/* ═══════════════════════════════════════════════════════════════
   EduGame · style.css — Full UI + Animations
   EduHindi.in · Mission Shikshan Samvad
═══════════════════════════════════════════════════════════════ */

/* ── TOKENS ────────────────────────────────────────────────── */
:root{
  --bg:        #090E1C;
  --surf:      #111827;
  --card:      #162033;
  --ink:       #1C2B4A;
  --border:    #243660;
  --saffron:   #FF9500;
  --saf-dim:   rgba(255,149,0,.12);
  --chalk:     #DCE7FF;
  --fog:       #4F6080;
  --ok:        #22C55E;
  --ok-dim:    rgba(34,197,94,.12);
  --err:       #EF4444;
  --err-dim:   rgba(239,68,68,.12);
  --warn:      #F59E0B;
  --c-r:#7C3AED; --cr:#7C3AED44;
  --c-m:#0EA5E9; --cm:#0EA5E944;
  --c-s:#10B981; --cs:#10B98144;
  --c-ss:#F59E0B;--css:#F59E0B44;
  --r16:16px;--r12:12px;--r8:8px;--r6:6px;
  --nav-h:62px;
  --shadow-lg:0 20px 48px rgba(0,0,0,.5);
  --shadow-md:0 8px 24px rgba(0,0,0,.35);
  --transition:.22s cubic-bezier(.4,0,.2,1);
}

/* ── LIGHT THEME (Day Mode) ───────────────────────────────── */
:root[data-theme="light"]{
  --bg:        #F4F6FB;
  --surf:      #FFFFFF;
  --card:      #FFFFFF;
  --ink:       #E4E9F5;
  --border:    #DCE3F2;
  --saffron:   #E8820A;
  --saf-dim:   rgba(232,130,10,.10);
  --chalk:     #16213E;
  --fog:       #6B7896;
  --ok:        #16A34A;
  --ok-dim:    rgba(22,163,74,.10);
  --err:       #DC2626;
  --err-dim:   rgba(220,38,38,.10);
  --warn:      #D97706;
  --c-r:#7C3AED; --cr:#7C3AED22;
  --c-m:#0284C7; --cm:#0284C722;
  --c-s:#059669; --cs:#05966922;
  --c-ss:#D97706;--css:#D9770622;
  --shadow-lg:0 20px 48px rgba(30,41,80,.14);
  --shadow-md:0 8px 24px rgba(30,41,80,.10);
}
:root[data-theme="light"] .topnav{background:rgba(244,246,251,.92)}
:root[data-theme="light"] .subj-card,
:root[data-theme="light"] .topic-card,
:root[data-theme="light"] .q-card,
:root[data-theme="light"] .stat-card,
:root[data-theme="light"] .xp-bar-wrap,
:root[data-theme="light"] .auth-card,
:root[data-theme="light"] .end-screen{box-shadow:0 2px 10px rgba(30,41,80,.06)}
:root[data-theme="light"] .cv-face{background:linear-gradient(145deg,#EAF0FF,#D8E2FA)}
:root[data-theme="light"] ::-webkit-scrollbar-track{background:var(--bg)}
html{transition:background-color .3s ease}
body,.topnav,.card,.q-card,.subj-card,.topic-card{transition:background-color .3s ease,border-color .3s ease,color .3s ease}

/* ── THEME TOGGLE BUTTON ──────────────────────────────────── */
.theme-toggle{position:relative;width:44px;height:26px;border-radius:14px;background:var(--ink);border:1.5px solid var(--border);cursor:pointer;flex-shrink:0;transition:background .3s ease}
.theme-toggle .tt-knob{position:absolute;top:2px;left:2px;width:18px;height:18px;border-radius:50%;background:var(--saffron);display:flex;align-items:center;justify-content:center;font-size:.62rem;transition:transform .3s cubic-bezier(.4,0,.2,1),background .3s ease}
:root[data-theme="light"] .theme-toggle .tt-knob{transform:translateX(18px);background:#FDB022}
:root[data-theme="light"] .theme-toggle{background:#DCE3F2}

/* ── RESET ─────────────────────────────────────────────────── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-tap-highlight-color:transparent}
body{font-family:'Inter','Segoe UI',sans-serif;background:var(--bg);color:var(--chalk);min-height:100vh;overflow-x:hidden}
a{color:inherit;text-decoration:none}button{font-family:inherit;cursor:pointer;border:none;background:none}
input,select,textarea{font-family:inherit}
img,svg{display:block;max-width:100%}
.hi{font-family:'Noto Sans Devanagari','Mangal',sans-serif}
.baloo{font-family:'Baloo 2',system-ui,sans-serif}
::-webkit-scrollbar{width:5px;height:5px}
::-webkit-scrollbar-track{background:var(--surf)}
::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}

/* ── NAVIGATION ───────────────────────────────────────────── */
.topnav{position:sticky;top:0;z-index:300;background:rgba(9,14,28,.88);border-bottom:1px solid var(--border);backdrop-filter:blur(16px);height:var(--nav-h)}
.tn-inner{max-width:1280px;margin:0 auto;padding:0 20px;height:100%;display:flex;align-items:center;gap:20px}
.tn-brand{display:flex;align-items:center;gap:8px;flex-shrink:0}
.brand-icon{width:36px;height:36px;border-radius:10px;background:var(--saffron);display:flex;align-items:center;justify-content:center;font-size:1.1rem}
.brand-name{font-size:1.15rem;font-weight:800;color:var(--saffron)}
.brand-sub{font-size:.62rem;color:var(--fog);display:none}
.tn-links{display:flex;align-items:center;gap:4px;flex:1}
.tn-links a{padding:7px 12px;border-radius:var(--r8);font-size:.8rem;font-weight:600;color:var(--fog);transition:var(--transition);white-space:nowrap}
.tn-links a:hover,.tn-links a.active{color:var(--chalk);background:rgba(255,149,0,.08)}
.tn-links a.active{color:var(--saffron)}
.tn-user{display:flex;align-items:center;gap:10px;flex-shrink:0;position:relative}
.user-pill{display:flex;align-items:center;gap:8px;padding:6px 12px;border:1.5px solid var(--saffron);border-radius:20px;cursor:pointer;transition:var(--transition);background:var(--saf-dim)}
.user-pill:hover{background:rgba(255,149,0,.2)}
.up-icon{font-size:1.1rem}.up-name{font-size:.8rem;font-weight:700}.up-xp{font-size:.7rem;font-weight:700}
.user-menu{display:none;position:absolute;top:calc(100% + 10px);right:0;background:var(--card);border:1px solid var(--border);border-radius:var(--r12);min-width:200px;overflow:hidden;box-shadow:var(--shadow-lg);z-index:400}
.user-menu.show{display:block;animation:fadeIn .15s ease}
.um-header{padding:14px 16px;background:var(--surf);border-bottom:1px solid var(--border)}
.umh-name{font-size:.9rem;font-weight:700}.umh-lvl{font-size:.72rem;font-weight:700;margin-top:2px}
.user-menu a{display:flex;align-items:center;gap:8px;padding:11px 16px;font-size:.82rem;font-weight:600;color:var(--chalk);transition:.15s}
.user-menu a:hover{background:var(--saf-dim);color:var(--saffron)}
.um-logout{color:var(--err)!important}.um-logout:hover{background:var(--err-dim)!important}
.btn-login{padding:8px 18px;border:1.5px solid var(--saffron);border-radius:20px;color:var(--saffron);font-size:.82rem;font-weight:700;transition:var(--transition)}
.btn-login:hover{background:var(--saffron);color:#000}
.hamburger{display:none;padding:8px;color:var(--chalk);font-size:1.3rem}

