/* Layout: one phone-width app column; on wide screens a quiet product panel sits beside it. Feed is always immersive indigo; other views follow the viewer's theme. */
:root{
  --indigo:#1d2a6b; --indigo-deep:#111a4a; --kola:#e8a33d; --leaf:#1f8a5b; --laterite:#c4553a; --teal:#1a8a8f;
  --paper:#f6f4ee; --surface:#ffffff; --ink:#151a33; --muted:#5c6280; --line:#e2e0d8; --chip:#ecebf4;
  --good:#1f8a5b; --bad:#c4423a; --warn:#b7791f;
  --display:"Bricolage Grotesque", "Segoe UI", system-ui, sans-serif;
  --body:"Figtree", "Segoe UI", system-ui, sans-serif;
  --mono:"IBM Plex Mono", ui-monospace, Menlo, monospace;
}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){--paper:#0e1230;--surface:#161b3d;--ink:#eef0fb;--muted:#a3a8c7;--line:#262c55;--chip:#20264d;color-scheme:dark}}
:root[data-theme="dark"]{--paper:#0e1230;--surface:#161b3d;--ink:#eef0fb;--muted:#a3a8c7;--line:#262c55;--chip:#20264d;color-scheme:dark}
html,body{height:100%}
body{background:var(--paper);color:var(--ink);font-family:var(--body);font-size:15px;line-height:1.5;-webkit-font-smoothing:antialiased}
button{font:inherit;color:inherit}
:focus-visible{outline:3px solid var(--kola);outline-offset:2px}
.stage{height:100%;display:flex;justify-content:center;gap:56px;align-items:stretch;padding-left:max(0px, env(safe-area-inset-left, 0px));padding-right:max(0px, env(safe-area-inset-right, 0px))}
.pitch{display:none;max-width:380px;align-self:center;padding-block:32px}
.pitch .mark{display:flex;align-items:center;gap:10px;font-family:var(--display);font-weight:800;font-size:22px}
.pitch h1{font-family:var(--display);font-size:46px;line-height:1.02;letter-spacing:-.02em;margin:22px 0 14px;text-wrap:balance}
.pitch p{color:var(--muted);margin:0 0 18px}
.pitch ul{list-style:none;padding:0;margin:0 0 22px;display:grid;gap:10px}
.pitch li{display:flex;gap:10px;align-items:flex-start}
.pitch li i{flex:none;width:8px;height:8px;border-radius:2px;background:var(--kola);margin-top:8px;transform:rotate(45deg)}
.pitch small{font-family:var(--mono);font-size:11px;letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}
@media (min-width:980px){.pitch{display:block}.stage{padding-block:24px}.phone{border-radius:28px;box-shadow:0 30px 80px -30px rgba(17,26,74,.45);border:1px solid var(--line)}}
.phone{position:relative;width:100%;max-width:430px;height:100%;background:var(--paper);overflow:hidden;display:flex;flex-direction:column}
.logo{width:30px;height:30px;flex:none;border-radius:8px;background:var(--indigo);position:relative;overflow:hidden}
.logo::before{content:"";position:absolute;inset:7px 6px 9px;border:2.5px solid var(--kola);border-top:none;border-radius:0 0 10px 10px}
.logo::after{content:"";position:absolute;left:50%;top:6px;bottom:9px;width:2.5px;margin-left:-1.25px;background:var(--kola)}
.views{flex:1;position:relative;min-height:0}
.view{position:absolute;inset:0;overflow-y:auto;-webkit-overflow-scrolling:touch}
.pad{padding:16px max(16px, env(safe-area-inset-left, 0px)) 24px max(16px, env(safe-area-inset-right, 0px))}
.tabbar{flex:none;display:grid;grid-template-columns:repeat(5,1fr);background:var(--surface);border-top:1px solid var(--line);padding-bottom:env(safe-area-inset-bottom,0px)}
.tabbar button{background:none;border:0;padding:9px 2px 8px;display:flex;flex-direction:column;align-items:center;gap:3px;font-size:11px;font-weight:600;color:var(--muted);cursor:pointer}
.tabbar svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.tabbar button[aria-current="page"]{color:var(--ink)}
.tabbar button[aria-current="page"] svg{stroke:var(--kola)}
.feedmode .tabbar{background:#0b1030;border-top-color:#1b2250}
.feedmode .tabbar button{color:#8d93bd}.feedmode .tabbar button[aria-current="page"]{color:#fff}

/* Feed */
.feedtop{position:absolute;z-index:5;left:0;right:0;top:0;padding:10px 12px 8px;display:flex;flex-direction:column;gap:8px;background:linear-gradient(#0b1030ee,#0b103000);pointer-events:none}
