/* StudentObsidian — one stylesheet, mobile-first. Tokens from grafisk-spec. */

:root{
  --bg:#faf8ff;
  --surface:#ffffff;
  --soft:#f3efff;
  --primary:#8b5cf6;
  --lavender:#a78bfa;
  --light:#c4b5fd;
  --hover:#7c3aed;
  --ink:#1e1b2e;
  --ink-2:#5b5670;
  --muted:#8a86a0;
  --line:#e9e3fb;
  --grad:linear-gradient(100deg,#8b5cf6 0%,#d946ef 55%,#22d3ee 100%);
  --shadow:0 4px 20px rgba(139,92,246,.08);
  --shadow-lg:0 12px 40px rgba(139,92,246,.16);
  --r:14px;
  --r-lg:20px;
  --accent:var(--primary);
  --head:"Space Grotesk",system-ui,-apple-system,"Segoe UI",sans-serif;
  --body:"Inter",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
body[data-niche="medicine"]{--accent:#0ea5e9}
body[data-niche="law"]{--accent:#dc2626}
body[data-niche="business"]{--accent:#16a34a}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important;animation:none!important}}

body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:var(--body);font-size:17px;line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--hover);text-underline-offset:3px}
h1,h2,h3{font-family:var(--head);font-weight:700;line-height:1.15;letter-spacing:-.02em;margin:0 0 .5em}
h1{font-size:clamp(2.1rem,7vw,3.6rem)}
h2{font-size:clamp(1.5rem,4.5vw,2.2rem)}
h3{font-size:1.15rem;font-weight:600}
p{margin:0 0 1.1em}
.muted{color:var(--muted)}
.small{font-size:.9rem}
.center{text-align:center}
:focus-visible{outline:2.5px solid var(--primary);outline-offset:3px;border-radius:6px}
.skip{position:absolute;left:-9999px}
.skip:focus{left:1rem;top:1rem;z-index:99;background:var(--primary);color:#fff;padding:.6rem 1rem;border-radius:10px}

.wrap{width:min(1080px,100% - 2rem);margin-inline:auto}
.wrap.narrow{width:min(720px,100% - 2rem)}
section{padding:clamp(2.5rem,8vw,4.5rem) 0}
.lede{font-size:1.05rem;color:var(--ink-2);max-width:60ch}
.center .lede{margin-inline:auto}

/* ---------------------------------------------------------- header ----- */
.site-header{position:sticky;top:0;z-index:40;background:rgba(250,248,255,.88);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.header-in{display:flex;align-items:center;justify-content:space-between;gap:1rem;min-height:62px}
.brand{display:flex;align-items:center;gap:.55rem;text-decoration:none;color:var(--ink);font-family:var(--head);font-weight:700;font-size:1.05rem;letter-spacing:-.01em}
.brand img{width:30px;height:30px}
.nav{display:flex;align-items:center;gap:1.1rem;font-size:.92rem;font-weight:500}
.nav a:not(.btn){color:var(--ink-2);text-decoration:none}
.nav a:not(.btn):hover{color:var(--hover)}
@media (max-width:720px){.nav a:not(.btn){display:none}}

/* ---------------------------------------------------------- buttons ---- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.45rem;
  padding:.85rem 1.6rem;border-radius:999px;border:0;cursor:pointer;
  font:600 1rem/1.1 var(--body);text-decoration:none;color:#fff;
  background:var(--grad);background-size:160% 100%;
  box-shadow:0 8px 24px -8px rgba(139,92,246,.6);
  transition:transform .14s ease,box-shadow .2s ease,background-position .3s ease;
}
.btn:hover{color:#fff;transform:translateY(-2px);background-position:30% 0;box-shadow:0 14px 30px -8px rgba(139,92,246,.7)}
.btn-sm{padding:.55rem 1.1rem;font-size:.88rem}
.btn-ghost{background:var(--surface);color:var(--ink);border:1.5px solid var(--line);box-shadow:none}
.btn-ghost:hover{color:var(--hover);border-color:var(--light);background:var(--surface)}
.btn-accent{background:var(--accent);box-shadow:0 8px 24px -8px color-mix(in srgb,var(--accent) 60%,transparent)}
.btn-accent:hover{background:var(--accent);filter:brightness(1.08)}
.cta-row{display:flex;flex-wrap:wrap;gap:.75rem;margin:1.6rem 0 1rem}
.center .cta-row{justify-content:center}