/* ── MOBILE DRAWER ────────────────────────────────────────── */
.mob-drawer{position:fixed;top:0;left:-280px;width:280px;height:100%;background:var(--card);z-index:500;transition:.3s;border-right:1px solid var(--border);overflow-y:auto}
.mob-drawer.open{left:0}
.mob-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.6);z-index:499}
.mob-overlay.show{display:block}
.mdr-header{display:flex;align-items:center;justify-content:space-between;padding:16px;border-bottom:1px solid var(--border)}
.mdr-user{padding:14px 16px;background:var(--surf);border-bottom:1px solid var(--border)}
.mdr-lv{font-size:.7rem;color:var(--saffron);font-weight:700;letter-spacing:.08em;text-transform:uppercase}
.mdr-name{font-size:1rem;font-weight:700;margin:3px 0}.mdr-xp{font-size:.75rem;color:var(--fog)}
.mdr-links{padding:8px 0}
.mdr-links a{display:flex;align-items:center;gap:10px;padding:12px 16px;font-size:.88rem;font-weight:600;color:var(--fog);transition:.15s;border-left:3px solid transparent}
.mdr-links a:hover{color:var(--chalk);background:rgba(255,149,0,.06);border-left-color:var(--saffron)}
.mdr-login{margin:12px 16px;padding:10px;text-align:center;background:var(--saffron);color:#000!important;border-radius:var(--r8);font-weight:700;display:block!important}

/* ── PAGE LAYOUT ──────────────────────────────────────────── */
.page-body{max-width:1280px;margin:0 auto;padding:28px 20px 60px}
.page-hero{margin-bottom:28px}
.hero-eye{font-size:.65rem;letter-spacing:.14em;text-transform:uppercase;color:var(--fog);font-weight:700;margin-bottom:8px;display:flex;align-items:center;gap:6px}
.hero-title{font-family:'Baloo 2',sans-serif;font-size:2rem;font-weight:800;line-height:1.15}
.hero-title span{color:var(--saffron)}
.hero-sub{font-size:.9rem;color:var(--fog);margin-top:8px;line-height:1.6}

/* ── SUBJECT CARDS (home) ─────────────────────────────────── */
.subject-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:16px;margin-bottom:32px}
.subj-card{background:var(--card);border:1.5px solid var(--border);border-radius:var(--r16);padding:22px;cursor:pointer;transition:transform .2s,box-shadow .2s,border-color .2s;position:relative;overflow:hidden;display:block}
.subj-card::before{content:'';position:absolute;inset:0;opacity:0;transition:opacity .3s;border-radius:var(--r16)}
.subj-card:hover{transform:translateY(-5px)}
.subj-card.r:hover{border-color:var(--c-r);box-shadow:0 16px 40px rgba(124,58,237,.22)}
.subj-card.m:hover{border-color:var(--c-m);box-shadow:0 16px 40px rgba(14,165,233,.22)}
.subj-card.s:hover{border-color:var(--c-s);box-shadow:0 16px 40px rgba(16,185,129,.22)}
.subj-card.ss:hover{border-color:var(--c-ss);box-shadow:0 16px 40px rgba(245,158,11,.22)}
.sc-icon{width:52px;height:52px;border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:1.6rem;margin-bottom:14px}
.sc-icon.r{background:var(--cr)}.sc-icon.m{background:var(--cm)}.sc-icon.s{background:var(--cs)}.sc-icon.ss{background:var(--css)}
.sc-name{font-family:'Baloo 2',sans-serif;font-size:1.15rem;font-weight:800}.sc-hi{font-family:'Noto Sans Devanagari',sans-serif;font-size:.8rem;color:var(--fog);margin-bottom:10px}
.sc-live{position:absolute;top:14px;right:14px;background:var(--saf-dim);border:1px solid var(--saffron);color:var(--saffron);font-size:.58rem;font-weight:800;padding:2px 8px;border-radius:10px;letter-spacing:.06em}
.sc-pbar{height:5px;background:var(--ink);border-radius:3px;overflow:hidden;margin-top:10px}
.sc-pfill{height:100%;border-radius:3px;transition:width 1s ease}
.sc-pfill.r{background:var(--c-r)}.sc-pfill.m{background:var(--c-m)}.sc-pfill.s{background:var(--c-s)}.sc-pfill.ss{background:var(--c-ss)}
.sc-pct{font-size:.62rem;color:var(--fog);margin-top:4px;text-align:right}

