:root {
  --bg: #000000;
  --bg-2: #0a0a0e;
  --ink: #e8e6f0;
  --ink-soft: #a8a4b8;
  --ink-faint: #6a657a;
  --line: #1f1d28;
  --accent: #b6a8e8;
  --accent-2: #8b7ed8;
  --good: #4ade80;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { background: var(--bg); color: var(--ink); }
body {
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 15px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  overflow-x: hidden;
}
body.no-scroll { height: 100vh; overflow: hidden; }
::selection { background: var(--accent); color: var(--bg); }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; cursor: pointer; background: none; border: none; }

/* ===== Top nav ===== */
.topnav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 30;
  padding: 18px 32px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  background: linear-gradient(180deg, rgba(0,0,0,0.85), rgba(0,0,0,0.55) 70%, transparent);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  border-bottom: 1px solid color-mix(in srgb, var(--accent) 18%, transparent);
}
.brand {
  font-family: 'JetBrains Mono', monospace;
  font-weight: 600;
  font-size: 18px;
  color: var(--accent);
}
.nav-tabs { display: flex; gap: 28px; justify-self: center; }
.nav-tab {
  font-family: 'JetBrains Mono', monospace;
  font-size: 14px;
  color: var(--ink-soft);
  padding: 6px 4px;
  transition: color 0.18s;
  position: relative;
}
.nav-tab::after {
  content: '';
  position: absolute;
  left: 50%; bottom: 0;
  width: 0; height: 1.5px;
  background: var(--accent);
  transition: all 0.22s;
  transform: translateX(-50%);
}
.nav-tab:hover, .nav-tab.on { color: var(--accent); }
.nav-tab:hover::after, .nav-tab.on::after { width: 100%; }
.resume-btn {
  justify-self: end;
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  color: var(--ink);
  border: 1px solid var(--line);
  padding: 8px 14px;
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.02);
  transition: border-color 0.18s, background 0.18s;
}
.resume-btn:hover { border-color: var(--accent); background: color-mix(in srgb, var(--accent) 10%, transparent); }
.resume-btn svg { width: 14px; height: 14px; }
@media (max-width: 800px) {
  .topnav {
    grid-template-columns: auto 1fr;
    grid-template-rows: auto auto;
    column-gap: 12px;
    row-gap: 6px;
    padding: 10px 16px 8px;
  }
  .brand { grid-column: 1; grid-row: 1; justify-self: start; font-size: 16px; }
  .resume-btn { grid-column: 2; grid-row: 1; justify-self: end; padding: 6px 10px; font-size: 12px; }
  .nav-tabs {
    grid-column: 1 / -1;
    grid-row: 2;
    justify-self: center;
    gap: 22px;
    flex-wrap: wrap;
    justify-content: center;
  }
  .nav-tab { font-size: 13px; padding: 4px 2px; }
  .page { padding-top: 110px; }
}

/* ===== Stars ===== */
#stars { position: fixed; inset: 0; z-index: 0; pointer-events: none; }
.vignette {
  position: fixed; inset: 0; pointer-events: none; z-index: 1;
  background: radial-gradient(ellipse at center, color-mix(in srgb, var(--accent) 8%, transparent) 0%, transparent 55%);
}

/* ===== Landing (no-scroll) ===== */
.landing {
  position: relative;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 80px 24px 40px;
  z-index: 2;
}
.landing-inner { position: relative; z-index: 2; max-width: 760px; }
.landing h1 {
  font-family: 'Inter', sans-serif;
  font-weight: 800;
  font-size: clamp(40px, 6.5vw, 84px);
  letter-spacing: -0.035em;
  line-height: 1;
  text-shadow:
    0 0 24px color-mix(in srgb, var(--accent) 35%, transparent),
    0 0 64px color-mix(in srgb, var(--accent) 18%, transparent);
}
.landing .subline {
  font-family: 'JetBrains Mono', monospace;
  font-size: clamp(14px, 1.6vw, 18px);
  color: var(--accent);
  margin-top: 14px;
}
.landing .about {
  margin: 28px auto 0;
  max-width: 580px;
  color: var(--ink-soft);
  font-size: clamp(14px, 1.3vw, 16px);
  line-height: 1.7;
  text-wrap: pretty;
}
.landing .about strong { color: var(--ink); font-weight: 500; }
.landing .pillows {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: center;
  margin-top: 28px;
}
.landing .pill {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  padding: 4px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink-soft);
  letter-spacing: 0.5px;
}
.landing .pulse-row {
  margin-top: 22px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--ink-faint);
  letter-spacing: 1.5px;
  text-transform: uppercase;
}
.pulse {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--good); box-shadow: 0 0 6px var(--good);
  animation: blink 1.6s infinite;
}
@keyframes blink { 50% { opacity: 0.35; } }
.landing .quick-nav {
  display: flex; gap: 10px; justify-content: center;
  margin-top: 32px;
  flex-wrap: wrap;
}
.qbtn {
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  padding: 10px 18px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink);
  transition: border-color 0.18s, background 0.18s, color 0.18s;
  display: inline-flex; align-items: center; gap: 8px;
}
.qbtn:hover { border-color: var(--accent); color: var(--accent); background: color-mix(in srgb, var(--accent) 8%, transparent); }
.qbtn.primary { background: var(--accent); color: #0a0512; border-color: var(--accent); }
.qbtn.primary:hover { transform: translateY(-1px); box-shadow: 0 8px 24px -8px color-mix(in srgb, var(--accent) 60%, transparent); }

