/* ============================================================
   M M Sahad Rabbi — Global Stylesheet
   Aesthetic: Dark luxury, editorial, refined minimalism
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,300;0,400;0,500;0,600;1,300;1,400&family=DM+Sans:wght@300;400;500&family=JetBrains+Mono:wght@300;400&display=swap');

/* ── CSS Variables ── */
:root {
  --bg:          #0a0a0b;
  --bg-2:        #111114;
  --bg-card:     #141418;
  --border:      rgba(255,255,255,0.07);
  --border-h:    rgba(255,255,255,0.15);
  --gold:        #c9a84c;
  --gold-light:  #e2c77a;
  --gold-dim:    rgba(201,168,76,0.15);
  --white:       #f0ede8;
  --white-60:    rgba(240,237,232,0.6);
  --white-30:    rgba(240,237,232,0.3);
  --white-10:    rgba(240,237,232,0.08);
  --teal:        #4ecdc4;
  --teal-dim:    rgba(78,205,196,0.12);
  --font-serif:  'Cormorant Garamond', Georgia, serif;
  --font-sans:   'DM Sans', sans-serif;
  --font-mono:   'JetBrains Mono', monospace;
  --max-w:       1200px;
  --radius:      4px;
  --transition:  0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  background: var(--bg);
  color: var(--white);
  font-family: var(--font-sans);
  font-weight: 300;
  line-height: 1.7;
  overflow-x: hidden;
  cursor: none;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
ul { list-style: none; }
button { cursor: none; font-family: inherit; }

/* ── Custom Cursor ── */
#cursor {
  position: fixed;
  width: 8px; height: 8px;
  background: var(--gold);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  transition: transform 0.1s, width 0.3s, height 0.3s, background 0.3s;
  mix-blend-mode: normal;
}
#cursor-ring {
  position: fixed;
  width: 36px; height: 36px;
  border: 1px solid rgba(201,168,76,0.5);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9998;
  transform: translate(-50%, -50%);
  transition: transform 0.18s ease, width 0.3s, height 0.3s, opacity 0.3s;
}
body:hover #cursor-ring { opacity: 1; }
.cursor-hover #cursor { width: 14px; height: 14px; background: var(--gold-light); }
.cursor-hover #cursor-ring { width: 54px; height: 54px; border-color: var(--gold); }

/* ── Noise Texture Overlay ── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 9990;
  opacity: 0.5;
}

/* ── Navigation ── */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 60px;
  transition: background var(--transition), padding var(--transition);
}
nav.scrolled {
  background: rgba(10,10,11,0.92);
  backdrop-filter: blur(20px);
  padding: 16px 60px;
  border-bottom: 1px solid var(--border);
}
.nav-logo {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--white);
}
.nav-logo span { color: var(--gold); }
.nav-links {
  display: flex;
  gap: 40px;
  align-items: center;
}
.nav-links a {
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--white-60);
  position: relative;
  transition: color var(--transition);
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0;
  width: 0; height: 1px;
  background: var(--gold);
  transition: width var(--transition);
}
.nav-links a:hover { color: var(--white); }
.nav-links a:hover::after { width: 100%; }
.nav-links a.active { color: var(--gold); }
.nav-links a.active::after { width: 100%; }
.nav-cta {
  padding: 10px 24px;
  border: 1px solid var(--gold);
  color: var(--gold) !important;
  border-radius: var(--radius);
  font-size: 0.78rem !important;
  letter-spacing: 0.1em;
  transition: background var(--transition), color var(--transition) !important;
}
.nav-cta:hover { background: var(--gold); color: var(--bg) !important; }
.nav-cta::after { display: none !important; }

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 24px; height: 1px;
  background: var(--white);
  transition: var(--transition);
}
.hamburger.open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* Mobile menu */
.mobile-menu {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(10,10,11,0.97);
  backdrop-filter: blur(20px);
  z-index: 999;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 36px;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}
.mobile-menu.open { opacity: 1; pointer-events: all; display: flex; }
.mobile-menu a {
  font-family: var(--font-serif);
  font-size: 2.4rem;
  font-weight: 300;
  color: var(--white-60);
  letter-spacing: 0.05em;
  transition: color var(--transition);
}
.mobile-menu a:hover { color: var(--gold); }