/* ── TOPIC CARDS ──────────────────────────────────────────── */
.topics-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:14px}
.topic-card{background:var(--card);border:1.5px solid var(--border);border-radius:var(--r12);padding:18px;cursor:pointer;transition:.2s;animation:cardIn .35s ease both;position:relative;overflow:hidden}
.topic-card.soon{cursor:not-allowed;opacity:.55}
.topic-card:not(.soon):hover{transform:translateY(-3px)}
.topic-card.r:not(.soon):hover{border-color:var(--c-r);box-shadow:0 8px 28px rgba(124,58,237,.22)}
.topic-card.m:not(.soon):hover{border-color:var(--c-m);box-shadow:0 8px 28px rgba(14,165,233,.22)}
.topic-card.s:not(.soon):hover{border-color:var(--c-s);box-shadow:0 8px 28px rgba(16,185,129,.22)}
.topic-card.ss:not(.soon):hover{border-color:var(--c-ss);box-shadow:0 8px 28px rgba(245,158,11,.22)}
.tc-top{display:flex;align-items:flex-start;justify-content:space-between;margin-bottom:10px}
.tc-icon{font-size:1.6rem}.tc-diff{font-size:.58rem;font-weight:800;padding:3px 9px;border-radius:10px;letter-spacing:.07em;text-transform:uppercase}
.tc-diff.easy{background:rgba(34,197,94,.12);color:var(--ok)}.tc-diff.medium{background:var(--saf-dim);color:var(--saffron)}.tc-diff.hard{background:var(--err-dim);color:var(--err)}
.tc-name{font-family:'Baloo 2',sans-serif;font-size:1.02rem;font-weight:700}.tc-hi{font-family:'Noto Sans Devanagari',sans-serif;font-size:.8rem;color:var(--fog);margin-bottom:12px}
.tc-foot{display:flex;align-items:center;justify-content:space-between}
.tc-bar{flex:1;height:4px;background:var(--ink);border-radius:2px;overflow:hidden;margin-right:8px}
.tc-bfill{height:100%;border-radius:2px;transition:width .8s ease}
.tc-bfill.r{background:var(--c-r)}.tc-bfill.m{background:var(--c-m)}.tc-bfill.s{background:var(--c-s)}.tc-bfill.ss{background:var(--c-ss)}
.tc-pct{font-size:.62rem;color:var(--fog);min-width:26px;text-align:right}
.tc-play{padding:6px 14px;border-radius:var(--r8);font-size:.72rem;font-weight:700;border:1.5px solid;transition:.18s;cursor:pointer}
.tc-play.r{border-color:var(--c-r);color:var(--c-r)}.tc-play.r:hover{background:var(--c-r);color:#fff}
.tc-play.m{border-color:var(--c-m);color:var(--c-m)}.tc-play.m:hover{background:var(--c-m);color:#fff}
.tc-play.s{border-color:var(--c-s);color:var(--c-s)}.tc-play.s:hover{background:var(--c-s);color:#fff}
.tc-play.ss{border-color:var(--c-ss);color:var(--c-ss)}.tc-play.ss:hover{background:var(--c-ss);color:#fff}
.tc-soon-lbl{font-size:.7rem;color:var(--fog);font-style:italic}
.tc-best{font-size:.63rem;font-weight:700;padding:2px 8px;border-radius:10px;background:var(--saf-dim);border:1px solid rgba(255,149,0,.25);color:var(--saffron)}

/* ── QUIZ PAGE ────────────────────────────────────────────── */
.quiz-shell{max-width:820px;margin:0 auto}
.quiz-topbar{display:flex;align-items:center;gap:12px;padding:14px 0;margin-bottom:20px;border-bottom:1px solid var(--border)}
.qtb-back{display:flex;align-items:center;gap:6px;padding:8px 14px;border:1px solid var(--border);border-radius:var(--r8);font-size:.78rem;font-weight:600;color:var(--fog);transition:.18s}
.qtb-back:hover{border-color:var(--chalk);color:var(--chalk)}
.qtb-info{flex:1}.qtb-title{font-family:'Baloo 2',sans-serif;font-size:1.25rem;font-weight:800}.qtb-hi{font-family:'Noto Sans Devanagari',sans-serif;font-size:.78rem;color:var(--fog)}
.qtb-xp{padding:6px 14px;background:var(--saf-dim);border:1px solid rgba(255,149,0,.3);border-radius:var(--r8);color:var(--saffron);font-size:.78rem;font-weight:700;white-space:nowrap}

/* ── PROGRESS BAR ─────────────────────────────────────────── */
.q-progress{display:flex;align-items:center;gap:12px;padding:12px 16px;background:var(--card);border:1px solid var(--border);border-radius:var(--r12);margin-bottom:14px}
.q-pbar{flex:1;height:7px;background:var(--ink);border-radius:4px;overflow:hidden}
.q-pfill{height:100%;background:linear-gradient(90deg,var(--c-r),var(--saffron));border-radius:4px;transition:width .5s ease}
.q-pnum{font-size:.82rem;font-weight:700;white-space:nowrap}
.q-score{font-size:.82rem;font-weight:700;color:var(--saffron);white-space:nowrap}

/* Timer ring */
.q-timer{flex-shrink:0;width:46px;height:46px;position:relative}
.q-timer svg{transform:rotate(-90deg)}
.q-timer-val{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;font-size:.78rem;font-weight:800;color:var(--saffron)}
.q-timer.urgent .q-timer-val{color:var(--err);animation:pulseRed 1s infinite}

/* ── QUESTION CARD ────────────────────────────────────────── */
.q-card{background:var(--card);border:1px solid var(--border);border-radius:var(--r16);padding:22px;animation:slideInRight .35s ease}
.q-num{font-size:.62rem;color:var(--fog);text-transform:uppercase;letter-spacing:.12em;font-weight:700;margin-bottom:6px}
.q-text{font-family:'Noto Sans Devanagari',sans-serif;font-size:1.08rem;line-height:1.7;margin-bottom:14px}
.q-opts{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:14px}
.q-opt{padding:12px 14px;border:1.5px solid var(--border);border-radius:var(--r8);background:var(--surf);color:var(--chalk);font-family:'Noto Sans Devanagari',sans-serif;font-size:.88rem;text-align:left;display:flex;align-items:center;gap:10px;transition:.18s;cursor:pointer;animation:optIn .25s ease both}
.q-opt:nth-child(1){animation-delay:.04s}.q-opt:nth-child(2){animation-delay:.08s}.q-opt:nth-child(3){animation-delay:.12s}.q-opt:nth-child(4){animation-delay:.16s}
.q-opt:hover:not(:disabled){border-color:var(--saffron);background:var(--saf-dim);transform:translateY(-1px)}
.q-opt .ol{width:28px;height:28px;border-radius:50%;background:var(--card);border:1.5px solid var(--border);display:flex;align-items:center;justify-content:center;font-size:.72rem;font-weight:800;color:var(--saffron);flex-shrink:0;transition:.18s}
.q-opt:disabled{cursor:default}
.q-opt.correct{border-color:var(--ok)!important;background:var(--ok-dim)!important;animation:correctPulse .7s ease}
.q-opt.correct .ol{background:var(--ok);border-color:var(--ok);color:#000}
.q-opt.wrong{border-color:var(--err)!important;background:var(--err-dim)!important;animation:shakeAnim .4s ease}
.q-opt.wrong .ol{background:var(--err);border-color:var(--err);color:#fff}

