/* SAT Game Prep — mobile-first stylesheet */
:root{
  --bg:#0b1020;--bg2:#111832;--card:#161f3d;--card2:#1c2749;--ink:#eaf0ff;--mut:#9aa8d0;--dim:#6c7aa6;
  --acc:#6ee7ff;--acc2:#7c5cff;--gold:#ffd54a;--good:#39d98a;--bad:#ff6b7d;--line:#26325c;
  --r:16px;--shadow:0 10px 30px rgba(0,0,0,.4);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:'Segoe UI',system-ui,-apple-system,Roboto,Helvetica,Arial,sans-serif;
  background:radial-gradient(1200px 800px at 80% -10%,#1a2350 0,transparent 55%),radial-gradient(1000px 700px at -10% 10%,#241a4d 0,transparent 50%),var(--bg);
  color:var(--ink);line-height:1.6;-webkit-font-smoothing:antialiased;min-height:100vh}
a{color:var(--acc);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{line-height:1.2;margin:0 0 .4em}
h1{font-size:clamp(28px,6vw,44px)}
h2{font-size:clamp(22px,4vw,30px)}
img{max-width:100%}
.wrap{max-width:1080px;margin:0 auto;padding:0 18px}
.narrow{max-width:620px}
.pad{padding:34px 18px}
.pad-t{padding-top:20px}
.center{text-align:center}
.muted{color:var(--mut)}.small{font-size:.86rem}.dim{color:var(--dim)}
.grad{background:linear-gradient(90deg,var(--acc),var(--acc2));-webkit-background-clip:text;background-clip:text;color:transparent}
.skip{position:absolute;left:-999px}.skip:focus{left:8px;top:8px;background:var(--card);padding:8px;border-radius:8px;z-index:100}

/* buttons */
.btn{display:inline-block;background:linear-gradient(90deg,var(--acc),var(--acc2));color:#08122b;font-weight:800;
  padding:13px 22px;border-radius:12px;border:0;font-size:16px;cursor:pointer;box-shadow:0 6px 18px rgba(124,92,255,.32);text-align:center}
.btn:hover{filter:brightness(1.05);text-decoration:none}
.btn-lg{padding:15px 26px;font-size:17px}
.btn-ghost{background:var(--card);color:var(--ink);border:1px solid var(--line);box-shadow:none}
.btn-sm{padding:8px 14px;font-size:14px;border-radius:10px}
.btn-danger{background:linear-gradient(90deg,#ff6b7d,#ff9f43);color:#2a0810}
.btn:disabled{filter:grayscale(.6) brightness(.7);cursor:not-allowed}

/* header */
.site-head{position:sticky;top:0;z-index:40;background:rgba(11,16,32,.9);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.head-row{display:flex;align-items:center;gap:16px;padding:12px 18px}
.brand{font-weight:800;letter-spacing:.5px;color:var(--ink)}
.brand:hover{text-decoration:none}
.brand-mark{color:var(--gold)}
.mainnav{margin-left:auto;display:flex;align-items:center;gap:18px}
.mainnav a{color:var(--mut);font-weight:600}
.mainnav a:hover{color:var(--ink);text-decoration:none}
.mainnav .btn-sm{background:linear-gradient(90deg,var(--acc),var(--acc2));color:#08122b}
.navtoggle{display:none;margin-left:auto;background:none;border:1px solid var(--line);color:var(--ink);font-size:20px;border-radius:10px;padding:4px 10px;cursor:pointer}
@media(max-width:760px){
  .navtoggle{display:block}
  .mainnav{position:fixed;inset:56px 0 auto 0;flex-direction:column;align-items:flex-start;gap:0;background:var(--bg2);
    border-bottom:1px solid var(--line);padding:8px 18px;display:none}
  body.navopen .mainnav{display:flex}
  .mainnav a{padding:12px 0;width:100%;border-bottom:1px solid var(--line)}
}

/* flash / alerts */
.flash{padding:10px 0;font-weight:600}
.flash-success,.alert-ok{background:rgba(57,217,138,.12);color:#8ff0c0}
.flash-info,.alert-info{background:rgba(110,231,255,.1);color:#bfefff}
.flash-error,.alert-bad{background:rgba(255,107,125,.12);color:#ffc2ca}
.alert{padding:12px 14px;border-radius:12px;margin:14px 0;border:1px solid var(--line)}
.alert ul{margin:0;padding-left:18px}

