/* =============================================
   Md. Siam Ansary — Portfolio Stylesheet
   ============================================= */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:      #0d0d0d;
  --bg2:     #141414;
  --bg3:     #1c1c1c;
  --accent:  #c8a96e;
  --accent2: #e8c98e;
  --text:    #f0ede8;
  --muted:   #888;
  --border:  rgba(200,169,110,0.18);
  --serif:   'Playfair Display', Georgia, serif;
  --sans:    'DM Sans', sans-serif;
}

html { scroll-behavior: smooth; }
body {
  background: var(--bg); color: var(--text);
  font-family: var(--sans); font-weight: 300;
  line-height: 1.7; overflow-x: hidden;
}

/* ── NAV ── */
nav.topnav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 200;
  padding: 1.1rem 3rem;
  display: flex; justify-content: space-between; align-items: center;
  background: rgba(13,13,13,0.93); backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}
.nav-brand {
  font-family: var(--serif); font-size: 1.1rem;
  letter-spacing: 0.02em; color: var(--accent); text-decoration: none;
}
.nav-links { display: flex; gap: 1.8rem; list-style: none; align-items: center; }
.nav-links a {
  color: var(--muted); text-decoration: none;
  font-size: 0.77rem; letter-spacing: 0.12em; text-transform: uppercase;
  transition: color 0.25s; white-space: nowrap;
}
.nav-links a:hover, .nav-links a.active { color: var(--accent); }
.nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 0.3rem; }
.nav-toggle span { display: block; width: 22px; height: 1.5px; background: var(--muted); margin: 5px 0; transition: all 0.3s; }

/* ── SOCIAL STRIP ── */
.social-strip {
  position: fixed; right: 1.5rem; top: 50%; transform: translateY(-50%);
  display: flex; flex-direction: column; gap: 0.4rem; z-index: 100;
}
.social-strip a {
  writing-mode: vertical-rl; font-size: 0.55rem; letter-spacing: 0.17em;
  text-transform: uppercase; color: var(--muted); text-decoration: none;
  padding: 0.7rem 0.25rem; border: 1px solid var(--border); border-radius: 2px;
  background: var(--bg2); transition: all 0.25s;
}
.social-strip a:hover { color: var(--accent); border-color: var(--accent); }

/* ── PAGE HERO ── */
.page-hero {
  padding: 9rem 6rem 4.5rem;
  background: var(--bg2); border-bottom: 1px solid var(--border);
  position: relative; overflow: hidden;
}
.page-hero::before {
  content: ''; position: absolute; top: -30%; right: -10%;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(200,169,110,0.055) 0%, transparent 65%);
  pointer-events: none;
}
.page-hero-eyebrow {
  font-size: 0.67rem; letter-spacing: 0.3em; text-transform: uppercase;
  color: var(--accent); margin-bottom: 0.9rem;
  display: flex; align-items: center; gap: 0.8rem;
}
.page-hero-eyebrow::after { content: ''; display: block; height: 1px; width: 40px; background: var(--accent); opacity: 0.4; }
.page-hero h1 { font-family: var(--serif); font-size: clamp(2.4rem, 5vw, 3.8rem); font-weight: 700; line-height: 1.1; }
.page-hero h1 em { font-style: italic; color: var(--accent); }
.page-hero p { margin-top: 1rem; max-width: 540px; color: var(--muted); font-size: 0.98rem; line-height: 1.8; }

/* ── SECTIONS ── */
.section      { padding: 5rem 6rem; }
.section-alt  { background: var(--bg2); }
.section-label { font-size: 0.65rem; letter-spacing: 0.3em; text-transform: uppercase; color: var(--accent); margin-bottom: 0.7rem; }
.section-title { font-family: var(--serif); font-size: clamp(1.8rem, 3vw, 2.5rem); font-weight: 700; line-height: 1.15; margin-bottom: 2.5rem; }

/* ── BUTTONS ── */
.btn {
  padding: 0.7rem 1.7rem; border-radius: 2px; text-decoration: none;
  font-size: 0.76rem; letter-spacing: 0.1em; text-transform: uppercase;
  font-weight: 500; transition: all 0.25s; display: inline-flex;
  align-items: center; gap: 0.45rem; font-family: var(--sans); cursor: pointer; border: none;
}
.btn-primary { background: var(--accent); color: #0d0d0d; border: 1px solid var(--accent); }
.btn-primary:hover { background: var(--accent2); border-color: var(--accent2); }
.btn-outline { background: transparent; color: var(--accent); border: 1px solid var(--border); }
.btn-outline:hover { border-color: var(--accent); background: rgba(200,169,110,0.07); }
.btn-sm { padding: 0.38rem 0.85rem; font-size: 0.63rem; }

/* ── DETAIL CARD ── */
.detail-card {
  padding: 1.35rem 1.5rem; background: var(--bg3);
  border: 1px solid var(--border); border-radius: 2px; border-left: 3px solid var(--accent);
}
.detail-card h4 { font-size: 0.63rem; letter-spacing: 0.22em; text-transform: uppercase; color: var(--accent); margin-bottom: 0.45rem; }
.detail-card p  { font-size: 0.87rem; color: rgba(240,237,232,0.78); line-height: 1.65; }
.detail-card a  { font-size: 0.87rem; color: rgba(240,237,232,0.78); line-height: 1.65; text-decoration: none; display: block; }
.detail-card a:hover { color: var(--accent); }

/* ── TAG ── */
.tag        { font-size: 0.66rem; padding: 0.22rem 0.6rem; background: rgba(200,169,110,0.06); border: 1px solid var(--border); border-radius: 1px; color: rgba(240,237,232,0.6); }
.tag-accent { background: rgba(200,169,110,0.08); border-color: rgba(200,169,110,0.25); color: var(--accent); letter-spacing: 0.06em; }

/* ── FOOTER ── */
footer {
  padding: 2rem 6rem; border-top: 1px solid var(--border);
  display: flex; justify-content: space-between; align-items: center;
  background: var(--bg2); flex-wrap: wrap; gap: 1rem;
}
footer p { font-size: 0.73rem; color: var(--muted); }
.footer-links { display: flex; gap: 1.5rem; list-style: none; }
.footer-links a { font-size: 0.71rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); text-decoration: none; transition: color 0.25s; }
.footer-links a:hover { color: var(--accent); }

/* ── ANIMATIONS ── */
@keyframes fadeUp { from { opacity:0; transform:translateY(20px); } to { opacity:1; transform:translateY(0); } }
.fade-up { animation: fadeUp 0.65s ease forwards; opacity: 0; }
.d1{animation-delay:.05s} .d2{animation-delay:.17s} .d3{animation-delay:.29s}
.d4{animation-delay:.41s} .d5{animation-delay:.53s}

/* ── RESPONSIVE ── */
@media (max-width: 960px) {
  nav.topnav { padding: 1rem 1.5rem; }
  .nav-toggle { display: block; }
  .nav-links {
    display: none; position: absolute; top: 100%; left: 0; right: 0;
    background: rgba(13,13,13,0.97); flex-direction: column;
    padding: 1.5rem; gap: 1rem; border-bottom: 1px solid var(--border);
  }
  .nav-links.open { display: flex; }
  .social-strip { display: none; }
  .page-hero { padding: 7.5rem 1.5rem 3rem; }
  .section { padding: 4rem 1.5rem; }
  footer { padding: 2rem 1.5rem; flex-direction: column; text-align: center; }
}