:root{
    --bg:#f6f8fc;
    --surface:#fff;
    --text:#111827;
    --muted:#5f6b7a;
    --accent:#3157ff;
    --accent-dark:#1f3ecb;
    --border:#dfe4ee;
    --dark:#0e1730;
    --radius:20px;
    --shadow:0 20px 60px rgba(26,40,79,.1)
}
*{
    box-sizing:border-box
}
html{
    scroll-behavior:smooth
}
body{
    margin:0;
    font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
    color:var(--text);
    background:var(--surface);
    line-height:1.65
}
a{
    color:inherit;
    text-decoration:none
}
.container{
    width:min(1140px,calc(100% - 40px));
    margin-inline:auto
}
.narrow{
    width:min(820px,calc(100% - 40px))
}
.site-header{
    position:sticky;
    top:0;
    z-index:50;
    background:rgba(255,255,255,.92);
    backdrop-filter:blur(16px);
    border-bottom:1px solid rgba(223,228,238,.8)
}
.nav-wrap{
    min-height:76px;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:24px
}
.brand{
    font-size:1.25rem;
    font-weight:800;
    letter-spacing:-.04em
}
.brand span{
    color:var(--accent)
}
.main-nav{
    display:flex;
    align-items:center;
    gap:24px;
    font-weight:600;
    font-size:.95rem
}
.menu-toggle{
    display:none;
    background:none;
    border:0;
    font-size:1.5rem
}
.btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    padding:14px 22px;
    border-radius:12px;
    border:1px solid var(--accent);
    background:var(--accent);
    color:#fff;
    font-weight:750;
    transition:.2s ease;
    cursor:pointer
}
.btn:hover{
    transform:translateY(-2px);
    background:var(--accent-dark)
}
.btn-small{
    padding:10px 15px
}
.btn-ghost{
    background:transparent;
    color:var(--accent)
}
.btn-ghost-light{
    background:transparent;
    border-color:rgba(255,255,255,.5);
    color:#fff
}
.hero{
    padding:92px 0 80px;
    background:radial-gradient(circle at 80% 15%,#e9edff 0,transparent 33%),var(--bg)
}
.hero-grid{
    display:grid;
    grid-template-columns:1.6fr .8fr;
    gap:60px;
    align-items:center
}
.eyebrow{
    color:var(--accent);
    font-size:.78rem;
    font-weight:850;
    letter-spacing:.16em;
    margin-bottom:12px
}
h1,h2,h3{
    line-height:1.12;
    letter-spacing:-.035em;
    margin-top:0
}
h1{
    font-size:clamp(2.7rem,6vw,5rem);
    max-width:930px;
    margin-bottom:24px
}
h2{
    font-size:clamp(2rem,4vw,3.3rem);
    margin-bottom:18px
}
h3{
    font-size:1.35rem
}
.hero-text,.section-intro{
    color:var(--muted);
    font-size:1.16rem;
    max-width:760px
}
.hero-actions{
    display:flex;
    gap:12px;
    flex-wrap:wrap;
    margin-top:30px
}
.hero-proof{
    display:flex;
    gap:12px;
    flex-wrap:wrap;
    margin-top:34px
}
.hero-proof span,.tag{
    border:1px solid var(--border);
    border-radius:999px;
    padding:7px 12px;
    background:rgba(255,255,255,.75);
    font-size:.84rem;
    font-weight:700
}
.profile-card{
    background:var(--surface);
    border:1px solid var(--border);
    border-radius:var(--radius);
    padding:32px;
    box-shadow:var(--shadow)
}
.avatar{
    width:72px;
    height:72px;
    display:grid;
    place-items:center;
    border-radius:20px;
    background:var(--dark);
    color:#fff;
    font-size:1.4rem;
    font-weight:850;
    margin-bottom:22px
}
.profile-card ul{
    padding-left:20px;
    color:var(--muted)
}
.section{
    padding:100px 0
}
.section-alt{
    background:var(--bg)
}
.cards{
    display:grid;
    grid-template-columns:repeat(2,1fr);
    gap:22px;
    margin-top:44px
}
.card{
    border:1px solid var(--border);
    border-radius:var(--radius);
    padding:30px;
    background:var(--surface);
    transition:.25s ease
}
.card:hover{
    transform:translateY(-5px);
    box-shadow:var(--shadow)
}
.card .tag{
    display:inline-block;
    color:var(--accent);
    margin-bottom:22px
}
.card p{
    color:var(--muted)
}
.card a,.text-link,.back-link{