.feedtop>*{pointer-events:auto}
.feedtop .row{display:flex;align-items:center;justify-content:space-between;gap:8px;color:#fff}
.classchip{display:inline-flex;align-items:center;gap:8px;background:#ffffff1f;border:1px solid #ffffff2e;border-radius:999px;padding:5px 12px 5px 6px;font-weight:600;font-size:13px;color:#fff;cursor:pointer}
.classchip .logo{width:22px;height:22px;border-radius:6px}
.classchip .logo::before{inset:5px 4px 6px;border-width:2px}.classchip .logo::after{top:4px;bottom:6px;width:2px;margin-left:-1px}
.xp{font-family:var(--mono);font-size:12px;color:#fff;display:flex;align-items:center;gap:6px;background:#ffffff14;border-radius:999px;padding:5px 10px}
.flame{width:11px;height:11px;background:var(--kola);border-radius:50% 0 50% 50%;transform:rotate(-45deg);position:relative;margin:2px 2px 0}
.flame::after{content:"";position:absolute;inset:3px;border-radius:50% 0 50% 50%;background:#fff5}
.chips{display:flex;gap:6px;overflow-x:auto;scrollbar-width:none;padding-bottom:2px}
.chips::-webkit-scrollbar{display:none}
.chips button{flex:none;border:0;border-radius:999px;padding:6px 13px;font-size:13px;font-weight:600;background:#ffffff14;color:#d9dcf2;cursor:pointer}
.chips button[aria-pressed="true"]{background:#fff;color:var(--indigo-deep)}
.feed{scroll-snap-type:y mandatory;background:#0b1030;overscroll-behavior:contain}
.card{position:relative;height:100%;scroll-snap-align:start;scroll-snap-stop:always;overflow:hidden;color:#fff;display:flex;flex-direction:column;justify-content:flex-end;padding:120px 76px 28px max(20px, env(safe-area-inset-left, 0px))}
.card .bg{position:absolute;inset:0;z-index:0}
.card .bg::before{content:"";position:absolute;inset:-20%;opacity:.16;background:
  radial-gradient(circle at 20% 30%, transparent 0 14px, #fff 15px 16px, transparent 17px 26px, #fff 27px 28px, transparent 29px) 0 0/92px 92px,
  radial-gradient(circle, #fff 2px, transparent 3px) 46px 46px/92px 92px;transform:rotate(-8deg)}
.card .bg::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,#0000 30%,#0008 100%)}
.card>*:not(.bg):not(.rail):not(.segs):not(.swipe){position:relative;z-index:1}
[hidden]{display:none!important}
.s-maths .bg{background:radial-gradient(120% 80% at 80% 10%,#3446a8,#1d2a6b 55%,#111a4a)}
.s-english .bg{background:radial-gradient(120% 80% at 80% 10%,#f0b75a,#c9842a 50%,#7a4a12)}
.s-science .bg{background:radial-gradient(120% 80% at 80% 10%,#2fae74,#1f8a5b 55%,#0f4d33)}
.s-digital .bg{background:radial-gradient(120% 80% at 80% 10%,#29b0b5,#1a8a8f 55%,#0c4b4e)}
.s-history .bg{background:radial-gradient(120% 80% at 80% 10%,#de7457,#c4553a 55%,#6e2717)}
.segs{position:absolute;left:16px;right:16px;top:108px;display:flex;gap:4px;z-index:2}
.segs span{flex:1;height:3px;border-radius:2px;background:#ffffff40;overflow:hidden}
.segs span i{display:block;height:100%;width:0;background:#fff}
.segs span.done i{width:100%}
.meta{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-family:var(--mono);font-size:11px;letter-spacing:.06em;text-transform:uppercase;opacity:.9;margin-bottom:12px}
.meta b{background:#ffffff26;border-radius:4px;padding:3px 6px;font-weight:500}
.card h2{font-family:var(--display);font-weight:800;font-size:34px;line-height:1.02;letter-spacing:-.02em;margin:0 0 12px;text-wrap:balance}
.card p{font-size:17px;line-height:1.45;margin:0;max-width:30ch;opacity:.95}
.viz{margin:0 0 20px}
.digits{display:flex;gap:4px;flex-wrap:wrap}
.digits span{font-family:var(--display);font-weight:800;font-size:40px;line-height:1;width:34px;text-align:center;padding:8px 0;border-radius:8px;background:#ffffff14;transition:background .4s,color .4s,transform .4s}
.digits span.sep{width:10px;background:none}
.digits span.hl{background:var(--kola);color:#1b1306;transform:translateY(-6px)}
.digits small{flex-basis:100%;font-family:var(--mono);font-size:12px;margin-top:10px;opacity:.85}
