/* studentinvestor.org — Variant A · "Compact Blue"
   Tighter rhythm, blue accent + navy ink, off-white.
   Same friendly rounded language, less air. */

:root{
  --blue:#2563eb;         /* primary accent (locked, whole-page) */
  --blue-600:#1d4ed8;
  --blue-300:#60a5fa;
  --blue-100:#dbeafe;
  --blue-50:#eff6ff;
  --navy:#20293a;         /* ink */
  --navy-700:#3a4560;
  --muted:#6b7480;
  --line:#e7e9ec;
  --paper:#ffffff;
  --bg:#fbfcfe;
  --shadow:0 14px 40px rgba(32,41,58,.10);
  --shadow-sm:0 5px 16px rgba(32,41,58,.07);
  --r:14px;
  --r-sm:10px;
  --r-pill:999px;
  --sp:clamp(2.75rem,6vw,4.75rem); /* section rhythm — compact */
  --ease:cubic-bezier(.34,1.56,.64,1);
  --ease-out:cubic-bezier(.16,1,.3,1);
  --wrap:1140px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--navy);
  font-family:"Manrope",system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4,.display{font-family:"Space Grotesk","Manrope",sans-serif;line-height:1.06;letter-spacing:-.02em;color:var(--navy);margin:0}
p{margin:0 0 .9rem;max-width:64ch}
a{color:var(--blue-600);text-decoration:none}
img{max-width:100%;height:auto;display:block}
.wrap{max-width:var(--wrap);margin-inline:auto;padding-inline:clamp(1.1rem,4vw,2rem)}
.eyebrow{font:600 .72rem/1 "Space Grotesk",sans-serif;letter-spacing:.16em;text-transform:uppercase;color:var(--blue-600)}

