/* Md. Mehedi Hassan — profile. Dark premium theme. */
@font-face { font-family: "Google Sans"; font-weight: 400 700; font-display: swap; src: url("../fonts/google-sans-latin.woff2") format("woff2"); }

:root {
  --bg: #05070f;
  --bg-2: #0a1020;
  --text: #e6edf7;
  --muted: #94a3b8;
  --line: rgba(255,255,255,.08);
  --glass: rgba(255,255,255,.035);
  --sky: #38bdf8;
  --violet: #818cf8;
  --coral: #fb7185;
  --gold: #fbbf24;
  --grad: linear-gradient(100deg, var(--sky), var(--violet) 50%, var(--coral));
  --ease: cubic-bezier(.2,.7,.2,1);
  --font: "Google Sans", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 90px; -webkit-text-size-adjust: 100%; }
html, body { overflow-x: clip; } body { margin: 0; font-family: var(--font); font-size: 16px; line-height: 1.65; color: var(--text); background: var(--bg); overflow-x: hidden; -webkit-font-smoothing: antialiased; }
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
h1, h2, h3 { margin: 0 0 .5em; line-height: 1.15; letter-spacing: -.02em; }
p { margin: 0 0 1em; }
button { font: inherit; color: inherit; cursor: pointer; }
::selection { background: rgba(56,189,248,.3); }
:focus-visible { outline: 2px solid var(--sky); outline-offset: 3px; border-radius: 8px; }
.wrap { width: 100%; max-width: 1180px; margin: 0 auto; padding: 0 22px; }
.grad { background: var(--grad); background-size: 200% auto; -webkit-background-clip: text; background-clip: text; color: transparent; animation: shine 8s linear infinite; }
@keyframes shine { to { background-position: 200% center; } }

/* ---------- Living background ---------- */
.bg { position: fixed; inset: 0; z-index: -1; overflow: hidden; pointer-events: none; }
.bg i { position: absolute; width: 50vmax; height: 50vmax; border-radius: 50%; filter: blur(90px); opacity: .22; will-change: transform; }
.bg i:nth-child(1) { background: #0ea5e9; top: -20vmax; left: -15vmax; animation: o1 24s ease-in-out infinite alternate; }
.bg i:nth-child(2) { background: #6366f1; top: 20vmax; right: -20vmax; animation: o2 28s ease-in-out infinite alternate; opacity: .18; }
.bg i:nth-child(3) { background: #e11d48; bottom: -25vmax; left: 25vw; animation: o3 32s ease-in-out infinite alternate; opacity: .12; }
@keyframes o1 { to { transform: translate(12vw, 14vh) scale(1.1); } }
@keyframes o2 { to { transform: translate(-14vw, 10vh) scale(.9); } }
@keyframes o3 { to { transform: translate(-10vw, -14vh) scale(1.15); } }
.bg .grid { position: absolute; inset: 0; background-image: linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px); background-size: 64px 64px; -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 30%, transparent 75%); mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 30%, transparent 75%); }

/* ---------- Glass ---------- */
.glass { position: relative; background: linear-gradient(160deg, rgba(255,255,255,.06), rgba(255,255,255,.02)); border: 1px solid var(--line); border-radius: 22px; backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); isolation: isolate; }
[data-spot]::before { content: ""; position: absolute; inset: 0; border-radius: inherit; z-index: -1; opacity: 0; transition: opacity .35s; pointer-events: none;
  background: radial-gradient(380px circle at var(--mx, 50%) var(--my, 50%), rgba(56,189,248,.14), rgba(129,140,248,.06) 40%, transparent 70%); }
[data-spot]:hover::before { opacity: 1; }
[data-spot]:hover { border-color: rgba(255,255,255,.16); }

/* ---------- Buttons ---------- */
.btn { display: inline-flex; align-items: center; gap: 9px; padding: 13px 24px; border-radius: 99px; font-weight: 500; font-size: .95rem; border: 1px solid transparent; transition: transform .3s var(--ease), box-shadow .3s, background .3s, border-color .3s; white-space: nowrap; }
.btn:hover { transform: translateY(-2px); }
.btn-sm { padding: 9px 16px; font-size: .875rem; }
.btn-glow { color: #05070f; background: var(--grad); background-size: 160% auto; box-shadow: 0 10px 30px -10px rgba(56,189,248,.7); }
.btn-glow:hover { background-position: right center; box-shadow: 0 14px 36px -10px rgba(251,113,133,.6); }
.btn-ghost { color: var(--text); background: rgba(255,255,255,.04); border-color: var(--line); }
.btn-ghost:hover { border-color: rgba(255,255,255,.25); background: rgba(255,255,255,.08); }

