/* Modern minimalist portfolio styles */
:root {
  --bg: #0b0c0e;
  --panel: #111318;
  --text: #e8eaed;
  --muted: #9aa0a6;
  --brand: #6ee7b7;
  --border: #1f232b;
  --shadow: 0 10px 30px rgba(0,0,0,.35);
  --radius: 14px;
}

/* Light theme variables */
:root.light {
  --bg: #f7f7f8;
  --panel: #ffffff;
  --text: #0b0c0e;
  --muted: #4b5563;
  --brand: #0ea5e9;
  --border: #e5e7eb;
  --shadow: 0 10px 30px rgba(0,0,0,.08);
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, Helvetica Neue, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  color: var(--text);
  background: radial-gradient(1200px 800px at 80% -10%, #0f172a 0%, transparent 60%),
              radial-gradient(1000px 600px at -10% 10%, #052e2b 0%, transparent 55%),
              var(--bg);
  line-height: 1.6;
}

/* Softer bg in light mode */
:root.light body {
  background: radial-gradient(1200px 800px at 80% -10%, rgba(14,165,233,.12) 0%, transparent 60%),
              radial-gradient(1000px 600px at -10% 10%, rgba(14,165,233,.08) 0%, transparent 55%),
              var(--bg);
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: saturate(140%) blur(10px);
  background: rgba(11,12,14, .55);
  border-bottom: 1px solid var(--border);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
}
.brand {
  font-weight: 800;
  letter-spacing: 1px;
  color: var(--text);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: linear-gradient(180deg, #0e1014, #0b0c0e);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.06);
}
.light .brand {
  background: linear-gradient(180deg, #ffffff, #f8fafc);
  color: #0b0c0e;
  border-color: #e5e7eb;
  box-shadow: inset 0 1px 0 rgba(0,0,0,.04);
}
.nav-actions { display: flex; gap: 10px; }

.btn {
  --btn-bg: var(--brand);
  --btn-fg: #0b0c0e;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 40px;
  padding: 0 14px;
  text-decoration: none;
  color: var(--btn-fg);
  background: var(--btn-bg);
  border: 1px solid transparent;
  border-radius: 10px;
  font-weight: 600;
  transition: transform .15s ease, box-shadow .2s ease, background .2s ease, color .2s ease;
  box-shadow: 0 8px 20px rgba(110, 231, 183, .25);
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn.ghost {
  --btn-bg: rgba(255,255,255,.03);
  --btn-fg: var(--text);
  border-color: var(--border);
  box-shadow: none;
}
.btn.icon { width: 40px; padding: 0; }
.btn.icon:focus-visible { outline: 2px solid var(--brand); outline-offset: 2px; }
.btn.ghost:hover { background: rgba(255,255,255,.06); }

.hero {
  padding: 84px 0 40px;
}
.intro h1 {
  margin: 10px 0 6px;
  font-size: clamp(32px, 6vw, 56px);
  line-height: 1.1;
}
.subtitle { color: var(--muted); margin: 0 0 18px; }
.subtitle .im-a {
  font-weight: 800;
  font-size: clamp(20px, 3.2vw, 28px);
  color: var(--brand);
}
.light .subtitle .im-a { color: var(--brand); }
.typing {
  position: relative;
  white-space: nowrap;
}
.typing::after {
  content: "";
  position: absolute;
  right: -2px;
  top: 50%;
  transform: translateY(-50%);
  width: 1px;
  height: 1.2em;
  background: currentColor;
  animation: blink .9s steps(1) infinite;
}
@keyframes blink { 50% { opacity: 0; } }
.cta { display: flex; gap: 10px; flex-wrap: wrap; }

/* Make the entire subtitle prominent and brand-colored (dark=green, light=blue) */
.intro .subtitle {
  color: var(--brand);
  font-weight: 800;
  font-size: clamp(20px, 3.2vw, 28px);
}
.intro .subtitle .typing { color: inherit; }

