:root {
  --bg:       #0d0d0e;
  --surface:  #141416;
  --border:   #242428;
  --fg:       #ededed;
  --fg-dim:   #888;
  --accent:   #d63a52;
  --mono:     'JetBrains Mono', monospace;
  --sans:     'Inter', sans-serif;
  --maxw:     1060px;
}

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

html { scroll-behavior: smooth; color-scheme: dark; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--sans);
  font-size: 1rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
::selection { background: var(--accent); color: #fff; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}

/* ── NAV ─────────────────────────────── */
header {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(13,13,14,.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}

.logo {
  font-family: var(--mono);
  font-size: .95rem;
  font-weight: 700;
  letter-spacing: .02em;
}
.logo .dot { color: var(--accent); }

.nav-links {
  display: flex;
  gap: 28px;
  font-size: .88rem;
  color: var(--fg-dim);
}
.nav-links a:hover { color: var(--fg); }

.burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
}
.burger span { width: 20px; height: 2px; background: var(--fg); display: block; }

/* ── HERO ────────────────────────────── */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: 80px;
  padding-bottom: 60px;
}

.eyebrow {
  font-family: var(--mono);
  font-size: .78rem;
  color: var(--fg-dim);
  letter-spacing: .06em;
  margin-bottom: 20px;
}

.terminal {
  font-family: var(--mono);
  font-size: .85rem;
  color: var(--fg-dim);
  margin-bottom: 32px;
  min-height: 2.4em;
}
.terminal .prompt { color: var(--accent); }
.terminal .out { color: var(--fg); }

.cursor {
  display: inline-block;
  width: 7px;
  height: .9em;
  background: var(--accent);
  margin-left: 2px;
  vertical-align: -.1em;
  animation: blink 1s steps(1) infinite;
}
@keyframes blink { 50% { opacity: 0; } }

h1 {
  font-family: var(--sans);
  font-weight: 700;
  font-size: clamp(2rem, 5vw, 3.8rem);
  line-height: 1.1;
  letter-spacing: -.02em;
  max-width: 18ch;
  margin-bottom: 20px;
}
h1 .accent { color: var(--accent); }

.lede {
  font-size: 1.05rem;
  color: var(--fg-dim);
  max-width: 54ch;
  margin-bottom: 36px;
  line-height: 1.7;
}

.cta-row { display: flex; gap: 14px; flex-wrap: wrap; }

.btn {
  font-family: var(--sans);
  font-weight: 600;
  font-size: .9rem;
  padding: 12px 22px;
  border-radius: 6px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: opacity .15s, transform .15s;
  cursor: pointer;
}
.btn-primary { background: var(--accent); color: #fff; border: none; }
.btn-primary:hover { opacity: .88; transform: translateY(-1px); }
.btn-ghost { background: none; border: 1px solid var(--border); color: var(--fg); }
.btn-ghost:hover { border-color: #555; transform: translateY(-1px); }

/* ── SECTIONS ────────────────────────── */
section { padding: 100px 0; border-top: 1px solid var(--border); }

.label {
  font-family: var(--mono);
  font-size: .76rem;
  color: var(--accent);
  letter-spacing: .1em;
  text-transform: uppercase;
  margin-bottom: 10px;
}

h2 {
  font-weight: 700;
  font-size: clamp(1.6rem, 3vw, 2.3rem);
  letter-spacing: -.02em;
  margin-bottom: 44px;
  max-width: 22ch;
}

/* ── ABOUT ───────────────────────────── */
.about-grid {
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 60px;
  align-items: start;
}

.about-text p {
  color: var(--fg-dim);
  margin-bottom: 16px;
  max-width: 54ch;
}
.about-text p strong { color: var(--fg); font-weight: 600; }

.sysinfo {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 24px;
  font-family: var(--mono);
  font-size: .82rem;
}
.sysinfo-head {
  color: var(--accent);
  font-weight: 700;
  margin-bottom: 16px;
}
.sysinfo dl { display: grid; grid-template-columns: auto 1fr; gap: 8px 20px; }
.sysinfo dt { color: var(--fg-dim); }
.sysinfo dd { color: var(--fg); font-weight: 500; }

