/* Drew Singer — Portfolio
   Minimal, responsive, and fast (no build tools). */

:root{
  --bg: #0b0c10;
  --bg2:#0f111a;
  --card:#121528;
  --text:#e7e9f2;
  --muted:#a7adc4;
  --line: rgba(231,233,242,.12);
  --shadow: 0 12px 40px rgba(0,0,0,.35);
  --accent: #7c5cff;
  --accent2:#22d3ee;

  --radius: 18px;
  --container: 1100px;
}

:root[data-theme="light"]{
  --bg: #f7f8fc;
  --bg2:#eef1fb;
  --card:#ffffff;
  --text:#0c1020;
  --muted:#4b556f;
  --line: rgba(12,16,32,.12);
  --shadow: 0 10px 28px rgba(10,20,60,.12);
  --accent: #5b4bff;
  --accent2:#0ea5e9;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  background: radial-gradient(1200px 700px at 20% 5%, rgba(124,92,255,.18), transparent 55%),
              radial-gradient(900px 600px at 85% 15%, rgba(34,211,238,.14), transparent 50%),
              linear-gradient(180deg,var(--bg),var(--bg2));
  color:var(--text);
  line-height:1.55;
}

img{max-width:100%; display:block}

.container{
  width:min(var(--container), calc(100% - 2rem));
  margin-inline:auto;
}

.skip-link{
  position:absolute;
  left:-999px;
  top:12px;
  background:var(--card);
  color:var(--text);
  padding:.75rem 1rem;
  border-radius:999px;
  border:1px solid var(--line);
}
.skip-link:focus{left:12px; z-index:9999}

.site-header{
  position:sticky;
  top:0;
  z-index:50;
  backdrop-filter: blur(12px);
  background: color-mix(in oklab, var(--bg) 72%, transparent);
  border-bottom: 1px solid var(--line);
}

.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:.85rem 0;
  gap:1rem;
}

.brand{
  display:flex;
  align-items:center;
  gap:.65rem;
  text-decoration:none;
  color:var(--text);
  font-weight:700;
}
.brand-mark{
  width:14px; height:14px;
  border-radius:4px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  box-shadow: 0 0 0 4px color-mix(in oklab, var(--accent) 15%, transparent);
}

.nav{display:flex; align-items:center; gap:1rem}
.nav-links{
  display:flex;
  align-items:center;
  gap:.9rem;
}
.nav a{
  color:var(--muted);
  text-decoration:none;
  font-weight:600;
  font-size:.95rem;
  padding:.4rem .55rem;
  border-radius:999px;
}
.nav a:hover{color:var(--text); background: color-mix(in oklab, var(--card) 72%, transparent)}
.header-actions{display:flex; gap:.5rem; align-items:center}

.theme-toggle{
  border:1px solid var(--line);
  background: color-mix(in oklab, var(--card) 78%, transparent);
  color:var(--text);
  width:44px;
  height:38px;
  border-radius:999px;
  cursor:pointer;
  box-shadow: var(--shadow);
}
.theme-toggle:hover{transform: translateY(-1px)}
.theme-toggle:active{transform: translateY(0px)}

.nav-toggle{
  display:none;
  border:1px solid var(--line);
  background: color-mix(in oklab, var(--card) 78%, transparent);
  color:var(--text);
  width:44px;
  height:38px;
  border-radius:999px;
  cursor:pointer;
}
.nav-toggle-bars{
  display:block;
  width:18px;
  height:2px;
  background:var(--text);
  margin:0 auto;
  position:relative;
}
.nav-toggle-bars::before,
.nav-toggle-bars::after{
  content:"";
  position:absolute;
  left:0;
  width:18px;
  height:2px;
  background:var(--text);
}
.nav-toggle-bars::before{top:-6px}
.nav-toggle-bars::after{top:6px}

.hero{
  position:relative;
  padding: 4.25rem 0 2.5rem;
  overflow:hidden;
}
.hero-grid{
  display:grid;
  grid-template-columns: 1.25fr .85fr;
  gap:2rem;
  align-items:start;
}
.hero-gradient{
  position:absolute;
  inset:-2px;
  background:
    radial-gradient(700px 420px at 30% 15%, rgba(124,92,255,.20), transparent 60%),
    radial-gradient(650px 450px at 78% 30%, rgba(34,211,238,.16), transparent 60%);
  pointer-events:none;
  opacity:.9;
}

