:root {
  --bg:#fff; --surface:#f5f7f3; --dark:#080808; --dark-soft:#141414;
  --text:#20231f; --muted:#a7a7a7; --muted-dark:#62665f;
  --accent:#62ba1b; --accent-dark:#3f8e00; --border:#dfe3dc;
  --font:"Open Sans",system-ui,sans-serif; --section:clamp(4rem,8vw,7rem);
  --radius:.8rem; --shadow:0 20px 50px rgba(0,0,0,.14); --ease:220ms ease;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:6rem}
body{margin:0;background:var(--bg);color:var(--text);font:400 1rem/1.7 var(--font);-webkit-font-smoothing:antialiased}
h1,h2,h3,p,ul{margin-top:0;padding:0} ul{list-style:none} a{color:inherit;text-decoration:none} img{display:block;max-width:100%}
:focus-visible{outline:3px solid var(--accent);outline-offset:4px}
.container{width:min(100% - 2rem,1200px);margin-inline:auto}.flex{display:flex}.align-center{align-items:center}.justify-between{justify-content:space-between}.wrap{flex-wrap:wrap}.gap-24{gap:1.5rem}.text-center{text-align:center}
.section{padding-block:var(--section)}.dark-section{background:var(--dark);color:#fff}
.skip-link{position:fixed;top:1rem;left:1rem;z-index:100;padding:.7rem 1rem;background:#fff;transform:translateY(-160%)}.skip-link:focus{transform:none}
.section-kicker,.eyebrow{margin-bottom:.6rem;color:var(--accent);font-size:.78rem;font-weight:800;letter-spacing:.16em;text-transform:uppercase}
.section-title{margin-bottom:1rem;font-size:clamp(2rem,5vw,3.4rem);line-height:1.12;letter-spacing:-.045em}.section-lead{max-width:650px;margin:0 auto 3rem;color:var(--muted-dark)}

/* Fixed navigation retains the original dark header while handling small screens safely. */
header{height:0}.header-container{position:fixed;top:0;left:50%;z-index:20;width:min(calc(100% - 2rem),1200px);min-height:68px;padding:.6rem clamp(1rem,4vw,3.25rem);border-radius:0 0 var(--radius) var(--radius);background:rgba(27,27,27,.94);box-shadow:var(--shadow);transform:translateX(-50%);backdrop-filter:blur(12px)}
.header-items,.header-social-links{margin:0}.header-items a{position:relative;color:var(--muted);font-size:.94rem;font-weight:500;transition:color var(--ease)}.header-items a::after{content:"";position:absolute;right:0;bottom:-.45rem;left:0;height:2px;background:var(--accent);transform:scaleX(0);transition:transform var(--ease)}.header-items a:hover,.header-items a.active{color:#fff}.header-items a:hover::after,.header-items a.active::after{transform:scaleX(1)}
.header-social-links img{width:36px;height:36px;opacity:.75;transition:var(--ease)}.header-social-links a:hover img{opacity:1;transform:translateY(-2px)}

