:root {
    --bg: #0a1612;
    --green: #4ade80;
    --green-dim: rgba(74,222,128,0.12);
    --text: #e8f5e9;
    --muted: #7fb89a;
    --border: rgba(255,255,255,0.07);
    --card: rgba(255,255,255,0.03);
  }

  *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
  html { scroll-behavior: smooth; }

  body {
    background: var(--bg);
    color: var(--text);
    font-family: 'DM Sans', sans-serif;
    overflow-x: hidden;
  }

  /* noise */
  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='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");
    pointer-events: none; z-index: 0; opacity: .5;
  }

  /* ── NAV ── */
  nav {
    position: fixed; top: 20px; left: 50%;
    transform: translateX(-50%);
    z-index: 100;
    background: rgba(10,22,18,0.8);
    backdrop-filter: blur(16px);
    border: 1px solid var(--border);
    border-radius: 999px;
    padding: 10px 28px;
    display: flex; gap: 32px;
    animation: fadeDown .6s ease both;
  }
  nav a { color: var(--muted); text-decoration: none; font-size: 14px; font-weight: 500; transition: color .2s; }
  nav a:hover, nav a.active { color: var(--text); }

  /* ── HERO MONITOR ── */
  .hero {
    position: relative; z-index: 1;
    display: flex; flex-direction: column;
    align-items: center; justify-content: center;
    min-height: 100vh;
    padding: 120px 24px 60px;
    text-align: center;
    overflow: hidden;
  }

  .hero-glow {
    position: absolute;
    width: 700px; height: 700px;
    top: 50%; left: 50%;
    transform: translate(-50%, -55%);
    background: radial-gradient(ellipse, rgba(74,222,128,0.07) 0%, transparent 65%);
    pointer-events: none;
  }

  /* iMac monitor */
  .monitor-wrap {
    position: relative; z-index: 1;
    animation: float 5s ease-in-out infinite;
    margin-bottom: 0;
  }

  .monitor {
    width: 340px;
    background: #1a1a1a;
    border: 3px solid #2a2a2a;
    border-radius: 16px 16px 0 0;
    padding: 10px;
    box-shadow: 0 40px 80px rgba(0,0,0,0.7), 0 0 0 1px rgba(255,255,255,0.05);
  }

  .monitor-screen {
    background: linear-gradient(135deg, #0d2018, #1a3a2a);
    border-radius: 8px;
    height: 200px;
    display: flex; align-items: center; justify-content: center;
    position: relative; overflow: hidden;
  }

  .monitor-screen::before {
    content: '';
    position: absolute; inset: 0;
    background: radial-gradient(ellipse at 40% 30%, rgba(74,222,128,0.12) 0%, transparent 60%);
  }

  .monitor-label {
    background: rgba(255,255,255,0.92);
    color: #111;
    font-weight: 700;
    font-size: 15px;
    padding: 8px 20px;
    border-radius: 6px;
    position: relative; z-index: 1;
    box-shadow: 0 4px 16px rgba(0,0,0,0.3);
    display: flex; align-items: center; gap: 8px;
  }

  .monitor-avatar {
    font-size: 28px;
    position: absolute; top: 16px; left: 50%;
    transform: translateX(-50%);
    z-index: 2;
  }

  .monitor-name-tag {
    position: absolute; bottom: 12px; right: 12px;
    background: rgba(74,222,128,0.9);
    color: #0a1612;
    font-size: 10px; font-weight: 700;
    padding: 3px 10px; border-radius: 4px;
    letter-spacing: .04em;
    z-index: 2;
  }

  .monitor-cursor {
    position: absolute; bottom: 36px; right: 48px;
    font-size: 16px; z-index: 2;
  }

  .monitor-stand-neck {
    width: 60px; height: 30px;
    background: #1a1a1a;
    margin: 0 auto;
    clip-path: polygon(20% 0, 80% 0, 100% 100%, 0% 100%);
  }

  .monitor-stand-base {
    width: 140px; height: 10px;
    background: #222;
    border-radius: 999px;
    margin: 0 auto;
    box-shadow: 0 4px 16px rgba(0,0,0,0.5);
  }

