:root {
    --bg:          #050b18;
    --bg-card:     #0c1a2e;
    --bg-card-h:   #0f2040;
    --bg-alt:      #080f20;
    --border:      rgba(0,196,255,0.12);
    --border-h:    rgba(0,196,255,0.35);
    --accent:      #00c4ff;
    --accent-2:    #0066ff;
    --accent-glow: rgba(0,196,255,0.2);
    --gold:        #f0b429;
    --text:        #e8f0fe;
    --text-muted:  #7a90b0;
    --text-dim:    #445566;
    --serif:  'DM Serif Display', Georgia, serif;
    --mono:   'JetBrains Mono', 'Courier New', monospace;
    --sans:   'DM Sans', system-ui, sans-serif;
    --r:  12px;
    --rl: 20px;
    --ease: cubic-bezier(0.25,0.46,0.45,0.94);
}
body.light-mode {
    --bg:        #f2f5fc;
    --bg-card:   #ffffff;
    --bg-card-h: #f0f5ff;
    --bg-alt:    #e8edf9;
    --border:    rgba(0,100,200,0.12);
    --border-h:  rgba(0,100,200,0.35);
    --accent:    #0055cc;
    --accent-2:  #0033aa;
    --accent-glow: rgba(0,100,200,0.15);
    --text:      #0a1628;
    --text-muted:#44607a;
    --text-dim:  #99aabb;
}

/* ── RESET ── */
*,*::before,*::after { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior:smooth; }
body { font-family:var(--sans); background:var(--bg); color:var(--text); overflow-x:hidden; transition:background 0.4s,color 0.4s; }
a { text-decoration:none; color:inherit; }
img { max-width:100%; display:block; }
ul { list-style:none; }
button { font-family:var(--sans); }
.mono { font-family:var(--mono); }
.dim  { opacity:0.45; }
.container { max-width:1100px; margin:0 auto; padding:0 24px; }

/* Grid texture */
body::before {
    content:""; position:fixed; inset:0;
    background-image:
        linear-gradient(rgba(0,196,255,0.025) 1px,transparent 1px),
        linear-gradient(90deg,rgba(0,196,255,0.025) 1px,transparent 1px);
    background-size:60px 60px;
    pointer-events:none; z-index:0;
}
body.light-mode::before {
    background-image:
        linear-gradient(rgba(0,100,200,0.04) 1px,transparent 1px),
        linear-gradient(90deg,rgba(0,100,200,0.04) 1px,transparent 1px);
}

/* ── LOADER ── */
#loader {
    position:fixed; inset:0; background:var(--bg); z-index:9999;
    display:flex; align-items:center; justify-content:center;
    animation: loaderOut 0.5s ease 1.8s forwards;
}
@keyframes loaderOut { to { opacity:0; visibility:hidden; } }
.loader-inner { text-align:center; }
.loader-logo {
    font-family:var(--mono); font-size:28px; font-weight:700;
    color:var(--accent); letter-spacing:4px; margin-bottom:32px;
    animation:lpulse 1.2s ease infinite;
}
@keyframes lpulse { 0%,100%{opacity:1} 50%{opacity:0.3} }
.loader-bar-track { width:200px; height:2px; background:var(--border); border-radius:2px; margin:0 auto 16px; overflow:hidden; }
.loader-bar { height:100%; width:0; background:linear-gradient(90deg,var(--accent-2),var(--accent)); animation:lfill 1.6s ease forwards; }
@keyframes lfill { 0%{width:0} 60%{width:80%} 100%{width:100%} }
.loader-label { font-family:var(--mono); font-size:11px; color:var(--text-muted); letter-spacing:2px; text-transform:uppercase; }

/* ── CANVAS — sits above body, below all content ── */
#bg-canvas {
    position:fixed; inset:0;
    width:100%; height:100%;
    z-index:1;          /* above body bg */
    pointer-events:none; /* NEVER blocks clicks/hovers */
}

/* ── CUSTOM CURSOR ── */
.cursor-dot,.cursor-ring {
    position:fixed; pointer-events:none;
    z-index:99999;        /* always on top of everything */
    border-radius:50%;
    transform:translate(-50%,-50%);
    top:0; left:0;
}
.cursor-dot {
    width:6px; height:6px;
    background:var(--accent);
    box-shadow:0 0 10px var(--accent);
    transition:width 0.15s,height 0.15s;
}
.cursor-ring {
    width:32px; height:32px;
    border:1.5px solid rgba(0,196,255,0.55);
    transition:width 0.25s var(--ease),height 0.25s var(--ease),border-color 0.25s;
}
.cursor-ring.hov { width:48px; height:48px; border-color:var(--accent); }
body.light-mode .cursor-dot { background:var(--accent); box-shadow:0 0 8px var(--accent-glow); }
body.light-mode .cursor-ring { border-color:rgba(0,80,180,0.5); }