.tech { padding: 36px 0 8px; }
.tech-groups { display: grid; gap: 22px; }
.tech-group { border: 1px solid var(--border); border-radius: 14px; padding: 14px; background: linear-gradient(180deg, rgba(255,255,255,.02), rgba(255,255,255,.01)); }
.tech-group h3 { margin: 0 0 8px; font-size: 16px; color: var(--text); }
.tech-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 14px;
  list-style: none;
  padding: 0;
  margin: 16px 0 0;
}
.tech-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: linear-gradient(180deg, rgba(255,255,255,.02), rgba(255,255,255,.01));
}
.tech-item img { width: 22px; height: 22px; filter: brightness(0) invert(1); }
.tech-item span { color: var(--text); font-weight: 600; }

/* Ensure white logos are visible in light mode if any */
.light .tech-item img { filter: none; }

.light .tech-group { background: linear-gradient(180deg, #ffffff, #fafafa); border-color: #e5e7eb; }
.light .tech-group h3 { color: #0b0c0e; }

.section-head { display: flex; align-items: end; justify-content: space-between; gap: 10px; }
.section-head .muted { margin: 0; }

.projects { padding: 30px 0 8px; }
.project-grid {
  margin-top: 16px;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 14px;
}
.card {
  display: grid;
  grid-template-rows: 140px auto auto;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: linear-gradient(180deg, #0e1014, #0b0c0e);
  box-shadow: var(--shadow);
  transition: transform .15s ease, box-shadow .2s ease, border-color .2s ease;
}
.card:hover { transform: translateY(-2px); border-color: #2a2f38; box-shadow: 0 16px 34px rgba(0,0,0,.45); }
.thumb { position: relative; display: grid; place-items: center; overflow: hidden; background: #0e1014; border-bottom: 1px solid var(--border); }
.thumb img { width: 100%; height: 100%; object-fit: cover; position: absolute; inset: 0; opacity: 0; transition: opacity .5s ease; }
.thumb img.active { opacity: 1; }
.light .thumb { background: radial-gradient(600px 200px at 50% -40%, rgba(14,165,233,.18), transparent), #ffffff; }
.light .card { background: linear-gradient(180deg, #ffffff, #fafafa); }
.light .card:hover { border-color: #d1d5db; box-shadow: 0 16px 34px rgba(0,0,0,.12); }
.light .tag { background: rgba(0,0,0,.03); color: #4b5563; border-color: #e5e7eb; }
.content { padding: 14px; display: grid; gap: 6px; }
.title { margin: 0; font-size: 16px; }
.desc { margin: 0; color: var(--muted); font-size: 14px; }
.meta { display: flex; gap: 8px; flex-wrap: wrap; padding: 12px 14px; border-top: 1px solid var(--border); }
.tag {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 10px; border: 1px solid var(--border); border-radius: 999px; color: var(--muted);
  background: rgba(255,255,255,.02);
  font-size: 12px; font-weight: 600;
}

.contact { padding: 36px 0 60px; }

.muted { color: var(--muted); }
h2 { margin: 0 0 6px; font-size: 22px; }

.site-footer { border-top: 1px solid var(--border); padding: 18px 0 40px; }

@media (min-width: 900px) {
  .hero { padding: 120px 0 60px; }
}


/* Lightbox */
.lightbox[aria-hidden="true"] { display: none; }
.lightbox[aria-hidden="false"] { display: grid; }
.lightbox {
  position: fixed; inset: 0; z-index: 50; place-items: center;
}
.lightbox-backdrop { position: absolute; inset: 0; background: rgba(0,0,0,.7); backdrop-filter: blur(2px); }
.lightbox-content { position: relative; width: min(92vw, 1100px); aspect-ratio: 16/9; background: #000; border: 1px solid var(--border); border-radius: 12px; overflow: hidden; display: grid; place-items: center; }
.lightbox-content img { width: 100%; height: 100%; object-fit: contain; background: #000; }
.lb-btn { position: absolute; top: 10px; width: 40px; height: 40px; border: 1px solid var(--border); border-radius: 10px; background: rgba(17,24,39,.6); color: #fff; display: grid; place-items: center; font-size: 22px; cursor: pointer; }
.lb-close { right: 10px; }
.lb-prev { left: 10px; top: calc(50% - 20px); }
.lb-next { right: 10px; top: calc(50% - 20px); }
.light .lb-btn { background: rgba(0,0,0,.45); }