:root{--navy:#0a1330;--navy2:#111f4a;--blue:#2f6bff;--sky:#5ea0ff;--bg:#f5f8ff;--surface:#fff;--text:#14203f;--muted:#55627f;--line:#dfe7f7;--shadow:0 10px 30px rgba(20,40,100,.09);
--hd:'Sora','Segoe UI',system-ui,sans-serif;--bd:'Inter','Segoe UI',system-ui,sans-serif;
box-sizing:border-box;padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px);color-scheme:light}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){--bg:#0b1126;--surface:#121b3a;--text:#e8eeff;--muted:#a3b0d2;--line:#243258;--shadow:0 10px 30px rgba(0,0,0,.35);color-scheme:dark}}
:root[data-theme="dark"]{--bg:#0b1126;--surface:#121b3a;--text:#e8eeff;--muted:#a3b0d2;--line:#243258;--shadow:0 10px 30px rgba(0,0,0,.35);color-scheme:dark}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:calc(76px + env(safe-area-inset-top,0px))}
body{margin:0;font:400 1.05rem/1.65 var(--bd);background:var(--bg);color:var(--text);overflow-x:hidden}
img,svg{max-width:100%}
a{color:inherit;text-decoration:none}
h1,h2,h3{font-family:var(--hd);line-height:1.15;margin:0 0 .6em;letter-spacing:-.02em}
h2{font-size:clamp(1.8rem,4vw,2.7rem)}
p{margin:0 0 1em}
:focus-visible{outline:3px solid var(--sky);outline-offset:3px;border-radius:6px}
.wrap{width:min(1160px,100% - 2.4rem);margin-inline:auto}
section{padding:96px 0}
.sec-head{max-width:640px;margin-bottom:48px}
.sec-head p{color:var(--muted)}
.btn{display:inline-flex;align-items:center;gap:.5rem;padding:.9rem 1.5rem;border-radius:999px;font:600 1rem var(--bd);border:2px solid transparent;cursor:pointer;transition:transform .2s,box-shadow .2s,background .2s}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:linear-gradient(135deg,var(--blue),#1c4fe0);color:#fff;box-shadow:0 8px 22px rgba(47,107,255,.4)}
.btn-ghost{border-color:rgba(255,255,255,.4);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.1)}
.btn-sm{padding:.55rem 1.1rem;font-size:.92rem;background:transparent;border-color:var(--blue);color:var(--blue)}
.btn-sm:hover{background:var(--blue);color:#fff}
/* nav */
header{position:fixed;top:0;left:0;right:0;z-index:50;padding-top:env(safe-area-inset-top,0px);transition:background .3s,box-shadow .3s}
header.solid{background:rgba(10,19,48,.92);backdrop-filter:blur(12px);box-shadow:0 4px 20px rgba(0,0,0,.2)}
.nav{display:flex;align-items:center;justify-content:space-between;height:72px}
.logo{font:800 1.3rem var(--hd);color:#fff}.logo span{color:var(--sky)}
.links{display:flex;gap:1.8rem;align-items:center}
.links a{color:#dbe5ff;font-weight:500;font-size:.98rem}.links a:hover{color:#fff}
.links .btn{padding:.55rem 1.2rem;color:#fff}
.burger{display:none;background:none;border:0;color:#fff;cursor:pointer;padding:8px}
.burger svg{width:28px;height:28px}
/* hero */
.hero{position:relative;background:radial-gradient(1200px 600px at 80% 10%,#1b3b9a 0,transparent 60%),linear-gradient(160deg,var(--navy),var(--navy2));color:#fff;padding:150px 0 100px;overflow:hidden}
.hero .wrap{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
.hero h1{font-size:clamp(2.4rem,5.6vw,4.2rem);font-weight:800}
.hero h1 em{font-style:normal;background:linear-gradient(90deg,var(--sky),#9cc4ff);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p.sub{color:#c6d4f5;max-width:34em;font-size:1.12rem}
.cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.stage{position:relative;aspect-ratio:1;max-width:460px;margin-inline:auto;width:100%}
.portrait{position:absolute;inset:8%;border-radius:50%;background:linear-gradient(145deg,#2f6bff,#0e2a78);border:6px solid rgba(255,255,255,.14);overflow:hidden;box-shadow:0 30px 70px rgba(0,0,0,.45)}
.portrait svg{width:100%;height:100%}
.ring{position:absolute;inset:0;border-radius:50%;border:2px dashed rgba(94,160,255,.45);animation:spin 40s linear infinite}
.fl{position:absolute;width:58px;height:58px;border-radius:18px;display:grid;place-items:center;background:rgba(255,255,255,.12);backdrop-filter:blur(8px);border:1px solid rgba(255,255,255,.25);box-shadow:0 12px 30px rgba(0,0,0,.3);animation:float 6s ease-in-out infinite}
.fl svg{width:28px;height:28px;fill:#fff}
.fl:nth-child(3){top:2%;left:6%}.fl:nth-child(4){top:14%;right:0;animation-delay:-1.5s}.fl:nth-child(5){bottom:10%;left:0;animation-delay:-3s}.fl:nth-child(6){bottom:2%;right:10%;animation-delay:-4.5s}
