/* Toukir Bin Islam — personal site. Dark elegant theme, no frameworks. */

:root {
  --bg: #0f141b;
  --bg-alt: #151c26;
  --card: #1a2230;
  --text: #e8edf3;
  --muted: #a7b3c2;
  --accent: #d4a94e;
  --accent-dim: #b88d38;
  --border: #26303f;
  --radius: 12px;
  --maxw: 1080px;
  --font: "Segoe UI", system-ui, -apple-system, Roboto, "Helvetica Neue", Arial, sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

/* ---------- Nav ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(15, 20, 27, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0.8rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}
.brand {
  color: var(--accent);
  font-weight: 700;
  font-size: 1.05rem;
  text-decoration: none;
  letter-spacing: 0.02em;
}
.nav-links { display: flex; gap: 1.1rem; flex-wrap: wrap; }
.nav-links a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.92rem;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--accent); }

/* ---------- Hero ---------- */
.hero {
  padding: 4.5rem 1.25rem 3.5rem;
  text-align: center;
  background: radial-gradient(ellipse at 50% 0%, #1c2534 0%, var(--bg) 70%);
}
.hero-inner { max-width: var(--maxw); margin: 0 auto; }
.portrait {
  width: 190px;
  height: 190px;
  object-fit: cover;
  border-radius: 50%;
  border: 4px solid var(--accent);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5);
  margin-bottom: 1.4rem;
}
.hero h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  letter-spacing: 0.01em;
  margin-bottom: 0.4rem;
}
.headline {
  color: var(--accent);
  font-size: clamp(1.05rem, 2.4vw, 1.35rem);
  font-weight: 600;
  margin-bottom: 0.3rem;
}
.location { color: var(--muted); margin-bottom: 1.6rem; }
.hero-contact {
  display: flex;
  gap: 0.8rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 1.8rem;
}
.btn {
  display: inline-block;
  background: var(--accent);
  color: #141414;
  font-weight: 700;
  padding: 0.7rem 1.5rem;
  border-radius: 999px;
  text-decoration: none;
  transition: transform 0.15s, background 0.2s;
}
.btn:hover { background: var(--accent-dim); transform: translateY(-1px); }
.btn-outline {
  background: transparent;
  color: var(--accent);
  border: 2px solid var(--accent);
}
.btn-outline:hover { background: rgba(212, 169, 78, 0.12); }
.social-links {
  display: flex;
  gap: 0.9rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 1.8rem;
}
.social-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.6rem;
  height: 2.6rem;
  border-radius: 50%;
  border: 2px solid var(--accent);
  color: var(--accent);
  text-decoration: none;
  transition: transform 0.15s, background 0.2s, color 0.2s;
}
.social-icon svg { width: 1.25rem; height: 1.25rem; fill: currentColor; }
.social-icon:hover { background: var(--accent); color: #141414; transform: translateY(-2px); }
.licenses-strip {
  display: flex;
  gap: 0.6rem;
  justify-content: center;
  flex-wrap: wrap;
}
.licenses-strip span {
  font-size: 0.8rem;
  color: var(--muted);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.3rem 0.85rem;
  background: var(--bg-alt);
}

/* ---------- Sections ---------- */
.section { padding: 3.5rem 1.25rem; }
.section.alt { background: var(--bg-alt); }
.wrap { max-width: var(--maxw); margin: 0 auto; }
h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin-bottom: 1.4rem;
  padding-bottom: 0.6rem;
  border-bottom: 2px solid var(--accent);
  display: inline-block;
}
h2.sub { margin-top: 2.5rem; }
.section-intro { color: var(--muted); margin-bottom: 1.8rem; max-width: 640px; }
.lead { font-size: 1.1rem; margin-bottom: 1rem; }
.section p { margin-bottom: 1rem; }

/* ---------- Jobs ---------- */
.job {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem 1.75rem;
  margin-bottom: 1.25rem;
}
.job-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  flex-wrap: wrap;
}
.job h3 { font-size: 1.15rem; color: var(--text); }
.dates {
  color: var(--accent);
  font-size: 0.9rem;
  font-weight: 600;
  white-space: nowrap;
}
.employer { color: var(--muted); font-size: 0.95rem; margin-bottom: 0.8rem; }
.job ul { padding-left: 1.25rem; }
.job li { margin-bottom: 0.5rem; color: #d5dce6; }
.tag {
  font-size: 0.7rem;
  background: var(--accent);
  color: #141414;
  border-radius: 999px;
  padding: 0.15rem 0.6rem;
  vertical-align: middle;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ---------- Skills ---------- */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.1rem;
}
.skill {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.35rem 1.5rem;
  transition: border-color 0.2s, transform 0.15s;
}
.skill:hover { border-color: var(--accent); transform: translateY(-2px); }
.skill h3 {
  font-size: 1.02rem;
  color: var(--accent);
  margin-bottom: 0.55rem;
}
.skill p { color: var(--muted); font-size: 0.94rem; margin: 0; }

/* ---------- Credentials ---------- */
.cred-list { list-style: none; margin-bottom: 1rem; }
.cred-list li {
  padding: 0.65rem 0;
  border-bottom: 1px solid var(--border);
  color: #d5dce6;
}
.cred-list li strong { color: var(--accent); }

/* ---------- Gallery ---------- */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
}
.gallery-grid img {
  width: 100%;
  height: 320px;
  object-fit: cover;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

/* ---------- Contact ---------- */
.contact-wrap { text-align: center; }

/* ---------- Posts ---------- */
.post-controls {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 1.5rem;
  color: var(--muted);
}
.post-controls select {
  background: var(--card);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.5rem 0.75rem;
  font: inherit;
}
.posts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1rem;
}
.post-card {
  display: block;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.35rem;
  text-decoration: none;
  transition: transform 0.15s, border-color 0.15s;
}
.post-card:hover { transform: translateY(-2px); border-color: var(--accent); }
.post-card h3 { color: var(--text); font-size: 1.05rem; margin-bottom: 0.35rem; }
.post-date { color: var(--accent); font-size: 0.82rem; margin-bottom: 0.5rem; }
.post-ex { color: var(--muted); font-size: 0.92rem; margin-bottom: 0; }
.posts-loading { color: var(--muted); }
.posts-more { margin-top: 1.75rem; text-align: center; }

/* ---------- Article pages ---------- */
.article { max-width: 720px; margin: 0 auto; padding: 3rem 1.25rem; }
.article h1 { font-size: 1.9rem; line-height: 1.3; margin: 0.5rem 0 1rem; }
.article img { width: 100%; border-radius: var(--radius); border: 1px solid var(--border); margin: 1.25rem 0; }
.article p { margin-bottom: 1rem; color: #d5dce6; }
.article .back-link { margin-top: 2rem; }
.article .back-link a { color: var(--accent); }
.contact-wrap h2 { border-bottom: none; padding-bottom: 0; }
.contact-wrap .section-intro { margin-left: auto; margin-right: auto; }

/* ---------- Footer ---------- */
footer {
  text-align: center;
  padding: 1.75rem 1rem;
  color: var(--muted);
  font-size: 0.88rem;
  border-top: 1px solid var(--border);
}

/* ---------- Responsive ---------- */
@media (max-width: 640px) {
  .nav-links { gap: 0.75rem; }
  .nav-links a { font-size: 0.85rem; }
  .section { padding: 2.5rem 1rem; }
  .hero { padding: 3rem 1rem 2.5rem; }
  .portrait { width: 150px; height: 150px; }
  .job { padding: 1.15rem 1.2rem; }
}