/* ── HEADER ── */
#header {
    position:fixed; top:0; width:100%;
    z-index:1000; padding:0 32px;
    transition:all 0.35s var(--ease);
}
#header.scrolled {
    background:rgba(5,11,24,0.92);
    backdrop-filter:blur(20px);
    border-bottom:1px solid var(--border);
}
body.light-mode #header.scrolled { background:rgba(242,245,252,0.92); }

.nav-container { display:flex; align-items:center; justify-content:space-between; height:68px; max-width:1200px; margin:0 auto; }
.nav-logo { font-family:var(--mono); font-size:18px; font-weight:700; color:var(--accent); letter-spacing:2px; }
.nav-links { display:flex; gap:36px; }
.nav-links a {
    font-family:var(--mono); font-size:12px; letter-spacing:1px;
    text-transform:uppercase; color:var(--text-muted);
    position:relative; transition:color 0.3s;
}
.nav-links a::after { content:""; position:absolute; bottom:-4px; left:0; width:0; height:1px; background:var(--accent); transition:width 0.3s; }
.nav-links a:hover { color:var(--text); }
.nav-links a:hover::after { width:100%; }
.theme-btn {
    background:none; border:1px solid var(--border); color:var(--text-muted);
    font-size:16px; width:36px; height:36px; border-radius:50%;
    display:flex; align-items:center; justify-content:center;
    transition:all 0.3s;
}
.theme-btn:hover { border-color:var(--accent); color:var(--accent); box-shadow:0 0 12px var(--accent-glow); }

/* ── HERO ── */
.hero {
    position:relative; min-height:100vh;
    display:flex; align-items:center;
    z-index:2; /* above canvas */
}
.hero-content {
    position:relative; z-index:2;
    max-width:1200px; margin:0 auto;
    padding:120px 32px 80px;
    display:flex; align-items:center;
    justify-content:space-between; gap:60px; width:100%;
}

.hero-tag {
    display:inline-flex; align-items:center; gap:8px;
    font-family:var(--mono); font-size:11px; letter-spacing:2px; text-transform:uppercase;
    color:var(--accent); background:rgba(0,196,255,0.08);
    border:1px solid rgba(0,196,255,0.2); padding:6px 14px;
    border-radius:100px; margin-bottom:28px;
    opacity:0; animation:fadeUp 0.6s ease 0.2s forwards;
}
.tag-dot { width:6px; height:6px; border-radius:50%; background:var(--accent); animation:blink 2s infinite; }
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:0.15} }

.hero-name {
    font-family:var(--serif); font-size:clamp(42px,5.5vw,72px);
    line-height:1.05; letter-spacing:-1px; margin-bottom:20px;
    opacity:0; animation:fadeUp 0.6s ease 0.35s forwards;
}
.hero-name em { font-style:italic; color:var(--accent); display:block; }
.hero-role { font-family:var(--mono); font-size:16px; color:var(--text-muted); margin-bottom:20px; opacity:0; animation:fadeUp 0.6s ease 0.5s forwards; }
.hero-role .mono { color:var(--accent); opacity:0.5; margin-right:8px; }
.hero-desc { font-size:16px; line-height:1.7; color:var(--text-muted); max-width:520px; margin-bottom:36px; opacity:0; animation:fadeUp 0.6s ease 0.65s forwards; }
.hero-desc strong { color:var(--accent); }

.hero-cta { display:flex; gap:14px; flex-wrap:wrap; margin-bottom:52px; opacity:0; animation:fadeUp 0.6s ease 0.8s forwards; }
.hero-stats { display:flex; align-items:center; gap:28px; opacity:0; animation:fadeUp 0.6s ease 0.95s forwards; }
.stat-num { display:block; font-family:var(--mono); font-size:28px; font-weight:700; color:var(--accent); line-height:1; margin-bottom:4px; }
.stat-label { font-size:11px; color:var(--text-dim); text-transform:uppercase; letter-spacing:1px; }
.stat-div { width:1px; height:40px; background:var(--border); }