/* ── Page Wrapper ── */
main { min-height: 100vh; }

/* ── Section Base ── */
section { padding: 120px 60px; max-width: var(--max-w); margin: 0 auto; }
.section-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.section-label::before {
  content: '';
  width: 32px; height: 1px;
  background: var(--gold);
  display: inline-block;
}
.section-title {
  font-family: var(--font-serif);
  font-size: clamp(2.4rem, 5vw, 4rem);
  font-weight: 300;
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--white);
  margin-bottom: 24px;
}
.section-subtitle {
  font-size: 1rem;
  color: var(--white-60);
  max-width: 560px;
  line-height: 1.8;
}

/* ── Gold Divider ── */
.gold-line {
  width: 64px; height: 1px;
  background: linear-gradient(90deg, var(--gold), transparent);
  margin: 32px 0;
}

/* ── Buttons ── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  background: var(--gold);
  color: var(--bg);
  font-family: var(--font-sans);
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border: none;
  border-radius: var(--radius);
  transition: background var(--transition), transform var(--transition);
}
.btn-primary:hover { background: var(--gold-light); transform: translateY(-2px); }
.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 13px 32px;
  background: transparent;
  color: var(--white);
  font-family: var(--font-sans);
  font-size: 0.82rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border: 1px solid var(--border-h);
  border-radius: var(--radius);
  transition: border-color var(--transition), color var(--transition);
}
.btn-secondary:hover { border-color: var(--gold); color: var(--gold); }
.btn-gold-outline {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 13px 32px;
  background: transparent;
  color: var(--gold);
  font-family: var(--font-sans);
  font-size: 0.82rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border: 1px solid var(--gold);
  border-radius: var(--radius);
  transition: background var(--transition), color var(--transition);
}
.btn-gold-outline:hover { background: var(--gold); color: var(--bg); }

/* ── Cards ── */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color var(--transition), transform var(--transition);
}
.card:hover { border-color: var(--border-h); transform: translateY(-4px); }

/* ── Tag Pill ── */
.tag {
  display: inline-block;
  padding: 4px 12px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  color: var(--gold);
  background: var(--gold-dim);
  border-radius: 2px;
}
.tag-teal {
  color: var(--teal);
  background: var(--teal-dim);
}

/* ── Footer ── */
footer {
  border-top: 1px solid var(--border);
  padding: 64px 60px 40px;
  background: var(--bg-2);
}
.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 64px;
}
.footer-brand p {
  font-size: 0.9rem;
  color: var(--white-60);
  line-height: 1.8;
  margin-top: 16px;
  max-width: 280px;
}
.footer-col h5 {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 20px;
}
.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col ul a {
  font-size: 0.88rem;
  color: var(--white-60);
  transition: color var(--transition);
}
.footer-col ul a:hover { color: var(--white); }
.footer-bottom {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 32px;
  border-top: 1px solid var(--border);
}
.footer-bottom p { font-size: 0.8rem; color: var(--white-30); }
.social-links { display: flex; gap: 20px; }
.social-links a {
  font-size: 0.78rem;
  font-family: var(--font-mono);
  color: var(--white-30);
  letter-spacing: 0.08em;
  transition: color var(--transition);
}
.social-links a:hover { color: var(--gold); }

/* ── Scroll Reveal ── */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal.visible { opacity: 1; transform: none; }
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ── Page Hero (reusable) ── */
.page-hero {
  padding: 180px 60px 100px;
  max-width: var(--max-w);
  margin: 0 auto;
  position: relative;
}
.page-hero::after {
  content: '';
  position: absolute;
  bottom: 0; left: 60px; right: 60px;
  height: 1px;
  background: linear-gradient(90deg, var(--gold), transparent 60%);
}

/* ── Back link ── */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--white-60);
  margin-bottom: 48px;
  transition: color var(--transition);
}
.back-link:hover { color: var(--gold); }
.back-link svg { width: 14px; transition: transform var(--transition); }
.back-link:hover svg { transform: translateX(-4px); }

/* ── Responsive ── */
@media (max-width: 1024px) {
  nav { padding: 20px 32px; }
  nav.scrolled { padding: 14px 32px; }
  section { padding: 80px 32px; }
  .page-hero { padding: 160px 32px 80px; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
  footer { padding: 56px 32px 32px; }
  .footer-bottom { flex-direction: column; gap: 16px; align-items: flex-start; }
}
@media (max-width: 768px) {
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .footer-inner { grid-template-columns: 1fr; gap: 32px; }
  section { padding: 64px 20px; }
  .page-hero { padding: 140px 20px 64px; }
  .page-hero::after { left: 20px; right: 20px; }
  footer { padding: 48px 20px 28px; }
}