/* ---------- Nav ---------- */
.nav { position: fixed; top: 16px; left: 50%; transform: translateX(-50%); z-index: 50; display: flex; align-items: center; gap: 22px; width: min(1136px, calc(100% - 28px)); padding: 9px 10px 9px 18px; border-radius: 99px;
  background: rgba(8,12,24,.55); border: 1px solid var(--line); backdrop-filter: blur(16px) saturate(160%); -webkit-backdrop-filter: blur(16px) saturate(160%); transition: background .3s, box-shadow .3s; }
.nav.scrolled { background: rgba(8,12,24,.85); box-shadow: 0 18px 40px -20px rgba(0,0,0,.8); }
.nav-brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 700; font-size: 1.05rem; }
.nav-brand b { color: var(--coral); }
.brand-mark { display: grid; place-items: center; width: 34px; height: 34px; border-radius: 11px; font-size: .78rem; letter-spacing: .02em; color: #05070f; background: var(--grad); }
.nav-links { display: flex; gap: 2px; margin-left: auto; }
.nav-links a { padding: 8px 13px; border-radius: 99px; font-size: .9rem; color: var(--muted); transition: color .2s, background .2s; }
.nav-links a:hover, .nav-links a.on { color: var(--text); background: rgba(255,255,255,.07); }
.nav-burger { display: none; margin-left: auto; width: 40px; height: 40px; border-radius: 50%; border: 1px solid var(--line); background: rgba(255,255,255,.04); place-items: center; }

/* ---------- Hero ---------- */
.hero { position: relative; padding: 130px 0 40px; }
.hero-grid { display: grid; grid-template-columns: 1.08fr .92fr; gap: 40px; align-items: center; min-height: calc(100vh - 230px); }
.pill { display: inline-flex; align-items: center; gap: 9px; padding: 7px 15px; border-radius: 99px; font-size: .82rem; color: #bae6fd; background: rgba(56,189,248,.08); border: 1px solid rgba(56,189,248,.25); }
.live { width: 8px; height: 8px; border-radius: 50%; background: #22c55e; box-shadow: 0 0 0 0 rgba(34,197,94,.6); animation: live 2s infinite; }
@keyframes live { 70% { box-shadow: 0 0 0 9px rgba(34,197,94,0); } 100% { box-shadow: 0 0 0 0 rgba(34,197,94,0); } }
.hello { margin: 26px 0 4px; color: var(--muted); font-size: 1.1rem; }
.hero h1 { font-size: clamp(2.4rem, 5.6vw, 4.2rem); line-height: 1.05; letter-spacing: -.035em; margin-bottom: 14px; }
.role { font-size: clamp(1.15rem, 2vw, 1.5rem); font-weight: 500; color: #cbd5e1; min-height: 1.6em; margin-bottom: 18px; }
.role-text { color: var(--sky); }
.caret { display: inline-block; width: 2px; height: 1.05em; margin-left: 3px; vertical-align: -.15em; background: var(--coral); animation: blink 1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }
.lead { font-size: 1.08rem; color: var(--muted); max-width: 560px; margin-bottom: 30px; }
.cta { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 30px; }
.socials { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; }
.socials a { display: grid; place-items: center; width: 42px; height: 42px; border-radius: 13px; color: var(--muted); background: rgba(255,255,255,.04); border: 1px solid var(--line); transition: all .3s var(--ease); }
.socials a:hover { color: #fff; border-color: rgba(56,189,248,.5); transform: translateY(-3px); box-shadow: 0 10px 24px -12px rgba(56,189,248,.8); }
.socials .soc-invatech { display: inline-flex; width: auto; gap: 6px; padding: 0 14px; font-size: .85rem; font-weight: 500; }