/* ------------------------------------------------------------- hero ---- */
.hero{position:relative;overflow:hidden;padding-top:clamp(2.5rem,7vw,4rem)}
.hero::before{
  content:"";position:absolute;inset:-30% 40% 50% -20%;z-index:-1;
  background:radial-gradient(closest-side,rgba(139,92,246,.22),transparent);
}
.hero::after{
  content:"";position:absolute;inset:-10% -25% 40% 55%;z-index:-1;
  background:radial-gradient(closest-side,rgba(34,211,238,.18),transparent);
}
.eyebrow{font:600 .78rem/1.4 var(--body);letter-spacing:.1em;text-transform:uppercase;color:var(--primary);margin:0 0 .9rem}
.h1-sub{display:block;font-family:var(--body);font-weight:500;font-size:clamp(1rem,2.6vw,1.3rem);color:var(--ink-2);letter-spacing:0;margin-top:.7rem;line-height:1.4}
.grad-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.trust{font-size:.86rem;color:var(--muted);margin:0}

/* ------------------------------------------------------------ cards ---- */
.cards{display:grid;gap:1.1rem;margin-top:2rem}
@media (min-width:820px){.cards{grid-template-columns:repeat(3,1fr)}}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:1.5rem;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:.5rem;
  border-top:4px solid var(--c,var(--primary));
  transition:transform .15s ease,box-shadow .2s ease;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg)}
.card .emoji{font-size:1.9rem;line-height:1}
.card .tag{font-size:.76rem;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--c,var(--primary))}
.card h3{font-size:1.4rem;margin:.1rem 0}
.card p{color:var(--ink-2);font-size:.96rem;flex:1;margin-bottom:.8rem}
.card .btn{width:100%;background:var(--c,var(--primary));box-shadow:none}
.card .btn:hover{filter:brightness(1.08)}

/* ------------------------------------------------------------ lists ---- */
.feature-list{list-style:none;padding:0;margin:1.8rem 0 0;display:grid;gap:.85rem}
@media (min-width:760px){.feature-list.two{grid-template-columns:1fr 1fr}}
.feature-list li{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r);
  padding:1.05rem 1.2rem;box-shadow:var(--shadow);
}
.feature-list b{display:block;font-family:var(--head);font-weight:600;font-size:1.02rem;margin-bottom:.15rem}
.feature-list span{color:var(--ink-2);font-size:.95rem}
.why{list-style:none;padding:0;margin:1.5rem 0}
.why li{padding:.6rem 0;border-bottom:1px solid var(--line);color:var(--ink-2)}
.why li:last-child{border-bottom:0}
.why b{color:var(--ink)}
.soft{background:var(--soft)}
code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.88em;background:#ece5ff;padding:.12em .4em;border-radius:6px;color:#5b21b6}

/* --------------------------------------------------------- callouts ---- */
.note{
  background:var(--surface);border:1px solid var(--line);border-left:4px solid var(--accent);
  border-radius:0 var(--r) var(--r) 0;padding:1.3rem 1.5rem;box-shadow:var(--shadow);
}
.note h2{font-size:1.25rem;margin-bottom:.5rem}
.note p:last-child{margin-bottom:0}
.note.plain{border-left-color:var(--light)}

/* ------------------------------------------------------------ price ---- */
.price-band{background:var(--grad);border-radius:var(--r-lg);padding:clamp(1.8rem,5vw,3rem);color:#fff;text-align:center;box-shadow:var(--shadow-lg)}
.price-band h2{color:#fff;margin-bottom:.4rem}
.price-band p{color:rgba(255,255,255,.92);max-width:52ch;margin-inline:auto}
.price-band .btn{background:#fff;color:var(--hover);box-shadow:0 10px 30px -10px rgba(0,0,0,.35)}
.price-band .btn:hover{background:#fff;color:var(--hover)}

/* -------------------------------------------------------------- faq ---- */
.faq details{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);margin:.65rem 0;box-shadow:var(--shadow);overflow:hidden}
.faq summary{cursor:pointer;padding:1rem 1.2rem;font-weight:600;list-style:none;display:flex;justify-content:space-between;gap:1rem;align-items:center;font-family:var(--head)}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--primary);font-size:1.4rem;font-weight:400;line-height:1;flex:none}
.faq details[open] summary::after{content:"–"}
.faq details[open] summary{border-bottom:1px solid var(--line)}
.faq div{padding:1rem 1.2rem;color:var(--ink-2)}
.faq div p:last-child{margin-bottom:0}

/* ----------------------------------------------------------- footer ---- */
.site-footer{border-top:1px solid var(--line);background:var(--soft);padding:2.5rem 0 1.8rem;margin-top:3rem}
.foot-grid{display:grid;gap:1.6rem}
@media (min-width:760px){.foot-grid{grid-template-columns:1.4fr 1fr 1fr}}
.foot-grid h3{font-size:.8rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);font-family:var(--body);font-weight:600}
.foot-grid ul{list-style:none;padding:0;margin:0}
.foot-grid li{margin:.35rem 0}
.foot-grid a{color:var(--ink-2);text-decoration:none;font-size:.95rem}
.foot-grid a:hover{color:var(--hover)}
.disclaim{margin-top:1.8rem;padding-top:1.2rem;border-top:1px solid var(--line);font-size:.88rem;color:var(--muted)}
.disclaim b{color:var(--ink-2)}