.steps{display:grid;gap:8px;margin:0;padding:0;list-style:none}
.steps li{font-family:var(--display);font-weight:700;font-size:21px;line-height:1.2;background:#ffffff14;border-radius:10px;padding:10px 12px;opacity:0;transform:translateY(10px);transition:opacity .45s,transform .45s}
.steps li em{font-style:normal;color:var(--kola)}
.card.on .steps li{opacity:1;transform:none}
.card.on .steps li:nth-child(2){transition-delay:.9s}.card.on .steps li:nth-child(3){transition-delay:1.8s}.card.on .steps li:nth-child(4){transition-delay:2.7s}.card.on .steps li:nth-child(5){transition-delay:3.6s}
.bits{display:flex;gap:6px;align-items:flex-end}
.bits div{display:flex;flex-direction:column;align-items:center;gap:6px;font-family:var(--mono);font-size:11px;opacity:.9}
.bits b{font-family:var(--display);font-size:40px;width:48px;text-align:center;border-radius:10px;padding:6px 0;background:#ffffff14}
.bits b.one{background:var(--kola);color:#1b1306}
.rail{position:absolute;right:10px;bottom:96px;display:flex;flex-direction:column;gap:16px;z-index:3}
.rail button{background:none;border:0;display:flex;flex-direction:column;align-items:center;gap:4px;color:#fff;font-size:11px;font-weight:600;cursor:pointer}
.rail span.ic{width:46px;height:46px;border-radius:50%;background:#ffffff1f;display:grid;place-items:center;backdrop-filter:blur(6px);transition:transform .15s}
.rail button:active span.ic{transform:scale(.9)}
.rail svg{width:23px;height:23px;stroke:#fff;fill:none;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}
.rail button[aria-pressed="true"] svg{fill:var(--kola);stroke:var(--kola)}
.swipe{position:absolute;left:0;right:0;bottom:8px;text-align:center;font-size:11px;font-family:var(--mono);letter-spacing:.08em;text-transform:uppercase;opacity:0;transition:opacity .6s;z-index:2}
.card.ended .swipe{opacity:.75;animation:nudge 1.6s ease-in-out infinite}
@keyframes nudge{50%{transform:translateY(-5px)}}
.opts{display:grid;gap:8px;margin-top:16px;max-width:320px}
.opts button{text-align:left;border:1.5px solid #ffffff40;background:#ffffff12;border-radius:12px;padding:12px 14px;font-weight:600;font-size:16px;cursor:pointer;color:#fff;display:flex;gap:10px;align-items:center}
.opts button kbd{font-family:var(--mono);font-size:12px;width:22px;height:22px;display:grid;place-items:center;border-radius:6px;background:#ffffff26;flex:none}
.opts button.right{background:#1f8a5b;border-color:#5fd39f}
.opts button.wrong{background:#8c2c26;border-color:#ff9a8f}
.opts button:disabled{cursor:default}
.explain{margin-top:12px;font-size:15px;max-width:320px;background:#0006;border-radius:10px;padding:10px 12px}
.recap .big{font-family:var(--display);font-weight:800;font-size:64px;line-height:1}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:12px;padding:12px 18px;font-weight:700;cursor:pointer;background:var(--kola);color:#1b1306}
.btn.ghost{background:transparent;border:1.5px solid currentColor;color:inherit}
.btn.dark{background:var(--indigo);color:#fff}
.end{height:100%;scroll-snap-align:start;display:grid;place-items:center;color:#cfd3ef;text-align:center;padding:24px}

/* Sheets and toasts */
.sheet{position:absolute;inset:0;z-index:20;background:#0009;display:flex;align-items:flex-end}
.sheet .panel{width:100%;background:var(--surface);color:var(--ink);border-radius:20px 20px 0 0;padding:18px max(18px, env(safe-area-inset-left, 0px)) calc(20px + env(safe-area-inset-bottom,0px)) max(18px, env(safe-area-inset-right, 0px));max-height:85%;overflow:auto}
.sheet h3{font-family:var(--display);font-size:22px;margin:0 0 6px}
.sheet .grab{width:40px;height:4px;border-radius:2px;background:var(--line);margin:0 auto 14px}
.sheet textarea{width:100%;min-height:110px;border:1px solid var(--line);border-radius:12px;padding:10px;background:var(--paper);color:var(--ink);font:inherit;resize:vertical}