/* ── EXPLANATION BLOCK ────────────────────────────────────── */
.exp-block{display:none;border-radius:var(--r12);overflow:hidden;margin-bottom:14px;animation:expandDown .4s ease}
.exp-block.show{display:block}
.exp-header{display:flex;align-items:center;gap:8px;padding:10px 14px}
.exp-header.ok{background:rgba(34,197,94,.12);border:1px solid rgba(34,197,94,.25)}
.exp-header.ng{background:rgba(239,68,68,.1);border:1px solid rgba(239,68,68,.2)}
.exp-header.ok .exp-badge{color:var(--ok)}.exp-header.ng .exp-badge{color:var(--err)}
.exp-badge{font-size:.65rem;font-weight:800;letter-spacing:.1em;text-transform:uppercase;font-family:'Inter',sans-serif}
/* Visual illustration area */
.exp-visual{padding:16px 14px;background:var(--surf);border-left:3px solid;min-height:120px;display:flex;align-items:center;justify-content:center}
.exp-visual.ok{border-color:var(--ok)}.exp-visual.ng{border-color:var(--err)}
.exp-text{padding:12px 14px;font-family:'Noto Sans Devanagari',sans-serif;font-size:.88rem;line-height:1.7;background:var(--card)}
.exp-bottom{display:flex;align-items:center;justify-content:space-between;padding:10px 14px;background:var(--surf)}
.exp-correct-was{font-size:.72rem;color:var(--fog)}
.exp-correct-was strong{color:var(--ok)}

/* ── QUIZ FOOTER ──────────────────────────────────────────── */
.q-foot{display:flex;align-items:center;justify-content:space-between;margin-top:4px}
.q-att{font-size:.78rem;font-weight:700}
.q-att.ok{color:var(--ok)}.q-att.ng{color:var(--err)}
.btn-next{padding:10px 28px;border-radius:var(--r8);background:var(--c-r);color:#fff;font-size:.88rem;font-weight:700;transition:.18s}
.btn-next:hover:not(:disabled){filter:brightness(1.15)}
.btn-next:disabled{opacity:.3;cursor:default}

/* ── END SCREEN ───────────────────────────────────────────── */
.end-screen{display:none;flex-direction:column;align-items:center;gap:20px;padding:40px 24px;background:var(--card);border-radius:var(--r16);border:1px solid var(--border);text-align:center;animation:popIn .45s cubic-bezier(.34,1.56,.64,1)}
.end-screen.show{display:flex}
.end-ring-wrap{position:relative;width:140px;height:140px}
.end-ring-wrap svg{transform:rotate(-90deg)}
.end-ring-center{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center}
.end-big{font-family:'Baloo 2',sans-serif;font-size:2.6rem;font-weight:800;color:var(--saffron);line-height:1;animation:countUp .8s ease}
.end-tot{font-size:.72rem;color:var(--fog)}
.end-msg-hi{font-family:'Noto Sans Devanagari',sans-serif;font-size:1.2rem;font-weight:700}
.end-msg-en{font-size:.85rem;color:var(--fog)}
.end-xp{display:flex;align-items:center;gap:8px;padding:8px 20px;background:var(--saf-dim);border:1px solid rgba(255,149,0,.35);border-radius:20px;color:var(--saffron);font-weight:700;font-size:.9rem}
.end-badges{display:flex;gap:10px;flex-wrap:wrap;justify-content:center}
.badge-earned{display:flex;flex-direction:column;align-items:center;gap:4px;padding:10px 12px;background:var(--surf);border:1px solid var(--saffron);border-radius:var(--r12);animation:popIn .4s ease both}
.badge-earned .be-icon{font-size:1.8rem}.badge-earned .be-name{font-size:.65rem;font-weight:700;color:var(--saffron)}
.end-btns{display:flex;gap:10px;flex-wrap:wrap;justify-content:center}
.btn-retry{padding:10px 24px;background:var(--c-r);color:#fff;border-radius:var(--r8);font-weight:700;font-size:.88rem;transition:.18s}
.btn-retry:hover{filter:brightness(1.15)}
.btn-go-back{padding:10px 24px;border:1px solid var(--border);border-radius:var(--r8);color:var(--fog);font-size:.88rem;font-weight:600;transition:.18s}
.btn-go-back:hover{border-color:var(--chalk);color:var(--chalk)}

/* ════════════════════════════════════════════════════════════
   TOPIC VISUAL ILLUSTRATIONS
════════════════════════════════════════════════════════════ */

/* ── Cube visual ──────────────────────────────────────────── */
.cube-vis{display:flex;align-items:center;justify-content:center;gap:28px;flex-wrap:wrap;width:100%}
.cv-cube3d{width:90px;height:90px;perspective:380px}
.cv-cube3d-inner{width:90px;height:90px;transform-style:preserve-3d;transform:rotateX(-25deg) rotateY(40deg);animation:rotateSlow 6s linear infinite;position:relative}
.cv-face{position:absolute;width:90px;height:90px;border:2px solid rgba(255,149,0,.5);border-radius:8px;display:flex;align-items:center;justify-content:center;background:linear-gradient(145deg,#2040B8,#0F2060);backface-visibility:hidden;font-family:'Baloo 2',sans-serif;font-size:1.6rem;font-weight:800;color:var(--saffron)}
.cv-face.top{transform:rotateX(90deg) translateZ(45px)}
.cv-face.bottom{transform:rotateX(-90deg) translateZ(45px)}
.cv-face.front{transform:translateZ(45px)}
.cv-face.back{transform:rotateY(180deg) translateZ(45px)}
.cv-face.right{transform:rotateY(90deg) translateZ(45px)}
.cv-face.left{transform:rotateY(-90deg) translateZ(45px)}
.cv-pairs{display:flex;flex-direction:column;gap:6px}
.cv-pair{display:flex;align-items:center;gap:8px;padding:6px 12px;border-radius:8px;background:var(--surf);border:1px solid var(--border)}
.cv-pair .cvp-a,.cv-pair .cvp-b{width:32px;height:32px;border-radius:6px;display:flex;align-items:center;justify-content:center;font-family:'Baloo 2',sans-serif;font-weight:800;font-size:1.1rem}
.cv-pair .cvp-arrow{font-size:.9rem;color:var(--fog)}
.cv-pair.hi{border-color:var(--saffron);animation:borderPulse 1.5s ease infinite}

/* ── Number series visual ─────────────────────────────────── */
.series-vis{display:flex;align-items:center;gap:8px;flex-wrap:wrap;justify-content:center;width:100%}
.sv-box{padding:10px 16px;border-radius:10px;font-family:'Baloo 2',sans-serif;font-weight:800;font-size:1.3rem;border:2px solid var(--border);background:var(--surf);color:var(--chalk);opacity:0;animation:boxIn .3s ease forwards}
.sv-box.ans{background:var(--saffron);color:#000;border-color:transparent;animation:boxIn .3s ease forwards,ansGlow .8s .4s ease}
.sv-sep{color:var(--fog);font-size:1rem;align-self:center}
.sv-arrow{display:flex;flex-direction:column;align-items:center;gap:2px;padding:0 4px}
.sv-arrow span{font-size:.62rem;color:var(--saffron);font-weight:700}
.sv-pattern-box{padding:8px 14px;border:1px solid rgba(255,149,0,.3);border-radius:8px;background:var(--saf-dim);text-align:center;margin-top:8px;font-size:.8rem;color:var(--saffron);font-weight:600;width:100%}

