/* ═══════════════════════════════════════════════════════════════
   'র' -তে রাজীব · Personal Site Stylesheet
   Dark · Minimalist · Modern · Bengali
═══════════════════════════════════════════════════════════════ */

/* ─── Google Fonts Import ─────────────────────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=Hind+Siliguri:wght@300;400;500;600;700&family=Tiro+Bangla:ital@0;1&family=Syne:wght@400;500;600;700;800&display=swap');

/* ─── CSS Variables ───────────────────────────────────────────── */
:root {
  --bg:          #070707;
  --surface:     #0e0e0e;
  --surface2:    #131313;
  --border:      #1c1c1c;
  --dim:         #282828;
  --muted:       #4a4a4a;
  --sub:         #7a7a7a;
  --body-clr:    #b0b0b0;
  --primary:     #e6e6e6;
  --accent:      #c9a96e;
  --accent-dim:  #8a6f42;
  --accent-glow: rgba(201,169,110,0.08);

  --serif:      'Tiro Bangla', Georgia, serif;
  --sans:       'Syne', sans-serif;
  --bangla:     'Hind Siliguri', 'Tiro Bangla', sans-serif;

  --max:        1120px;
  --pad:        clamp(1.5rem, 5vw, 4.5rem);
  --section-py: clamp(5rem, 10vh, 9rem);
  --radius:     2px;
}

/* ─── Reset ───────────────────────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background-color: var(--bg);
  color: var(--body-clr);
  font-family: var(--bangla);
  font-weight: 400;
  line-height: 1.85;
  overflow-x: hidden;
}

/* Grain texture overlay */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  opacity: 0.028;
  pointer-events: none;
  z-index: 9999;
}

/* ─── Base Elements ───────────────────────────────────────────── */
h1, h2, h3, h4 {
  font-family: var(--sans);
  font-weight: 800;
  color: var(--primary);
  letter-spacing: -0.03em;
  line-height: 1.1;
}

p { max-width: 62ch; }

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s;
}

ul { list-style: none; }

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

/* ─── Utility ─────────────────────────────────────────────────── */
.label {
  display: inline-block;
  font-family: var(--sans);
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
}

.section-wrap {
  padding: var(--section-py) var(--pad);
  max-width: calc(var(--max) + var(--pad) * 2);
  margin: 0 auto;
}

.section-header {
  display: flex;
  align-items: baseline;
  gap: 1.25rem;
  margin-bottom: clamp(3rem, 6vw, 5.5rem);
}

.section-num {
  font-family: var(--serif);
  font-size: 0.85rem;
  font-style: italic;
  color: var(--accent);
  padding-bottom: 0.1em;
}

.section-title {
  font-family: var(--bangla);
  font-size: clamp(2rem, 4.5vw, 3.5rem);
  font-weight: 700;
  letter-spacing: -0.01em;
}

/* ─── Reveal Animation ────────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(36px);
  transition: opacity 0.95s cubic-bezier(.16,1,.3,1),
              transform 0.95s cubic-bezier(.16,1,.3,1);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ─── Navigation ──────────────────────────────────────────────── */
#nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem var(--pad);
  transition: background 0.5s, border-color 0.5s;
  border-bottom: 1px solid transparent;
}

#nav.scrolled {
  background: rgba(7,7,7,0.9);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-color: var(--border);
}

.nav-logo {
  font-family: var(--serif);
  font-size: 1.5rem;
  font-weight: 400;
  font-style: italic;
  color: var(--primary);
  letter-spacing: 0.04em;
}

.nav-logo em {
  color: var(--accent);
  font-style: normal;
}

.nav-links {
  display: flex;
  gap: 2.2rem;
}

.nav-links a {
  font-family: var(--bangla);
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--sub);
  position: relative;
  padding-bottom: 2px;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 0; height: 1px;
  background: var(--accent);
  transition: width 0.3s cubic-bezier(.16,1,.3,1);
}

.nav-links a:hover {
  color: var(--primary);
}

.nav-links a:hover::after {
  width: 100%;
}

/* ─── Hero Section ────────────────────────────────────────────── */
#hero {
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 0 var(--pad) clamp(4rem, 9vh, 7.5rem);
  position: relative;
  overflow: hidden;
}

/* Giant background গlyph */
.hero-bg-glyph {
  position: absolute;
  top: 50%;
  right: -2vw;
  transform: translateY(-50%);
  font-family: var(--serif);
  font-size: clamp(20rem, 42vw, 52rem);
  font-weight: 400;
  font-style: italic;
  color: transparent;
  -webkit-text-stroke: 1px rgba(201,169,110,0.05);
  user-select: none;
  pointer-events: none;
  line-height: 1;
  letter-spacing: -0.05em;
}

/* Radial glow behind text */
.hero-glow {
  position: absolute;
  top: 60%;
  left: 10%;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(201,169,110,0.04) 0%, transparent 70%);
  pointer-events: none;
}

.hero-eyebrow {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.75rem;
  opacity: 0;
  animation: fadeUp 0.9s 0.15s cubic-bezier(.16,1,.3,1) forwards;
}