/* ── SKILLS ──────────────────────────── */
.skill-groups {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.skill-group {
  border-top: 2px solid var(--accent);
  padding-top: 16px;
}

.skill-group h3 {
  font-family: var(--mono);
  font-size: .8rem;
  color: var(--fg-dim);
  text-transform: uppercase;
  letter-spacing: .05em;
  margin-bottom: 14px;
}

.tag-list { display: flex; flex-wrap: wrap; gap: 8px; }
.tag {
  font-family: var(--mono);
  font-size: .76rem;
  color: var(--fg);
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 5px 10px;
  border-radius: 4px;
}

/* ── PROJECTS ────────────────────────── */
.project-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.project-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 26px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: border-color .15s;
}
.project-card:hover { border-color: #444; }

.file-badge {
  font-family: var(--mono);
  font-size: .7rem;
  color: var(--accent);
  margin-bottom: 2px;
}

.project-card h3 {
  font-size: 1.1rem;
  font-weight: 600;
}

.project-card p {
  font-size: .92rem;
  color: var(--fg-dim);
  flex: 1;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.project-tags span {
  font-family: var(--mono);
  font-size: .7rem;
  color: var(--fg-dim);
}
.project-tags span::after { content: " ·"; }
.project-tags span:last-child::after { content: ""; }

.project-link {
  font-size: .85rem;
  font-weight: 500;
  color: var(--fg-dim);
  transition: color .15s;
  margin-top: 4px;
}
.project-card:hover .project-link { color: var(--accent); }

/* ── CONTACT ─────────────────────────── */
.contact-grid {
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  gap: 60px;
}

.contact-note p { color: var(--fg-dim); margin-bottom: 14px; max-width: 42ch; }

.contact-links {
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-family: var(--mono);
  font-size: .84rem;
  margin-top: 24px;
  color: var(--fg-dim);
}
.contact-links a:hover { color: var(--fg); }

form { display: flex; flex-direction: column; gap: 18px; }

.form-group { display: flex; flex-direction: column; gap: 6px; }

label {
  font-family: var(--mono);
  font-size: .75rem;
  color: var(--fg-dim);
}

input, textarea {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--fg);
  font-family: var(--sans);
  font-size: .92rem;
  padding: 11px 14px;
  border-radius: 5px;
  width: 100%;
  transition: border-color .15s;
}
input:focus, textarea:focus { outline: none; border-color: #555; }
textarea { resize: vertical; min-height: 120px; }

button[type="submit"] {
  font-family: var(--sans);
  font-weight: 600;
  font-size: .9rem;
  background: var(--accent);
  color: #fff;
  border: none;
  padding: 12px 22px;
  border-radius: 6px;
  cursor: pointer;
  width: fit-content;
  transition: opacity .15s;
}
button[type="submit"]:hover { opacity: .85; }

.form-status {
  font-family: var(--mono);
  font-size: .78rem;
  color: var(--fg-dim);
  min-height: 1.2em;
}

/* ── TOAST ───────────────────────────── */
.toast {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--fg);
  padding: 10px 18px;
  border-radius: 6px;
  font-family: var(--mono);
  font-size: .8rem;
  z-index: 1000;
  transform: translateY(80px);
  opacity: 0;
  transition: transform .2s ease, opacity .2s ease;
}
.toast.show { transform: translateY(0); opacity: 1; }

/* ── FOOTER ──────────────────────────── */
footer {
  border-top: 1px solid var(--border);
  padding: 28px 0;
  font-family: var(--mono);
  font-size: .76rem;
  color: var(--fg-dim);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
}

/* ── RESPONSIVE ──────────────────────── */
@media (max-width: 800px) {
  .about-grid, .contact-grid { grid-template-columns: 1fr; gap: 36px; }
  .skill-groups { grid-template-columns: 1fr; }
  .project-grid { grid-template-columns: 1fr; }
  .nav-links {
    position: fixed; top: 60px; left: 0; right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    padding: 18px 24px;
    gap: 16px;
    transform: translateY(-130%);
    transition: transform .2s ease;
  }
  .nav-links.open { transform: translateY(0); }
  .burger { display: flex; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .cursor { animation: none; }
  * { transition: none !important; }
}