/* ===== Page (scrolling sub-pages) ===== */
.page {
  position: relative;
  z-index: 2;
  padding: 140px 24px 80px;
}
.container { max-width: 1100px; margin: 0 auto; }
.sec-tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  color: var(--accent);
  margin-bottom: 14px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.sec-tag::before { content: ''; width: 24px; height: 1px; background: var(--accent); }
.sec-title {
  font-family: 'Inter', sans-serif;
  font-weight: 700;
  font-size: clamp(40px, 6vw, 64px);
  letter-spacing: -0.03em;
  line-height: 1;
  margin-bottom: 14px;
}
.sec-title em { font-style: italic; color: var(--accent); }
.sec-blurb { color: var(--ink-soft); font-size: 16px; max-width: 600px; margin-bottom: 48px; line-height: 1.6; }

/* ===== Project cards ===== */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 16px;
}
.card {
  background: rgba(255,255,255,0.02);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 24px;
  transition: border-color 0.2s, transform 0.2s, background 0.2s;
  display: flex;
  flex-direction: column;
  gap: 12px;
  cursor: pointer;
  text-decoration: none;
  color: inherit;
}
.card:hover {
  transform: translateY(-3px);
  border-color: color-mix(in srgb, var(--accent) 50%, var(--line));
  background: rgba(182, 168, 232, 0.04);
}
.card .meta {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--ink-faint);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.card h3 {
  font-family: 'Inter', sans-serif;
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.15;
}
.card h3 em { font-style: italic; color: var(--accent); }
.card p { color: var(--ink-soft); font-size: 14px; line-height: 1.55; }
.card .tags { display: flex; flex-wrap: wrap; gap: 5px; margin-top: auto; padding-top: 10px; }
.pill {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  padding: 3px 9px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink-soft);
  letter-spacing: 0.5px;
}
.chip { padding: 3px 8px; border-radius: 4px; font-size: 10px; font-family: 'JetBrains Mono', monospace; letter-spacing: 1px; background: var(--good); color: #052; }
.chip.stealth { background: #fbbf24; color: #422; }
.chip.wip { background: #2a2630; color: var(--ink-soft); }

/* ===== Contact ===== */
.contact-card {
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 56px 44px;
  background: linear-gradient(135deg, rgba(182,168,232,0.06), rgba(0,0,0,0));
  text-align: center;
  position: relative;
  overflow: hidden;
}
.contact-card::before {
  content: '';
  position: absolute;
  top: -100px; left: 50%;
  width: 400px; height: 200px;
  background: radial-gradient(ellipse, color-mix(in srgb, var(--accent) 25%, transparent), transparent 70%);
  transform: translateX(-50%);
  pointer-events: none;
}
.contact-card h2 {
  font-family: 'Inter', sans-serif;
  font-size: clamp(28px, 3.5vw, 40px);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.1;
  margin-bottom: 14px;
  text-wrap: balance;
  position: relative;
}
.contact-card h2 em { font-style: italic; color: var(--accent); }
.contact-card p { color: var(--ink-soft); margin-bottom: 28px; max-width: 420px; margin-left: auto; margin-right: auto; position: relative; }
.mail-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 22px;
  border-radius: 999px;
  background: var(--accent);
  color: #0a0512;
  font-family: 'JetBrains Mono', monospace;
  font-size: 14px;
  font-weight: 600;
  transition: transform 0.18s, box-shadow 0.18s;
  position: relative;
}
.mail-btn:hover { transform: translateY(-2px); box-shadow: 0 12px 32px -8px color-mix(in srgb, var(--accent) 60%, transparent); }
.contact-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 10px;
  margin-top: 36px;
}
.contact-list a {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 14px;
  transition: border-color 0.18s, color 0.18s;
  display: flex;
  justify-content: space-between;
  align-items: center;
  text-align: left;
}
.contact-list a > div { flex: 1; min-width: 0; }
.contact-list a:hover { border-color: var(--accent); color: var(--accent); }
.contact-list .lab {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  color: var(--ink-faint);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  display: block;
  margin-bottom: 2px;
}

footer {
  padding: 32px 24px 36px;
  text-align: center;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--ink-faint);
  letter-spacing: 1px;
  position: relative;
  z-index: 2;
}

/* ===== Page transitions (SPA swap) ===== */
@keyframes page-enter {
  from { opacity: 0; }
  to   { opacity: 1; }
}
main, footer {
  animation: page-enter 0.55s cubic-bezier(0.22, 0.61, 0.36, 1) both;
}
footer { animation-delay: 0.08s; }
main.is-out, footer.is-out {
  animation: none;
  opacity: 0;
  transition: opacity 0.18s ease;
}

