/* ============================================================
   Bismark Wiafe Bimpong — portfolio
   Direction: "Scholar & Builder" — editorial warmth + data rigor
   Display: Fraunces (serif)  ·  Body: Inter  ·  Data/labels: JetBrains Mono
   Palette: warm paper · deep pine · academic gold · ink
   ============================================================ */
:root{
  --paper:#f8f6f1; --paper-2:#fffdf8; --card:#ffffff;
  --ink:#15201b; --ink-soft:#566159; --ink-faint:#8a938b;
  --pine:#14543b; --pine-deep:#0d3a28; --pine-soft:#e6efe9;
  --gold:#bd8b1e; --gold-soft:#f4ead0; --gold-deep:#8f6610;
  --line:#e4e0d6; --line-strong:#d2cdbf;
  --maxw:1140px; --r:16px;
  --shadow:0 1px 2px rgba(13,58,40,.05), 0 14px 40px rgba(13,58,40,.07);
  --shadow-sm:0 1px 2px rgba(13,58,40,.06), 0 6px 18px rgba(13,58,40,.05);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0; background:var(--paper); color:var(--ink);
  font-family:'Inter',system-ui,sans-serif; font-size:17px; line-height:1.62;
  -webkit-font-smoothing:antialiased;}
img{max-width:100%; display:block}
a{color:var(--pine); text-decoration:none}
a:hover{text-decoration:underline}

h1,h2,h3{font-family:'Fraunces',Georgia,serif; font-weight:600; line-height:1.05;
  letter-spacing:-.012em; margin:0 0 .45em}
h1{font-size:clamp(2.4rem,5.6vw,4.1rem); font-weight:600}
h2{font-size:clamp(1.7rem,3.6vw,2.6rem)}
h3{font-size:1.25rem; letter-spacing:-.005em}
p{margin:0 0 1em}
.wrap{max-width:var(--maxw); margin:0 auto; padding:0 24px}
.section{padding:84px 0}
.section.tight{padding:56px 0}

/* eyebrow / mono labels — the "data" voice */
.eyebrow{font-family:'JetBrains Mono',monospace; font-size:.74rem; font-weight:600;
  letter-spacing:.12em; text-transform:uppercase; color:var(--pine);
  display:inline-flex; align-items:center; gap:.6em; margin-bottom:1rem}
.eyebrow::before{content:""; width:26px; height:1.5px; background:var(--gold)}
.muted{color:var(--ink-soft)}
.lead{font-size:1.18rem; color:var(--ink-soft); max-width:60ch}

/* buttons */
.btn{display:inline-flex; align-items:center; gap:.55em; font-family:inherit; font-weight:600;
  font-size:.97rem; border:none; border-radius:999px; padding:.78em 1.4em; cursor:pointer;
  background:var(--pine); color:#fff; transition:transform .08s, background .18s; text-decoration:none}
.btn:hover{background:var(--pine-deep); text-decoration:none}
.btn:active{transform:translateY(1px)}
.btn.gold{background:var(--gold); color:#231a05}
.btn.gold:hover{background:var(--gold-deep)}
.btn.ghost{background:transparent; color:var(--pine); box-shadow:inset 0 0 0 1.5px var(--line-strong)}
.btn.ghost:hover{background:#fff; box-shadow:inset 0 0 0 1.5px var(--pine)}
.btn.sm{padding:.5em 1em; font-size:.86rem}

/* nav */
.nav{position:sticky; top:0; z-index:50; background:rgba(248,246,241,.82);
  backdrop-filter:blur(10px); border-bottom:1px solid var(--line)}
.nav .wrap{display:flex; align-items:center; justify-content:space-between; height:66px}
.logo{font-family:'Fraunces',serif; font-weight:600; font-size:1.15rem; color:var(--ink); display:flex; align-items:center; gap:.5em}
.logo .mark{display:grid; place-items:center; width:34px; height:34px; border-radius:9px;
  background:var(--pine); color:#fff; font-family:'JetBrains Mono',monospace; font-size:.8rem; font-weight:700}
.nav nav{display:flex; gap:4px; align-items:center}
.nav nav a{font-size:.9rem; font-weight:500; color:var(--ink-soft); padding:.45em .7em; border-radius:8px}
.nav nav a:hover{color:var(--pine); background:var(--pine-soft); text-decoration:none}
.nav .btn{margin-left:6px}
@media(max-width:760px){ .nav nav a:not(.btn){display:none} }