/* ── Percentage visual ────────────────────────────────────── */
.pct-vis{display:flex;align-items:center;gap:24px;flex-wrap:wrap;justify-content:center;width:100%}
.pct-donut{flex-shrink:0;width:110px;height:110px;position:relative}
.pct-donut svg{transform:rotate(-90deg)}
.pct-donut-center{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center}
.pct-donut-center .pdc-val{font-family:'Baloo 2',sans-serif;font-size:1.5rem;font-weight:800;color:var(--saffron)}
.pct-donut-center .pdc-label{font-size:.58rem;color:var(--fog);font-weight:600;text-transform:uppercase}
.pct-formula{font-size:.82rem;line-height:1.8;color:var(--chalk)}
.pct-formula .f-row{display:flex;align-items:center;gap:6px;padding:4px 0}
.pct-formula .f-key{color:var(--fog);min-width:80px;font-size:.75rem}.pct-formula .f-val{font-weight:700;color:var(--saffron)}

/* ── Direction sense visual ───────────────────────────────── */
.dir-vis{display:flex;align-items:flex-start;gap:20px;flex-wrap:wrap;width:100%}
.dir-compass{width:100px;height:100px;border-radius:50%;border:2px solid var(--border);position:relative;background:var(--surf);flex-shrink:0}
.dir-compass .dc-n{position:absolute;top:7px;left:50%;transform:translateX(-50%);font-size:.68rem;font-weight:800;color:var(--err)}.dir-compass .dc-s{bottom:7px;left:50%;transform:translateX(-50%);position:absolute;font-size:.68rem;font-weight:800;color:var(--fog)}.dir-compass .dc-e{right:7px;top:50%;transform:translateY(-50%);position:absolute;font-size:.68rem;font-weight:800;color:var(--fog)}.dir-compass .dc-w{left:7px;top:50%;transform:translateY(-50%);position:absolute;font-size:.68rem;font-weight:800;color:var(--fog)}
.dir-needle{width:3px;height:40px;background:linear-gradient(to top,transparent,var(--err));border-radius:2px;position:absolute;top:50%;left:50%;transform:translate(-50%,-100%);transform-origin:bottom center;transition:transform .6s cubic-bezier(.34,1.1,.64,1)}
.dir-steps{flex:1;display:flex;flex-direction:column;gap:4px}
.dir-step{display:flex;align-items:center;gap:8px;padding:5px 10px;border-radius:7px;border:1px solid var(--border);background:var(--surf);font-family:'Noto Sans Devanagari',sans-serif;font-size:.78rem;opacity:0;animation:stepIn .3s ease forwards}
.dir-step .ds-icon{font-size:1rem;flex-shrink:0}
.dir-step.active{border-color:var(--saffron);background:var(--saf-dim)}
.dir-result{margin-top:8px;padding:8px 12px;border-radius:8px;background:rgba(34,197,94,.1);border:1px solid rgba(34,197,94,.3);font-size:.8rem;color:var(--ok);font-weight:600;font-family:'Noto Sans Devanagari',sans-serif;animation:slideInRight .4s ease}

/* ── Blood relation visual ────────────────────────────────── */
.br-vis{display:flex;flex-direction:column;align-items:center;gap:8px;width:100%;padding:8px}
.br-chain{display:flex;align-items:center;flex-wrap:wrap;justify-content:center;gap:6px}
.br-node{padding:6px 14px;border-radius:8px;font-family:'Noto Sans Devanagari',sans-serif;font-size:.82rem;font-weight:700;border:2px solid;opacity:0;animation:popIn .3s ease forwards}
.br-node.person{background:rgba(124,58,237,.15);border-color:var(--c-r);color:var(--c-r)}
.br-node.target{background:var(--saf-dim);border-color:var(--saffron);color:var(--saffron)}
.br-arrow{color:var(--saffron);font-size:1rem;opacity:0;animation:fadeIn .3s ease .2s forwards}
.br-rel{font-size:.68rem;color:var(--fog);text-align:center;font-weight:600;font-family:'Noto Sans Devanagari',sans-serif}
.br-answer-badge{padding:8px 18px;border-radius:20px;background:var(--ok-dim);border:1px solid rgba(34,197,94,.35);color:var(--ok);font-weight:700;font-size:.9rem;font-family:'Noto Sans Devanagari',sans-serif;animation:popIn .4s .3s ease both}

/* ── Mirror image visual ──────────────────────────────────── */
.mir-vis{display:flex;align-items:center;gap:16px;justify-content:center;width:100%}
.mir-side{display:flex;flex-direction:column;align-items:center;gap:6px}
.mir-side .ms-label{font-size:.62rem;color:var(--fog);text-transform:uppercase;letter-spacing:.1em;font-weight:700}
.mir-box{width:90px;height:90px;border:2px solid var(--border);border-radius:10px;display:flex;align-items:center;justify-content:center;background:var(--surf);font-size:3.5rem;font-family:serif;font-weight:bold;color:var(--c-r)}
.mir-box.result{color:var(--ok);border-color:var(--ok);background:var(--ok-dim);animation:popIn .4s ease}
.mir-line{width:3px;height:80px;background:linear-gradient(to bottom,transparent,var(--saffron),transparent);position:relative}
.mir-line::after{content:'↔';position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);color:var(--saffron);font-size:.8rem;background:var(--card);padding:2px 4px}

/* ── Profit/Loss visual ───────────────────────────────────── */
.pl-vis{display:flex;flex-direction:column;gap:10px;width:100%}
.pl-bar-row{display:flex;align-items:center;gap:10px}
.pl-lbl{font-size:.72rem;color:var(--fog);min-width:40px;text-align:right;font-weight:600}
.pl-bar{flex:1;height:24px;border-radius:6px;background:var(--ink);overflow:hidden}
.pl-fill{height:100%;border-radius:6px;display:flex;align-items:center;padding-left:8px;font-size:.72rem;font-weight:700;color:#000;transition:width 1s ease;min-width:0}
.pl-fill.cp{background:#0EA5E9}.pl-fill.sp-profit{background:var(--ok)}.pl-fill.sp-loss{background:var(--err)}
.pl-result{padding:8px 14px;border-radius:8px;font-size:.85rem;font-weight:700;text-align:center}
.pl-result.profit{background:var(--ok-dim);color:var(--ok);border:1px solid rgba(34,197,94,.3)}
.pl-result.loss{background:var(--err-dim);color:var(--err);border:1px solid rgba(239,68,68,.3)}