/* Profile */
.hero-right { flex-shrink:0; }
.hero-right-inner { opacity:0; animation:fadeIn 0.8s ease 0.5s forwards; }
.profile-frame { position:relative; width:280px; height:280px; overflow:visible; }
.profile-ring {
    position:absolute; inset:-12px; border-radius:50%;
    border:1px solid rgba(0,196,255,0.3);
    animation:spin 20s linear infinite;
    pointer-events:none;
}
.profile-ring::before {
    content:""; position:absolute; top:-3px; left:50%; transform:translateX(-50%);
    width:6px; height:6px; border-radius:50%;
    background:var(--accent); box-shadow:0 0 12px var(--accent);
}
@keyframes spin { to{transform:rotate(360deg)} }
.profile-img {
    width:280px; height:280px; border-radius:50%; object-fit:cover;
    border:3px solid rgba(0,196,255,0.3);
    box-shadow:0 0 60px rgba(0,196,255,0.15),0 30px 60px rgba(0,0,0,0.5);
    transition: transform 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease;
    cursor: pointer;
    display: block;
}
.profile-img:hover {
    transform: scale(1.08) !important;
    box-shadow:
        0 0 40px rgba(0,196,255,0.7),
        0 0 80px rgba(0,196,255,0.35),
        0 30px 80px rgba(0,0,0,0.6) !important;
    border-color: rgba(0,196,255,1) !important;
}
.profile-badge {
    position:absolute; bottom:170px; right:252px;
    display:flex; align-items:center; gap:10px;
    background:var(--bg-card); border:1px solid var(--border);
    border-radius:var(--r); padding:10px 16px;
    box-shadow:0 8px 32px rgba(0,0,0,0.4);
    backdrop-filter:blur(10px); white-space:nowrap;
    font-size:22px;
}
.badge-title { font-family:var(--mono); font-size:13px; font-weight:700; color:var(--gold); line-height:1; margin-bottom:2px; }
.badge-sub { font-size:11px; color:var(--text-muted); }

.scroll-hint {
    position:absolute; bottom:32px; left:50%; transform:translateX(-50%);
    display:flex; flex-direction:column; align-items:center; gap:8px;
    font-family:var(--mono); font-size:10px; letter-spacing:3px; text-transform:uppercase;
    color:var(--text-dim); z-index:2;
    opacity:0; animation:fadeIn 1s ease 1.5s forwards;
}
.scroll-line { width:1px; height:40px; background:linear-gradient(to bottom,var(--accent),transparent); animation:spulse 2s ease infinite; }
@keyframes spulse { 0%,100%{opacity:0.3} 50%{opacity:1} }

/* ── BUTTONS ── */
.btn-primary {
    display:inline-flex; align-items:center; padding:12px 28px;
    background:linear-gradient(135deg,var(--accent-2),var(--accent));
    color:#fff; border:none; border-radius:var(--r);
    font-size:14px; font-weight:500; letter-spacing:0.5px;
    transition:all 0.3s; box-shadow:0 4px 24px rgba(0,196,255,0.2);
}
.btn-primary:hover { transform:translateY(-2px); box-shadow:0 8px 32px rgba(0,196,255,0.35); }
.btn-outline {
    display:inline-flex; align-items:center; padding:12px 28px;
    background:transparent; color:var(--accent);
    border:1px solid rgba(0,196,255,0.4); border-radius:var(--r);
    font-size:14px; font-weight:500; transition:all 0.3s;
}
.btn-outline:hover { background:rgba(0,196,255,0.08); border-color:var(--accent); transform:translateY(-2px); }
.btn-primary-sm {
    display:inline-flex; align-items:center; padding:9px 20px; margin-top:20px;
    background:linear-gradient(135deg,var(--accent-2),var(--accent));
    color:#fff; border:none; border-radius:8px; font-size:13px; font-weight:500; transition:all 0.3s;
}
.btn-primary-sm:hover { transform:translateY(-2px); box-shadow:0 6px 20px rgba(0,196,255,0.3); }
.btn-outline-sm {
    display:inline-flex; align-items:center; padding:8px 18px;
    background:transparent; color:var(--accent); border:1px solid rgba(0,196,255,0.3);
    border-radius:8px; font-size:13px; transition:all 0.3s;
}
.btn-outline-sm:hover { background:rgba(0,196,255,0.08); border-color:var(--accent); }

