:root{
    --bg:#EDF3F8;
    --grid-line:#D7E4EE;
    --paper:#FFFFFF;
    --ink:#0E2233;
    --ink-soft:#3E5872;
    --ink-faint:#6683A0;
    --line:#C7D8E5;
    --blue:#0E7FBF;
    --blue-deep:#0A5A8C;
    --brass:#B8892E;
    --brass-ink:#5C4413;
    --navy:#0B1F32;
    --navy-2:#122F49;
    --card-ink:#DCEAF4;
    --ok:#2E9E5B;
    --r-sm:6px;
    --r-md:12px;
    --r-lg:18px;
    --mono:'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
    --display:'Space Grotesk', 'Segoe UI', sans-serif;
    --body:'IBM Plex Sans', 'Segoe UI', sans-serif;
    --container:1180px;
}

*,*::before,*::after{ box-sizing:border-box; }
html{ -webkit-text-size-adjust:100%; scroll-behavior:smooth; }
#experience,#skills,#connect{ scroll-margin-top:84px; }

@media (prefers-reduced-motion: reduce){
    html{ scroll-behavior:auto; }
    *,*::before,*::after{
        animation-duration:0.001ms !important;
        animation-iteration-count:1 !important;
        transition-duration:0.001ms !important;
        scroll-behavior:auto !important;
    }
}

body{
    margin:0;
    background-color:var(--bg);
    background-image:
            linear-gradient(var(--grid-line) 1px, transparent 1px),
            linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
    background-size:44px 44px;
    color:var(--ink);
    font-family:var(--body);
    font-size:16px;
    line-height:1.55;
    -webkit-font-smoothing:antialiased;
}
img,svg{ display:block; max-width:100%; }
a{ color:inherit; text-decoration:none; }
ul,ol{ margin:0; padding:0; list-style:none; }
h1,h2,h3,p,dl,dd{ margin:0; }
::selection{ background:var(--blue); color:#fff; }
.container{ max-width:var(--container); margin-inline:auto; padding-inline:clamp(1.25rem,5vw,3rem); }

.skip-link{
    position:absolute; left:-9999px; top:0;
    background:var(--navy); color:#fff; padding:0.75rem 1.25rem;
    border-radius:0 0 var(--r-sm) 0; z-index:100;
    font-family:var(--mono); font-size:0.85rem;
}
.skip-link:focus{ left:0; }
:focus-visible{ outline:2px solid var(--blue); outline-offset:3px; border-radius:2px; }

/* Nav */
.site-nav{
    position:sticky; top:0; z-index:50;
    background:rgba(237,243,248,0.86);
    backdrop-filter:blur(10px); -webkit-backdrop-filter:blur(10px);
    border-bottom:1px solid var(--line);
}
.site-nav__inner{
    max-width:var(--container); margin-inline:auto;
    padding-inline:clamp(1.25rem,5vw,3rem);
    display:flex; align-items:center; justify-content:space-between; height:64px;
}
.site-nav__brand{ display:flex; align-items:center; gap:0.65rem; }
.mark{
    display:inline-flex; align-items:center; justify-content:center;
    width:30px; height:30px; border-radius:var(--r-sm);
    background:var(--navy); color:var(--card-ink);
    font-family:var(--mono); font-size:0.7rem; font-weight:600; letter-spacing:0.02em;
}
.site-nav__name{ font-family:var(--display); font-weight:600; font-size:0.98rem; letter-spacing:-0.01em; }
.site-nav__links{ display:flex; gap:clamp(1rem,2.5vw,2rem); }
.site-nav__links a{
    font-family:var(--mono); font-size:0.82rem; color:var(--ink-soft);
    padding:0.35rem 0.1rem; border-bottom:2px solid transparent;
    transition:color .15s ease, border-color .15s ease;
}
.site-nav__links a:hover{ color:var(--blue-deep); border-color:var(--blue); }
@media (max-width:460px){
    .site-nav__name{ display:none; }
    .site-nav__links{ gap:0.9rem; }
}