/* hero */
.hero{padding:48px 0 20px}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:32px;align-items:center}
.pill-tag{display:inline-block;background:rgba(255,213,74,.14);color:var(--gold);font-weight:800;font-size:12px;
  padding:5px 12px;border-radius:999px;text-transform:uppercase;letter-spacing:.5px}
.lead{font-size:clamp(16px,2.4vw,19px);color:#d7e0ff;margin:14px 0 22px}
.cta-row{display:flex;gap:12px;flex-wrap:wrap}
.hero-card{background:linear-gradient(180deg,var(--card),var(--card2));border:1px solid var(--line);border-radius:20px;padding:18px;box-shadow:var(--shadow)}
.hc-top{display:flex;justify-content:space-between;font-weight:800;color:var(--acc);font-size:14px}
.hc-chip{color:var(--gold)}
.hc-q{font-weight:700;margin:14px 0 12px;font-size:18px}
.hc-opt{background:#0e1533;border:1px solid var(--line);border-radius:10px;padding:10px 12px;margin-bottom:8px}
.hc-opt.correct{border-color:var(--good);background:rgba(57,217,138,.14);color:#c9f6df}
.hc-fb{background:rgba(57,217,138,.1);border:1px solid rgba(57,217,138,.4);border-radius:10px;padding:10px 12px;font-size:14px;color:#cdeede}
@media(max-width:760px){.hero-grid{grid-template-columns:1fr}.hero{padding:28px 0 10px}}

/* bands & stats */
.band{padding:8px 18px 0}
.stat-row{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.stat{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:16px;text-align:center}
.stat b{display:block;font-size:26px;color:var(--gold)}
.stat span{color:var(--dim);font-size:12px;text-transform:uppercase;letter-spacing:.5px}
@media(max-width:600px){.stat-row{grid-template-columns:repeat(2,1fr)}}

/* cards & features */
.card{background:linear-gradient(180deg,var(--card),var(--card2));border:1px solid var(--line);border-radius:var(--r);padding:20px;box-shadow:var(--shadow);margin-bottom:18px}
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:18px}
.feat .fic{font-size:30px}
.feat h3{margin:8px 0 6px}
.feat p{color:#c7d1f2;margin:0;font-size:15px}
@media(max-width:860px){.feature-grid{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.feature-grid{grid-template-columns:1fr}}

.mod-preview{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:18px}
.mp-chip{display:inline-flex;align-items:center;gap:8px;background:var(--card);border:1px solid var(--line);border-radius:999px;padding:8px 14px;color:var(--ink);font-weight:600;font-size:14px}
.mp-chip:hover{border-color:var(--acc);text-decoration:none}
.closing{padding-bottom:50px}

/* learn */
.sec-h{margin:26px 0 12px;border-bottom:1px solid var(--line);padding-bottom:8px}
.learn-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
@media(max-width:860px){.learn-grid{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.learn-grid{grid-template-columns:1fr}}
.lm{display:flex;gap:12px;align-items:center}
.lm:hover{border-color:var(--acc);text-decoration:none;transform:translateY(-2px);transition:.15s}
.lm-ic{font-size:26px;width:46px;height:46px;display:grid;place-items:center;background:#0e1533;border:1px solid var(--line);border-radius:12px;flex:none}
.lm h3{margin:0;font-size:16px}
.cta-card{margin-top:26px}

/* module/lesson */
.crumbs{color:var(--dim);font-size:14px;margin-bottom:8px}
.tabbar{display:flex;gap:8px;margin:16px 0}
.tab{flex:1;padding:11px;border-radius:12px;background:var(--card);border:1px solid var(--line);color:var(--mut);font-weight:800;cursor:pointer}
.tab.on{background:linear-gradient(90deg,var(--acc),var(--acc2));color:#08122b;border-color:transparent}
.lesson-body h3{color:var(--acc);margin:16px 0 6px}
.lesson-body p,.lesson-body li{color:#d7e0ff}
.lesson-body ul{padding-left:20px}
.lesson-body .key{background:#0e1533;border-left:3px solid var(--gold);padding:12px 14px;border-radius:8px;margin:12px 0}
.lesson-body .ex{background:#0c1430;border:1px solid var(--line);border-radius:10px;padding:12px;margin:10px 0}
.lesson-body code{background:#0c1230;padding:2px 7px;border-radius:6px;color:var(--acc)}
.note{margin-top:16px}