.eyebrow{
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--muted);
  font-weight:700;
  font-size:.82rem;
  margin:0 0 .9rem;
}
.hero h1{
  margin:0 0 1rem;
  font-size: clamp(2.05rem, 3.2vw, 3.1rem);
  line-height:1.08;
}
.lede{
  margin:0 0 1.4rem;
  color: color-mix(in oklab, var(--text) 88%, var(--muted));
  font-size:1.05rem;
  max-width:62ch;
}

.cta-row{display:flex; gap:.8rem; flex-wrap:wrap; margin-bottom:1.2rem}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:.5rem;
  padding:.75rem 1rem;
  border-radius:999px;
  border:1px solid var(--line);
  background: color-mix(in oklab, var(--card) 85%, transparent);
  color:var(--text);
  text-decoration:none;
  font-weight:700;
  box-shadow: var(--shadow);
}
.btn:hover{transform: translateY(-1px)}
.btn:active{transform: translateY(0px)}
.btn.primary{
  border-color: color-mix(in oklab, var(--accent) 55%, var(--line));
  background: linear-gradient(135deg, color-mix(in oklab, var(--accent) 95%, #0000), color-mix(in oklab, var(--accent2) 80%, #0000));
}

.quick-links{
  display:flex;
  flex-wrap:wrap;
  gap:.6rem;
}
.pill{
  text-decoration:none;
  color:var(--muted);
  border:1px solid var(--line);
  background: color-mix(in oklab, var(--card) 75%, transparent);
  padding:.45rem .7rem;
  border-radius:999px;
  font-weight:600;
}
.pill:hover{color:var(--text)}

.hero-card{
  border:1px solid var(--line);
  background: color-mix(in oklab, var(--card) 78%, transparent);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  position:relative;
  overflow:hidden;
}
.hero-card-inner{
  padding:1.1rem 1.1rem 1.2rem;
  display:grid;
  gap:.85rem;
}
.stat{
  border:1px solid var(--line);
  background: color-mix(in oklab, var(--card) 88%, transparent);
  border-radius: 14px;
  padding:.85rem .9rem;
}
.stat-k{font-weight:800; letter-spacing:.02em}
.stat-v{color:var(--muted); font-weight:600}

.section{padding: 3.2rem 0}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:1rem;
  margin-bottom:1.25rem;
}
.section-head h2{margin:0; font-size:1.65rem}
.muted{color:var(--muted)}
.small{font-size:.92rem}

.grid{display:grid; gap:1rem}
.projects-grid{
  grid-template-columns: repeat(3, minmax(0, 1fr));
}
.skills-grid{
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.card{
  border:1px solid var(--line);
  background: color-mix(in oklab, var(--card) 84%, transparent);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding:1.1rem;
}
.card h3{margin:.1rem 0 .65rem}
.card p{margin:.5rem 0}

.project-card{
  padding:0;
  overflow:hidden;
  cursor:pointer;
  transition: transform .15s ease;
}
.project-card:hover{transform: translateY(-2px)}
.project-thumb{
  aspect-ratio: 16/10;
  width:100%;
  object-fit: cover;
  border-bottom:1px solid var(--line);
}
.project-body{padding:1rem}
.project-title{margin:0 0 .4rem; font-size:1.05rem}
.project-meta{display:flex; gap:.5rem; flex-wrap:wrap}
.tag{
  display:inline-flex;
  align-items:center;
  padding:.25rem .55rem;
  border-radius:999px;
  border:1px solid var(--line);
  color:var(--muted);
  font-weight:700;
  font-size:.78rem;
  background: color-mix(in oklab, var(--card) 88%, transparent);
}

.chips{
  list-style:none;
  padding:0;
  margin:.6rem 0 0;
  display:flex;
  flex-wrap:wrap;
  gap:.55rem;
}
.chips li{
  padding:.35rem .55rem;
  border-radius:999px;
  border:1px solid var(--line);
  background: color-mix(in oklab, var(--card) 90%, transparent);
  font-weight:650;
  color:var(--muted);
  font-size:.86rem;
}