/* Shared section head */
.section-head{ margin-bottom:clamp(1.5rem,4vw,2.25rem); }
.section-eyebrow{
    display:inline-block; font-family:var(--mono); font-size:0.78rem; color:var(--blue-deep);
    background:rgba(14,127,191,0.08); border:1px solid rgba(14,127,191,0.25);
    padding:0.2rem 0.55rem; border-radius:var(--r-sm); margin-bottom:0.75rem;
}
.section-title{ font-family:var(--display); font-weight:600; font-size:clamp(1.5rem,3vw,2rem); letter-spacing:-0.01em; }
main > section, footer{ padding-block:clamp(3rem,8vw,5.5rem); }

/* Hero */
.hero{
    max-width:var(--container); margin-inline:auto;
    padding-inline:clamp(1.25rem,5vw,3rem);
    padding-block:clamp(3.5rem,9vw,6rem) clamp(2.5rem,6vw,4rem);
    display:grid; grid-template-columns:1.2fr 0.9fr; gap:clamp(2rem,5vw,4rem);
    align-items:center;
}
.hero__kicker{ font-family:var(--mono); font-size:0.85rem; color:var(--ink-faint); margin-bottom:1rem; }
.hero__name{
    font-family:var(--display); font-weight:700; letter-spacing:-0.02em;
    font-size:clamp(2.75rem,7vw,4.5rem); line-height:0.98; margin-bottom:1.1rem;
}
.hero__role{
    font-family:var(--display); font-weight:500; font-size:clamp(1.1rem,2vw,1.35rem);
    color:var(--blue-deep); margin-bottom:1rem;
}
.hero__desc{ max-width:46ch; color:var(--ink-soft); font-size:1.02rem; margin-bottom:1.75rem; }
.hero__tags{ display:flex; flex-wrap:wrap; gap:0.6rem; }

.tag-link{
    font-family:var(--mono); font-size:0.8rem; color:var(--ink-soft);
    border:1px solid var(--line); background:var(--paper);
    padding:0.4rem 0.8rem; border-radius:999px; display:inline-block;
    transition:color .15s ease, border-color .15s ease, background .15s ease, transform .15s ease;
}
.tag-link:hover{ color:var(--paper); background:var(--blue-deep); border-color:var(--blue-deep); transform:translateY(-1px); }
.tag-link--lg{ font-size:0.88rem; padding:0.55rem 1.1rem; }

.hero__card{
    position:relative; background:var(--navy); border-radius:var(--r-lg);
    box-shadow:0 20px 45px -20px rgba(11,31,50,0.45);
    overflow:hidden;
}
.hero__card::before,.hero__card::after{
    content:""; position:absolute; width:14px; height:14px; opacity:0.55; pointer-events:none;
    background:
            linear-gradient(var(--brass) 1.5px, transparent 1.5px) center / 100% 1.5px no-repeat,
            linear-gradient(90deg, var(--brass) 1.5px, transparent 1.5px) center / 1.5px 100% no-repeat;
}
.hero__card::before{ top:10px; left:10px; }
.hero__card::after{ bottom:10px; right:10px; }
.hero__card-tab{
    font-family:var(--mono); font-size:0.78rem; color:var(--card-ink);
    background:var(--navy-2); padding:0.6rem 1.1rem; border-bottom:1px solid rgba(255,255,255,0.08);
}
.hero__card-body{ padding:1.25rem 1.3rem 1.5rem; }
.hero__card-row{
    display:grid; grid-template-columns:6.5rem 1fr; gap:0.75rem;
    font-family:var(--mono); font-size:0.82rem; padding-block:0.4rem;
    opacity:0; transform:translateY(6px); animation:cardline .5s ease forwards;
}
.hero__card-row:nth-child(1){ animation-delay:.05s; }
.hero__card-row:nth-child(2){ animation-delay:.15s; }
.hero__card-row:nth-child(3){ animation-delay:.25s; }
.hero__card-row:nth-child(4){ animation-delay:.35s; }
.hero__card-row:nth-child(5){ animation-delay:.45s; }
.hero__card-row:nth-child(6){ animation-delay:.55s; }
@keyframes cardline{ to{ opacity:1; transform:translateY(0); } }
@media (prefers-reduced-motion: reduce){
    .hero__card-row{ opacity:1; transform:none; animation:none; }
}
.hero__card-row dt{ color:var(--brass); font-weight:500; }
.hero__card-row dd{ color:var(--card-ink); word-break:break-word; }
.dot{ display:inline-block; width:7px; height:7px; border-radius:50%; background:var(--ok); margin-right:0.45rem; }