  .monitor-keyboard {
    width: 200px; height: 16px;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 4px;
    margin: 16px auto 0;
    display: grid;
    grid-template-columns: repeat(12,1fr);
    gap: 2px; padding: 3px;
  }
  .monitor-keyboard span {
    background: rgba(255,255,255,0.1);
    border-radius: 1px;
  }

  .monitor-mouse {
    width: 24px; height: 32px;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 12px;
    position: absolute;
    right: -40px; bottom: 0;
  }
  .monitor-mouse::before {
    content: '';
    display: block;
    width: 1px; height: 10px;
    background: rgba(255,255,255,0.15);
    margin: 5px auto;
  }

  /* ── BIO STRIP ── */
  .bio-strip {
    position: relative; z-index: 1;
    max-width: 780px;
    margin: 60px auto 0;
    padding: 0 24px;
    display: flex; gap: 28px; align-items: flex-start;
    animation: fadeUp .8s .3s ease both; opacity: 0;
    animation-fill-mode: forwards;
  }

  .bio-icon {
    width: 64px; height: 64px;
    background: linear-gradient(135deg, #1a3a2a, #2d6a4f);
    border-radius: 16px;
    border: 1px solid rgba(74,222,128,0.2);
    display: flex; align-items: center; justify-content: center;
    font-size: 28px; flex-shrink: 0;
  }

  .bio-text p { font-size: 14px; color: rgba(232,245,233,0.6); line-height: 1.8; margin-bottom: 12px; }
  .bio-text p strong { color: var(--text); }

  .bio-learning {
    display: flex; align-items: flex-start; gap: 8px; margin-top: 4px;
  }
  .bio-learning-label {
    font-size: 13px; font-weight: 600; color: var(--text);
    display: flex; align-items: center; gap: 6px;
  }
  .bio-learning-desc { font-size: 12px; color: var(--muted); font-style: italic; margin-top: 2px; }

  /* ── TICKER ── */
  .ticker-wrap {
    overflow: hidden;
    border-top: 1px solid rgba(74,222,128,0.15);
    border-bottom: 1px solid rgba(74,222,128,0.15);
    background: rgba(74,222,128,0.04);
    padding: 14px 0;
    margin: 60px 0;
    position: relative; z-index: 1;
  }
  .ticker-track {
    display: flex; align-items: center; gap: 28px;
    width: max-content;
    animation: scroll-left 20s linear infinite;
    font-size: 12px; font-weight: 600; letter-spacing: .14em; color: var(--green);
  }
  .tick-dot { opacity: .5; font-size: 10px; }

  /* ── BEYOND SECTION ── */
  .beyond-section {
    position: relative; z-index: 1;
    max-width: 1100px; margin: 0 auto;
    padding: 20px 24px 100px;
  }

  .beyond-header {
    margin-bottom: 36px;
  }
  .beyond-tag {
    font-size: 11px; letter-spacing: .18em; text-transform: uppercase;
    color: var(--green); margin-bottom: 10px;
  }
  .beyond-title {
    font-family: 'Playfair Display', serif;
    font-size: clamp(28px, 4vw, 44px);
    font-weight: 900; line-height: 1.1;
  }

  /* bento grid */
  .bento {
    display: grid;
    grid-template-columns: 1fr 1.4fr 1fr;
    grid-template-rows: auto auto;
    gap: 14px;
  }

  @media (max-width: 860px) { .bento { grid-template-columns: 1fr 1fr; } }
  @media (max-width: 560px) { .bento { grid-template-columns: 1fr; } }

  .bento-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 20px;
    overflow: hidden;
    padding: 24px;
    transition: border-color .3s, transform .3s;
  }
  .bento-card:hover {
    border-color: rgba(74,222,128,0.2);
    transform: translateY(-3px);
  }

  .bento-card-title {
    display: flex; align-items: center; gap: 8px;
    font-size: 14px; font-weight: 600; color: var(--text);
    margin-bottom: 8px;
  }
  .bento-spark { color: var(--green); font-size: 16px; }
  .bento-desc { font-size: 12px; color: var(--muted); line-height: 1.6; margin-bottom: 16px; }

