/* ── VARIABLES ───────────────────────────── */
:root{--font-display:'Syne',sans-serif;--font-body:'Outfit',sans-serif;--ease-out-expo:cubic-bezier(.16,1,.3,1);--ease-out-quart:cubic-bezier(.25,1,.5,1);--nav-height:72px;--section-pad:clamp(80px,12vh,160px);--content-max:1200px;--radius:16px;--radius-sm:10px}
[data-theme="dark"]{--bg-primary:#0a0a0f;--bg-secondary:#12121a;--bg-card:#16161f;--bg-card-hover:#1c1c28;--border-color:rgba(255,255,255,.06);--border-hover:rgba(255,255,255,.12);--text-primary:#f0f0f5;--text-secondary:rgba(240,240,245,.55);--text-tertiary:rgba(240,240,245,.35);--accent:#00e5bf;--accent-dim:rgba(0,229,191,.12);--accent-glow:rgba(0,229,191,.25);--gradient-hero:radial-gradient(ellipse 80% 60% at 50% -10%,rgba(0,229,191,.08) 0%,transparent 60%);--noise-opacity:.025;--shadow-card:0 4px 32px rgba(0,0,0,.4);--shadow-nav:0 1px 0 rgba(255,255,255,.04);--skill-track:rgba(255,255,255,.06)}
[data-theme="light"]{--bg-primary:#f8f8fa;--bg-secondary:#fff;--bg-card:#fff;--bg-card-hover:#f2f2f6;--border-color:rgba(0,0,0,.07);--border-hover:rgba(0,0,0,.14);--text-primary:#111118;--text-secondary:rgba(17,17,24,.55);--text-tertiary:rgba(17,17,24,.35);--accent:#009e84;--accent-dim:rgba(0,158,132,.08);--accent-glow:rgba(0,158,132,.15);--gradient-hero:radial-gradient(ellipse 80% 60% at 50% -10%,rgba(0,158,132,.06) 0%,transparent 60%);--noise-opacity:.015;--shadow-card:0 2px 24px rgba(0,0,0,.06);--shadow-nav:0 1px 0 rgba(0,0,0,.06);--skill-track:rgba(0,0,0,.06)}

/* ── RESET ───────────────────────────────── */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
body{font-family:var(--font-body);background:var(--bg-primary);color:var(--text-primary);line-height:1.6;transition:background .5s var(--ease-out-expo),color .5s var(--ease-out-expo);overflow-x:hidden}
body::before{content:'';position:fixed;inset:0;pointer-events:none;z-index:9999;opacity:var(--noise-opacity);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)'/%3E%3C/svg%3E");background-repeat:repeat;background-size:180px}
a{color:inherit;text-decoration:none}img{display:block;max-width:100%}button{font-family:inherit;cursor:pointer;border:none;background:none}::selection{background:var(--accent);color:var(--bg-primary)}

/* ── NAV ─────────────────────────────────── */
.nav{position:fixed;top:0;left:0;right:0;height:var(--nav-height);z-index:1000;display:flex;align-items:center;justify-content:center;background:transparent;transition:background .4s,box-shadow .4s,backdrop-filter .4s}
.nav.scrolled{background:color-mix(in srgb,var(--bg-primary) 80%,transparent);backdrop-filter:blur(20px) saturate(1.4);-webkit-backdrop-filter:blur(20px) saturate(1.4);box-shadow:var(--shadow-nav)}
.nav__inner{width:100%;max-width:var(--content-max);padding:0 clamp(20px,4vw,48px);display:flex;align-items:center;justify-content:space-between}
.nav__logo{font-family:var(--font-display);font-weight:800;font-size:1.25rem;letter-spacing:-.02em;color:var(--text-primary)}.nav__logo span{color:var(--accent)}
.nav__links{display:flex;align-items:center;gap:32px;list-style:none}
.nav__links a{font-size:.875rem;font-weight:500;color:var(--text-secondary);transition:color .3s;position:relative}
.nav__links a::after{content:'';position:absolute;bottom:-4px;left:0;width:0;height:1.5px;background:var(--accent);transition:width .3s var(--ease-out-expo)}
.nav__links a:hover{color:var(--text-primary)}.nav__links a:hover::after{width:100%}
.nav__controls{display:flex;align-items:center;gap:10px}
.theme-toggle{width:40px;height:40px;border-radius:50%;display:grid;place-items:center;border:1px solid var(--border-color);color:var(--text-secondary);transition:border-color .3s,color .3s,background .3s}
.theme-toggle:hover{border-color:var(--accent);color:var(--accent);background:var(--accent-dim)}
.theme-toggle svg{width:18px;height:18px;transition:transform .4s var(--ease-out-expo)}.theme-toggle:hover svg{transform:rotate(30deg)}