/* ---------- header ---------- */
.site-head{position:sticky;top:0;z-index:50;background:rgba(251,252,254,.85);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;gap:1.2rem;height:64px}
.brand{display:flex;align-items:center;gap:.6rem;font:700 1.1rem/1 "Space Grotesk",sans-serif;color:var(--navy);letter-spacing:-.01em}
.brand .spark{position:relative;width:32px;height:32px;border-radius:9px;background:linear-gradient(140deg,var(--blue-300),var(--blue) 55%,var(--blue-600));display:grid;place-items:center;color:#fff;box-shadow:0 6px 14px rgba(37,99,235,.30);overflow:hidden}
.brand .spark::after{content:"";position:absolute;inset:0;background:radial-gradient(120% 90% at 20% 0%,rgba(255,255,255,.45),transparent 60%);pointer-events:none}
.brand .spark svg{width:19px;height:19px;position:relative;z-index:1}
.nav-links{display:flex;gap:.15rem;margin-left:auto;align-items:center}
.nav-links a{color:var(--navy-700);font-weight:600;font-size:.92rem;padding:.45rem .7rem;border-radius:var(--r-sm);transition:color .2s,background .2s}
.nav-links a:hover{color:var(--blue-600);background:var(--blue-50)}
.nav-links .btn-primary{margin-left:.5rem;color:#fff;padding:.62rem 1.15rem;font-size:.93rem;font-weight:700;box-shadow:0 8px 20px rgba(37,99,235,.28)}
.site-head .nav-links .btn-primary:hover{color:#fff;background:var(--blue-600);box-shadow:0 14px 28px rgba(37,99,235,.36)}
.btn{display:inline-flex;align-items:center;gap:.5rem;font-weight:700;border-radius:var(--r-pill);padding:.62rem 1.15rem;transition:transform .25s var(--ease),box-shadow .25s,background .2s;cursor:pointer;border:0;font-size:.93rem;line-height:1;white-space:nowrap}
.btn-primary{background:var(--blue);color:#fff;box-shadow:0 8px 20px rgba(37,99,235,.28)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 28px rgba(37,99,235,.36);background:var(--blue-600)}
.btn-primary:active{transform:translateY(0) scale(.98)}
.btn-ghost{background:var(--paper);color:var(--navy);border:1px solid var(--line);box-shadow:var(--shadow-sm)}
.btn-ghost:hover{transform:translateY(-2px);border-color:var(--blue-300);color:var(--blue-600)}
.nav-toggle{display:none;margin-left:auto;background:none;border:0;padding:.4rem;cursor:pointer}
.nav-toggle span{display:block;width:24px;height:2px;background:var(--navy);margin:5px 0;border-radius:2px;transition:.3s var(--ease)}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(1.6rem,4vw,3rem);align-items:center;padding:clamp(2.2rem,5vw,3.6rem) 0 var(--sp)}
.hero h1{font-size:clamp(2.2rem,5vw,3.7rem)}
.hero h1 em{font-style:italic;color:var(--blue-600);font-family:"Space Grotesk",sans-serif}
.hero-sub{font-size:1.08rem;color:var(--navy-700);margin:1rem 0 1.5rem;max-width:36ch}
.hero-cta{display:flex;gap:.7rem;flex-wrap:wrap}
.hero-stats{display:flex;gap:1.7rem;margin-top:1.9rem;flex-wrap:wrap}
.hero-stats .n{font:700 1.7rem/1 "Space Grotesk",sans-serif;color:var(--navy)}
.hero-stats .l{font-size:.82rem;color:var(--muted)}
.hero-art{position:relative;border-radius:20px;overflow:hidden;box-shadow:var(--shadow);aspect-ratio:4/3;background:linear-gradient(135deg,var(--blue-100),#cfe0fb)}
.hero-art img{width:100%;height:100%;object-fit:cover}
.hero-badge{position:absolute;left:16px;bottom:16px;background:rgba(255,255,255,.92);backdrop-filter:blur(6px);border-radius:var(--r);padding:.6rem .9rem;box-shadow:var(--shadow-sm);font-size:.86rem;font-weight:600;display:flex;gap:.5rem;align-items:center}
.hero-badge .up{color:var(--blue);font-weight:800}
/* gentle floating on the hero card — subtle "market breathing" loop */
.hero-art{animation:float 7s ease-in-out infinite;will-change:transform}
.hero-badge{animation:badge-pulse 7s ease-in-out infinite}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}
@keyframes badge-pulse{0%,100%{transform:translateY(0)}50%{transform:translateY(4px)}}
@keyframes tick{0%{stroke-dashoffset:60}55%,100%{stroke-dashoffset:0}}
.hero-badge .spark-line{width:34px;height:16px;display:block}
.hero-badge .spark-line path{fill:none;stroke:var(--blue);stroke-width:2.4;stroke-linecap:round;stroke-linejoin:round;stroke-dasharray:60;animation:tick 4.5s ease-in-out infinite}
.blob{position:absolute;border-radius:50%;filter:blur(60px);opacity:.5;z-index:-1}
.blob.a{width:340px;height:340px;background:var(--blue-100);top:-120px;right:-80px}
.blob.b{width:280px;height:280px;background:#dce8fc;bottom:-100px;left:-90px}

/* ---------- generic section ---------- */
section{padding-block:var(--sp)}
.sec-head{max-width:58ch;margin-bottom:1.9rem}
.sec-head h2{font-size:clamp(1.7rem,3.2vw,2.4rem)}
.sec-head p{color:var(--navy-700);margin-top:.7rem;font-size:1.02rem}

/* feature rows / steps */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem}
.step{background:var(--paper);border:1px solid var(--line);border-radius:var(--r);padding:1.4rem;box-shadow:var(--shadow-sm);transition:transform .3s var(--ease),box-shadow .3s,border-color .3s}
.step:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:var(--blue-300)}
.step .ico{width:42px;height:42px;border-radius:11px;background:var(--blue-50);display:grid;place-items:center;margin-bottom:.85rem;color:var(--blue-600)}
.step h3{font-size:1.15rem;margin-bottom:.4rem}
.step p{color:var(--muted);font-size:.95rem;margin:0}