/* Hero keeps the original two-column portrait and green-accent visual language. */
.hero{overflow:hidden;padding:clamp(8rem,14vw,11rem) 0 5rem;background:var(--dark);color:#fff}.hero-wrapper{gap:clamp(2rem,7vw,6rem);margin-bottom:4rem}.hero-content{flex:1 1 54%}.hero-visual{flex:0 1 390px}
h1{margin-bottom:1.25rem;font-size:clamp(2.7rem,7vw,5.5rem);font-weight:800;line-height:.98;letter-spacing:-.06em}.hero-tagline{max-width:720px;margin-bottom:1rem;font-size:clamp(1.25rem,2.6vw,1.75rem);font-weight:500;line-height:1.35}.hero-summary{max-width:690px;margin-bottom:1.8rem;color:var(--muted)}
.cta-group{gap:.8rem;margin-top:1.5rem}.btn-connect{display:inline-flex;min-height:48px;align-items:center;justify-content:center;gap:.6rem;padding:.7rem 1.3rem;border:1px solid var(--accent-dark);border-radius:.5rem;background:var(--accent-dark);color:#fff;font-weight:700;line-height:1.2;transition:var(--ease)}.btn-connect:hover{background:var(--accent);box-shadow:0 10px 28px rgba(98,186,27,.3);transform:translateY(-2px)}.btn-connect:active{transform:scale(.98)}.btn-connect img{width:20px;filter:brightness(0) invert(1)}.btn-secondary{border-color:#3a3a3a;background:transparent}.btn-secondary:hover{border-color:var(--accent);background:rgba(98,186,27,.12)}.text-link{padding:.65rem .25rem;font-weight:600}.text-link:hover{color:var(--accent)}
.hero-img{position:relative}.hero-img::before{content:"";position:absolute;inset:8% -8% -5% 12%;border:1px solid var(--accent);border-radius:50%;opacity:.55}.hero-img img{position:relative;width:min(375px,78vw);aspect-ratio:1;border:6px solid #181818;border-radius:50%;object-fit:cover;box-shadow:var(--shadow)}.typing-container h2{min-height:2rem;margin:1.2rem 0 0;font-size:1rem;font-weight:500}.typing-container span::after{content:"|";color:var(--accent);animation:blink .75s infinite}@keyframes blink{50%{opacity:0}}
.worked-with h2{margin-bottom:1rem;font-size:.9rem;font-weight:500}.worked-with ul{gap:.6rem;margin:0}.worked-with span{display:inline-block;padding:.45rem .85rem;border:1px solid #393939;border-radius:999px;color:var(--muted);font-size:.85rem;font-weight:600;transition:var(--ease)}.worked-with span:hover{border-color:var(--accent);background:rgba(98,186,27,.13);color:#fff;transform:translateY(-2px)}

.about-grid{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(280px,.75fr);gap:clamp(2rem,7vw,6rem);align-items:start;margin-top:3rem}.about h3,.skill-card h3,.certificates h3{margin-bottom:1rem;font-size:clamp(1.3rem,3vw,1.8rem);line-height:1.3}.about .content p{max-width:720px;color:var(--muted-dark)}
.profile-card{position:sticky;top:6rem;padding:2rem;border:1px solid var(--border);border-radius:1rem;background:var(--surface);transition:var(--ease)}.profile-card:hover{border-color:var(--accent);transform:translateY(-3px)}.profile-facts{margin-bottom:1.5rem}.profile-facts li{display:flex;justify-content:space-between;gap:1rem;padding-block:.7rem;border-bottom:1px solid var(--border);font-size:.88rem}.profile-facts span{color:var(--muted-dark)}.profile-facts strong{text-align:right}
.impact-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem;margin:clamp(3rem,7vw,5rem) 0;padding:0}.impact-grid li{padding:1.4rem;border:1px solid var(--border);border-radius:1rem;background:#fff;box-shadow:0 10px 30px rgba(0,0,0,.05)}.impact-grid strong{display:block;color:var(--accent-dark);font-size:clamp(1.8rem,4vw,2.7rem);line-height:1.1}.impact-grid span{display:block;margin-top:.5rem;color:var(--muted-dark);font-size:.84rem;line-height:1.45}
.experience{max-width:900px;margin-top:clamp(3rem,7vw,6rem)}.timeline-item{position:relative;display:grid;grid-template-columns:20px 1fr;gap:1.25rem;padding-bottom:2.25rem}.timeline-item::before{content:"";position:absolute;top:15px;bottom:0;left:5px;width:1px;background:var(--border)}.timeline-item:last-child::before{display:none}.timeline-item>span{z-index:1;width:11px;height:11px;margin-top:.45rem;border:2px solid #fff;border-radius:50%;background:var(--accent-dark);box-shadow:0 0 0 3px rgba(98,186,27,.2)}.timeline-meta{margin-bottom:.15rem;color:var(--accent-dark);font-size:.8rem;font-weight:700;text-transform:uppercase}.timeline-item h3,.timeline-item p{margin-bottom:.45rem}.company-name{color:var(--muted-dark);font-weight:600}.experience-list{margin-top:1rem;padding-left:1.1rem;list-style:disc}.experience-list li{margin-bottom:.55rem;color:var(--muted-dark)}