  /* currently reading */
  .book-cover {
    width: 80px;
    background: linear-gradient(135deg, #f0ead6, #e8dcc8);
    border-radius: 4px;
    padding: 8px 6px;
    box-shadow: 4px 4px 12px rgba(0,0,0,0.4), -2px 0 0 rgba(0,0,0,0.2);
    margin-top: 8px;
  }
  .book-cover-title { font-size: 9px; font-weight: 700; color: #1a1a1a; text-align: center; line-height: 1.3; margin-bottom: 4px; }
  .book-cover-sub { font-size: 8px; color: #444; text-align: center; }
  .book-cover-img { font-size: 36px; text-align: center; display: block; margin: 4px 0; }

  /* tech stacks */
  .tech-grid {
    display: grid; grid-template-columns: repeat(3,1fr); gap: 8px;
    margin-top: 4px;
  }
  .tech-item {
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--border);
    border-radius: 10px;
    width: 100%; aspect-ratio: 1;
    display: flex; flex-direction: column;
    align-items: center; justify-content: center;
    font-size: 20px; gap: 4px;
    cursor: default;
    transition: background .2s, border-color .2s;
  }
  .tech-item:hover { background: rgba(74,222,128,0.08); border-color: rgba(74,222,128,0.2); }
  .tech-item span { font-size: 9px; color: var(--muted); }

  /* map card */
  .map-card {
    background: linear-gradient(135deg, #0d2a1a, #1a3a22);
    border-radius: 12px;
    height: 130px;
    display: flex; align-items: center; justify-content: center;
    position: relative; overflow: hidden;
    margin-top: 4px;
  }
  .map-grid {
    position: absolute; inset: 0;
    background-image:
      linear-gradient(rgba(74,222,128,0.06) 1px, transparent 1px),
      linear-gradient(90deg, rgba(74,222,128,0.06) 1px, transparent 1px);
    background-size: 24px 24px;
  }
  .map-roads {
    position: absolute; inset: 0;
    background-image:
      linear-gradient(45deg, rgba(74,222,128,0.08) 1px, transparent 1px),
      linear-gradient(-45deg, rgba(74,222,128,0.05) 1px, transparent 1px);
    background-size: 60px 60px;
  }
  .map-pin { font-size: 28px; position: relative; z-index: 1; filter: drop-shadow(0 4px 8px rgba(0,0,0,0.5)); }
  .map-city {
    position: absolute; bottom: 10px; left: 14px;
    font-size: 10px; font-weight: 600; color: var(--green);
    letter-spacing: .08em; z-index: 1;
  }

  /* designers i admire */
  .admire-avatars {
    display: flex; gap: -8px; margin-top: 12px;
  }
  .admire-avatar {
    width: 40px; height: 40px; border-radius: 50%;
    border: 2px solid var(--bg);
    background: linear-gradient(135deg, #1a3a2a, #2d6a4f);
    display: flex; align-items: center; justify-content: center;
    font-size: 20px; margin-left: -8px;
  }
  .admire-avatar:first-child { margin-left: 0; }
  .admire-text { font-size: 13px; color: var(--muted); margin-top: 10px; }
  .admire-text strong { color: var(--text); }

  /* my persona chips */
  .persona-chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
  .persona-chip {
    background: rgba(74,222,128,0.08);
    border: 1px solid rgba(74,222,128,0.18);
    border-radius: 999px;
    padding: 6px 14px; font-size: 12px; color: var(--text);
    display: flex; align-items: center; gap: 5px;
  }

  /* ── EXPERIENCE ── */
  .experience-section {
    position: relative; z-index: 1;
    max-width: 900px; margin: 0 auto;
    padding: 80px 24px 100px;
  }

  .exp-header { text-align: center; margin-bottom: 60px; }

  .exp-list { display: flex; flex-direction: column; gap: 0; }

  .exp-item {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    padding: 36px 0;
    border-bottom: 1px solid var(--border);
    animation: fadeUp .6s ease both; opacity: 0;
    animation-fill-mode: forwards;
  }
  .exp-item:first-child { border-top: 1px solid var(--border); }

  @media (max-width: 600px) { .exp-item { grid-template-columns: 1fr; gap: 12px; } }