.hero-visual { position: relative; height: 560px; display: grid; place-items: end center; }
.halo { position: absolute; width: 440px; height: 440px; bottom: 40px; left: 50%; margin-left: -220px; border-radius: 50%; background: radial-gradient(circle at 50% 40%, rgba(56,189,248,.55), rgba(99,102,241,.35) 45%, transparent 70%); filter: blur(10px); animation: breathe 6s ease-in-out infinite; }
@keyframes breathe { 50% { transform: scale(1.06); opacity: .85; } }
.ring { position: absolute; width: 460px; height: 460px; bottom: 30px; left: 50%; margin-left: -230px; border-radius: 50%; padding: 2px; background: conic-gradient(from 0deg, transparent 0 20%, var(--sky), var(--violet), var(--coral), transparent 80%); -webkit-mask: radial-gradient(farthest-side, transparent calc(100% - 2px), #000 calc(100% - 1px)); mask: radial-gradient(farthest-side, transparent calc(100% - 2px), #000 calc(100% - 1px)); animation: spin 14s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.portrait { position: relative; z-index: 1; width: 440px; height: auto; -webkit-mask-image: linear-gradient(#000 82%, transparent); mask-image: linear-gradient(#000 82%, transparent); filter: drop-shadow(0 30px 40px rgba(0,0,0,.5)); }
.orb { position: absolute; z-index: 2; display: grid; place-items: center; width: 58px; height: 58px; border-radius: 18px; background: rgba(10,16,32,.75); border: 1px solid rgba(255,255,255,.12); backdrop-filter: blur(10px); box-shadow: 0 14px 30px -14px rgba(0,0,0,.9); animation: bob 6s ease-in-out infinite; }
.orb-1 { top: 70px; left: 6%; } .orb-2 { top: 30px; right: 14%; animation-delay: -1s; } .orb-3 { top: 220px; left: -2%; animation-delay: -2s; }
.orb-4 { top: 190px; right: 0; animation-delay: -3s; } .orb-5 { bottom: 120px; left: 8%; animation-delay: -4s; } .orb-6 { bottom: 170px; right: 6%; animation-delay: -5s; }
@keyframes bob { 50% { transform: translateY(-14px) rotate(4deg); } }
.float-card { position: absolute; z-index: 3; display: flex; align-items: center; gap: 12px; padding: 12px 16px; border-radius: 16px; background: rgba(10,16,32,.8); border: 1px solid rgba(255,255,255,.12); backdrop-filter: blur(12px); box-shadow: 0 20px 40px -20px rgba(0,0,0,.9); animation: bob 7s ease-in-out infinite; }
.float-card b { display: block; font-size: .9rem; } .float-card small { color: var(--muted); font-size: .78rem; }
.fc-1 { left: -10px; bottom: 60px; } .fc-2 { right: -10px; bottom: 10px; animation-delay: -3s; }
.fc-ico { display: grid; place-items: center; width: 38px; height: 38px; border-radius: 12px; color: var(--sky); background: rgba(56,189,248,.12); }
.fc-gold { color: var(--gold); background: rgba(251,191,36,.12); }

.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-top: 36px; }
.stat { padding: 20px 22px; border-radius: 18px; background: rgba(255,255,255,.03); border: 1px solid var(--line); }
.stat strong { display: block; font-size: clamp(1.8rem, 3vw, 2.4rem); line-height: 1.1; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.stat span { color: var(--muted); font-size: .9rem; }

/* ---------- Marquee ---------- */
.marquee { overflow: hidden; padding: 30px 0; -webkit-mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent); mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent); }
.marquee-track { display: flex; gap: 12px; width: max-content; animation: marquee 45s linear infinite; }
.marquee:hover .marquee-track { animation-play-state: paused; }
@keyframes marquee { to { transform: translateX(-50%); } }
.chip { display: inline-flex; align-items: center; gap: 9px; padding: 10px 18px; border-radius: 99px; font-size: .9rem; font-weight: 500; color: #cbd5e1; background: rgba(255,255,255,.035); border: 1px solid var(--line); white-space: nowrap; }

/* ---------- Sections ---------- */
.section { padding: clamp(56px, 7vw, 96px) 0; }
.pt0 { padding-top: 0; }
.head { max-width: 720px; margin: 0 auto 40px; text-align: center; }
.head h2, .about-grid h2, .contact h2 { font-size: clamp(1.8rem, 3.6vw, 2.6rem); }
.head p { color: var(--muted); }
.kicker { display: inline-block; margin-bottom: 12px; font-size: .78rem; font-weight: 700; letter-spacing: .16em; text-transform: uppercase; color: var(--sky); }
.body { color: #c3cfdd; font-size: 1.05rem; }