.hero-eyebrow::after {
  content: '';
  display: block;
  width: 2.5rem;
  height: 1px;
  background: var(--accent);
}

/* Main headline */
.hero-headline {
  opacity: 0;
  animation: fadeUp 1s 0.3s cubic-bezier(.16,1,.3,1) forwards;
}

.hero-r {
  display: block;
  font-family: var(--serif);
  font-size: clamp(1.2rem, 2.5vw, 1.8rem);
  font-style: italic;
  color: var(--accent);
  letter-spacing: 0.02em;
  margin-bottom: 0.3rem;
}

.hero-name-main {
  display: block;
  font-family: var(--sans);
  font-size: clamp(5rem, 13vw, 12rem);
  font-weight: 800;
  color: var(--primary);
  letter-spacing: -0.04em;
  line-height: 0.88;
}

.hero-tagline {
  margin-top: 2.25rem;
  font-family: var(--bangla);
  font-size: clamp(0.95rem, 1.5vw, 1.15rem);
  color: var(--sub);
  max-width: 52ch;
  line-height: 1.9;
  opacity: 0;
  animation: fadeUp 1s 0.5s cubic-bezier(.16,1,.3,1) forwards;
}

.hero-footer {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 2rem;
  margin-top: 4.5rem;
  opacity: 0;
  animation: fadeUp 1s 0.7s cubic-bezier(.16,1,.3,1) forwards;
}

.hero-location {
  font-family: var(--bangla);
  font-size: 0.78rem;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.location-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
  animation: pulse 2.5s ease-in-out infinite;
}

.hero-scroll-indicator {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
}

.scroll-text {
  font-family: var(--sans);
  font-size: 0.55rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
  writing-mode: vertical-rl;
}

.scroll-bar {
  width: 1px;
  height: 3.5rem;
  background: linear-gradient(to bottom, var(--accent), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}

/* ─── About Section ───────────────────────────────────────────── */
#about {
  border-top: 1px solid var(--border);
}

.about-grid {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: clamp(3rem, 6vw, 7rem);
  align-items: start;
}

.about-text p {
  font-family: var(--bangla);
  font-size: clamp(0.95rem, 1.2vw, 1.08rem);
  color: var(--body-clr);
  margin-bottom: 1.6rem;
  max-width: 58ch;
  line-height: 2;
}

.about-text p:last-child { margin-bottom: 0; }

.about-text strong {
  color: var(--primary);
  font-weight: 600;
}

.about-text em {
  font-family: var(--serif);
  font-style: italic;
  color: var(--primary);
  font-size: 1.05em;
}

/* Quote cards */
.about-aside {
  display: flex;
  flex-direction: column;
  gap: 1px;
  background: var(--border);
  position: sticky;
  top: 6rem;
}

.quote-card {
  background: var(--surface);
  padding: 1.75rem 1.75rem 1.75rem 2rem;
  position: relative;
  transition: background 0.3s;
}

.quote-card:hover {
  background: var(--surface2);
}

.quote-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 3px;
  height: 0;
  background: var(--accent);
  transition: height 0.5s cubic-bezier(.16,1,.3,1);
}

.quote-card:hover::before {
  height: 100%;
}

.quote-card .label {
  display: block;
  margin-bottom: 0.75rem;
}

.quote-card blockquote {
  font-family: var(--bangla);
  font-size: 0.92rem;
  color: var(--primary);
  line-height: 1.85;
  font-style: normal;
}

/* ─── Writing Section ─────────────────────────────────────────── */
#writing {
  border-top: 1px solid var(--border);
}

.writing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
}

.writing-card {
  background: var(--bg);
  padding: 2.5rem 2rem;
  transition: background 0.3s;
  position: relative;
  cursor: default;
  overflow: hidden;
}

.writing-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--accent-glow);
  opacity: 0;
  transition: opacity 0.4s;
}

.writing-card:hover {
  background: var(--surface);
}

.writing-card:hover::after {
  opacity: 1;
}

.w-card-accent-bar {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.5s cubic-bezier(.16,1,.3,1);
}

.writing-card:hover .w-card-accent-bar {
  transform: scaleX(1);
}

.w-card-glyph {
  font-family: var(--sans);
  font-size: 1.5rem;
  color: var(--accent-dim);
  margin-bottom: 1.25rem;
  display: block;
  line-height: 1;
  position: relative;
  z-index: 1;
}

.w-card-title {
  font-family: var(--bangla);
  font-size: 1rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 0.65rem;
  letter-spacing: 0;
  position: relative;
  z-index: 1;
}

.w-card-desc {
  font-family: var(--bangla);
  font-size: 0.82rem;
  color: var(--sub);
  line-height: 1.8;
  max-width: none;
  position: relative;
  z-index: 1;
}

/* ─── Identity Section ────────────────────────────────────────── */
#identity {
  border-top: 1px solid var(--border);
}

.identity-layout {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: clamp(3rem, 7vw, 8rem);
  align-items: start;
}

.identity-pull-quote {
  position: sticky;
  top: 7rem;
}

.pull-quote-mark {
  font-family: var(--serif);
  font-size: 6rem;
  color: var(--accent);
  line-height: 0.5;
  margin-bottom: 1.75rem;
  display: block;
  font-style: normal;
}