/* ── LANG SWITCHER ───────────────────────── */
.lang-switcher{position:relative}
.lang-switcher__btn{display:flex;align-items:center;gap:6px;height:40px;padding:0 14px;border-radius:100px;border:1px solid var(--border-color);color:var(--text-secondary);font-size:.8rem;font-weight:600;letter-spacing:.04em;text-transform:uppercase;transition:border-color .3s,color .3s,background .3s;user-select:none}
.lang-switcher__btn:hover{border-color:var(--accent);color:var(--accent);background:var(--accent-dim)}
.lang-switcher__btn svg{width:12px;height:12px;transition:transform .3s var(--ease-out-expo)}
.lang-switcher.open .lang-switcher__btn svg{transform:rotate(180deg)}
.lang-switcher__btn .lang-flag{font-size:1rem;line-height:1}
.lang-dropdown{position:absolute;top:calc(100% + 8px);right:0;min-width:160px;background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-sm);box-shadow:var(--shadow-card);overflow:hidden;opacity:0;visibility:hidden;transform:translateY(-8px) scale(.96);transition:opacity .25s var(--ease-out-expo),transform .25s var(--ease-out-expo),visibility .25s;z-index:100}
.lang-switcher.open .lang-dropdown{opacity:1;visibility:visible;transform:translateY(0) scale(1)}
.lang-option{display:flex;align-items:center;gap:10px;width:100%;padding:12px 16px;font-size:.85rem;font-weight:500;color:var(--text-secondary);transition:background .2s,color .2s;text-align:left}
.lang-option:hover{background:var(--accent-dim);color:var(--text-primary)}
.lang-option.active{color:var(--accent)}
.lang-option .lang-flag{font-size:1.15rem;line-height:1}
.lang-option .check-icon{margin-left:auto;width:14px;height:14px;opacity:0;color:var(--accent)}
.lang-option.active .check-icon{opacity:1}

/* ── BURGER ──────────────────────────────── */
.nav__burger{display:none;width:40px;height:40px;border-radius:50%;border:1px solid var(--border-color);color:var(--text-secondary);flex-direction:column;gap:5px;justify-content:center;align-items:center}
.nav__burger span{display:block;width:18px;height:1.5px;background:currentColor;transition:transform .3s,opacity .3s}
.nav__burger.active span:nth-child(1){transform:translateY(6.5px) rotate(45deg)}.nav__burger.active span:nth-child(2){opacity:0}.nav__burger.active span:nth-child(3){transform:translateY(-6.5px) rotate(-45deg)}
@media(max-width:768px){
  .nav__burger{display:flex}
  .nav__links{position:fixed;top:var(--nav-height);left:0;right:0;background:color-mix(in srgb,var(--bg-primary) 95%,transparent);backdrop-filter:blur(24px);flex-direction:column;padding:32px 24px;gap:24px;transform:translateY(-120%);transition:transform .5s var(--ease-out-expo);border-bottom:1px solid var(--border-color);z-index:999}
  .nav__links.open{transform:translateY(0)}.nav__links a{font-size:1.1rem}
}