  /* .exp-left {}
  .exp-role { font-size: 15px; font-weight: 600; color: var(--text); margin-bottom: 4px; }
  .exp-company { color: var(--green); font-weight: 600; }
  .exp-date { font-size: 12px; color: var(--muted); margin-top: 4px; } */

  /* .exp-right {}
  .exp-desc { font-size: 14px; color: rgba(232,245,233,0.6); line-height: 1.75; margin-bottom: 12px; }
  .exp-collab { font-size: 12px; color: var(--muted); margin-bottom: 8px; font-style: italic; }
  .exp-faces { display: flex; gap: 0; } */
  .exp-face {
    width: 28px; height: 28px; border-radius: 50%;
    border: 2px solid var(--bg);
    background: linear-gradient(135deg, #1a3a2a, #2d6a4f);
    display: flex; align-items: center; justify-content: center;
    font-size: 14px; margin-left: -6px;
  }
  .exp-face:first-child { margin-left: 0; }

  /* ── CTA BANNER ── */
  .cta-banner {
    position: relative; z-index: 1;
    max-width: 1100px; margin: 0 auto 80px;
    padding: 0 24px;
  }

  .cta-inner {
    background: linear-gradient(135deg, rgba(74,222,128,0.12), rgba(74,222,128,0.05));
    border: 1px solid rgba(74,222,128,0.25);
    border-radius: 24px;
    padding: 40px 48px;
    display: flex; align-items: center; justify-content: space-between;
    gap: 24px; flex-wrap: wrap;
  }

  .cta-text h3 {
    font-family: 'Playfair Display', serif;
    font-size: clamp(20px, 3vw, 28px);
    font-weight: 700; margin-bottom: 8px;
    color: var(--text);
  }
  .cta-text p { font-size: 14px; color: var(--muted); }

  .cta-btn {
    display: inline-flex; align-items: center; gap: 10px;
    padding: 14px 28px;
    background: #0a1612;
    border: 1px solid rgba(255,255,255,0.12);
    border-radius: 999px;
    font-size: 14px; font-weight: 600;
    color: var(--text); text-decoration: none;
    white-space: nowrap;
    transition: background .2s, border-color .2s, transform .2s;
  }
  .cta-btn:hover {
    background: rgba(255,255,255,0.06);
    border-color: rgba(255,255,255,0.25);
    transform: translateX(3px);
  }

  /* ── KEYFRAMES ── */
  @keyframes fadeDown { from { opacity:0; transform:translateX(-50%) translateY(-20px); } to { opacity:1; transform:translateX(-50%) translateY(0); } }
  @keyframes fadeUp { from { opacity:0; transform:translateY(30px); } to { opacity:1; transform:translateY(0); } }
  @keyframes float { 0%,100% { transform:translateY(0); } 50% { transform:translateY(-10px); } }
  @keyframes scroll-left { from { transform:translateX(0); } to { transform:translateX(-50%); } }

  .reveal { opacity:0; transform:translateY(36px); transition: opacity .7s ease, transform .7s ease; }
  .reveal.visible { opacity:1; transform:translateY(0); }

  /* Fun ZOne */
.game-btn{
  position:fixed;
  left:30px;
  bottom:30px;

  display:flex;
  align-items:center;
  justify-content:center;
  width:60px;
  height:60px;

  background:linear-gradient(135deg,#1a3a2a,#2a5a3a);
  color:white;
  border-radius:16px;
  box-shadow:0 2px 5px rgba(24,190,2,0.4);
  transition:all .3s ease;
  z-index:9999;
}

/* ICON */
.btn-icon{
  font-size:26px;
}

/* 🔥 Tooltip */
.game-btn::after{
  content:"Fun Zone";
  position:absolute;
  bottom:70px;          /* button এর ডান পাশে */
  background:#1a3a2a;
  color:#fff;
  padding:8px 14px;
  border-radius:999px;
  font-size:14px;
  white-space:nowrap;

  opacity:0;
  transform:translateX(-5px);
  transition:all .25s ease;
  pointer-events:none;
}

/* Hover */
.game-btn:hover::after{
  opacity:1;
  transform:translateX(0);
}