/* =========================================================
   stefanosello.github.io — stylesheet
   ========================================================= */

/* ── Colour tokens ───────────────────────────────────────── */
:root {
  --bg-primary:    #0d1117;
  --bg-surface:    #161b22;
  --text-primary:  #e6edf3;
  --text-muted:    #7d8590;
  --accent-green:  #7ee787;
  --comment-color: #6e7681;
  --border:        #30363d;
  --font:          'JetBrains Mono', monospace;
}

/* Light mode — system preference */
@media (prefers-color-scheme: light) {
  :root {
    --bg-primary:    #ffffff;
    --bg-surface:    #f6f8fa;
    --text-primary:  #1f2328;
    --text-muted:    #57606a;
    --accent-green:  #1a7f37;
    --comment-color: #6e7781;
    --border:        #d0d7de;
  }
}

/* Manual overrides (set via JS / localStorage) */
[data-theme="dark"] {
  --bg-primary:    #0d1117;
  --bg-surface:    #161b22;
  --text-primary:  #e6edf3;
  --text-muted:    #7d8590;
  --accent-green:  #7ee787;
  --comment-color: #6e7681;
  --border:        #30363d;
}

[data-theme="light"] {
  --bg-primary:    #ffffff;
  --bg-surface:    #f6f8fa;
  --text-primary:  #1f2328;
  --text-muted:    #57606a;
  --accent-green:  #1a7f37;
  --comment-color: #6e7781;
  --border:        #d0d7de;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  font-size: 14px;
  line-height: 1.7;
  background: var(--bg-primary);
  color: var(--text-primary);
  padding: 0 1rem;
  transition: background-color 0.2s ease, color 0.2s ease;
}

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

/* ── Layout ─────────────────────────────────────────────── */
.container {
  max-width: 820px;
  margin: 0 auto;
  padding: 3rem 0 4rem;
}

section {
  margin-bottom: 3rem;
}

/* ── Section labels (code-comment style) ─────────────────── */
.section-label {
  font-style: italic;
  color: var(--comment-color);
  font-size: 13px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.4rem;
  margin-bottom: 1.5rem;
}

/* ── Theme toggle ────────────────────────────────────────── */
.theme-toggle {
  position: absolute;
  top: 0;
  right: 0;
  background: none;
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-family: var(--font);
  font-size: 11px;
  padding: 0.25rem 0.6rem;
  border-radius: 3px;
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s;
}
.theme-toggle:hover {
  border-color: var(--accent-green);
  color: var(--accent-green);
}

/* ── Header ─────────────────────────────────────────────── */
header {
  position: relative;
  margin-bottom: 3rem;
  /* smooth theme transition on key surfaces */
  transition: background-color 0.2s ease;
}

.prompt {
  color: var(--accent-green);
  font-size: clamp(22px, 5vw, 32px);
  font-weight: 700;
  letter-spacing: -0.5px;
  margin-bottom: 0.25rem;
}

.prompt-glyph {
  opacity: 0.7;
}

#typed-name {
  min-width: 1ch;
}

.subtitle {
  color: var(--text-muted);
  font-size: 13px;
  margin-bottom: 1.25rem;
}

.contact-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1.5rem;
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
}

.contact-row a {
  color: var(--text-muted);
}
.contact-row a:hover {
  color: var(--accent-green);
  text-decoration: none;
}

.btn-cv {
  display: inline-block;
  border: 1px solid var(--border);
  color: var(--accent-green);
  padding: 0.35rem 0.9rem;
  font-family: var(--font);
  font-size: 12px;
  border-radius: 3px;
  transition: border-color 0.15s, background 0.15s;
}
.btn-cv:hover {
  border-color: var(--accent-green);
  background: rgba(126, 231, 135, 0.08);
  text-decoration: none;
}

/* ── Summary ─────────────────────────────────────────────── */
#summary p {
  color: var(--text-primary);
  max-width: 72ch;
}