.section-intro{max-width:720px;margin-bottom:3rem}.section-intro>p:last-child,.project-card>p{color:var(--muted)}.project-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1.25rem}.project-card{display:flex;min-height:320px;flex-direction:column;padding:clamp(1.4rem,3vw,2rem);border:1px solid #303030;border-radius:1rem;background:var(--dark-soft);transition:var(--ease)}.project-card:hover{border-color:var(--accent-dark);box-shadow:0 18px 45px rgba(0,0,0,.35);transform:translateY(-5px)}.project-number{margin-bottom:1.5rem;color:var(--accent)!important;font-size:.8rem;font-weight:800;letter-spacing:.12em}.project-card h3{margin-bottom:.8rem;font-size:1.45rem}.tech-tags{display:flex;flex-wrap:wrap;gap:.45rem;margin:auto 0 1.5rem;padding-top:1.2rem}.tech-tags li{padding:.25rem .6rem;border:1px solid #343434;border-radius:999px;color:#c8c8c8;font-size:.72rem;font-weight:600}.project-card>a,.project-status{align-self:flex-start;color:var(--accent);font-weight:700}.project-status{padding:.35rem .7rem;border:1px solid var(--accent-dark);border-radius:999px;font-size:.78rem}

.skills-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1.25rem}.skill-card{padding:2rem;border:1px solid var(--border);border-radius:1rem;background:var(--surface);transition:var(--ease)}.skill-card:hover{border-color:var(--accent);transform:translateY(-4px)}.skill-number{margin-bottom:1.3rem;color:var(--accent-dark);font-size:.78rem;font-weight:800}.skill-card li{position:relative;padding:.35rem 0 .35rem 1.1rem;color:var(--muted-dark)}.skill-card li::before{content:"";position:absolute;top:.95rem;left:0;width:5px;height:5px;border-radius:50%;background:var(--accent)}.learning-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1.25rem;margin-top:1.25rem}.certificates{padding:2rem;border-left:3px solid var(--accent-dark);background:#fafafa}.certificates li{margin-top:.45rem;color:var(--muted-dark)}
.contact-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(2rem,8vw,7rem);align-items:center}.contact-grid>div>p:not(.section-kicker){max-width:650px;color:var(--muted)}.contact-list{display:grid;margin:0;font-style:normal}.contact-list a{display:flex;justify-content:space-between;gap:1rem;padding:1.1rem 0;border-bottom:1px solid #2a2a2a;transition:var(--ease)}.contact-list a:hover{padding-left:.4rem;color:var(--accent)}.contact-list span{color:var(--muted);font-size:.8rem;text-transform:uppercase}.contact-list strong{text-align:right;word-break:break-word}
footer{padding-block:1.25rem;border-top:1px solid var(--border)}footer p{margin:0;color:var(--muted-dark);font-size:.82rem}.whatsapp-btn{position:fixed;right:1.5rem;bottom:1.5rem;z-index:30;display:grid;width:52px;height:52px;place-items:center;border:2px solid rgba(255,255,255,.65);border-radius:50%;background:#25d366;color:#fff;box-shadow:0 12px 30px rgba(0,0,0,.22);transition:var(--ease)}.whatsapp-btn:hover{transform:translateY(-3px) scale(1.04)}
@media(max-width:900px){html{scroll-padding-top:8.5rem}.header-container{flex-direction:column;gap:.5rem;padding-block:.65rem}.header-items{width:100%;gap:1.1rem;overflow-x:auto;padding-bottom:.3rem;scrollbar-width:none}.header-items::-webkit-scrollbar{display:none}.header-items a{white-space:nowrap;font-size:.82rem}.header-social-links{display:none}.hero-wrapper{flex-direction:column;align-items:flex-start}.hero-visual{align-self:center}.about-grid,.contact-grid{grid-template-columns:1fr}.profile-card{position:static}.impact-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.container{width:min(100% - 1.25rem,1200px)}.hero{padding-top:7.5rem}.hero-visual{width:100%}.hero-img img{margin-inline:auto}.cta-group .btn-connect{width:100%}.project-grid,.skills-grid,.learning-grid{grid-template-columns:1fr}.project-card{min-height:0}.impact-grid{grid-template-columns:1fr 1fr}.impact-grid li{padding:1rem}.contact-list a{flex-direction:column;gap:.2rem}.contact-list strong{text-align:left}footer .container{flex-direction:column;gap:.25rem;text-align:center}.whatsapp-btn{right:1rem;bottom:1rem}}
/* Respect visitor motion preferences; components remain readable without animation. */
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}