.blob{position:absolute;border-radius:50%;filter:blur(70px);opacity:.35;pointer-events:none;animation:float 12s ease-in-out infinite}
.b1{width:340px;height:340px;background:var(--blue);top:-80px;left:-100px}.b2{width:300px;height:300px;background:#7a5cff;bottom:-100px;right:20%}
.note{font-size:.8rem;color:#9fb2e3;text-align:center;margin-top:10px}
.intro>*{animation:rise .8s both}.intro>*:nth-child(2){animation-delay:.1s}.intro>*:nth-child(3){animation-delay:.2s}.intro>*:nth-child(4){animation-delay:.3s}
@keyframes rise{from{opacity:0;transform:translateY(24px)}}
@keyframes float{50%{transform:translateY(-14px)}}
@keyframes spin{to{transform:rotate(360deg)}}
/* about */
.about{display:grid;grid-template-columns:.9fr 1.1fr;gap:56px;align-items:center}
.about-img{border-radius:28px;background:linear-gradient(145deg,var(--blue),var(--navy));aspect-ratio:4/5;overflow:hidden;box-shadow:var(--shadow);position:relative}
.about-img svg{width:100%;height:100%}
.about-img::after{content:"Replace with your photo";position:absolute;left:12px;bottom:12px;font-size:.75rem;color:#fff;background:rgba(0,0,0,.4);padding:3px 10px;border-radius:99px}
.about p{color:var(--muted)}
/* cards */
.grid{display:grid;gap:24px}
.g4{grid-template-columns:repeat(auto-fit,minmax(250px,1fr))}
.g3{grid-template-columns:repeat(auto-fit,minmax(290px,1fr))}
.card{background:var(--surface);border:1px solid var(--line);border-radius:24px;padding:30px;box-shadow:var(--shadow);transition:transform .3s,border-color .3s}
.card:hover{transform:translateY(-6px);border-color:var(--blue)}
.ico{width:56px;height:56px;border-radius:16px;display:grid;place-items:center;background:linear-gradient(135deg,var(--blue),var(--sky));margin-bottom:20px}
.ico svg{width:28px;height:28px;fill:none;stroke:#fff;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.card h3{font-size:1.2rem}
.card p{color:var(--muted);font-size:.97rem}
.card ul{list-style:none;padding:0;margin:0 0 22px}
.card li{padding:5px 0 5px 26px;font-size:.94rem;position:relative}
.card li::before{content:"";position:absolute;left:0;top:.8em;width:14px;height:14px;border-radius:50%;background:var(--blue) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M4 8.5l2.5 2.5L12 5.5' fill='none' stroke='white' stroke-width='2'/%3E%3C/svg%3E") center/100%;transform:translateY(-50%)}
.services{background:var(--surface)}
.services .card{background:var(--bg);display:flex;flex-direction:column}
.services .card .btn{margin-top:auto;align-self:flex-start}
/* why */
.why .card{padding:26px;display:flex;gap:18px;align-items:flex-start}
.why .ico{margin:0;flex:none}
.why h3{font-size:1.05rem;margin:0}
/* skills */
.skills{background:linear-gradient(160deg,var(--navy),var(--navy2));color:#fff}
.skills .sec-head p{color:#b9c8ee}
.sk-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:22px 48px}
.sk .row{display:flex;justify-content:space-between;font-weight:500;margin-bottom:8px}
.sk .row small{color:#9fb2e3;font-size:.85rem}
.bar{height:10px;background:rgba(255,255,255,.12);border-radius:99px;overflow:hidden}
.bar i{display:block;height:100%;width:0;border-radius:99px;background:linear-gradient(90deg,var(--blue),#8fc0ff);transition:width 1.4s cubic-bezier(.2,.8,.2,1)}
.skills .fine{color:#9fb2e3;font-size:.85rem;margin-top:28px}
/* portfolio */
.filters{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:32px}
.filters button{border:1px solid var(--line);background:var(--surface);color:var(--text);padding:.55rem 1.2rem;border-radius:99px;font:500 .95rem var(--bd);cursor:pointer;transition:.2s}
.filters button:hover{border-color:var(--blue)}
.filters button.on{background:var(--blue);border-color:var(--blue);color:#fff}
.proj{padding:0;overflow:hidden}
.proj .thumb{aspect-ratio:16/10;position:relative}
.proj .thumb svg{width:100%;height:100%;display:block}
.tag{position:absolute;top:12px;left:12px;background:rgba(10,19,48,.75);color:#fff;font-size:.74rem;padding:3px 10px;border-radius:99px}
.proj .body{padding:24px}
.proj .svc{font-size:.84rem;color:var(--blue);font-weight:600;margin-bottom:14px}
.proj.hide{display:none}
/* process */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative;counter-reset:s}
.steps::before{content:"";position:absolute;top:28px;left:12%;right:12%;height:3px;background:linear-gradient(90deg,var(--blue),var(--sky));border-radius:3px}