.pull-quote-text {
  font-family: var(--bangla);
  font-size: clamp(1.05rem, 1.6vw, 1.3rem);
  color: var(--primary);
  line-height: 1.9;
  font-weight: 400;
}

.pull-quote-cite {
  display: block;
  margin-top: 1.5rem;
  font-family: var(--sans);
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent-dim);
}

/* Traits list */
.traits-list {
  display: flex;
  flex-direction: column;
}

.trait-item {
  display: grid;
  grid-template-columns: 2rem 10rem 1fr;
  gap: 1.5rem;
  align-items: baseline;
  padding: 1.65rem 0;
  border-bottom: 1px solid var(--border);
  transition: background 0.2s;
}

.trait-item:first-child {
  border-top: 1px solid var(--border);
}

.trait-num {
  font-family: var(--serif);
  font-size: 0.75rem;
  font-style: italic;
  color: var(--accent-dim);
}

.trait-name {
  font-family: var(--bangla);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--primary);
}

.trait-desc {
  font-family: var(--bangla);
  font-size: 0.82rem;
  color: var(--sub);
  line-height: 1.8;
  max-width: none;
}

/* ─── Connect Section ─────────────────────────────────────────── */
#connect {
  border-top: 1px solid var(--border);
}

.connect-header-row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 3rem;
  flex-wrap: wrap;
  margin-bottom: clamp(3rem, 5vw, 5rem);
}

.connect-big-title {
  font-family: var(--sans);
  font-size: clamp(3rem, 8vw, 7rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 0.9;
  color: var(--primary);
}

.connect-big-title em {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 300;
  color: var(--accent);
}

.connect-subtitle {
  font-family: var(--bangla);
  font-size: 0.9rem;
  color: var(--sub);
  max-width: 36ch;
  line-height: 1.9;
}

/* Links grid */
.connect-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--border);
}

.connect-item {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 1.5rem 1.75rem;
  background: var(--bg);
  transition: background 0.3s;
  position: relative;
  overflow: hidden;
}

.connect-item:hover {
  background: var(--surface);
}

.connect-item:hover .connect-arrow {
  transform: translate(4px, -4px);
}

.connect-icon-wrap {
  width: 2.5rem;
  height: 2.5rem;
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 1rem;
  color: var(--accent-dim);
  transition: border-color 0.3s, color 0.3s;
}

.connect-item:hover .connect-icon-wrap {
  border-color: var(--accent-dim);
  color: var(--accent);
}

.connect-info {
  flex: 1;
  min-width: 0;
}

.connect-platform {
  font-family: var(--sans);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--sub);
  margin-bottom: 0.2rem;
}

.connect-handle {
  font-family: var(--bangla);
  font-size: 0.88rem;
  color: var(--primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.connect-arrow {
  color: var(--accent);
  font-size: 0.9rem;
  flex-shrink: 0;
  transition: transform 0.35s cubic-bezier(.16,1,.3,1);
}

/* Direct contact highlight */
.connect-item.direct {
  background: var(--surface);
}

.connect-item.direct:hover {
  background: var(--surface2);
}

/* ─── Footer ──────────────────────────────────────────────────── */
#footer {
  border-top: 1px solid var(--border);
  padding: 2.25rem var(--pad);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-sig {
  font-family: var(--serif);
  font-size: 1.1rem;
  font-style: italic;
  color: var(--accent);
}

.footer-meta {
  font-family: var(--bangla);
  font-size: 0.72rem;
  color: var(--muted);
  max-width: none;
}

/* ─── Keyframe Animations ─────────────────────────────────────── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(28px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.35; transform: scale(0.75); }
}

@keyframes scrollPulse {
  0%   { opacity: 0; transform: scaleY(0); transform-origin: top; }
  40%  { opacity: 1; transform: scaleY(1); transform-origin: top; }
  60%  { opacity: 1; transform: scaleY(1); transform-origin: bottom; }
  100% { opacity: 0; transform: scaleY(0); transform-origin: bottom; }
}

/* ─── Responsive ──────────────────────────────────────────────── */
@media (max-width: 960px) {
  .about-grid { grid-template-columns: 1fr; }
  .about-aside { position: static; }
  .writing-grid { grid-template-columns: 1fr 1fr; }
  .identity-layout { grid-template-columns: 1fr; }
  .identity-pull-quote { position: static; }
  .trait-item { grid-template-columns: 2rem 8rem 1fr; }
}

@media (max-width: 720px) {
  .nav-links { display: none; }
  .writing-grid { grid-template-columns: 1fr; }
  .connect-grid { grid-template-columns: 1fr; }
  .connect-header-row { flex-direction: column; align-items: flex-start; }
  .trait-item { grid-template-columns: 2rem 1fr; gap: 0.75rem; }
  .trait-desc { grid-column: 1 / -1; padding-left: 2.75rem; }
}

@media (max-width: 480px) {
  .hero-name-main {
    font-size: clamp(3.8rem, 18vw, 6rem);
  }
  .section-title {
    font-size: clamp(1.7rem, 6vw, 2.5rem);
  }
}