.about-grid { display: grid; grid-template-columns: 1.25fr .75fr; gap: 48px; align-items: start; }
.info-card { padding: 18px; }
.info-photo { width: 100%; height: auto; aspect-ratio: 1; object-fit: cover; border-radius: 16px; margin-bottom: 16px; }
.info-list { list-style: none; margin: 0; padding: 0 6px 6px; display: grid; gap: 12px; font-size: .92rem; color: #c3cfdd; }
.info-list li { display: flex; gap: 12px; align-items: flex-start; }
.info-list svg { flex: none; color: var(--sky); margin-top: 2px; }
.info-list a:hover { color: var(--sky); }

.services { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.service { padding: 26px; transition: transform .4s var(--ease); }
.service:hover { transform: translateY(-5px); }
.svc-ico { display: grid; place-items: center; width: 50px; height: 50px; border-radius: 15px; margin-bottom: 16px; color: #fff; background: var(--grad); box-shadow: 0 12px 26px -12px rgba(129,140,248,.9); }
.service h3 { font-size: 1.12rem; }
.service p { color: var(--muted); font-size: .93rem; margin: 0; }

/* ---------- Tabs ---------- */
.tabs { display: flex; flex-wrap: wrap; justify-content: center; gap: 6px; margin: 0 auto 30px; padding: 6px; width: max-content; max-width: 100%; border-radius: 99px; background: rgba(255,255,255,.035); border: 1px solid var(--line); }
.tabs button { padding: 9px 18px; border: 0; border-radius: 99px; background: transparent; color: var(--muted); font-size: .9rem; font-weight: 500; transition: all .25s; }
.tabs button:hover { color: var(--text); }
.tabs button.is-on { color: #05070f; background: var(--grad); }

/* ---------- Skills ---------- */
.skills { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; }
.skill { display: flex; align-items: center; gap: 14px; padding: 16px 18px; transition: transform .35s var(--ease), opacity .3s; }
.skill:hover { transform: translateY(-4px); }
.ring-wrap { position: relative; flex: none; width: 62px; height: 62px; }
.pring { width: 62px; height: 62px; transform: rotate(-90deg); }
.pring circle { fill: none; stroke-width: 5; }
.pr-bg { stroke: rgba(255,255,255,.07); }
.pr-fg { stroke: var(--c); stroke-linecap: round; stroke-dasharray: 220; stroke-dashoffset: 220; filter: drop-shadow(0 0 6px var(--c)); transition: stroke-dashoffset 1.6s var(--ease); }
.skill.in .pr-fg { stroke-dashoffset: calc(220 - 220 * var(--p) / 100); }
.skill-logo { position: absolute; inset: 0; display: grid; place-items: center; }
.skill-meta { flex: 1; min-width: 0; }
.skill h3 { font-size: .95rem; font-weight: 500; margin: 0 0 8px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.bar { height: 5px; border-radius: 5px; background: rgba(255,255,255,.07); overflow: hidden; }
.bar i { display: block; height: 100%; width: 0; border-radius: inherit; background: linear-gradient(90deg, var(--c), #fff); transition: width 1.6s var(--ease); }
.skill.in .bar i { width: calc(var(--p) * 1%); }
.pct { font-size: .85rem; color: var(--muted); }
.pct b { font-size: 1.15rem; color: var(--text); }
.is-filtered-out { display: none !important; }

/* ---------- Timeline ---------- */
.timeline { list-style: none; margin: 0 auto; padding: 0; max-width: 900px; position: relative; }
.timeline::before { content: ""; position: absolute; left: 11px; top: 8px; bottom: 8px; width: 2px; background: linear-gradient(var(--sky), var(--violet), var(--coral), transparent); opacity: .5; }
.tl-item { position: relative; padding-left: 48px; margin-bottom: 18px; }
.tl-dot { position: absolute; left: 3px; top: 26px; width: 18px; height: 18px; border-radius: 50%; background: var(--bg); border: 3px solid var(--sky); box-shadow: 0 0 0 6px rgba(56,189,248,.12), 0 0 18px rgba(56,189,248,.6); }
.tl-card { padding: 22px 24px; }
.tl-top { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.tl-card h3 { font-size: 1.2rem; margin-bottom: 2px; }
.tl-co { color: var(--muted); font-size: .92rem; margin-bottom: 10px; }
.tl-co a { display: inline-flex; align-items: center; gap: 4px; color: var(--sky); }
.tl-period { align-self: flex-start; padding: 5px 12px; border-radius: 99px; font-size: .8rem; color: #bae6fd; background: rgba(56,189,248,.1); border: 1px solid rgba(56,189,248,.2); white-space: nowrap; }
.badge-gold { display: inline-flex; align-items: center; gap: 6px; padding: 5px 12px; margin-bottom: 10px; border-radius: 99px; font-size: .8rem; font-weight: 500; color: var(--gold); background: rgba(251,191,36,.1); border: 1px solid rgba(251,191,36,.3); }
.tl-card ul { margin: 0; padding-left: 18px; color: #c3cfdd; font-size: .94rem; }
.tl-card li { margin-bottom: 4px; }
.tl-card li::marker { color: var(--sky); }