@media (max-width:820px){ .hero{ grid-template-columns:1fr; } }

/* Experience ledger */
.ledger{ position:relative; padding-left:clamp(1.5rem,4vw,2.5rem); border-left:2px solid var(--line); }
.ledger__item{ position:relative; padding-bottom:clamp(2rem,5vw,2.75rem); }
.ledger__item:last-child{ padding-bottom:0; }
.ledger__item::before{
    content:""; position:absolute; left:calc(-1 * clamp(1.5rem,4vw,2.5rem) - 6px); top:0.35rem;
    width:11px; height:11px; border-radius:50%; background:var(--paper); border:2px solid var(--blue-deep);
}
.ledger__meta{ display:flex; flex-wrap:wrap; align-items:center; gap:0.75rem; margin-bottom:0.5rem; }
.ledger__version{
    font-family:var(--mono); font-size:0.75rem; color:var(--brass-ink);
    background:rgba(184,137,46,0.15); border:1px solid rgba(184,137,46,0.35);
    padding:0.15rem 0.5rem; border-radius:var(--r-sm);
}
.ledger__range{ font-family:var(--mono); font-size:0.8rem; color:var(--ink-faint); }
.ledger__role{ font-family:var(--display); font-weight:600; font-size:1.3rem; margin-bottom:0.2rem; }
.ledger__org{ color:var(--ink-soft); font-size:0.95rem; margin-bottom:0.5rem; }
.ledger__desc{ color:var(--ink-soft); font-size:0.95rem; max-width:60ch; }

/* Skills */
.skills-grid{ display:grid; grid-template-columns:1fr 1fr; gap:clamp(1.25rem,3vw,1.75rem); align-items:start; }
.skill-card{
    background:var(--paper); border:1px solid var(--line); border-radius:var(--r-md);
    padding:clamp(1.25rem,3vw,1.75rem);
    transition:border-color .15s ease, transform .15s ease, box-shadow .15s ease;
}
.skill-card:hover{ border-color:var(--blue); box-shadow:0 12px 30px -18px rgba(14,34,51,0.25); transform:translateY(-2px); }
.skill-card__title{
    font-family:var(--mono); font-size:0.95rem; font-weight:600; letter-spacing:0.01em;
    padding-bottom:0.75rem; margin-bottom:0.9rem; border-bottom:1px solid var(--line);
}
.skill-list__item{ padding-block:0.55rem; border-bottom:1px dashed var(--line); }
.skill-list__item:last-child{ border-bottom:none; }
.skill-row{ display:flex; align-items:center; justify-content:space-between; gap:0.75rem; }
.skill-name{ font-weight:500; font-size:0.96rem; }
.cert-badge{
    font-family:var(--mono); font-size:0.68rem; text-transform:uppercase; letter-spacing:0.04em;
    background:var(--brass); color:#2A1F0C; padding:0.18rem 0.45rem; border-radius:4px;
    flex-shrink:0; display:inline-block; transition:filter .15s ease;
}
.cert-badge:hover{ filter:brightness(1.08); }
.skill-sublist{ margin-top:0.5rem; padding-left:0.9rem; border-left:2px solid var(--line); }
.skill-sublist li{
    font-size:0.86rem; color:var(--ink-soft); padding-block:0.3rem;
    display:flex; align-items:center; justify-content:space-between; gap:0.5rem;
}
@media (max-width:720px){ .skills-grid{ grid-template-columns:1fr; } }

/* Footer */
footer#connect{ border-top:1px solid var(--line); }
.connect__lead{ color:var(--ink-soft); margin-bottom:1.5rem; }
.connect__tags{ display:flex; flex-wrap:wrap; gap:0.75rem; margin-bottom:2.5rem; }
.connect__copy{ font-family:var(--mono); font-size:0.8rem; color:var(--ink-faint); }