/* ── SHARED LAYOUT ───────────────────────── */
.container{width:100%;max-width:var(--content-max);margin:0 auto;padding:0 clamp(20px,4vw,48px)}
section{padding:var(--section-pad) 0;position:relative}
.section-label{font-family:var(--font-display);font-size:.75rem;font-weight:600;text-transform:uppercase;letter-spacing:.15em;color:var(--accent);margin-bottom:16px;display:flex;align-items:center;gap:12px}
.section-label::before{content:'';width:24px;height:1px;background:var(--accent)}
.section-title{font-family:var(--font-display);font-size:clamp(2rem,4vw,3rem);font-weight:700;letter-spacing:-.03em;line-height:1.15;margin-bottom:24px}
.section-desc{font-size:1.05rem;color:var(--text-secondary);max-width:560px;line-height:1.7}
.reveal{opacity:0;transform:translateY(40px);transition:opacity .8s var(--ease-out-expo),transform .8s var(--ease-out-expo)}.reveal.visible{opacity:1;transform:translateY(0)}

/* ── HERO ────────────────────────────────── */
.hero{min-height:100vh;display:flex;align-items:center;position:relative;overflow:hidden;padding-top:var(--nav-height)}
.hero::before{content:'';position:absolute;inset:0;background:var(--gradient-hero);pointer-events:none}
.hero__grid{position:absolute;inset:0;background-image:linear-gradient(var(--border-color) 1px,transparent 1px),linear-gradient(90deg,var(--border-color) 1px,transparent 1px);background-size:60px 60px;mask-image:radial-gradient(ellipse 70% 50% at 50% 40%,black 20%,transparent 70%);-webkit-mask-image:radial-gradient(ellipse 70% 50% at 50% 40%,black 20%,transparent 70%);opacity:.5}
.hero__orb{position:absolute;width:clamp(300px,40vw,600px);aspect-ratio:1;border-radius:50%;background:radial-gradient(circle at 30% 30%,var(--accent-glow),transparent 70%);filter:blur(80px);top:10%;right:-5%;animation:orbFloat 12s ease-in-out infinite;pointer-events:none}
@keyframes orbFloat{0%,100%{transform:translate(0,0) scale(1)}33%{transform:translate(-30px,20px) scale(1.05)}66%{transform:translate(15px,-25px) scale(.97)}}
.hero__content{position:relative;z-index:1}
.hero__tag{display:inline-flex;align-items:center;gap:8px;background:var(--accent-dim);border:1px solid color-mix(in srgb,var(--accent) 20%,transparent);border-radius:100px;padding:8px 18px;font-size:.8rem;font-weight:500;color:var(--accent);margin-bottom:32px;opacity:0;animation:fadeUp .8s var(--ease-out-expo) .2s forwards}
.hero__tag .dot{width:6px;height:6px;background:var(--accent);border-radius:50%;animation:pulse 2s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.5;transform:scale(.8)}}
.hero__name{font-family:var(--font-display);font-size:clamp(3rem,8vw,6.5rem);font-weight:800;letter-spacing:-.04em;line-height:.95;margin-bottom:24px;opacity:0;animation:fadeUp .8s var(--ease-out-expo) .35s forwards}.hero__name .accent{color:var(--accent)}
.hero__tagline{font-size:clamp(1.05rem,2vw,1.3rem);font-weight:300;color:var(--text-secondary);max-width:520px;line-height:1.6;margin-bottom:48px;opacity:0;animation:fadeUp .8s var(--ease-out-expo) .5s forwards}
.hero__actions{display:flex;gap:16px;flex-wrap:wrap;opacity:0;animation:fadeUp .8s var(--ease-out-expo) .65s forwards}
@keyframes fadeUp{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}
.btn{display:inline-flex;align-items:center;gap:8px;padding:14px 32px;border-radius:100px;font-weight:600;font-size:.9rem;transition:all .35s var(--ease-out-expo);position:relative;overflow:hidden}.btn svg{width:16px;height:16px}
.btn--primary{background:var(--accent);color:var(--bg-primary)}.btn--primary:hover{transform:translateY(-2px);box-shadow:0 8px 30px var(--accent-glow)}
.btn--ghost{border:1px solid var(--border-color);color:var(--text-primary)}.btn--ghost:hover{border-color:var(--accent);color:var(--accent);background:var(--accent-dim);transform:translateY(-2px)}
.hero__scroll{position:absolute;bottom:40px;left:50%;transform:translateX(-50%);display:flex;flex-direction:column;align-items:center;gap:8px;color:var(--text-tertiary);font-size:.7rem;text-transform:uppercase;letter-spacing:.1em;animation:fadeUp .8s var(--ease-out-expo) 1s forwards;opacity:0}
.hero__scroll .line{width:1px;height:40px;background:linear-gradient(to bottom,var(--accent),transparent);animation:scrollLine 2s ease-in-out infinite}
@keyframes scrollLine{0%{transform:scaleY(0);transform-origin:top}50%{transform:scaleY(1);transform-origin:top}50.01%{transform-origin:bottom}100%{transform:scaleY(0);transform-origin:bottom}}