/* hero */
.hero{padding:64px 0 36px}
.hero-grid{display:grid; gap:44px; align-items:center}
@media(min-width:880px){ .hero-grid{grid-template-columns:1.15fr .85fr} }
.hero h1 .accent{color:var(--pine); font-style:italic}
.hero .cta{display:flex; gap:12px; flex-wrap:wrap; margin-top:26px}
.hero-portrait{position:relative}
.hero-portrait img{border-radius:20px; box-shadow:var(--shadow); width:100%;
  object-fit:cover; aspect-ratio:3/4}
.hero-portrait::before{content:""; position:absolute; inset:-14px -14px 22px 22px;
  border-radius:24px; background:
    repeating-linear-gradient(45deg, transparent 0 9px, rgba(189,139,30,.16) 9px 10px);
  z-index:-1}
.hero-portrait .tag{position:absolute; left:-12px; bottom:24px; background:var(--card);
  border:1px solid var(--line); border-radius:12px; padding:10px 14px; box-shadow:var(--shadow-sm);
  font-family:'JetBrains Mono',monospace; font-size:.72rem; line-height:1.5}
.hero-portrait .tag b{color:var(--pine)}

/* credential strip */
.creds{display:flex; flex-wrap:wrap; gap:0; margin-top:30px; border-top:1px solid var(--line)}
.cred{padding:16px 18px 4px 0; margin-right:18px; border-right:1px solid var(--line)}
.cred:last-child{border-right:none; margin-right:0}
.cred .n{font-family:'Fraunces',serif; font-size:1.55rem; color:var(--pine); line-height:1}
.cred .l{font-size:.8rem; color:var(--ink-soft)}

/* focus cards */
.focus-grid{display:grid; gap:16px}
@media(min-width:640px){ .focus-grid{grid-template-columns:repeat(2,1fr)} }
@media(min-width:980px){ .focus-grid{grid-template-columns:repeat(4,1fr)} }
.focus{background:var(--card); border:1px solid var(--line); border-radius:var(--r); padding:22px;
  box-shadow:var(--shadow-sm); transition:transform .15s, box-shadow .15s}
.focus:hover{transform:translateY(-3px); box-shadow:var(--shadow)}
.focus .ix{font-family:'JetBrains Mono',monospace; font-size:.72rem; color:var(--gold-deep); letter-spacing:.1em}
.focus h3{margin:.5em 0 .3em; font-size:1.1rem}
.focus p{font-size:.92rem; color:var(--ink-soft); margin:0}

/* generic card / grid */
.card{background:var(--card); border:1px solid var(--line); border-radius:var(--r); box-shadow:var(--shadow-sm)}
.grid{display:grid; gap:22px}
.cols-2{grid-template-columns:1fr}
.cols-3{grid-template-columns:1fr}
@media(min-width:780px){ .cols-2{grid-template-columns:1fr 1fr} .cols-3{grid-template-columns:repeat(3,1fr)} }

/* about */
.about-grid{display:grid; gap:40px; align-items:start}
@media(min-width:860px){ .about-grid{grid-template-columns:.8fr 1.2fr} }
.about-img{border-radius:18px; box-shadow:var(--shadow); aspect-ratio:4/5; object-fit:cover; object-position:center top}
.facts{margin-top:18px; border-top:1px solid var(--line)}
.fact{display:flex; gap:14px; padding:13px 0; border-bottom:1px solid var(--line); font-size:.95rem}
.fact .y{font-family:'JetBrains Mono',monospace; font-size:.8rem; color:var(--gold-deep); min-width:88px; padding-top:2px}
.fact b{display:block}

/* projects */
.proj{display:flex; flex-direction:column; padding:26px; height:100%}
.proj .kicker{font-family:'JetBrains Mono',monospace; font-size:.72rem; letter-spacing:.1em; color:var(--gold-deep); text-transform:uppercase}
.proj h3{margin:.4em 0 .35em; font-size:1.35rem}
.proj p{font-size:.94rem; color:var(--ink-soft); flex:1}
.tags{display:flex; flex-wrap:wrap; gap:6px; margin:12px 0 16px}
.tag{font-family:'JetBrains Mono',monospace; font-size:.7rem; padding:.3em .6em; border-radius:6px;
  background:var(--pine-soft); color:var(--pine-deep)}
.proj .links{display:flex; gap:10px; align-items:center; flex-wrap:wrap}

/* data viz */
.viz-tabs{display:flex; gap:6px; flex-wrap:wrap; margin:8px 0 24px}
.viz-tab{font-family:'JetBrains Mono',monospace; font-size:.8rem; font-weight:600; border:1px solid var(--line-strong);
  background:var(--card); color:var(--ink-soft); padding:.55em 1em; border-radius:999px; cursor:pointer}
.viz-tab.active{background:var(--pine); color:#fff; border-color:var(--pine)}
.viz-panel{display:none}
.viz-panel.active{display:block; animation:fade .4s ease}
@keyframes fade{from{opacity:0; transform:translateY(6px)} to{opacity:1; transform:none}}
.chart-card{padding:24px}
.chart-head{margin-bottom:8px}
.chart-head h3{margin-bottom:.2em}
.chart-note{font-family:'JetBrains Mono',monospace; font-size:.68rem; color:var(--ink-faint); margin-top:10px}
.chart-box{position:relative; height:300px}
.chart-box.tall{height:340px}