/* ---------- Portfolio ---------- */
.works { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.work { padding: 12px; overflow: hidden; transition: transform .4s var(--ease); }
.work:hover { transform: translateY(-5px); }
.work-shot, .work-thumb { display: block; width: 100%; border-radius: 14px; overflow: hidden; background: #0b1220; border: 1px solid var(--line); padding: 0; }
.wbar { display: flex; align-items: center; gap: 6px; padding: 9px 12px; background: #111a2e; border-bottom: 1px solid var(--line); }
.wbar i { width: 9px; height: 9px; border-radius: 50%; background: #ff5f57; } .wbar i:nth-child(2) { background: #febc2e; } .wbar i:nth-child(3) { background: #28c840; }
.wbar em { margin-left: 8px; font-style: normal; font-size: .72rem; color: var(--muted); font-family: ui-monospace, Consolas, monospace; }
.wscroll { display: block; height: 230px; overflow-y: auto; overscroll-behavior: contain; scrollbar-width: thin; scrollbar-color: rgba(56,189,248,.5) transparent; }
.wscroll img { width: 100%; height: auto; }
.work-thumb { position: relative; aspect-ratio: 4 / 3; }
.work-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s var(--ease); }
.work:hover .work-thumb img { transform: scale(1.05); }
.play { position: absolute; inset: 0; margin: auto; width: 62px; height: 62px; border-radius: 50%; display: grid; place-items: center; color: #05070f; background: rgba(255,255,255,.9); box-shadow: 0 0 0 10px rgba(255,255,255,.15); }
.work-meta { padding: 14px 6px 4px; }
.wtype { font-size: .72rem; letter-spacing: .12em; text-transform: uppercase; color: var(--sky); font-weight: 700; }
.work h3 { font-size: 1.05rem; margin: 4px 0 2px; }
.work p { margin: 0; color: var(--muted); font-size: .88rem; }

/* ---------- Credentials ---------- */
.certs { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; margin-bottom: 18px; }
.cert { display: flex; gap: 16px; padding: 20px 22px; }
.cert-logo { flex: none; display: grid; place-items: center; width: 52px; height: 52px; border-radius: 15px; background: rgba(255,255,255,.06); border: 1px solid var(--line); }
.cert h3 { font-size: 1rem; margin-bottom: 4px; }
.cert p { margin: 0 0 6px; color: var(--muted); font-size: .88rem; }
.verify { display: inline-flex; align-items: center; gap: 4px; font-size: .85rem; color: var(--sky); }
.edu-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.edu-col { padding: 24px; }
.col-title { display: flex; align-items: center; gap: 10px; font-size: 1.1rem; margin-bottom: 16px; }
.col-title svg { color: var(--sky); }
.edu { display: grid; grid-template-columns: 54px 1fr; gap: 12px; padding: 12px 0; border-top: 1px solid var(--line); }
.edu-yr { font-weight: 700; color: var(--sky); font-size: .92rem; }
.edu b { display: block; font-weight: 500; font-size: .95rem; }
.edu small { display: block; color: var(--muted); font-size: .85rem; }
.edu em { display: block; font-style: normal; color: #7c8aa0; font-size: .82rem; margin-top: 2px; }

/* ---------- Contact ---------- */
.contact { position: relative; overflow: hidden; padding: clamp(36px, 6vw, 64px); text-align: center; border-radius: 30px; }
.contact-glow { position: absolute; inset: -40% 0 auto; height: 120%; z-index: -1; background: radial-gradient(closest-side, rgba(56,189,248,.25), transparent), radial-gradient(closest-side at 80% 60%, rgba(251,113,133,.18), transparent); }
.contact > p { color: var(--muted); max-width: 560px; margin: 0 auto 26px; }
.contact-btns { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; margin-bottom: 18px; }
.contact-loc { display: inline-flex; align-items: center; gap: 6px; color: var(--muted) !important; font-size: .9rem; margin: 0 !important; }