/* ── SKILLS ──────────────────────────────── */
.skills__grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(340px,1fr));gap:24px}
.skill-group{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius);padding:32px;transition:border-color .3s,box-shadow .3s,transform .35s var(--ease-out-expo)}.skill-group:hover{border-color:var(--border-hover);box-shadow:0 10px 44px rgba(0,0,0,.35);transform:translateY(-4px)}
.skill-group__icon{width:44px;height:44px;border-radius:var(--radius-sm);background:var(--accent-dim);display:grid;place-items:center;color:var(--accent);margin-bottom:20px}.skill-group__icon svg{width:22px;height:22px}
.skill-group__title{font-family:var(--font-display);font-size:1.15rem;font-weight:600;margin-bottom:20px}
.skill-item{margin-bottom:16px}.skill-item:last-child{margin-bottom:0}
.skill-item__header{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}
.skill-item__name{font-size:.9rem;font-weight:500}.skill-item__pct{font-size:.75rem;color:var(--text-tertiary);font-variant-numeric:tabular-nums}
.skill-bar{height:4px;background:var(--skill-track);border-radius:4px;overflow:hidden}
.skill-bar__fill{height:100%;background:var(--accent);border-radius:4px;width:0;transition:width 1.2s var(--ease-out-expo)}

/* ── TIMELINE ────────────────────────────── */
.timeline{position:relative;padding-left:32px}
.timeline::before{content:'';position:absolute;left:0;top:8px;bottom:8px;width:1px;background:linear-gradient(to bottom,var(--accent),var(--border-color))}
.timeline-item{position:relative;margin-bottom:48px}.timeline-item:last-child{margin-bottom:0}
.timeline-item::before{content:'';position:absolute;left:-36px;top:8px;width:9px;height:9px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px var(--accent-dim)}
.timeline-item__date{font-size:.8rem;font-weight:600;color:var(--accent);text-transform:uppercase;letter-spacing:.05em;margin-bottom:8px}
.timeline-item__title{font-family:var(--font-display);font-size:1.25rem;font-weight:600;margin-bottom:4px}
.timeline-item__company{font-size:.95rem;color:var(--text-secondary);margin-bottom:12px}
.timeline-item__desc{font-size:.9rem;color:var(--text-secondary);line-height:1.7;max-width:540px}

/* ── TAGS ────────────────────────────────── */
.tag{font-size:.75rem;font-weight:500;padding:4px 12px;border-radius:100px;background:var(--accent-dim);color:var(--accent);border:1px solid color-mix(in srgb,var(--accent) 15%,transparent)}
.tag-list{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}

/* ── FOOTER ──────────────────────────────── */
.footer{border-top:1px solid var(--border-color);padding:32px 0}.footer__inner{display:flex;justify-content:space-between;align-items:center}.footer__copy{font-size:.8rem;color:var(--text-tertiary)}.footer__links{display:flex;gap:20px}.footer__links a{font-size:.8rem;color:var(--text-tertiary);transition:color .3s}.footer__links a:hover{color:var(--accent)}
@media(max-width:540px){.footer__inner{flex-direction:column;gap:12px;text-align:center}.skills__grid{grid-template-columns:1fr}}

