/* ────────────────────────────────────────────────────────
   Tapiwa Makandigona — portfolio
   Light default. Warm stone palette. DM Sans.
   Palette inspired by: Linear docs light, Vercel light, Stripe
   ──────────────────────────────────────────────────────── */

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

/* ── Light theme (default) ──────────────────────────────── */
:root,
[data-theme="light"] {
  --bg:        #fafaf9;
  --surface:   #f4f4f2;
  --border:    #e5e5e3;
  --ink:       #1a1917;
  --ink-2:     #57534e;
  --ink-3:     #a8a29e;
  --accent:    #0f62fe;        /* IBM blue — clean, dev-legible */
  --link:      #0f62fe;
  --link-dim:  #78716c;
  --tag-bg:    #f4f4f2;
  --tag-border:#e5e5e3;
  --mono:      'DM Mono', monospace;
  --sans:      'DM Sans', system-ui, sans-serif;
  --max:       680px;
  --gap:       clamp(40px, 6vw, 80px);
  --theme-icon: "☀";
}

/* ── Dark theme ─────────────────────────────────────────── */
[data-theme="dark"] {
  --bg:        #0c0c0b;
  --surface:   #141413;
  --border:    #242422;
  --ink:       #e8e6e1;
  --ink-2:     #948f88;
  --ink-3:     #4a4743;
  --accent:    #60a5fa;        /* soft blue for dark */
  --link:      #d6d3ce;
  --link-dim:  #6b7280;
  --tag-bg:    #141413;
  --tag-border:#242422;
  --theme-icon: "☾";
}

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

body {
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.65;
  color: var(--ink-2);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  padding: 0 clamp(20px, 5vw, 40px);
  opacity: 0;
  transition: opacity .25s ease, background .2s ease, color .2s ease;
}
body.ready { opacity: 1; }

/* ── Selection ──────────────────────────────────────────── */
[data-theme="light"] ::selection { background: #dbeafe; color: #1e3a5f; }
[data-theme="dark"]  ::selection { background: #1e3a5f; color: #dbeafe; }

/* ── Links ──────────────────────────────────────────────── */
a {
  color: var(--link-dim);
  text-decoration: none;
  border-bottom: 1px solid var(--border);
  transition: color .15s, border-color .15s;
}
a:hover { color: var(--ink); border-color: var(--ink-3); }
a:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 2px; }

/* ── Header ─────────────────────────────────────────────── */
.site-header {
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(24px, 4vw, 40px) 0 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.header-name {
  font-size: 13px;
  font-weight: 500;
  letter-spacing: .01em;
  color: var(--ink);
}

.site-header nav {
  display: flex;
  align-items: center;
  gap: 20px;
}

.site-header nav a {
  font-size: 13px;
  color: var(--ink-3);
  border-bottom: none;
  transition: color .15s;
}
.site-header nav a:hover { color: var(--ink); }

/* ── Theme toggle ───────────────────────────────────────── */
.theme-toggle {
  background: none;
  border: 1px solid var(--border);
  color: var(--ink-3);
  cursor: pointer;
  width: 30px;
  height: 30px;
  border-radius: 6px;
  font-size: 13px;
  display: grid;
  place-items: center;
  transition: color .15s, border-color .15s, background .15s;
  line-height: 1;
}
.theme-toggle:hover { color: var(--ink); border-color: var(--ink-3); background: var(--surface); }

.theme-icon::before { content: var(--theme-icon); }

/* ── Main ───────────────────────────────────────────────── */
main { max-width: var(--max); margin: 0 auto; }

/* ── Hero ───────────────────────────────────────────────── */
.hero {
  padding: var(--gap) 0;
  border-bottom: 1px solid var(--border);
}

.hero-location {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-3);
  letter-spacing: .04em;
  margin-bottom: 20px;
}

.hero-title {
  font-size: clamp(48px, 10vw, 88px);
  font-weight: 300;
  line-height: 1.0;
  letter-spacing: -.03em;
  color: var(--ink);
  margin-bottom: 28px;
}

.hero-bio {
  font-size: 16px;
  line-height: 1.7;
  color: var(--ink-2);
  max-width: 480px;
}

/* ── Sections ───────────────────────────────────────────── */
.section {
  padding: var(--gap) 0;
  border-bottom: 1px solid var(--border);
}