.step{text-align:center;position:relative;counter-increment:s}
.step .n{width:58px;height:58px;border-radius:50%;background:var(--blue);color:#fff;font:800 1.2rem var(--hd);display:grid;place-items:center;margin:0 auto 18px;box-shadow:0 0 0 8px var(--bg);position:relative}
.step .n::before{content:counter(s)}
.step p{color:var(--muted);font-size:.95rem;padding:0 8px}
/* testimonials */
.testi{background:var(--surface)}
.testi .card{background:var(--bg)}
.stars{color:#f5b301;letter-spacing:3px;margin-bottom:10px}
.who{display:flex;gap:14px;align-items:center;margin-top:18px}
.av{width:48px;height:48px;border-radius:50%;background:linear-gradient(135deg,var(--blue),var(--sky));display:grid;place-items:center;color:#fff;font:700 1rem var(--hd)}
.who b{display:block;font-size:.97rem}.who span{font-size:.85rem;color:var(--muted)}
.ph{font-size:.82rem;color:var(--muted);margin-top:22px}
/* blog */
.post .meta{font-size:.82rem;color:var(--blue);font-weight:600;margin-bottom:8px}
/* contact */
.contact{background:linear-gradient(160deg,var(--navy),var(--navy2));color:#fff}
.contact .wrap{display:grid;grid-template-columns:.9fr 1.1fr;gap:56px}
.contact p{color:#c0cdf0}
.chips{display:flex;flex-direction:column;gap:12px;margin-top:28px}
.chip{display:flex;align-items:center;gap:14px;padding:14px 18px;border-radius:16px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);transition:background .2s}
.chip:hover{background:rgba(255,255,255,.16)}
.chip svg{width:22px;height:22px;fill:#fff;flex:none}
form{background:var(--surface);color:var(--text);border-radius:28px;padding:34px;display:grid;gap:18px;box-shadow:0 30px 60px rgba(0,0,0,.3)}
label{font-weight:600;font-size:.92rem;display:grid;gap:6px}
input,select,textarea{font:inherit;padding:.8rem 1rem;border:1.5px solid var(--line);border-radius:14px;background:var(--bg);color:var(--text);width:100%}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 4px rgba(47,107,255,.2)}
textarea{min-height:130px;resize:vertical}
.two{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.hp{position:absolute;left:-9999px;height:0;overflow:hidden}
#msg{font-size:.95rem;min-height:1.4em;font-weight:500}
#msg.err{color:#d93a3a}#msg.ok{color:#16914f}
/* footer */
footer{background:#060d24;color:#aab8de;padding:70px 0 0;font-size:.95rem}
.fgrid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px}
footer h4{color:#fff;font:700 1rem var(--hd);margin:0 0 14px}
footer ul{list-style:none;padding:0;margin:0}footer li{margin-bottom:8px}
footer a:hover{color:#fff}
.soc{display:flex;gap:10px;margin-top:16px}
.soc a{width:40px;height:40px;border-radius:12px;background:rgba(255,255,255,.08);display:grid;place-items:center}
.soc a:hover{background:var(--blue)}
.soc svg{width:18px;height:18px;fill:#fff}
.copy{border-top:1px solid rgba(255,255,255,.1);margin-top:50px;padding:22px 0;text-align:center;font-size:.88rem}
.top{position:fixed;right:18px;bottom:calc(18px + env(safe-area-inset-bottom,0px));width:46px;height:46px;border-radius:50%;border:0;background:var(--blue);color:#fff;cursor:pointer;box-shadow:0 8px 20px rgba(47,107,255,.45);opacity:0;pointer-events:none;transition:opacity .3s;z-index:40;font-size:1.2rem}
.top.show{opacity:1;pointer-events:auto}
/* responsive */
@media(max-width:960px){
 .hero .wrap,.about,.contact .wrap{grid-template-columns:1fr}
 .hero{padding-top:120px}
 .stage{max-width:340px}
 .steps{grid-template-columns:1fr;gap:0;padding-left:8px}
 .steps::before{top:0;bottom:0;left:36px;right:auto;width:3px;height:auto}
 .step{text-align:left;display:grid;grid-template-columns:58px 1fr;gap:0 22px;padding-bottom:30px}
 .step .n{margin:0;grid-row:span 2}.step h3{margin:6px 0 4px}.step p{padding:0}
 .fgrid{grid-template-columns:1fr 1fr}
 .burger{display:block}
 .links{position:fixed;inset:calc(72px + env(safe-area-inset-top,0px)) 0 auto 0;background:rgba(10,19,48,.98);flex-direction:column;padding:24px;gap:1.2rem;transform:translateY(-130%);transition:transform .3s}
 .links.open{transform:none}
}
@media(max-width:560px){section{padding:72px 0}.two,.fgrid{grid-template-columns:1fr}form{padding:24px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}.bar i{width:var(--w)!important}}