    color:var(--accent);
    font-weight:750
}
.stack{
    font-size:.88rem;
    font-weight:700;
    color:var(--muted);
    margin:22px 0
}
.skills-grid{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:18px;
    margin-top:44px
}
.skill-block{
    background:var(--surface);
    border:1px solid var(--border);
    border-radius:16px;
    padding:24px
}
.skill-block p{
    color:var(--muted);
    margin-bottom:0
}
.about-grid{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:70px
}
.about-grid p{
    color:var(--muted);
    font-size:1.05rem
}
.cta-section{
    padding:20px 0 100px
}
.cta-box{
    background:var(--dark);
    color:#fff;
    border-radius:28px;
    padding:46px;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:30px
}
.cta-box h2{
    margin-bottom:0;
    max-width:720px
}
.project-hero{
    padding:90px 0 70px;
    background:var(--bg)
}
.project-hero h1{
    font-size:clamp(2.7rem,5vw,4.4rem)
}
.project-meta{
    display:flex;
    gap:18px;
    flex-wrap:wrap;
    margin-top:30px;
    color:var(--muted)
}
.project-content h2{
    margin-top:48px;
    font-size:2rem
}
.project-content p,.project-content li{
    color:var(--muted);
    font-size:1.05rem
}
.check-list{
    padding-left:22px
}
.result-box{
    background:var(--dark);
    color:#fff;
    padding:30px;
    border-radius:20px;
    margin-top:48px
}
.result-box h2{
    margin-top:0
}
.result-box p{
    color:#d8def2
}
.note{
    border-left:4px solid var(--accent);
    padding-left:16px;
    margin-top:35px
}
.contact-grid{
    display:grid;
    grid-template-columns:.8fr 1.2fr;
    gap:70px
}
.contact-form{
    display:grid;
    gap:18px
}
.contact-form label{
    display:grid;
    gap:7px;
    font-weight:700
}
input,textarea{
    width:100%;
    border:1px solid var(--border);
    border-radius:12px;
    padding:14px 15px;
    font:inherit;
    background:var(--surface)
}
.honeypot{
    position:absolute;
    left:-10000px
}
.alert{
    padding:14px 16px;
    border-radius:12px
}
.alert.success{
    background:#e7f8ef
}
.alert.error{
    background:#ffecec
}
.site-footer{
    background:var(--bg);
    padding:55px 0 28px;
    border-top:1px solid var(--border)
}
.footer-grid{
    display:flex;
    justify-content:space-between;
    gap:30px
}
.site-footer p{
    color:var(--muted)
}
.copyright{
    border-top:1px solid var(--border);
    margin-top:32px;
    padding-top:22px;
    color:var(--muted);
    font-size:.9rem
}
@media(max-width:900px){
    .hero-grid,.about-grid,.contact-grid{
        grid-template-columns:1fr
    }
    .skills-grid{
        grid-template-columns:repeat(2,1fr)
    }
    .cta-box{
        align-items:flex-start;
        flex-direction:column
    }
    .main-nav{
        display:none;
        position:absolute;
        top:76px;
        left:20px;
        right:20px;
        background:#fff;
        padding:22px;
        border:1px solid var(--border);
        border-radius:16px;
        box-shadow:var(--shadow);
        flex-direction:column;
        align-items:stretch
    }
    .main-nav.open{
        display:flex
    }
    .menu-toggle{
        display:block
    }
}
@media(max-width:640px){
    .cards,.skills-grid{
        grid-template-columns:1fr
    }
    .section{
        padding:72px 0
    }
    .hero{
        padding:70px 0 55px
    }
    .profile-card{
        padding:24px
    }
    .cta-box{
        padding:30px 24px
    }
    .footer-grid{
        flex-direction:column
    }
}
.contact-hero{
    margin:25px 0 35px;
    font-size:1.05rem;
    line-height:1.9;
}

.contact-hero a{
    color:inherit;
    text-decoration:none;
    font-weight:600;
    transition:0.2s;
}

.contact-hero a:hover{
    color:var(--accent);
}

.icon{
    display:inline-block;
    width:24px;
    color:var(--accent);
    font-weight:800;
    font-size:1.2rem;
}