/* ── Formula visual (SI, LCM, etc.) ──────────────────────── */
.formula-vis{display:flex;flex-direction:column;align-items:center;gap:10px;width:100%}
.fv-card{padding:14px 20px;background:rgba(14,165,233,.08);border:1.5px solid rgba(14,165,233,.3);border-radius:var(--r12);text-align:center;font-family:'Baloo 2',sans-serif;font-size:1.1rem;font-weight:700;color:var(--c-m);animation:popIn .4s ease}
.fv-steps{display:flex;flex-direction:column;gap:5px;width:100%}
.fv-step{display:flex;align-items:center;gap:6px;padding:6px 12px;background:var(--surf);border-radius:7px;border:1px solid var(--border);font-size:.8rem;opacity:0;animation:stepIn .3s ease forwards}
.fv-step .fvs-num{width:20px;height:20px;border-radius:50%;background:var(--saffron);color:#000;display:flex;align-items:center;justify-content:center;font-size:.65rem;font-weight:800;flex-shrink:0}
.fv-step .fvs-text{font-family:'Noto Sans Devanagari',sans-serif;color:var(--chalk)}
.fv-ans{padding:8px 18px;border-radius:20px;background:var(--saf-dim);border:1px solid rgba(255,149,0,.3);color:var(--saffron);font-weight:800;font-size:1rem;font-family:'Baloo 2',sans-serif;animation:popIn .5s .3s ease both;display:inline-block}

/* ── Science visual ───────────────────────────────────────── */
.sci-vis{display:flex;flex-direction:column;align-items:center;gap:10px;width:100%;text-align:center}
.sci-icon-big{font-size:3rem;animation:bounceIn .5s ease}
.sci-fact{font-family:'Noto Sans Devanagari',sans-serif;font-size:.88rem;color:var(--chalk);line-height:1.6;padding:10px 14px;background:rgba(16,185,129,.08);border:1px solid rgba(16,185,129,.25);border-radius:var(--r8);width:100%}
.sci-formula{font-family:'Baloo 2',sans-serif;font-size:1.1rem;font-weight:700;color:var(--c-s);padding:8px 16px;background:rgba(16,185,129,.1);border-radius:8px;animation:popIn .4s ease}

/* ── History / SST visual ─────────────────────────────────── */
.hist-vis{display:flex;flex-direction:column;gap:8px;width:100%}
.hist-timeline{display:flex;flex-direction:column;gap:0;position:relative;padding-left:24px}
.hist-timeline::before{content:'';position:absolute;left:8px;top:0;bottom:0;width:2px;background:linear-gradient(to bottom,var(--saffron),transparent)}
.ht-item{display:flex;gap:10px;padding:6px 0;opacity:0;animation:stepIn .3s ease forwards}
.ht-dot{width:12px;height:12px;border-radius:50%;background:var(--saffron);position:absolute;left:3px;margin-top:3px;flex-shrink:0}
.ht-year{font-family:'Baloo 2',sans-serif;font-weight:800;color:var(--saffron);font-size:.85rem;min-width:40px}
.ht-event{font-family:'Noto Sans Devanagari',sans-serif;font-size:.78rem;color:var(--chalk);line-height:1.5}

/* ── Default visual (generic) ─────────────────────────────── */
.generic-vis{display:flex;flex-direction:column;align-items:center;gap:12px;width:100%;text-align:center}
.gv-icon{font-size:2.5rem;animation:bounceIn .5s ease}
.gv-key{font-family:'Noto Sans Devanagari',sans-serif;font-size:.9rem;color:var(--chalk);line-height:1.65;padding:10px 14px;background:rgba(255,149,0,.06);border:1px solid rgba(255,149,0,.2);border-radius:var(--r8);width:100%}

/* ════════════════════════════════════════════════════════════
   DASHBOARD, LEADERBOARD, AUTH
════════════════════════════════════════════════════════════ */

/* Stats row */
.stats-row{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:24px}
.stat-card{background:var(--card);border:1px solid var(--border);border-radius:var(--r12);padding:16px 20px;flex:1;min-width:110px;text-align:center}
.stat-val{font-family:'Baloo 2',sans-serif;font-size:2rem;font-weight:800;color:var(--saffron);line-height:1}
.stat-lbl{font-size:.65rem;color:var(--fog);text-transform:uppercase;letter-spacing:.09em;font-weight:700;margin-top:4px}

/* XP Level bar */
.xp-bar-wrap{background:var(--card);border:1px solid var(--border);border-radius:var(--r12);padding:16px 20px;margin-bottom:20px}
.xpb-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}
.xpb-level{display:flex;align-items:center;gap:8px}
.xpb-icon{font-size:1.5rem}.xpb-name{font-family:'Baloo 2',sans-serif;font-size:1.05rem;font-weight:800}.xpb-hi{font-family:'Noto Sans Devanagari',sans-serif;font-size:.75rem;color:var(--fog)}
.xpb-xp{font-weight:700;font-size:.88rem}
.xpb-bar{height:8px;background:var(--ink);border-radius:4px;overflow:hidden}
.xpb-fill{height:100%;border-radius:4px;transition:width 1.2s ease;background:linear-gradient(90deg,var(--c-r),var(--saffron))}
.xpb-next{font-size:.65rem;color:var(--fog);margin-top:5px;text-align:right}

/* Leaderboard */
.lb-table{width:100%;border-collapse:collapse}
.lb-table th{text-align:left;padding:10px 14px;font-size:.65rem;color:var(--fog);text-transform:uppercase;letter-spacing:.1em;font-weight:700;border-bottom:1px solid var(--border)}
.lb-table td{padding:12px 14px;border-bottom:1px solid rgba(36,54,96,.5);font-size:.88rem;transition:.15s}
.lb-table tr:hover td{background:rgba(255,149,0,.04)}
.lb-table .me td{background:rgba(255,149,0,.06)!important;font-weight:700}
.lb-rank{font-family:'Baloo 2',sans-serif;font-weight:800;font-size:1.05rem;color:var(--fog);width:40px}
.lb-rank.gold{color:#FFD700}.lb-rank.silver{color:#C0C0C0}.lb-rank.bronze{color:#CD7F32}
.lb-name .ln-main{font-weight:700}.lb-name .ln-sub{font-size:.7rem;color:var(--fog)}