/* split feature */
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(1.6rem,4vw,3rem);align-items:center}
.split.rev .split-media{order:2}
.split-media{border-radius:16px;overflow:hidden;box-shadow:var(--shadow);aspect-ratio:5/4;background:linear-gradient(135deg,var(--blue-50),var(--blue-100))}
.split-media img{width:100%;height:100%;object-fit:cover}
.ticks{list-style:none;padding:0;margin:1.1rem 0 0;display:grid;gap:.7rem}
.ticks li{display:flex;gap:.65rem;align-items:flex-start;font-weight:500;color:var(--navy-700)}
.ticks li svg{flex:0 0 auto;margin-top:3px;color:var(--blue)}

/* prizes tiles */
.prize-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:1rem}
.prize{border-radius:var(--r);padding:1.4rem;border:1px solid var(--line);background:var(--paper);box-shadow:var(--shadow-sm);transition:transform .3s var(--ease),box-shadow .3s}
.prize:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.prize.hi{background:linear-gradient(135deg,var(--navy),var(--navy-700));color:#fff;border:0}
.prize.hi h3,.prize.hi .amt{color:#fff}
.prize .amt{font:700 1.9rem/1 "Space Grotesk",sans-serif;color:var(--blue-600);margin-bottom:.3rem}
.prize.hi .amt{color:var(--blue-300)}
.prize p{font-size:.92rem;color:var(--muted);margin:.35rem 0 0}
.prize.hi p{color:rgba(255,255,255,.8)}

/* software-dev band (owner pitch) */
.dev{background:linear-gradient(135deg,var(--navy),#16202f);color:#fff;border-radius:22px;padding:clamp(1.8rem,4vw,3rem);position:relative;overflow:hidden}
.dev h2{color:#fff;font-size:clamp(1.7rem,3.2vw,2.4rem);max-width:20ch}
.dev p{color:rgba(255,255,255,.82);max-width:52ch;margin-top:.85rem}
.dev-tags{display:flex;gap:.55rem;flex-wrap:wrap;margin:1.3rem 0 1.6rem}
.dev-tags span{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);padding:.4rem .8rem;border-radius:var(--r-pill);font-size:.85rem;font-weight:600}
.dev .glow{position:absolute;width:320px;height:320px;border-radius:50%;background:radial-gradient(circle,rgba(96,165,250,.5),transparent 70%);top:-120px;right:-80px;filter:blur(40px)}