/* ── SECTIONS ── */
.section {
    padding:120px 0; position:relative;
    z-index:2; /* above canvas */
    background:transparent;
    opacity:1; transform:translateY(0);
    transition:opacity 0.7s,transform 0.7s;
}
.alt-section { background:rgba(0,196,255,0.012); }
.section.will-animate { opacity:0; transform:translateY(30px); }
.section.will-animate.visible { opacity:1; transform:translateY(0); }

.section-label { font-family:var(--mono); font-size:11px; letter-spacing:3px; text-transform:uppercase; color:var(--accent); margin-bottom:12px; opacity:0.8; }
.section-title { font-family:var(--serif); font-size:clamp(32px,4vw,52px); line-height:1.1; margin-bottom:24px; }
.section-intro { font-size:16px; line-height:1.75; color:var(--text-muted); max-width:640px; margin-bottom:60px; }

/* ── EXPERTISE ── */
.expertise-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:24px; }
.expertise-card {
    background:var(--bg-card); border:1px solid var(--border);
    border-radius:var(--rl); padding:32px 28px;
    transition:all 0.35s var(--ease); position:relative; overflow:hidden;
}
.expertise-card::before { content:""; position:absolute; top:0; left:0; right:0; height:2px; background:linear-gradient(90deg,var(--accent-2),var(--accent)); opacity:0; transition:opacity 0.3s; }
.expertise-card:hover { border-color:var(--border-h); background:var(--bg-card-h); transform:translateY(-4px); box-shadow:0 20px 48px rgba(0,0,0,0.3); }
.expertise-card:hover::before { opacity:1; }
.expertise-icon { font-size:28px; margin-bottom:16px; display:block; }
.expertise-card h3 { font-family:var(--serif); font-size:20px; margin-bottom:12px; }
.expertise-card p { font-size:14px; line-height:1.65; color:var(--text-muted); margin-bottom:20px; }
.etags { display:flex; flex-wrap:wrap; gap:6px; }
.etags span { font-family:var(--mono); font-size:10px; padding:4px 10px; border-radius:100px; background:rgba(0,196,255,0.08); border:1px solid rgba(0,196,255,0.2); color:var(--accent); }

/* ── PROJECTS ── */
.projects-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:20px; margin-bottom:48px; }
.project-card {
    background:var(--bg-card); border:1px solid var(--border);
    border-radius:var(--rl); padding:28px;
    display:flex; flex-direction:column;
    transition:all 0.35s var(--ease);
}
.project-card:hover { border-color:var(--border-h); background:var(--bg-card-h); transform:translateY(-5px); box-shadow:0 24px 60px rgba(0,0,0,0.35); }
.card-top { display:flex; align-items:center; justify-content:space-between; margin-bottom:20px; }
.card-bar { width:40px; height:4px; border-radius:4px; }
.card-num { font-size:12px; color:var(--text-dim); letter-spacing:1px; }
.card-link { font-size:20px; color:var(--text-muted); transition:color 0.2s; line-height:1; }
.card-link:hover { color:var(--accent); }
.project-card h3 { font-family:var(--serif); font-size:22px; margin-bottom:12px; }
.project-card p { font-size:14px; line-height:1.65; color:var(--text-muted); flex:1; margin-bottom:24px; }
.card-tags { display:flex; flex-wrap:wrap; gap:6px; margin-top:auto; }
.card-tags span { font-family:var(--mono); font-size:10px; padding:3px 10px; border-radius:100px; background:rgba(255,255,255,0.04); border:1px solid var(--border); color:var(--text-muted); }
body.light-mode .card-tags span { background:rgba(0,0,0,0.04); }
.gold-tag { background:rgba(240,180,41,0.1)!important; border-color:rgba(240,180,41,0.4)!important; color:var(--gold)!important; }
.github-callout { display:flex; align-items:center; justify-content:space-between; padding:18px 24px; border:1px solid var(--border); border-radius:var(--r); background:var(--bg-card); }
.github-callout .mono { font-size:13px; color:var(--text-muted); }