.about-grid{
  display:grid;
  grid-template-columns: 1.2fr .8fr;
  gap:1rem;
}
.bullets{margin:.6rem 0 0; padding-left:1.1rem}
.bullets li{margin:.5rem 0}

.contact-card{
  border:1px solid var(--line);
  background: color-mix(in oklab, var(--card) 84%, transparent);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding:1.25rem;
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap:1rem;
}
.link-list{display:grid; gap:.55rem}
.link-row{
  display:flex;
  justify-content:space-between;
  align-items:center;
  text-decoration:none;
  color:var(--text);
  border:1px solid var(--line);
  background: color-mix(in oklab, var(--card) 90%, transparent);
  padding:.7rem .85rem;
  border-radius: 14px;
}
.link-row:hover{transform: translateY(-1px)}
.footer{padding:1.6rem 0 .25rem}

.sr-only{
  position:absolute !important;
  width:1px !important;
  height:1px !important;
  padding:0 !important;
  margin:-1px !important;
  overflow:hidden !important;
  clip:rect(0,0,0,0) !important;
  white-space:nowrap !important;
  border:0 !important;
}

/* Modal */
.modal{
  position:fixed;
  inset:0;
  display:none;
}
.modal[aria-hidden="false"]{display:block}
.modal-backdrop{
  position:absolute;
  inset:0;
  background: rgba(0,0,0,.55);
  backdrop-filter: blur(6px);
}
.modal-panel{
  position:relative;
  width:min(920px, calc(100% - 1.5rem));
  margin: 5.5rem auto 2rem;
  border:1px solid var(--line);
  background: var(--card);
  border-radius: calc(var(--radius) + 6px);
  box-shadow: var(--shadow);
  overflow:hidden;
}
.modal-close{
  position:absolute;
  right:.8rem;
  top:.8rem;
  width:42px;
  height:42px;
  border-radius:999px;
  border:1px solid var(--line);
  background: color-mix(in oklab, var(--card) 85%, transparent);
  color:var(--text);
  cursor:pointer;
}
.modal-body{padding:1.1rem}
.modal-hero{
  display:grid;
  grid-template-columns: 1.15fr .85fr;
  gap:1rem;
  align-items:start;
}
.modal-hero img{
  width:100%;
  border-radius: 16px;
  border:1px solid var(--line);
}
.modal-hero h3{margin:.1rem 0 .35rem; font-size:1.25rem}
.modal-hero p{margin:.55rem 0}
.kv{
  display:grid;
  gap:.55rem;
  margin-top:.85rem;
}
.kv-row{
  display:flex;
  justify-content:space-between;
  gap:1rem;
  border:1px solid var(--line);
  background: color-mix(in oklab, var(--bg2) 50%, var(--card));
  padding:.65rem .8rem;
  border-radius:14px;
}
.kv-row span:first-child{color:var(--muted); font-weight:700}
.kv-row span:last-child{font-weight:750}

@media (max-width: 940px){
  .hero-grid{grid-template-columns: 1fr; }
  .projects-grid{grid-template-columns: repeat(2, minmax(0, 1fr));}
  .skills-grid{grid-template-columns: 1fr;}
  .about-grid{grid-template-columns: 1fr}
  .contact-card{grid-template-columns: 1fr}
  .modal-hero{grid-template-columns: 1fr}
}
@media (max-width: 640px){
  .nav-toggle{display:inline-flex; align-items:center; justify-content:center}
  .nav-links{
    position:absolute;
    right:1rem;
    top:64px;
    display:none;
    flex-direction:column;
    gap:.2rem;
    padding:.6rem;
    border:1px solid var(--line);
    border-radius: 16px;
    background: color-mix(in oklab, var(--card) 92%, transparent);
    box-shadow: var(--shadow);
  }
  .nav-links.is-open{display:flex}
  .projects-grid{grid-template-columns: 1fr}
  .section-head{flex-direction:column; align-items:flex-start}
}


.profile-photo-wrapper {
  display: flex;
  justify-content: center;
  margin-top: 2rem;
}

.profile-photo {
  width: 360px;
  height: 360px;
  object-fit: cover;
  object-position: center 25%;
  border-radius: 50%;
  border: 3px solid var(--accent);
  box-shadow: 0 12px 30px rgba(0,0,0,0.15);
}