/* Auth forms */
.auth-wrap{max-width:440px;margin:0 auto}
.auth-card{background:var(--card);border:1px solid var(--border);border-radius:var(--r16);padding:28px}
.auth-title{font-family:'Baloo 2',sans-serif;font-size:1.6rem;font-weight:800;margin-bottom:4px}
.auth-sub{font-size:.82rem;color:var(--fog);margin-bottom:22px}
.form-grp{margin-bottom:16px}
.form-grp label{display:block;font-size:.75rem;font-weight:700;color:var(--fog);margin-bottom:6px;letter-spacing:.04em}
.form-grp input,.form-grp select{width:100%;padding:11px 14px;background:var(--surf);border:1.5px solid var(--border);border-radius:var(--r8);color:var(--chalk);font-size:.9rem;transition:border-color .18s;outline:none}
.form-grp input:focus,.form-grp select:focus{border-color:var(--saffron)}
.form-grp select option{background:var(--card)}
.btn-primary{width:100%;padding:12px;border-radius:var(--r8);background:var(--saffron);color:#000;font-weight:800;font-size:1rem;transition:.18s;margin-top:4px}
.btn-primary:hover{filter:brightness(.92)}
.auth-switch{text-align:center;margin-top:16px;font-size:.82rem;color:var(--fog)}
.auth-switch a{color:var(--saffron);font-weight:700}
.alert{padding:10px 14px;border-radius:var(--r8);margin-bottom:14px;font-size:.83rem}
.alert.err{background:var(--err-dim);border:1px solid rgba(239,68,68,.3);color:var(--err)}
.alert.ok{background:var(--ok-dim);border:1px solid rgba(34,197,94,.3);color:var(--ok)}

/* Toast */
#toastBox{position:fixed;bottom:24px;right:16px;z-index:999;display:flex;flex-direction:column;gap:8px;pointer-events:none}
.toast{background:var(--card);border:1px solid var(--border);border-radius:var(--r12);padding:12px 16px;min-width:220px;max-width:320px;display:flex;align-items:center;gap:10px;font-size:.82rem;box-shadow:var(--shadow-lg);animation:toastIn .3s ease;pointer-events:all}
.toast .ti{font-size:1.2rem}.toast.leaving{animation:toastOut .3s forwards}

/* Confetti canvas */
#confetti{position:fixed;inset:0;z-index:600;pointer-events:none;display:none}

/* Admin */
.admin-table{width:100%;border-collapse:collapse}
.admin-table th,.admin-table td{padding:10px 12px;border-bottom:1px solid var(--border);font-size:.83rem;text-align:left}
.admin-table th{background:var(--surf);font-weight:700;font-size:.72rem;text-transform:uppercase;letter-spacing:.08em;color:var(--fog)}
.admin-table tr:hover td{background:rgba(255,149,0,.03)}

/* Subject hero */
.subj-hero{padding:24px;border-radius:var(--r16);margin-bottom:24px;border:1px solid}
.subj-hero.r{background:linear-gradient(135deg,rgba(124,58,237,.18),rgba(124,58,237,.04));border-color:rgba(124,58,237,.3)}
.subj-hero.m{background:linear-gradient(135deg,rgba(14,165,233,.18),rgba(14,165,233,.04));border-color:rgba(14,165,233,.3)}
.subj-hero.s{background:linear-gradient(135deg,rgba(16,185,129,.18),rgba(16,185,129,.04));border-color:rgba(16,185,129,.3)}
.subj-hero.ss{background:linear-gradient(135deg,rgba(245,158,11,.18),rgba(245,158,11,.04));border-color:rgba(245,158,11,.3)}
.sh-row{display:flex;align-items:center;gap:14px;margin-bottom:10px}
.sh-bigicon{width:56px;height:56px;border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:1.8rem}
.sh-bigicon.r{background:var(--cr)}.sh-bigicon.m{background:var(--cm)}.sh-bigicon.s{background:var(--cs)}.sh-bigicon.ss{background:var(--css)}
.sh-title{font-family:'Baloo 2',sans-serif;font-size:1.5rem;font-weight:800;line-height:1.1}
.sh-title.r{color:var(--c-r)}.sh-title.m{color:var(--c-m)}.sh-title.s{color:var(--c-s)}.sh-title.ss{color:var(--c-ss)}
.sh-subtitle{font-family:'Noto Sans Devanagari',sans-serif;font-size:.85rem;color:var(--fog);margin-top:2px}
.sh-desc{font-size:.83rem;color:var(--fog);line-height:1.6}

/* Site footer */
.site-footer{background:var(--surf);border-top:1px solid var(--border);padding:20px}
.sf-inner{max-width:1280px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px}
.sf-brand{display:flex;align-items:center;gap:8px;font-size:.82rem;color:var(--fog)}
.sf-brand a{color:var(--saffron)}
.sf-links{display:flex;gap:12px;font-size:.78rem}
.sf-links a{color:var(--fog);transition:.15s}.sf-links a:hover{color:var(--chalk)}
.sf-copy{font-size:.68rem;color:var(--fog2, #2A3855);width:100%;text-align:center}

/* ════════════════════════════════════════════════════════════
   GAME ARCADE (mini games)
════════════════════════════════════════════════════════════ */
.arcade-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px;margin-bottom:28px}
.arcade-card{position:relative;background:var(--card);border:1.5px solid var(--border);border-radius:var(--r16);padding:22px;cursor:pointer;transition:.22s;overflow:hidden}
.arcade-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-md)}
.arcade-card.rush:hover{border-color:#EF4444}
.arcade-card.match:hover{border-color:#7C3AED}
.arcade-card .ac-glow{position:absolute;top:-30px;right:-30px;width:100px;height:100px;border-radius:50%;filter:blur(30px);opacity:.35}
.arcade-card.rush .ac-glow{background:#EF4444}
.arcade-card.match .ac-glow{background:#7C3AED}
.arcade-card .ac-icon{font-size:2.2rem;margin-bottom:10px}
.arcade-card .ac-name{font-family:'Baloo 2',sans-serif;font-size:1.15rem;font-weight:800}
.arcade-card .ac-hi{font-family:'Noto Sans Devanagari',sans-serif;font-size:.8rem;color:var(--fog);margin-bottom:10px}
.arcade-card .ac-desc{font-size:.75rem;color:var(--fog);line-height:1.5;margin-bottom:12px}
.arcade-card .ac-play{display:inline-flex;align-items:center;gap:6px;padding:6px 16px;border-radius:20px;font-size:.78rem;font-weight:700;background:var(--saf-dim);color:var(--saffron);border:1px solid rgba(255,149,0,.3)}