/* ── RESEARCH ── */
.research-layout { display:grid; grid-template-columns:1fr 360px; gap:32px; align-items:start; }
.research-pub { background:var(--bg-card); border:1px solid var(--border); border-radius:var(--rl); padding:40px; transition:all 0.35s; }
.research-pub:hover { border-color:var(--border-h); box-shadow:0 20px 48px rgba(0,0,0,0.3); }
.pub-top { display:flex; align-items:center; gap:12px; margin-bottom:24px; }
.venue-badge { font-family:var(--mono); font-size:11px; padding:5px 12px; border-radius:6px; background:rgba(0,196,255,0.1); border:1px solid rgba(0,196,255,0.3); color:var(--accent); letter-spacing:1px; text-transform:uppercase; }
.pub-title { font-family:var(--serif); font-size:24px; line-height:1.3; margin-bottom:16px; }
.pub-desc { font-size:15px; line-height:1.7; color:var(--text-muted); margin-bottom:24px; }
.research-side { display:flex; flex-direction:column; gap:20px; }
.side-card { background:var(--bg-card); border:1px solid var(--border); border-radius:var(--rl); padding:28px; transition:all 0.3s; }
.side-card:hover { border-color:var(--border-h); transform:translateX(4px); }
.side-icon { font-size:24px; margin-bottom:12px; display:block; }
.side-card h4 { font-family:var(--serif); font-size:18px; margin-bottom:8px; }
.oss-num { font-size:22px; font-weight:700; color:var(--accent); margin-bottom:10px; display:block; }
.side-card p { font-size:13px; line-height:1.6; color:var(--text-muted); margin-bottom:16px; }
.link-arrow { font-family:var(--mono); font-size:12px; color:var(--accent); transition:0.2s; }
.link-arrow:hover { letter-spacing:1px; }
.write-links { display:flex; gap:16px; }
.write-links a { font-family:var(--mono); font-size:14px; color:var(--accent); transition:0.2s; }
.write-links a:hover { opacity:0.7; }

/* ── EXPERIENCE ── */
.exp-layout { display:grid; grid-template-columns:1fr 360px; gap:48px; align-items:start; }
.timeline { position:relative; padding-left:28px; }
.timeline::before { content:""; position:absolute; left:0; top:8px; bottom:0; width:1px; background:linear-gradient(to bottom,var(--accent),transparent); opacity:0.3; }
.tl-item { position:relative; margin-bottom:48px; }
.tl-item:last-child { margin-bottom:0; }
.tl-dot { position:absolute; left:-34px; top:6px; width:12px; height:12px; border-radius:50%; background:var(--bg); border:2px solid var(--accent); box-shadow:0 0 10px var(--accent-glow); }
.tl-meta { display:flex; align-items:center; justify-content:space-between; gap:12px; margin-bottom:8px; flex-wrap:wrap; }
.tl-org { font-family:var(--mono); font-size:12px; color:var(--accent); letter-spacing:0.5px; }
.tl-date { font-size:11px; color:var(--text-dim); }
.tl-body h4 { font-family:var(--serif); font-size:20px; margin-bottom:10px; }
.tl-body p { font-size:14px; line-height:1.65; color:var(--text-muted); margin-bottom:14px; }
.certs-panel { background:var(--bg-card); border:1px solid var(--border); border-radius:var(--rl); padding:32px; }
.panel-label { font-size:11px; letter-spacing:2px; text-transform:uppercase; color:var(--accent); margin-bottom:20px; opacity:0.8; }
.cert-item { display:flex; gap:14px; align-items:flex-start; margin-bottom:20px; padding-bottom:20px; border-bottom:1px solid var(--border); font-size:20px; }
.cert-item:last-of-type { border-bottom:none; }
.cert-name { font-size:13px; font-weight:500; color:var(--text); margin-bottom:3px; }
.cert-issuer { font-family:var(--mono); font-size:11px; color:var(--text-dim); }
.skills-grid { display:flex; flex-wrap:wrap; gap:8px; }
.skills-grid span { font-family:var(--mono); font-size:11px; padding:5px 12px; border-radius:100px; background:rgba(0,196,255,0.07); border:1px solid rgba(0,196,255,0.18); color:var(--accent); transition:all 0.3s; }
.skills-grid span:hover { background:rgba(0,196,255,0.15); border-color:rgba(0,196,255,0.4); }

/* ── CONTACT ── */
.contact-center { text-align:center; }
.contact-desc { font-size:16px; color:var(--text-muted); margin-bottom:36px; max-width:420px; margin-left:auto; margin-right:auto; line-height:1.65; }
.contact-email { display:inline-block; font-family:var(--mono); font-size:clamp(16px,2.5vw,26px); color:var(--accent); margin-bottom:48px; padding-bottom:4px; border-bottom:1px solid rgba(0,196,255,0.3); transition:all 0.3s; }
.contact-email:hover { border-bottom-color:var(--accent); letter-spacing:1px; }
.social-row { display:flex; justify-content:center; gap:16px; flex-wrap:wrap; }
.social-link { display:flex; align-items:center; gap:6px; font-family:var(--mono); font-size:13px; color:var(--text-muted); padding:10px 20px; border:1px solid var(--border); border-radius:var(--r); transition:all 0.3s; }
.social-link:hover { color:var(--accent); border-color:rgba(0,196,255,0.4); background:rgba(0,196,255,0.05); transform:translateY(-2px); }

