 0%, transparent 55%),
    radial-gradient(ellipse at 100% 100%, rgba(62, 120, 200, 0.04) 0%, transparent 50%);
  color: var(--text);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Courier New", monospace;
  font-size: 0.875rem;
  line-height: 1.75;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ============================================
   Layout
   ============================================ */
.wrapper {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.container {
  max-width: 640px;
  margin: 0 auto;
  padding: 0 2rem;
  width: 100%;
}

/* ============================================
   Header
   ============================================ */
.site-header {
  padding: 3.5rem 0 3rem;
  border-bottom: 1px solid var(--border);
}

.site-name {
  display: block;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-bright);
  letter-spacing: -0.5px;
  text-decoration: none;
  margin-bottom: 0.5rem;
  line-height: 1.2;
}

.site-name:hover {
  text-decoration: none;
  color: var(--text-bright);
}

/* Blinking cursor */
.cursor::after {
  content: "_";
  color: var(--accent);
  font-weight: 400;
  animation: blink 1.1s step-end infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0; }
}

.site-tagline {
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 3px;
  color: var(--accent);
  opacity: 0.7;
}

/* ============================================
   Intro
   ============================================ */
.intro {
  padding: 2.75rem 0;
  border-bottom: 1px solid var(--border);
}

.intro p {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--text-bright);
  max-width: 520px;
}

/* ============================================
   Contact section
   ============================================ */
.contact {
  flex: 1;
  padding: 3rem 0 5rem;
}

/* "// contact & tips" label */
.section-label {
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2.5px;
  color: var(--text-dim);
  margin-bottom: 2.25rem;
}

/* Individual contact blocks */
.block {
  border-left: 2px solid var(--border-mid);
  padding: 0.85rem 0 0.85rem 1.25rem;
  margin-bottom: 0.15rem;
  transition: border-color 200ms ease, background-color 200ms ease;
}

.block:hover {
  border-left-color: var(--accent);
  background-color: var(--accent-faint);
}

.block h3 {
  font-size: 0.62rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2.5px;
  color: var(--accent);
  opacity: 0.6;
  margin-bottom: 0.3rem;
  transition: opacity 200ms ease;
}

.block:hover h3 {
  opacity: 1;
}

.block p {
  color: var(--text);
  margin-bottom: 0.25rem;
}

.block p:last-child {
  margin-bottom: 0;
}

.block ul {
  margin-top: 0.2rem;
}

.block ul li {
  color: var(--text);
  padding-left: 1em;
  position: relative;
  margin-bottom: 0.1rem;
}

.block ul li::before {
  content: "›";
  position: absolute;
  left: 0;
  color: var(--accent);
  opacity: 0.5;
}

/* ============================================
   Links
   ============================================ */
a {
  color: var(--accent);
  text-decoration: none;
  transition: opacity 150ms ease;
}

a:hover {
  opacity: 0.75;
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ============================================
   Strong / emphasis
   ============================================ */
strong {
  color: var(--text-bright);
  font-weight: 600;
}

em {
  font-style: italic;
  color: var(--text);
}

/* ============================================
   Footer
   ============================================ */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 1.5rem 0;
  margin-top: auto;
}

.site-footer span {
  font-size: 0.65rem;
  color: var(--text-dim);
  letter-spacing: 0.5px;
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 600px) {
  .site-header {
    padding: 2.5rem 0 2.25rem;
  }

  .site-name {
    font-size: 1.25rem;
  }

  .intro {
    padding: 2rem 0;
  }

  .intro p {
    font-size: 0.925rem;
  }

  .contact {
    padding: 2.25rem 0 4rem;
  }

  .container {
    padding: 0 1.25rem;
  }
}