.opt-row{display:grid;gap:10px;margin:14px 0}
.opt-row button{display:flex;justify-content:space-between;align-items:center;gap:10px;text-align:left;background:var(--paper);border:1px solid var(--line);border-radius:14px;padding:14px;cursor:pointer}
.opt-row button span{color:var(--muted);font-size:13px}
.toast{position:absolute;left:50%;top:70px;transform:translate(-50%,-10px);z-index:30;background:#fff;color:var(--indigo-deep);font-weight:700;border-radius:999px;padding:8px 16px;box-shadow:0 10px 30px -10px #0008;opacity:0;transition:.3s;pointer-events:none;font-size:14px}
.toast.show{opacity:1;transform:translate(-50%,0)}

/* Shared light views */
.eyebrow{font-family:var(--mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.h{font-family:var(--display);font-weight:800;font-size:28px;line-height:1.05;letter-spacing:-.02em;margin:4px 0 14px;text-wrap:balance}
.seg{display:flex;background:var(--chip);border-radius:12px;padding:3px;gap:3px;margin-bottom:14px}
.seg button{flex:1;border:0;background:none;border-radius:9px;padding:8px 6px;font-weight:600;font-size:13px;cursor:pointer;color:var(--muted)}
.seg button[aria-pressed="true"]{background:var(--surface);color:var(--ink);box-shadow:0 1px 3px #0002}
.classes{display:flex;gap:8px;overflow-x:auto;scrollbar-width:none;margin:0 -16px 14px;padding:0 16px}
.classes button{flex:none;border:1px solid var(--line);background:var(--surface);border-radius:12px;padding:8px 12px;font-weight:700;cursor:pointer;text-align:left}
.classes button small{display:block;font-weight:500;font-size:11px;color:var(--muted)}
.classes button[aria-pressed="true"]{background:var(--indigo);border-color:var(--indigo);color:#fff}
.classes button[aria-pressed="true"] small{color:#c8cdf0}
.subjects{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
.subj{border:0;text-align:left;border-radius:16px;padding:14px;min-height:96px;color:#fff;cursor:pointer;display:flex;flex-direction:column;justify-content:space-between;gap:10px;position:relative;overflow:hidden}
.subj b{font-family:var(--display);font-size:17px;line-height:1.1}
.subj small{font-family:var(--mono);font-size:11px;opacity:.85}
.subj::after{content:"";position:absolute;right:-18px;top:-18px;width:70px;height:70px;border-radius:50%;border:10px solid #ffffff1c}
.weeks{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.weeks li button{width:100%;display:grid;grid-template-columns:52px 1fr auto;gap:10px;align-items:center;text-align:left;background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:11px 12px;cursor:pointer}
.weeks li button:disabled{cursor:default}
.wk{font-family:var(--mono);font-size:11px;color:var(--muted);line-height:1.2}
.wk b{display:block;font-family:var(--display);font-size:18px;color:var(--ink)}
.wt{font-weight:600;line-height:1.3;min-width:0}
.pill{font-size:11px;font-weight:700;border-radius:999px;padding:4px 8px;white-space:nowrap}
.pill.ready{background:#1f8a5b22;color:var(--good)}
.pill.prod{background:var(--chip);color:var(--muted)}
.pill.rest{background:transparent;color:var(--muted);border:1px dashed var(--line)}
.back{border:0;background:none;color:var(--muted);font-weight:600;padding:0;margin-bottom:6px;cursor:pointer}
.panel-card{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:14px}
.sample{display:inline-block;font-family:var(--mono);font-size:10px;letter-spacing:.08em;text-transform:uppercase;border:1px solid var(--line);border-radius:4px;padding:2px 6px;color:var(--muted)}

/* Practice */
.cbt-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}
.timer{font-family:var(--mono);font-size:20px;font-variant-numeric:tabular-nums;background:var(--indigo);color:#fff;border-radius:10px;padding:6px 12px}
.timer.low{background:var(--bad)}
.q{font-family:var(--display);font-size:22px;font-weight:700;line-height:1.2;margin:6px 0 14px}
.choices{display:grid;gap:8px}