/* ── FOOTER ── */
footer { padding:24px 32px; border-top:1px solid var(--border); background:var(--bg-alt); position:relative; z-index:2; }
.footer-inner { max-width:1200px; margin:0 auto; display:flex; align-items:center; justify-content:space-between; gap:20px; flex-wrap:wrap; font-size:13px; color:var(--text-muted); }
.status-dot { display:inline-block; width:6px; height:6px; border-radius:50%; background:#00ff88; box-shadow:0 0 8px #00ff88; animation:blink 2s infinite; margin-right:6px; }

/* ── ANIMATIONS ── */
@keyframes fadeUp { from{opacity:0;transform:translateY(20px)} to{opacity:1;transform:translateY(0)} }
@keyframes fadeIn  { from{opacity:0} to{opacity:1} }

/* ── RESPONSIVE ── */
@media(max-width:1024px) {
    .expertise-grid,.projects-grid { grid-template-columns:1fr 1fr; }
    .research-layout,.exp-layout { grid-template-columns:1fr; }
    .research-side { display:grid; grid-template-columns:1fr 1fr; gap:20px; }
}
@media(max-width:768px) {
    .hero-content { flex-direction:column-reverse; text-align:center; padding:100px 24px 60px; gap:40px; }
    .profile-frame,.profile-img { width:200px; height:200px; }
    .profile-badge { right:-8px; }
    .hero-tag,.hero-cta,.hero-stats { justify-content:center; }
    .hero-desc { margin:0 auto 32px; }
    .expertise-grid,.projects-grid { grid-template-columns:1fr; }
    .research-side { grid-template-columns:1fr; }
    .nav-links { display:none; }
    .section { padding:80px 0; }
    .footer-inner { flex-direction:column; text-align:center; }
}

/* ── Modal System ── */
.detail-btn {
    display: inline-flex; align-items: center; gap: 6px;
    margin-top: 14px; padding: 7px 16px;
    background: transparent; color: var(--accent);
    border: 1px solid rgba(0,196,255,0.35); border-radius: 8px;
    font-family: var(--mono); font-size: 12px; letter-spacing: 0.5px;
    transition: all 0.3s; cursor: pointer;
}
.detail-btn:hover { background: rgba(0,196,255,0.1); border-color: var(--accent); transform: translateX(3px); }

.modal-overlay {
    position: fixed; inset: 0; z-index: 10000;
    background: rgba(0,0,0,0.75);
    backdrop-filter: blur(6px);
    display: flex; align-items: center; justify-content: center;
    padding: 24px;
    opacity: 0; visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}
.modal-overlay.open { opacity: 1; visibility: visible; }

.modal-box {
    background: #0a1628;
    border: 1px solid rgba(0,196,255,0.2);
    border-radius: 20px;
    padding: 40px;
    width: 100%; max-width: 720px;
    max-height: 88vh; overflow-y: auto;
    position: relative;
    box-shadow: 0 32px 80px rgba(0,0,0,0.7);
    transform: translateY(20px);
    transition: transform 0.3s ease;
    scrollbar-width: thin; scrollbar-color: rgba(0,196,255,0.3) transparent;
}
.modal-overlay.open .modal-box { transform: translateY(0); }
body.light-mode .modal-box { background: #ffffff; border-color: rgba(0,100,200,0.2); }

.modal-close {
    position: absolute; top: 16px; right: 20px;
    background: none; border: none; color: var(--text-muted);
    font-size: 18px; cursor: pointer; padding: 6px 10px;
    border-radius: 6px; transition: all 0.2s;
}
.modal-close:hover { color: var(--accent); background: rgba(0,196,255,0.1); }

.modal-header { display: flex; align-items: flex-start; gap: 18px; margin-bottom: 32px; }
.modal-icon { font-size: 36px; flex-shrink: 0; margin-top: 2px; }
.modal-title { font-family: var(--serif); font-size: 22px; line-height: 1.2; margin-bottom: 6px; }
.modal-sub { font-size: 12px; color: var(--text-muted); letter-spacing: 0.5px; }