/* quiz */
.quiz .qmeta,.testcard .qmeta{display:flex;justify-content:space-between;align-items:center;color:var(--mut);font-weight:700;font-size:14px;margin-bottom:10px}
.pill{padding:3px 10px;border-radius:999px;font-size:11px;font-weight:800;text-transform:uppercase}
.pill.e{background:rgba(57,217,138,.15);color:var(--good)}
.pill.m{background:rgba(255,213,74,.15);color:var(--gold)}
.pill.h{background:rgba(255,107,125,.15);color:var(--bad)}
.timer{font-variant-numeric:tabular-nums;background:#0e1533;border:1px solid var(--line);padding:4px 10px;border-radius:8px;color:var(--acc);font-weight:800}
.dots{display:flex;gap:5px;flex-wrap:wrap;margin-bottom:14px}
.dot{width:10px;height:10px;border-radius:50%;background:#26325c}
.dot.done{background:var(--acc)}.dot.cur{background:var(--gold)}.dot.miss{background:var(--bad)}
.passage{background:#0c1430;border:1px solid var(--line);border-radius:12px;padding:14px;color:#d7e0ff;margin-bottom:14px;white-space:pre-wrap}
.passage.sm{font-size:13px}
.qtext{font-size:17px;font-weight:600;margin-bottom:16px;white-space:pre-wrap}
.qtext.sm{font-size:15px}
.choices{display:flex;flex-direction:column;gap:10px}
.choice{display:flex;gap:12px;align-items:flex-start;text-align:left;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:13px;color:var(--ink);font-size:15px;cursor:pointer;width:100%}
.choice:hover{border-color:var(--acc)}
.choice .k{width:26px;height:26px;border-radius:8px;background:#0e1533;border:1px solid var(--line);display:grid;place-items:center;font-weight:800;flex:none}
.choice.correct{border-color:var(--good);background:rgba(57,217,138,.12)}
.choice.correct .k{background:var(--good);color:#062616}
.choice.wrong{border-color:var(--bad);background:rgba(255,107,125,.12)}
.choice.wrong .k{background:var(--bad);color:#2a0810}
.choice.sel{border-color:var(--acc);background:rgba(110,231,255,.08)}
.choice.lock{pointer-events:none}
.fb{margin-top:16px;border-radius:12px;padding:14px;border:1px solid var(--line)}
.fb.good{background:rgba(57,217,138,.1);border-color:rgba(57,217,138,.5)}
.fb.bad{background:rgba(255,107,125,.1);border-color:rgba(255,107,125,.5)}
.fbh{font-weight:800;margin-bottom:6px}
#qnav{margin-top:16px}#qnav .btn{width:100%}
#hintzone{margin-top:14px}
.hint{background:#0e1533;border:1px solid var(--line);border-left:3px solid var(--gold);border-radius:12px;padding:11px 13px;margin-bottom:10px}
.hint b{color:var(--gold);font-size:13px}
.hint p{margin:6px 0 0;font-size:14px;color:#dfe6ff}
.hint.approach{border-left-color:var(--acc)}.hint.approach b{color:var(--acc)}
.result .rbig{font-size:44px}
.ringpct{font-size:40px;font-weight:800;color:var(--gold)}
.chip-xp{color:var(--acc);font-weight:800}
.btnrow{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-top:14px}
.ex{background:#0c1430;border:1px solid var(--line);border-radius:10px;padding:12px;color:#dfe6ff}

/* dashboard */
.dash-hero{display:flex;gap:14px;align-items:center}
.avatar{width:56px;height:56px;border-radius:16px;display:grid;place-items:center;font-size:28px;background:linear-gradient(135deg,var(--acc2),var(--acc))}
.lvl{font-size:12px;color:var(--dim);font-weight:800;text-transform:uppercase;letter-spacing:1px}
.xpbar,.meter{height:8px;background:#0c1230;border:1px solid var(--line);border-radius:999px;overflow:hidden;margin:6px 0}
.xpbar i,.meter i{display:block;height:100%;background:linear-gradient(90deg,var(--acc),var(--acc2))}
.meter i{background:linear-gradient(90deg,var(--good),var(--acc))}
.statgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-top:14px}
.st{background:#0e1533;border:1px solid var(--line);border-radius:12px;padding:12px;text-align:center}
.st b{display:block;font-size:22px}.st span{color:var(--dim);font-size:11px;text-transform:uppercase}
@media(max-width:560px){.statgrid{grid-template-columns:repeat(2,1fr)}}
.secbar{margin:10px 0}.secbar-top{display:flex;justify-content:space-between;font-weight:700;font-size:14px}
.badges{display:grid;grid-template-columns:repeat(auto-fill,minmax(90px,1fr));gap:10px}
.badge{background:#0e1533;border:1px solid var(--line);border-radius:12px;padding:12px 6px;text-align:center;opacity:.35;filter:grayscale(1)}
.badge.on{opacity:1;filter:none;border-color:var(--gold)}
.badge .be{font-size:24px}.badge .bn{font-size:11px;font-weight:800;margin-top:4px}
.dash-actions{display:flex;gap:10px;flex-wrap:wrap;margin:6px 0 18px}
.scores{width:100%;border-collapse:collapse}
.scores th,.scores td{padding:8px;border-bottom:1px solid var(--line);text-align:left;font-size:14px}
.scores th{color:var(--dim);font-weight:700}