/* blog teaser */
.posts{display:grid;grid-template-columns:repeat(3,1fr);gap:1.2rem}
.post{background:var(--paper);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow-sm);transition:transform .3s var(--ease),box-shadow .3s;display:flex;flex-direction:column}
.post:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.post .ph{aspect-ratio:16/10;background:linear-gradient(135deg,var(--blue-100),#cfe0fb);overflow:hidden}
.post .ph img{width:100%;height:100%;object-fit:cover}
.post .body{padding:1.1rem}
.post .cat{font:700 .7rem/1 "Space Grotesk",sans-serif;letter-spacing:.1em;text-transform:uppercase;color:var(--blue-600)}
.post h3{font-size:1.1rem;margin:.5rem 0 .4rem}
.post p{font-size:.9rem;color:var(--muted);margin:0}
.post .meta{display:flex;align-items:center;gap:.5rem;margin-top:.7rem;font-size:.78rem;color:var(--muted)}
.post .meta .dot{width:3px;height:3px;border-radius:50%;background:var(--line)}
/* ---------- blog toolbar (search + categories) ---------- */
.blog-toolbar{position:sticky;top:64px;z-index:20;background:rgba(251,252,254,.9);backdrop-filter:blur(10px);border-block:1px solid var(--line);padding:.85rem 0;margin-bottom:1.6rem}
.blog-toolbar .bar{display:flex;flex-wrap:wrap;align-items:center;gap:.7rem;justify-content:space-between}
.blog-search{position:relative;flex:1 1 260px;max-width:340px}
.blog-search svg{position:absolute;left:.85rem;top:50%;transform:translateY(-50%);width:17px;height:17px;color:var(--muted)}
.blog-search input{width:100%;border:1px solid var(--line);background:var(--paper);border-radius:var(--r-pill);padding:.6rem 1rem .6rem 2.4rem;font:500 .92rem/1 "Manrope",sans-serif;color:var(--navy);box-shadow:var(--shadow-sm);transition:border-color .2s,box-shadow .2s}
.blog-search input:focus{outline:0;border-color:var(--blue-300);box-shadow:0 0 0 3px var(--blue-50)}
.cat-pills{display:flex;flex-wrap:wrap;gap:.4rem}
.cat-pills .pill{border:1px solid var(--line);background:var(--paper);color:var(--navy-700);font:600 .82rem/1 "Space Grotesk",sans-serif;padding:.48rem .9rem;border-radius:var(--r-pill);cursor:pointer;transition:all .2s var(--ease)}
.cat-pills .pill:hover{border-color:var(--blue-300);color:var(--blue-600)}
.cat-pills .pill.active{background:var(--blue);border-color:var(--blue);color:#fff;box-shadow:0 6px 14px rgba(37,99,235,.26)}
.post.hide{display:none}
.blog-empty{display:none;text-align:center;padding:3rem 1rem;color:var(--muted)}
.blog-empty.show{display:block}
.blog-empty h3{font-size:1.15rem;margin-bottom:.4rem}

/* testimonial */
.quote{max-width:780px;margin-inline:auto;text-align:center}
.quote blockquote{font-family:"Space Grotesk",sans-serif;font-size:clamp(1.4rem,2.8vw,2rem);line-height:1.25;letter-spacing:-.01em;margin:0 0 1.1rem;color:var(--navy)}
.quote cite{font-style:normal;color:var(--muted);font-weight:600}

/* CTA band */
.cta-band{background:linear-gradient(135deg,var(--blue-50),var(--blue-100));border-radius:22px;padding:clamp(2rem,4vw,3.2rem);text-align:center}
.cta-band h2{font-size:clamp(1.6rem,3vw,2.3rem)}
.cta-band p{margin:.8rem auto 1.5rem;color:var(--navy-700)}

/* ---------- footer ---------- */
.site-foot{background:var(--navy);color:rgba(255,255,255,.72);padding-block:2.8rem 1.8rem;margin-top:var(--sp)}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:1.7rem}
.site-foot h4{color:#fff;font-size:.92rem;margin-bottom:.8rem;letter-spacing:.02em}
.site-foot a{color:rgba(255,255,255,.72);display:block;padding:.25rem 0;font-size:.9rem;transition:color .2s}
.site-foot a:hover{color:var(--blue-300)}
/* footer nav links: comfortable >=44px tap targets on touch */
.foot-grid a:not(.brand){display:flex;align-items:center;min-height:44px;padding-block:.15rem}
.site-foot .brand{display:flex;align-items:center;gap:.6rem;color:#fff;margin-bottom:.7rem;min-height:0}
.site-foot .brand .spark{flex:0 0 auto}
.foot-bot{border-top:1px solid rgba(255,255,255,.12);margin-top:2rem;padding-top:1.2rem;font-size:.83rem;display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap}