.modal-section-label {
    font-size: 10px; letter-spacing: 3px; text-transform: uppercase;
    color: var(--accent); margin-bottom: 16px; opacity: 0.8;
}

/* ── Courses Grid ── */
.courses-grid {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px;
}
.course-card {
    background: rgba(0,196,255,0.05); border: 1px solid rgba(0,196,255,0.12);
    border-radius: 10px; padding: 14px 12px;
    transition: all 0.25s;
}
.course-card:hover { border-color: rgba(0,196,255,0.35); background: rgba(0,196,255,0.1); transform: translateY(-2px); }
body.light-mode .course-card { background: rgba(0,100,200,0.05); border-color: rgba(0,100,200,0.12); }
body.light-mode .course-card:hover { background: rgba(0,100,200,0.1); border-color: rgba(0,100,200,0.3); }
.course-icon { font-size: 18px; margin-bottom: 8px; }
.course-name { font-size: 12px; font-weight: 500; color: var(--text); line-height: 1.4; margin-bottom: 6px; }
.course-tag { font-family: var(--mono); font-size: 9px; letter-spacing: 1px; text-transform: uppercase; color: var(--accent); opacity: 0.7; }

/* ── LOR Cards ── */
.lor-list { display: flex; flex-direction: column; gap: 12px; }
.lor-card {
    display: flex; align-items: center; justify-content: space-between; gap: 16px;
    background: rgba(0,196,255,0.04); border: 1px solid rgba(0,196,255,0.12);
    border-radius: 12px; padding: 16px 20px;
    transition: all 0.25s;
}
.lor-card:hover { border-color: rgba(0,196,255,0.3); background: rgba(0,196,255,0.08); }
body.light-mode .lor-card { background: rgba(0,100,200,0.04); border-color: rgba(0,100,200,0.12); }
.lor-name { font-family: var(--serif); font-size: 16px; margin-bottom: 4px; }
.lor-role { font-size: 12px; color: var(--text-muted); }
.lor-actions { display: flex; gap: 8px; flex-shrink: 0; }
.lor-btn {
    display: inline-flex; align-items: center; padding: 7px 14px;
    background: transparent; color: var(--accent);
    border: 1px solid rgba(0,196,255,0.35); border-radius: 7px;
    font-family: var(--mono); font-size: 11px; letter-spacing: 0.5px;
    transition: all 0.2s; white-space: nowrap;
}
.lor-btn:hover { background: rgba(0,196,255,0.12); border-color: var(--accent); }
.lor-btn-dl { background: linear-gradient(135deg, var(--accent-2), var(--accent)); color: #fff; border-color: transparent; }
.lor-btn-dl:hover { opacity: 0.88; }

/* ── Contribution Stats ── */
.contrib-stats {
    display: flex; gap: 24px; margin-bottom: 24px;
    padding: 20px 24px; background: rgba(0,196,255,0.05);
    border: 1px solid rgba(0,196,255,0.12); border-radius: 12px;
}
.contrib-stat { text-align: center; flex: 1; }
.contrib-num { display: block; font-family: var(--mono); font-size: 28px; font-weight: 700; color: var(--accent); line-height: 1; margin-bottom: 6px; }
.contrib-label { font-size: 11px; color: var(--text-muted); text-transform: uppercase; letter-spacing: 1px; }

/* ── Contribution Bars ── */
.contrib-bar-section { display: flex; flex-direction: column; gap: 12px; margin-bottom: 24px; }
.contrib-bar-item { display: flex; align-items: center; gap: 12px; }
.bar-label { font-size: 12px; color: var(--text-muted); width: 190px; flex-shrink: 0; }
.bar-track { flex: 1; height: 8px; background: rgba(255,255,255,0.06); border-radius: 8px; overflow: hidden; }
body.light-mode .bar-track { background: rgba(0,0,0,0.08); }
.bar-fill { height: 100%; border-radius: 8px; width: 0; transition: width 0.8s cubic-bezier(0.25,0.46,0.45,0.94); }
.bar-pct { font-family: var(--mono); font-size: 11px; color: var(--text-dim); width: 28px; text-align: right; flex-shrink: 0; }

.gh-link-row { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 8px; }

/* ── Responsive Modal ── */
@media (max-width: 600px) {
    .modal-box { padding: 24px 18px; }
    .courses-grid { grid-template-columns: repeat(2, 1fr); }
    .lor-card { flex-direction: column; align-items: flex-start; }
    .contrib-stats { gap: 12px; }
    .bar-label { width: 130px; font-size: 11px; }
}

