:root {
  --bg:#f7fafc;
  --card:#ffffff;
  --text:#0f172a;
  --muted:#6b7280;
  --accent:#0b1120;
  --radius:12px;
  --arrow-light:#0b1120;
  --arrow-dark:#e5e7eb;
}

body { font-family:Inter,Arial,sans-serif; margin:0; background:var(--bg); color:var(--text); }

.container { max-width:1000px; margin:0 auto; padding:0 18px; }

/* Sticky glass navbar */
.glass-nav {
  position:sticky;
  top:0; left:0; right:0;
  backdrop-filter:blur(14px);
  background:rgba(255,255,255,0.55);
  border-bottom:1px solid rgba(0,0,0,0.06);
  z-index:50;
}

/* Hero */
.hero {
  background:linear-gradient(180deg,#0b1220 0%, #111827 60%);
  color:white; padding:70px 0; text-align:center;
}
.hero-title { font-size:2.6rem; margin:0 0 6px; }
.hero-sub { color:#d1d5db; }

/* Buttons */
.btn-card {
  display:inline-flex; align-items:center;
  gap:6px;
  padding:10px 16px;
  border-radius:999px;
  background:#0b1120;
  color:white; text-decoration:none;
  font-weight:600; transition:0.25s ease;
}
.btn-card.ghost { background:transparent; border:1px solid rgba(255,255,255,0.2); }
.btn-card.small { padding:8px 13px; font-size:0.85rem; }

/* Arrow animation */
.btn-card .arrow {
  display:inline-block; transition:transform 0.25s ease;
}
.btn-card:hover .arrow { transform:translateX(4px); }

/* Auto arrow color */
body.dark-mode .arrow { color:var(--arrow-dark); }
body:not(.dark-mode) .arrow { color:var(--arrow-light); }

/* Cards */
.card {
  background:var(--card);
  padding:22px;
  border-radius:var(--radius);
  margin-bottom:20px;
  box-shadow:0 6px 18px rgba(0,0,0,0.06);
}

/* Grids */
.skill-grid,
.projects-grid,
.documents-grid {
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(240px,1fr));
  gap:16px;
}

.project-card,
.doc-card {
  position:relative;
  padding:18px;
  border-radius:10px;
  background:#f9fafb;
  border:1px solid #e5e7ee;
  box-shadow:0 6px 20px rgba(15,23,42,0.06);
}

/* NEW badge */
.badge-new {
  position:absolute;
  top:10px; right:10px;
  background:#fbbf24;
  color:#0b1120;
  padding:3px 8px;
  font-size:0.7rem;
  font-weight:700;
  border-radius:6px;
  text-transform:uppercase;
}

.site-footer { text-align:center; color:var(--muted); padding:30px 0; }

/* Dark mode */
body.dark-mode { background:#0b0f13; color:#e6eef6; }
body.dark-mode .card { background:#0f1720; border-color:rgba(255,255,255,0.05); }
body.dark-mode .project-card,
body.dark-mode .doc-card {
  background:#0f1720;
  border-color:rgba(255,255,255,0.05);
}

/* Enhanced toggle */
.theme-toggle {
  cursor:pointer;
  background:none;
  border:none;
  font-size:1.4rem;
  display:flex;
  align-items:center;
  position:relative;
  width:40px; height:40px;
}
.theme-toggle .icon-sun { display:none; }
body.dark-mode .icon-sun { display:inline; }
body.dark-mode .icon-moon { display:none; }