/* qualitative themes */
.theme{padding:16px 0; border-bottom:1px solid var(--line)}
.theme:last-child{border-bottom:none}
.theme .top{display:flex; justify-content:space-between; align-items:baseline; gap:12px; margin-bottom:7px}
.theme .name{font-weight:600; font-size:1.02rem}
.theme .count{font-family:'JetBrains Mono',monospace; font-size:.78rem; color:var(--pine)}
.theme .bar{height:8px; border-radius:99px; background:var(--pine-soft); overflow:hidden}
.theme .bar>span{display:block; height:100%; background:linear-gradient(90deg,var(--pine),var(--gold))}
.theme .codes{margin-top:9px; display:flex; flex-wrap:wrap; gap:6px}
.code{font-size:.74rem; color:var(--ink-soft); background:var(--paper); border:1px solid var(--line); border-radius:6px; padding:.2em .55em}
.quote{font-family:'Fraunces',serif; font-style:italic; font-size:1.05rem; color:var(--ink);
  border-left:3px solid var(--gold); padding:6px 0 6px 18px; margin:6px 0}
.quote cite{display:block; font-family:'JetBrains Mono',monospace; font-style:normal; font-size:.72rem; color:var(--ink-faint); margin-top:6px}

/* publications */
.pub-filter{display:flex; gap:6px; flex-wrap:wrap; margin-bottom:20px}
.pub-list{counter-reset:pub}
.pub{display:grid; grid-template-columns:auto 1fr; gap:16px; padding:16px 0; border-bottom:1px solid var(--line); font-size:.96rem}
.pub .yr{font-family:'JetBrains Mono',monospace; font-size:.8rem; color:var(--gold-deep); padding-top:2px}
.pub .ttl{font-weight:600}
.pub .src{color:var(--ink-soft); font-size:.9rem}
.pub .badge{display:inline-block; font-family:'JetBrains Mono',monospace; font-size:.64rem; text-transform:uppercase;
  letter-spacing:.08em; color:var(--pine); background:var(--pine-soft); padding:.2em .5em; border-radius:5px; margin-left:8px; vertical-align:middle}
.hidden{display:none !important}

/* speaking */
.speak-grid{display:grid; gap:32px; align-items:center}
@media(min-width:820px){ .speak-grid{grid-template-columns:1.1fr .9fr} }
.speak img{border-radius:16px; box-shadow:var(--shadow)}
.role{padding:14px 0; border-bottom:1px solid var(--line)}
.role b{display:block} .role span{font-size:.88rem; color:var(--ink-soft)}

/* skills */
.skill-group{margin-bottom:18px}
.skill-group .h{font-family:'JetBrains Mono',monospace; font-size:.74rem; letter-spacing:.1em; text-transform:uppercase; color:var(--gold-deep); margin-bottom:8px}
.chips{display:flex; flex-wrap:wrap; gap:8px}
.chip{background:var(--card); border:1px solid var(--line-strong); border-radius:999px; padding:.4em .9em; font-size:.86rem}

/* contact */
.contact{background:var(--pine); color:#eaf3ee; border-radius:24px; padding:54px 40px; text-align:center; margin:0 24px}
.contact h2{color:#fff}
.contact .lead{color:#cfe2d7; margin:0 auto 24px}
.contact a.email{font-family:'Fraunces',serif; font-size:clamp(1.3rem,3vw,2rem); color:#fff; border-bottom:2px solid var(--gold)}
.socials{display:flex; gap:14px; justify-content:center; margin-top:22px; flex-wrap:wrap}
.socials a{color:#cfe2d7; font-family:'JetBrains Mono',monospace; font-size:.82rem; border:1px solid rgba(255,255,255,.25); padding:.5em 1em; border-radius:999px}
.socials a:hover{background:rgba(255,255,255,.1); color:#fff; text-decoration:none}

/* footer */
.footer{padding:30px 0; text-align:center; color:var(--ink-faint); font-size:.84rem; font-family:'JetBrains Mono',monospace}

/* reveal on scroll */
.reveal{opacity:0; transform:translateY(18px); transition:opacity .6s ease, transform .6s ease}
.reveal.in{opacity:1; transform:none}
@media(prefers-reduced-motion:reduce){ .reveal{opacity:1; transform:none; transition:none} *{scroll-behavior:auto} }
:focus-visible{outline:2px solid var(--gold); outline-offset:2px; border-radius:4px}