/* ===== Email modal ===== */
.modal[hidden] { display: none; }
.modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  animation: modal-fade 0.18s ease both;
}
@keyframes modal-fade {
  from { opacity: 0; }
  to   { opacity: 1; }
}
.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.72);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}
.modal-card {
  position: relative;
  width: 100%;
  max-width: 480px;
  background: var(--bg-2);
  border: 1px solid color-mix(in srgb, var(--accent) 30%, var(--line));
  border-radius: 18px;
  padding: 36px 32px 30px;
  box-shadow: 0 24px 60px -12px rgba(0,0,0,0.6);
  animation: modal-pop 0.22s ease both;
  max-height: calc(100vh - 48px);
  overflow-y: auto;
}
@keyframes modal-pop {
  from { opacity: 0; transform: translateY(10px) scale(0.98); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}
.modal-close {
  position: absolute;
  top: 12px; right: 12px;
  width: 32px; height: 32px;
  border-radius: 8px;
  color: var(--ink-soft);
  font-size: 22px;
  line-height: 1;
  display: flex; align-items: center; justify-content: center;
  transition: background 0.18s, color 0.18s;
}
.modal-close:hover { background: rgba(255,255,255,0.05); color: var(--ink); }
.modal-card h2 {
  font-family: 'Inter', sans-serif;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.025em;
  margin-bottom: 6px;
}
.modal-card h2 em { font-style: italic; color: var(--accent); }
.modal-sub {
  color: var(--ink-soft);
  font-size: 13px;
  margin-bottom: 22px;
}
.field {
  display: block;
  margin-bottom: 14px;
}
.field > span {
  display: block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--ink-faint);
  margin-bottom: 6px;
}
.field input,
.field textarea {
  width: 100%;
  background: rgba(255,255,255,0.02);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 11px 14px;
  color: var(--ink);
  font-family: 'Inter', sans-serif;
  font-size: 14px;
  transition: border-color 0.18s, background 0.18s;
}
.field textarea {
  resize: vertical;
  min-height: 110px;
  line-height: 1.5;
}
.field input:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--accent);
  background: rgba(255,255,255,0.04);
}
.email-form button[type=submit] {
  width: 100%;
  justify-content: center;
  margin-top: 6px;
  border: none;
  cursor: pointer;
}
.email-form button[type=submit][disabled] {
  opacity: 0.55;
  cursor: wait;
}
.form-status {
  margin-top: 14px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  text-align: center;
  min-height: 18px;
  color: var(--ink-soft);
  letter-spacing: 0.5px;
}
.form-status.ok  { color: var(--good); }
.form-status.err { color: #ef4444; }

/* ===== Detail / case-study pages ===== */
.detail-back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--ink-soft);
  margin-bottom: 24px;
  transition: color 0.18s;
}
.detail-back:hover { color: var(--accent); }

.systems { display: flex; flex-direction: column; }
.system {
  display: grid;
  grid-template-columns: 1fr 1.25fr;
  gap: 56px;
  align-items: center;
  padding: 56px 0;
  border-top: 1px solid var(--line);
}
.system:first-child { border-top: none; padding-top: 16px; }
.sys-tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--accent);
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.system-text h2 {
  font-family: 'Inter', sans-serif;
  font-size: clamp(22px, 2.6vw, 30px);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.15;
  margin-bottom: 14px;
}
.system-text h2 em { font-style: italic; color: var(--accent); }
.system-text p {
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1.65;
  margin-bottom: 18px;
}
.system-text .tags { display: flex; flex-wrap: wrap; gap: 5px; }

.system-media {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.system-media video,
.system-media img {
  width: 100%;
  aspect-ratio: 16/9;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: #000;
  display: block;
  object-fit: cover;
}
.system-media img,
.zoomable { cursor: zoom-in; transition: transform 0.2s ease, border-color 0.2s ease; }
.system-media img:hover,
.zoomable:hover { border-color: var(--accent); }

.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.92);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  cursor: zoom-out;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.18s ease;
}
.lightbox.open { opacity: 1; pointer-events: auto; }
.lightbox img {
  max-width: 92vw;
  max-height: 92vh;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6);
  object-fit: contain;
  background: #000;
}
.lightbox-close {
  position: absolute;
  top: 20px;
  right: 24px;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #fff;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 1.5px;
  padding: 6px 12px;
  border-radius: 8px;
  cursor: pointer;
}
.lightbox-close:hover {
  border-color: var(--accent);
  color: var(--accent);
}
.system-media iframe {
  width: 100%;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: #000;
  display: block;
}
.video-placeholder {
  width: 100%;
  aspect-ratio: 16/9;
  border-radius: 14px;
  border: 1px dashed var(--line);
  background: rgba(255,255,255,0.02);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 10px;
  color: var(--ink-faint);
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
}
.video-placeholder svg { width: 32px; height: 32px; opacity: 0.45; }

@media (max-width: 800px) {
  .system { grid-template-columns: 1fr; gap: 24px; padding: 40px 0; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}