/* ── SCROLLBAR ───────────────────────────── */
::-webkit-scrollbar{width:8px}::-webkit-scrollbar-track{background:var(--bg-primary)}::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--text-tertiary)}

/* ── ENHANCEMENTS ────────────────────────── */

/* Scroll progress bar */
.scroll-progress{position:fixed;top:0;left:0;height:2px;width:0;background:var(--accent);box-shadow:0 0 12px var(--accent-glow),0 0 4px var(--accent);z-index:10000;pointer-events:none;transition:width .08s linear}

/* Hero name glow pulse */
.hero__name{animation:fadeUp .8s var(--ease-out-expo) .35s forwards,nameGlow 7s ease-in-out 2s infinite}
@keyframes nameGlow{0%,100%{text-shadow:none}50%{text-shadow:0 0 80px var(--accent-glow),0 0 120px rgba(0,229,191,.1)}}

/* Second ambient orb */
.hero__orb2{position:absolute;width:clamp(160px,20vw,360px);aspect-ratio:1;border-radius:50%;background:radial-gradient(circle at 70% 70%,var(--accent-glow),transparent 70%);filter:blur(72px);bottom:-5%;left:-8%;animation:orbFloat2 19s ease-in-out infinite;pointer-events:none}
@keyframes orbFloat2{0%,100%{transform:translate(0,0) scale(1)}40%{transform:translate(28px,-22px) scale(1.07)}72%{transform:translate(-14px,20px) scale(.94)}}

/* Particle field */
.hero__particles{position:absolute;inset:0;overflow:hidden;pointer-events:none;z-index:0}
.particle{position:absolute;border-radius:50%;background:var(--accent);animation:particleFloat var(--dur,7s) ease-in-out var(--del,0s) infinite}
@keyframes particleFloat{0%,100%{transform:translateY(0) translateX(0) scale(1);opacity:.1}50%{transform:translateY(-44px) translateX(6px) scale(1.4);opacity:.38}}

/* Skill bar shimmer after fill */
.skill-bar__fill{position:relative;overflow:hidden}
.skill-bar__fill.shimmer-done::after{content:'';position:absolute;inset:0;background:linear-gradient(90deg,transparent,rgba(255,255,255,.48) 50%,transparent);animation:barShimmer 1s ease-out forwards}
@keyframes barShimmer{from{transform:translateX(-100%)}to{transform:translateX(200%)}}

/* Active nav link indicator */
.nav__links a.is-active{color:var(--text-primary)}.nav__links a.is-active::after{width:100%}

/* Timeline dot ripple */
.timeline-item::after{content:'';position:absolute;left:-40px;top:4px;width:17px;height:17px;border-radius:50%;border:1.5px solid var(--accent);opacity:0;animation:dotRipple 3.5s ease-out 1.4s infinite;pointer-events:none}
@keyframes dotRipple{0%{transform:scale(1);opacity:.65}100%{transform:scale(2.8);opacity:0}}

/* Tag lift on hover */
.tag{transition:background .25s,transform .25s,box-shadow .25s}.tag:hover{transform:translateY(-2px);box-shadow:0 4px 14px var(--accent-glow)}

/* Section label line-draw on reveal */
.reveal:not(.visible) .section-label::before,.reveal-left:not(.visible) .section-label::before,.reveal-right:not(.visible) .section-label::before{width:0}
.reveal.visible .section-label::before,.reveal-left.visible .section-label::before,.reveal-right.visible .section-label::before{width:24px;transition:width .7s var(--ease-out-expo) .25s}

/* Directional reveal variants */
.reveal-left{opacity:0;transform:translateX(-52px);transition:opacity .85s var(--ease-out-expo),transform .85s var(--ease-out-expo)}.reveal-left.visible{opacity:1;transform:none}
.reveal-right{opacity:0;transform:translateX(52px);transition:opacity .85s var(--ease-out-expo),transform .85s var(--ease-out-expo)}.reveal-right.visible{opacity:1;transform:none}

/* Emoji cross-platform */
img.emoji{display:inline-block;height:1.2em;width:1.2em;margin:0 .05em 0 .1em;vertical-align:-0.1em}