.choices button{text-align:left;display:flex;gap:10px;align-items:center;background:var(--surface);border:1.5px solid var(--line);border-radius:12px;padding:12px;cursor:pointer;font-weight:600}
.choices button kbd{font-family:var(--mono);font-size:12px;width:24px;height:24px;display:grid;place-items:center;border-radius:6px;background:var(--chip);flex:none}
.choices button[aria-pressed="true"]{border-color:var(--indigo);background:#1d2a6b14}
.choices button[aria-pressed="true"] kbd{background:var(--indigo);color:#fff}
.nav-grid{display:grid;grid-template-columns:repeat(10,1fr);gap:4px;margin:16px 0}
.nav-grid button{aspect-ratio:1;max-width:100%;border:1px solid var(--line);background:var(--surface);border-radius:8px;font-family:var(--mono);font-size:12px;cursor:pointer;padding:0}
.nav-grid button.ans{background:var(--chip);border-color:var(--muted)}
.nav-grid button.cur{outline:2px solid var(--kola);outline-offset:1px}
.nav-grid button.ok{background:#1f8a5b;color:#fff;border-color:#1f8a5b}
.nav-grid button.no{background:var(--bad);color:#fff;border-color:var(--bad)}
.row-btns{display:flex;gap:8px;justify-content:space-between}

/* Progress */
.stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin-bottom:14px}
.stat{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:12px}
.stat b{display:block;font-family:var(--display);font-size:26px;line-height:1;font-variant-numeric:tabular-nums}
.stat span{font-size:12px;color:var(--muted)}
.bars{display:grid;gap:10px}
.bar{display:grid;grid-template-columns:110px 1fr 38px;gap:10px;align-items:center;font-size:13px}
.bar .track{height:8px;border-radius:4px;background:var(--chip);overflow:hidden}
.bar .track i{display:block;height:100%;border-radius:4px}
.bar em{font-style:normal;font-family:var(--mono);font-size:12px;text-align:right;color:var(--muted)}
.tablewrap{overflow-x:auto;border:1px solid var(--line);border-radius:14px;background:var(--surface)}
table{border-collapse:collapse;width:100%;min-width:430px;font-size:13px}
th,td{padding:8px 10px;text-align:right;border-bottom:1px solid var(--line);font-variant-numeric:tabular-nums;white-space:nowrap}
th:first-child,td:first-child{text-align:left}
th{font-family:var(--mono);font-size:10px;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);font-weight:500}
tr:last-child td{border-bottom:0}
.grade{font-weight:800;font-family:var(--display)}
.rc-head{display:grid;grid-template-columns:1fr auto;gap:4px 12px;margin:10px 0;font-size:13px}
.rc-head span{color:var(--muted)}

/* School */
.kpis{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;margin-bottom:14px}
.kpi{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:12px}
.kpi b{display:block;font-family:var(--display);font-size:26px;line-height:1.05;font-variant-numeric:tabular-nums}
.kpi span{font-size:12px;color:var(--muted)}
.kpi i{font-style:normal;font-size:12px;font-weight:700;color:var(--good)}
.feat{display:grid;gap:10px;margin:14px 0}
.feat div{display:grid;grid-template-columns:34px 1fr;gap:10px;align-items:start}
.feat svg{width:34px;height:34px;padding:7px;border-radius:10px;background:var(--chip);stroke:var(--indigo);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
:root[data-theme="dark"] .feat svg{stroke:var(--kola)}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]) .feat svg{stroke:var(--kola)}}
.feat b{display:block}
.feat span{font-size:13px;color:var(--muted)}
.risk{display:flex;justify-content:space-between;gap:8px;padding:10px 0;border-bottom:1px solid var(--line);font-size:14px}
.risk:last-child{border-bottom:0}
.risk span{color:var(--muted);font-size:12px}
.contact{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin-top:10px}
.contact code{font-family:var(--mono);background:var(--chip);border-radius:8px;padding:8px 10px;user-select:all}
@media (prefers-reduced-motion: reduce){*{transition:none!important;animation:none!important}.steps li{opacity:1;transform:none}}