/* test */
.tick{list-style:none;padding:0}.tick li{padding-left:26px;position:relative;margin:8px 0;color:#d7e0ff}
.tick li::before{content:'✓';position:absolute;left:0;color:var(--good);font-weight:800}
.testnav{display:flex;align-items:center;gap:12px;margin-top:16px;justify-content:space-between}
.tdots{display:flex;gap:5px;flex-wrap:wrap;flex:1;justify-content:center}
.tdot{width:12px;height:12px;border-radius:50%;background:#26325c;cursor:pointer}
.tdot.a{background:var(--acc)}.tdot.cur{outline:2px solid var(--gold);outline-offset:1px}
.bigscore{font-size:56px;font-weight:800;color:var(--gold);line-height:1}
.scoresplit{display:flex;gap:20px;justify-content:center;margin-top:12px}
.scoresplit b{display:block;font-size:26px;color:var(--acc)}.scoresplit span{color:var(--dim);font-size:12px}

/* forms */
.form label{display:block;font-weight:600;margin:12px 0 0;font-size:14px}
.form input,.form select{width:100%;margin-top:6px;padding:12px 14px;border-radius:12px;background:#0d1430;border:1px solid var(--line);color:var(--ink);font-size:16px}
.form input:focus,.form select:focus{outline:none;border-color:var(--acc)}
.form .btn{margin-top:18px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media(max-width:520px){.grid2{grid-template-columns:1fr}}
.check{display:flex!important;gap:10px;align-items:flex-start;font-weight:500!important;margin-top:14px}
.check input{width:auto!important;margin-top:3px}
.parentbox{border:1px solid var(--line);border-radius:12px;padding:14px;margin-top:16px}
.parentbox legend{padding:0 8px;font-weight:800}
.danger{border-color:rgba(255,107,125,.5)}

/* footer */
.site-foot{border-top:1px solid var(--line);margin-top:40px;background:rgba(9,12,26,.6)}
.foot-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:24px;padding:34px 18px}
.foot-grid h4{color:var(--mut);text-transform:uppercase;font-size:12px;letter-spacing:1px}
.foot-grid a{display:block;color:var(--dim);padding:3px 0;font-size:14px}
.foot-grid a:hover{color:var(--ink)}
.foot-legal{border-top:1px solid var(--line);padding:16px 18px}
@media(max-width:760px){.foot-grid{grid-template-columns:1fr 1fr}}
@media(max-width:460px){.foot-grid{grid-template-columns:1fr}}

/* cookie banner */
.cookie-banner{position:fixed;bottom:0;left:0;right:0;background:var(--bg2);border-top:1px solid var(--line);z-index:60}
.cookie-row{display:flex;align-items:center;gap:16px;padding:12px 18px}
.cookie-row p{margin:0;font-size:13px;color:var(--mut)}
.cookie-row .btn-sm{white-space:nowrap;background:linear-gradient(90deg,var(--acc),var(--acc2));color:#08122b;font-weight:800;border:0}

/* toast + floating music */
.toast{position:fixed;left:50%;bottom:80px;transform:translateX(-50%) translateY(20px);opacity:0;background:var(--card2);border:1px solid var(--gold);color:var(--ink);padding:12px 18px;border-radius:12px;font-weight:700;z-index:70;transition:.35s;max-width:90%;text-align:center}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
.float-music{position:fixed;right:16px;bottom:16px;width:52px;height:52px;border-radius:50%;border:1px solid var(--line);background:var(--card2);color:var(--ink);font-size:22px;cursor:pointer;z-index:55;box-shadow:var(--shadow)}
.music-panel{position:fixed;right:16px;bottom:78px;background:var(--card2);border:1px solid var(--line);border-radius:14px;padding:14px;z-index:56;box-shadow:var(--shadow);width:250px}
.mp-head{display:flex;justify-content:space-between;font-weight:800;margin-bottom:10px}
.mp-x{background:none;border:0;color:var(--mut);font-size:16px;cursor:pointer}
.mp-opts{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.mp-opts button{background:#0e1533;border:1px solid var(--line);color:var(--ink);border-radius:10px;padding:10px;cursor:pointer;font-size:13px;font-weight:600}
.mp-opts button.on{border-color:var(--acc);background:rgba(110,231,255,.12)}
.mp-note{color:var(--dim);font-size:11px;margin-top:10px}

/* legal pages */
.legal-body{max-width:820px}
.legal-body h2{margin-top:28px}
.legal-body h3{margin-top:20px;color:var(--acc)}
.legal-body p,.legal-body li{color:#d7e0ff}
.legal-body{padding-bottom:40px}
.updated{color:var(--dim);font-size:14px}
.toc{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:14px 18px}
.toc a{display:block;padding:3px 0}