/* ---------- forms (newsletter / contact) ---------- */
.wrap.narrow{max-width:var(--wrap);display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:clamp(2rem,5vw,4rem);align-items:start}
.form-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--r);padding:1.6rem;box-shadow:var(--shadow-sm)}
.lead-form .field{margin-bottom:1rem}
.lead-form label{display:block;font-weight:600;font-size:.9rem;margin-bottom:.4rem;color:var(--navy)}
.lead-form label .opt{font-weight:400;color:var(--muted)}
.lead-form input,.lead-form select,.lead-form textarea{width:100%;min-height:44px;padding:.6rem .8rem;font:inherit;font-size:.95rem;color:var(--navy);background:#fff;border:1px solid var(--line);border-radius:var(--r-sm,.6rem);transition:border-color .2s,box-shadow .2s}
.lead-form textarea{min-height:120px;resize:vertical}
.lead-form input:focus,.lead-form select:focus,.lead-form textarea:focus{outline:none;border-color:var(--blue-600);box-shadow:0 0 0 3px rgba(37,99,235,.16)}
.lead-form{display:flex;flex-direction:column;align-items:flex-start}
.lead-form .field,.lead-form .form-note,.lead-form .form-msg{width:100%}
.lead-form .btn-primary{align-self:flex-start;min-height:44px;padding:.62rem 1.15rem;margin-top:.3rem}
.lead-form .form-note{font-size:.82rem;color:var(--muted);margin-top:.8rem}
.lead-form .form-note a{color:var(--blue-600);text-decoration:underline}
.form-msg{margin-top:.9rem;font-size:.9rem;font-weight:600;display:none}
.form-msg.show{display:block}
.form-msg.ok{color:#1f7a34}
.form-msg.err{color:#c0392b}
.perk-list,.contact-side{align-self:center}
.perk-list{list-style:none;display:grid;gap:.9rem}
.perk-list li{position:relative;padding-left:1.7rem;color:var(--navy);font-size:.96rem}
.perk-list li::before{content:"";position:absolute;left:0;top:.35em;width:1rem;height:1rem;border-radius:50%;background:var(--blue-600);box-shadow:0 0 0 4px rgba(37,99,235,.14)}
.contact-side h3{font-family:"Space Grotesk",sans-serif;margin-bottom:.6rem}
.contact-side p{margin-bottom:.9rem;color:var(--navy)}
.contact-side .muted{color:var(--muted);font-size:.9rem}
@media(max-width:760px){.wrap.narrow{grid-template-columns:1fr}}

/* ---------- reveal animation ---------- */
[data-reveal]{opacity:0;transform:translateY(22px);transition:opacity .6s var(--ease-out),transform .6s var(--ease)}
[data-reveal].in{opacity:1;transform:none}

/* ---------- variant switch pill ---------- */
.vswitch{position:fixed;right:16px;bottom:16px;z-index:80;background:var(--navy);color:#fff;font:700 .82rem/1 "Space Grotesk",sans-serif;padding:.7rem 1.1rem;border-radius:var(--r-pill);box-shadow:var(--shadow);display:flex;gap:.5rem;align-items:center;transition:transform .25s var(--ease)}
.vswitch:hover{transform:translateY(-2px);color:#fff}
.vswitch b{color:var(--blue-300)}

/* ---------- content pages (rules/privacy/league) ---------- */
.page-head{padding:clamp(2rem,5vw,3.4rem) 0 0}
.page-head h1{font-size:clamp(1.9rem,4vw,2.9rem)}
.page-head .lead{font-size:1.08rem;color:var(--navy-700);margin-top:.85rem;max-width:60ch}
.prose{max-width:72ch}
.prose h2{font-size:1.4rem;margin:1.9rem 0 .7rem}
.prose h3{font-size:1.15rem;margin:1.4rem 0 .45rem}
.prose p,.prose li{color:var(--navy-700)}
.prose ul{padding-left:1.1rem;display:grid;gap:.45rem}
.table-card{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow-sm);background:var(--paper)}
table.league{width:100%;border-collapse:collapse;font-size:.93rem;min-width:520px}
table.league th,table.league td{text-align:left;padding:.7rem 1rem}
table.league thead th{background:var(--blue-50);color:var(--navy);font-family:"Space Grotesk",sans-serif;font-size:.83rem;letter-spacing:.03em;position:sticky;top:0}
table.league tbody tr{border-top:1px solid var(--line)}
table.league tbody tr:hover{background:var(--blue-50)}
table.league td.rank{font-weight:700;color:var(--blue-600);font-family:"Space Grotesk",sans-serif}