/* ── SNIST Modal Additions ── */

/* SGPA Chart */
.sgpa-chart-wrap {
    background: rgba(0,196,255,0.04);
    border: 1px solid rgba(0,196,255,0.12);
    border-radius: 12px; padding: 16px 20px;
    margin-bottom: 4px;
}
#sgpa-chart { width: 100% !important; display: block; }

/* Semester Tabs */
.sem-tabs {
    display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 16px;
}
.sem-tab {
    font-family: var(--mono); font-size: 11px; letter-spacing: 1px;
    padding: 6px 14px; border-radius: 100px;
    background: transparent; color: var(--text-muted);
    border: 1px solid rgba(0,196,255,0.2); cursor: pointer;
    transition: all 0.2s;
}
.sem-tab:hover { color: var(--accent); border-color: rgba(0,196,255,0.4); }
.sem-tab.active {
    background: rgba(0,196,255,0.15); color: var(--accent);
    border-color: var(--accent);
}
body.light-mode .sem-tab { border-color: rgba(0,100,200,0.2); }
body.light-mode .sem-tab.active { background: rgba(0,100,200,0.12); color: var(--accent); border-color: var(--accent); }

/* Semester Panels */
.sem-panel { display: none; }
.sem-panel.active { display: block; }
.sem-meta {
    font-size: 11px; color: var(--text-muted); letter-spacing: 0.5px;
    margin-bottom: 12px;
}
.sgpa-val { color: var(--accent); font-weight: 700; }

/* Course Table */
.course-table { display: flex; flex-direction: column; gap: 4px; }
.ct-row {
    display: flex; align-items: center; justify-content: space-between;
    padding: 8px 12px; border-radius: 8px;
    background: rgba(255,255,255,0.03);
    font-size: 13px; color: var(--text);
    transition: background 0.2s;
}
.ct-row:hover { background: rgba(0,196,255,0.06); }
.ct-lab { opacity: 0.72; }
.ct-lab:hover { opacity: 1; }
body.light-mode .ct-row { background: rgba(0,0,0,0.03); }
body.light-mode .ct-row:hover { background: rgba(0,100,200,0.06); }
.ct-grade {
    font-family: var(--mono); font-size: 11px; font-weight: 700;
    padding: 2px 9px; border-radius: 100px; flex-shrink: 0;
}
.gO  { background: rgba(0,255,136,0.15); color: #00ff88; }
.gA  { background: rgba(0,196,255,0.15); color: #00c4ff; }
.gB  { background: rgba(123,47,255,0.15); color: #a78bfa; }
.gC  { background: rgba(240,180,41,0.15); color: #f0b429; }
.gip { background: rgba(255,255,255,0.06); color: var(--text-dim); }

/* Capstone Card */
.capstone-card {
    display: flex; align-items: center; justify-content: space-between; gap: 20px;
    background: linear-gradient(135deg, rgba(0,196,255,0.06), rgba(123,47,255,0.06));
    border: 1px solid rgba(0,196,255,0.2);
    border-radius: 14px; padding: 24px 28px;
    transition: all 0.3s;
}
.capstone-card:hover { border-color: rgba(0,196,255,0.4); transform: translateY(-2px); }
.capstone-tag { font-size: 10px; letter-spacing: 2px; text-transform: uppercase; color: var(--accent); margin-bottom: 8px; opacity: 0.8; }
.capstone-title { font-family: var(--serif); font-size: 22px; margin-bottom: 8px; }
.capstone-desc { font-size: 13px; line-height: 1.6; color: var(--text-muted); max-width: 440px; }
.capstone-link {
    display: inline-flex; align-items: center; white-space: nowrap;
    padding: 10px 20px; background: linear-gradient(135deg,var(--accent-2),var(--accent));
    color: #fff; border-radius: 10px; font-family: var(--mono);
    font-size: 12px; font-weight: 500; flex-shrink: 0; transition: all 0.3s;
}
.capstone-link:hover { opacity: 0.88; transform: translateY(-2px); }

@media (max-width: 600px) {
    .capstone-card { flex-direction: column; align-items: flex-start; }
}

.bar-scale-label {
    font-size: 9px; color: var(--text-dim); letter-spacing: 1.5px;
    text-transform: uppercase; margin-bottom: 10px; opacity: 0.7;
}

.detail-btn-group {
    display: flex; flex-wrap: wrap; gap: 10px; margin-top: 14px;
}
.detail-btn-group .detail-btn { margin-top: 0; }