.section-label {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: clamp(24px, 4vw, 40px);
}

/* ── Work list ──────────────────────────────────────────── */
.work-list { list-style: none; }

.work-item {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 0 20px;
  padding: 18px 8px;
  border-top: 1px solid var(--border);
  border-radius: 6px;
  margin: 0 -8px;
  transition: background .15s;
}
.work-item:last-child { border-bottom: 1px solid var(--border); }
.work-item:hover { background: var(--surface); }

.work-meta {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-top: 2px;
}

.work-num {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-3);
  letter-spacing: .04em;
}

.work-year {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--ink-3);
}

.work-body { display: flex; flex-direction: column; gap: 8px; }

.work-top {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.work-title {
  font-size: 15px;
  font-weight: 500;
  color: var(--ink);
  letter-spacing: -.01em;
}

.work-links { display: flex; gap: 12px; flex-shrink: 0; }

.work-links a {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-3);
  letter-spacing: .03em;
  border-bottom: none;
  transition: color .15s;
}
.work-links a:hover { color: var(--accent); }

.work-desc {
  font-size: 14px;
  line-height: 1.65;
  color: var(--ink-2);
}

.work-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 4px;
}

.work-tags span {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-3);
  background: var(--tag-bg);
  border: 1px solid var(--tag-border);
  padding: 2px 8px;
  border-radius: 4px;
  letter-spacing: .02em;
}

.all-repos-link {
  display: inline-block;
  margin-top: 24px;
  font-size: 13px;
  color: var(--ink-3);
  border-bottom: 1px solid var(--border);
}
.all-repos-link:hover { color: var(--ink); }

/* ── Recognition ────────────────────────────────────────── */
.award-list { list-style: none; display: flex; flex-direction: column; gap: 0; }

.award-item {
  display: flex;
  gap: 16px;
  padding: 18px 8px;
  border-top: 1px solid var(--border);
  border-radius: 6px;
  margin: 0 -8px;
  transition: background .15s;
  align-items: flex-start;
}
.award-item:last-child { border-bottom: 1px solid var(--border); }
.award-item:hover { background: var(--surface); }

.award-badge {
  font-size: 20px;
  width: 36px;
  flex-shrink: 0;
  padding-top: 2px;
  text-align: center;
}

.award-body { display: flex; flex-direction: column; gap: 6px; }

.award-top {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.award-title {
  font-size: 15px;
  font-weight: 500;
  color: var(--ink);
  letter-spacing: -.01em;
}

.award-org {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-3);
  letter-spacing: .02em;
}

.award-desc {
  font-size: 14px;
  line-height: 1.65;
  color: var(--ink-2);
}

/* ── About ──────────────────────────────────────────────── */
.about-text {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 32px;
}

.about-text p { font-size: 15px; line-height: 1.75; color: var(--ink-2); }
.about-text strong { color: var(--ink); font-weight: 500; }

.stack-row { display: flex; flex-wrap: wrap; gap: 8px; }

.stack-row span {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-3);
  border: 1px solid var(--tag-border);
  padding: 4px 10px;
  border-radius: 4px;
  letter-spacing: .02em;
}

/* ── Footer ─────────────────────────────────────────────── */
.site-footer {
  max-width: var(--max);
  margin: 0 auto;
  padding: 32px 0 40px;
  display: flex;
  flex-wrap: wrap;
  gap: 16px 32px;
  align-items: center;
}

.site-footer span { font-size: 12px; color: var(--ink-3); }

.site-footer a {
  font-size: 12px;
  color: var(--ink-3);
  border-bottom-color: transparent;
}
.site-footer a:hover { color: var(--ink); }

/* ── Back to top ─────────────────────────────────────────── */
.back-top {
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--ink-3);
  font-size: 14px;
  cursor: pointer;
  display: grid;
  place-items: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity .2s, color .15s, border-color .15s, background .2s;
  box-shadow: 0 2px 8px rgba(0,0,0,.06);
}
.back-top.visible { opacity: 1; pointer-events: auto; }
.back-top:hover { color: var(--ink); border-color: var(--ink-3); }

/* ── Responsive ─────────────────────────────────────────── */
@media (max-width: 480px) {
  .work-meta { display: none; }
  .work-item { grid-template-columns: 1fr; }
  .hero-title { letter-spacing: -.025em; }
}