/* league table extras */
.league-tabs{display:flex;gap:.4rem;flex-wrap:wrap;margin:0 0 1rem}
.league-tabs .lt{font:600 .85rem/1 "Space Grotesk",sans-serif;padding:.5rem .9rem;border-radius:var(--r-pill);border:1px solid var(--line);background:var(--paper);color:var(--navy-700);transition:.2s var(--ease);cursor:pointer;-webkit-appearance:none;appearance:none}
.league-tabs .lt:hover{border-color:var(--blue-300);color:var(--blue-600)}
.league-tabs .lt:focus-visible{outline:2px solid var(--blue);outline-offset:2px}
.league-tabs .lt.on{background:var(--blue);color:#fff;border-color:var(--blue)}
.league-panel{display:none}
.league-panel.on{display:block}
.tbl-intro{color:var(--muted);font-size:.95rem;line-height:1.5;margin:0 0 1rem;max-width:72ch}
.tbl-intro strong{color:var(--navy)}
table.league td.num{font-variant-numeric:tabular-nums;font-weight:600;color:var(--navy)}
table.league td.chg.up{color:#16a34a;font-weight:700}
table.league td.chg.down{color:#dc2626;font-weight:700}
table.league td.chg.flat{color:var(--muted)}
table.league tr.q,table.league tr.q td{background:var(--blue-50)}
table.league tr.q td.rank{color:var(--blue-600)}
table.league td.tag span{display:inline-block;font:700 .72rem/1 "Space Grotesk",sans-serif;letter-spacing:.04em;background:var(--blue-50);color:var(--blue-600);padding:.32rem .55rem;border-radius:var(--r-pill)}
.tbl-note{font-size:.88rem;color:var(--muted);margin:1rem 0 0}
.page-links{display:flex;gap:.7rem;flex-wrap:wrap;margin-top:2rem}
.prize-grid.two{grid-template-columns:1fr 1fr}
.art-cover{border-radius:18px;overflow:hidden;box-shadow:var(--shadow);aspect-ratio:2/1;background:linear-gradient(135deg,var(--blue-50),var(--blue-100))}
.art-cover img{width:100%;height:100%;object-fit:cover}

/* ---------- responsive ---------- */
@media(max-width:900px){
  .hero-grid,.split,.steps,.prize-grid,.prize-grid.two,.posts,.foot-grid{grid-template-columns:1fr}
  .split.rev .split-media{order:0}
  .hero-art{aspect-ratio:16/10}
  .foot-grid{gap:1.4rem}
  .blog-toolbar .bar{flex-direction:column;align-items:stretch}
  .blog-search{max-width:none}
}
@media(max-width:760px){
  .nav-links{position:fixed;inset:64px 0 auto 0;flex-direction:column;background:var(--paper);border-bottom:1px solid var(--line);padding:1rem 1.3rem 1.6rem;gap:.2rem;align-items:stretch;transform:translateY(-140%);transition:transform .4s var(--ease);box-shadow:var(--shadow)}
  .nav-links.open{transform:none}
  .nav-links a{padding:.75rem .6rem}
  .nav-links .btn{margin-top:.5rem;justify-content:center}
  .nav-links .btn-primary{margin-left:0}
  .blog-toolbar{top:64px}
  .nav-toggle{display:block}
  .hero-stats{gap:1.2rem}
  .foot-bot{flex-direction:column}
}
@media(prefers-reduced-motion:reduce){
  *{scroll-behavior:auto!important}
  [data-reveal]{opacity:1!important;transform:none!important;transition:none!important}
  .btn,.step,.prize,.post{transition:none!important}
  .hero-art,.hero-badge,.hero-badge .spark-line path{animation:none!important;transform:none!important}
}