/* ── Speed Rush ───────────────────────────────────────────── */
.rush-shell{max-width:600px;margin:0 auto;text-align:center}
.rush-hud{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px;gap:10px}
.rush-combo{font-family:'Baloo 2',sans-serif;font-size:1.6rem;font-weight:800;color:var(--saffron);transition:transform .15s}
.rush-combo.pulse{animation:comboPulse .4s ease}
.rush-timer-bar{height:8px;background:var(--ink);border-radius:4px;overflow:hidden;margin-bottom:16px}
.rush-timer-fill{height:100%;background:linear-gradient(90deg,#EF4444,#FF9500);border-radius:4px;transition:width .1s linear}
.rush-q{font-family:'Noto Sans Devanagari',sans-serif;font-size:1.15rem;font-weight:700;min-height:70px;display:flex;align-items:center;justify-content:center;padding:0 10px}
.rush-opts{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:16px}
.rush-opt{padding:16px;border-radius:var(--r12);border:2px solid var(--border);background:var(--card);font-family:'Noto Sans Devanagari',sans-serif;font-size:.92rem;font-weight:600;transition:.12s;cursor:pointer}
.rush-opt:active{transform:scale(.96)}
.rush-opt.correct{border-color:var(--ok);background:var(--ok-dim);animation:correctPulse .5s ease}
.rush-opt.wrong{border-color:var(--err);background:var(--err-dim);animation:shakeAnim .3s ease}
.rush-float{position:fixed;pointer-events:none;font-family:'Baloo 2',sans-serif;font-weight:800;font-size:1.4rem;color:var(--ok);animation:floatUp .8s ease forwards;z-index:700}
.rush-end{padding:32px 20px;background:var(--card);border-radius:var(--r16);border:1px solid var(--border)}

/* ── Memory Match ─────────────────────────────────────────── */
.match-hud{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px;font-size:.85rem;color:var(--fog)}
.match-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;max-width:480px;margin:0 auto}
.match-card{aspect-ratio:1;border-radius:var(--r12);cursor:pointer;perspective:600px}
.match-card-inner{width:100%;height:100%;position:relative;transform-style:preserve-3d;transition:transform .5s cubic-bezier(.4,0,.2,1)}
.match-card.flipped .match-card-inner,.match-card.matched .match-card-inner{transform:rotateY(180deg)}
.match-face{position:absolute;inset:0;border-radius:var(--r12);display:flex;align-items:center;justify-content:center;backface-visibility:hidden;padding:6px;text-align:center}
.match-front{background:linear-gradient(145deg,var(--card),var(--ink));border:1.5px solid var(--border);font-size:1.4rem;color:var(--saffron)}
.match-back{background:var(--saf-dim);border:1.5px solid var(--saffron);transform:rotateY(180deg);font-family:'Noto Sans Devanagari',sans-serif;font-size:.72rem;font-weight:700;color:var(--chalk)}
.match-card.matched .match-back{background:var(--ok-dim);border-color:var(--ok);color:var(--ok)}
.match-card.mismatch .match-card-inner{animation:shakeAnim .35s ease}

/* ════════════════════════════════════════════════════════════
   ANIMATIONS
════════════════════════════════════════════════════════════ */
@keyframes slideInRight{from{opacity:0;transform:translateX(50px)}to{opacity:1;transform:translateX(0)}}
@keyframes optIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}
@keyframes popIn{from{opacity:0;transform:scale(.75)}to{opacity:1;transform:scale(1)}}
@keyframes bounceIn{0%{transform:scale(.5);opacity:0}70%{transform:scale(1.1)}100%{transform:scale(1);opacity:1}}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
@keyframes cardIn{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}
@keyframes expandDown{from{max-height:0;opacity:0}to{max-height:600px;opacity:1}}
@keyframes correctPulse{0%{box-shadow:0 0 0 0 rgba(34,197,94,.6)}50%{box-shadow:0 0 0 12px rgba(34,197,94,.2)}100%{box-shadow:0 0 0 0 rgba(34,197,94,0)}}
@keyframes shakeAnim{0%,100%{transform:translateX(0)}25%{transform:translateX(-7px)}75%{transform:translateX(7px)}}
@keyframes pulseRed{0%,100%{opacity:1}50%{opacity:.5}}
@keyframes borderPulse{0%,100%{box-shadow:0 0 0 0 rgba(255,149,0,.4)}50%{box-shadow:0 0 0 6px rgba(255,149,0,.15)}}
@keyframes rotateSlow{from{transform:rotateX(-25deg) rotateY(40deg)}to{transform:rotateX(-25deg) rotateY(400deg)}}
@keyframes boxIn{from{opacity:0;transform:scale(.7) translateY(8px)}to{opacity:1;transform:scale(1) translateY(0)}}
@keyframes ansGlow{0%,100%{box-shadow:0 0 0 0 rgba(255,149,0,.5)}50%{box-shadow:0 0 0 10px rgba(255,149,0,.25)}}
@keyframes stepIn{from{opacity:0;transform:translateX(-12px)}to{opacity:1;transform:translateX(0)}}
@keyframes countUp{from{transform:scale(0.5) rotate(-10deg);opacity:0}60%{transform:scale(1.15) rotate(2deg)}to{transform:scale(1) rotate(0);opacity:1}}
@keyframes toastIn{from{opacity:0;transform:translateX(40px)}to{opacity:1;transform:translateX(0)}}
@keyframes toastOut{to{opacity:0;transform:translateX(40px)}}
@keyframes comboPulse{0%{transform:scale(1)}50%{transform:scale(1.35)}100%{transform:scale(1)}}
@keyframes floatUp{from{opacity:1;transform:translateY(0)}to{opacity:0;transform:translateY(-60px)}}

/* ── RESPONSIVE ───────────────────────────────────────────── */
@media(max-width:900px){
  .tn-links{display:none}.hamburger{display:flex}
  .q-opts{grid-template-columns:1fr}.mir-vis{flex-direction:column;align-items:center}
  .mir-line{width:100%;height:3px;background:linear-gradient(to right,transparent,var(--saffron),transparent);transform:none}
  .mir-line::after{top:50%;left:50%}
}
@media(max-width:640px){
  .page-body{padding:16px 14px 50px}
  .subject-grid{grid-template-columns:1fr 1fr}.stats-row .stat-card{min-width:80px}
  .q-opts{grid-template-columns:1fr}.quiz-topbar{flex-wrap:wrap}
  .topics-grid{grid-template-columns:1fr}.sf-links{display:none}
  .match-grid{grid-template-columns:repeat(3,1fr)}
  .rush-opts{grid-template-columns:1fr}
}
@media(max-width:400px){.subject-grid{grid-template-columns:1fr}}
@media(prefers-reduced-motion:reduce){*{animation-duration:.01ms!important;transition-duration:.01ms!important}}