/* ── Skills / Languages grid ─────────────────────────────── */
.kv-grid {
  display: grid;
  gap: 0.55rem 0;
}

.kv-row {
  display: grid;
  grid-template-columns: 120px 16px 1fr;
  align-items: baseline;
  gap: 0 0.25rem;
}

.kv-key {
  color: var(--accent-green);
  font-weight: 600;
}

.kv-sep {
  color: var(--text-muted);
  text-align: center;
}

.kv-val {
  color: var(--text-primary);
}

/* ── Timeline ────────────────────────────────────────────── */
.timeline {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.timeline-item {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 0 1.5rem;
}

.tl-meta {
  padding-top: 1px;
}

.tl-date {
  color: var(--text-muted);
  font-size: 11px;
  white-space: nowrap;
}

.tl-company {
  color: var(--text-muted);
  font-size: 11px;
  font-weight: 600;
  margin-top: 0.15rem;
}

.tl-company a {
  color: var(--text-muted);
}
.tl-company a:hover {
  color: var(--accent-green);
  text-decoration: none;
}

.tl-role {
  color: var(--accent-green);
  font-weight: 700;
  font-size: 13px;
  margin-bottom: 0.5rem;
}

.tl-bullets {
  list-style: none;
  margin-bottom: 0.75rem;
}

.tl-bullets li {
  color: var(--text-primary);
  font-size: 13px;
  padding-left: 1.1rem;
  position: relative;
  margin-bottom: 0.3rem;
}

.tl-bullets li::before {
  content: '▸';
  color: var(--accent-green);
  position: absolute;
  left: 0;
}

.tl-desc {
  color: var(--text-primary);
  font-size: 13px;
  margin-bottom: 0.75rem;
}

.stack-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.tag {
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 11px;
  padding: 0.1rem 0.45rem;
  border-radius: 3px;
  font-family: var(--font);
  transition: border-color 0.15s, color 0.15s;
}

.tag:hover {
  border-color: var(--accent-green);
  color: var(--accent-green);
}

/* ── Project cards ───────────────────────────────────────── */
.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1rem;
}

.project-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1.25rem 1.5rem;
  transition: border-color 0.15s, background-color 0.2s ease;
}

.project-card:hover {
  border-color: var(--accent-green);
}

.project-title {
  color: var(--accent-green);
  font-weight: 700;
  font-size: 13px;
  margin-bottom: 0.15rem;
}

.project-lang {
  color: var(--text-muted);
  font-size: 11px;
  margin-bottom: 0.6rem;
}

.project-desc {
  color: var(--text-primary);
  font-size: 12px;
  line-height: 1.6;
}

.project-link {
  display: inline-block;
  margin-top: 0.75rem;
  font-size: 11px;
  color: var(--text-muted);
}
.project-link:hover {
  color: var(--accent-green);
  text-decoration: none;
}

/* ── Footer ──────────────────────────────────────────────── */
footer {
  border-top: 1px solid var(--border);
  padding-top: 1.5rem;
  color: var(--text-muted);
  font-size: 12px;
}

.cursor {
  color: var(--accent-green);
  animation: blink 1s step-end infinite;
}

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

@media (prefers-reduced-motion: reduce) {
  .cursor { animation-play-state: paused; }
}

/* ── Responsive ──────────────────────────────────────────── */
@media (max-width: 640px) {
  .timeline-item {
    grid-template-columns: 1fr;
    gap: 0.25rem;
  }

  .tl-meta {
    display: flex;
    gap: 0.5rem;
    align-items: baseline;
    flex-wrap: wrap;
    margin-bottom: 0.35rem;
  }

  .tl-date::after {
    content: '·';
    margin-left: 0.5rem;
    color: var(--border);
  }

  .project-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 400px) {
  body { font-size: 13px; }
  .prompt { font-size: 20px; }
  .kv-row { grid-template-columns: 100px 14px 1fr; }
}