/* ---------- Footer, misc ---------- */
.foot { border-top: 1px solid var(--line); padding: 26px 0; margin-top: 40px; }
.foot-in { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; color: var(--muted); font-size: .88rem; }
.foot p { margin: 0; } .foot a { color: var(--sky); }
.to-top { position: fixed; right: 20px; bottom: 20px; z-index: 40; display: grid; place-items: center; width: 46px; height: 46px; border-radius: 50%; color: #05070f; background: var(--grad); opacity: 0; transform: translateY(16px); transition: all .35s var(--ease); pointer-events: none; }
.to-top.show { opacity: 1; transform: none; pointer-events: auto; }
.lightbox { position: fixed; inset: 0; z-index: 100; display: grid; place-items: center; padding: 30px; background: rgba(2,4,10,.88); backdrop-filter: blur(8px); }
.lightbox[hidden] { display: none; }
.lightbox figure { margin: 0; max-width: min(1000px, 100%); text-align: center; }
.lightbox img { max-height: 80vh; margin: 0 auto; border-radius: 14px; }
.lightbox figcaption { margin-top: 12px; color: var(--muted); }
.lb-close { position: absolute; top: 20px; right: 20px; width: 46px; height: 46px; border-radius: 50%; border: 1px solid var(--line); background: rgba(255,255,255,.06); display: grid; place-items: center; }

/* ---------- Reveal ---------- */
.js .reveal { opacity: 0; transform: translateY(26px); transition: opacity .8s var(--ease), transform .8s var(--ease); transition-delay: var(--d, 0ms); }
.js .reveal.in { opacity: 1; transform: none; }

/* ---------- Responsive ---------- */
@media (max-width: 1060px) {
  .skills { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .nav-links a { padding: 8px 10px; }
}
@media (max-width: 900px) {
  .hero { padding-top: 110px; }
  .hero-grid { grid-template-columns: 1fr; min-height: 0; }
  .hero-visual { height: 470px; max-width: 460px; margin: 0 auto; width: 100%; }
  .portrait { width: 360px; }
  .halo, .ring { width: 360px; height: 360px; margin-left: -180px; }
  .about-grid { grid-template-columns: 1fr; }
  .info-card { max-width: 420px; }
  .services, .works { grid-template-columns: 1fr 1fr; }
  .skills { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .certs, .edu-grid { grid-template-columns: 1fr; }
  .stats { grid-template-columns: 1fr 1fr; }
  .nav-burger { display: grid; }
  .nav .btn-sm span { display: none; }
  .nav-links { position: absolute; top: calc(100% + 10px); left: 0; right: 0; flex-direction: column; padding: 10px; border-radius: 22px; background: rgba(8,12,24,.96); border: 1px solid var(--line); opacity: 0; visibility: hidden; transform: translateY(-8px); transition: all .3s var(--ease); }
  .nav-links a { padding: 12px 16px; font-size: 1rem; }
  .nav.open .nav-links { opacity: 1; visibility: visible; transform: none; }
}
@media (max-width: 600px) {
  .wrap { padding: 0 16px; }
  .hero h1 { font-size: 2.3rem; }
  .hero-visual { height: 400px; }
  .portrait { width: 300px; }
  .halo, .ring { width: 300px; height: 300px; margin-left: -150px; }
  .orb { width: 46px; height: 46px; border-radius: 14px; }
  .orb svg { width: 20px; height: 20px; }
  .float-card { padding: 9px 12px; } .fc-1 { left: 0; bottom: 40px; } .fc-2 { right: 0; bottom: 0; }
  .services, .works { grid-template-columns: 1fr; }
  /* Skills: compact 2-column tiles on phones */
  .skills { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
  .skill { flex-direction: column; text-align: center; gap: 8px; padding: 16px 10px 14px; }
  .skill-meta { width: 100%; }
  .skill h3 { font-size: .85rem; margin: 0; white-space: normal; }
  .skill .bar { display: none; }
  .tabs { flex-wrap: nowrap; justify-content: flex-start; overflow-x: auto; scrollbar-width: none; width: 100%; }
  .tabs button { flex: none; }
  .cta .btn { flex: 1; justify-content: center; }
  .contact-btns .btn { width: 100%; justify-content: center; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .js .reveal { opacity: 1; transform: none; }
}