/* ═══════════════════════════════════════════════════════════════
   إنجليزي بلس ∞  —  REDESIGN v2
   Aesthetic: Warm Editorial · Sand · Terracotta · Ink · Craft
   Inspired by: Arabic manuscript calligraphy + print magazine
   Fonts: DM Serif Display + Noto Kufi Arabic + IBM Plex Mono
   Theme: LIGHT by default, dark optional
   ═══════════════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=DM+Serif+Display:ital@0;1&family=Noto+Kufi+Arabic:wght@300;400;600;700;800;900&family=IBM+Plex+Mono:wght@400;500;700&display=swap');

/* ─── TOKENS ─── */
:root {
  --bg:   #f5f0e8;
  --bg2:  #ede7d9;
  --bg3:  #e4dccb;
  --ink:  #1a1208;
  --ink2: #3d2e1a;
  --ink3: #6b5840;
  --ink4: #9c8870;
  --ink5: #c4b49a;
  --bdr:  #c9bba4;
  --bdr2: #b5a38c;
  --terra:   #c84b2f;
  --saffron: #e8a020;
  --jade:    #2a7a5c;
  --rose:    #c2415a;
  --ok:      #2a7a5c;
  --err:     #c84b2f;
  --shadow-sm: 2px 3px 0 var(--bdr);
  --shadow-md: 4px 6px 0 var(--bdr);
  --shadow-lg: 6px 9px 0 var(--bdr2);
  --r: 6px; --rs: 4px; --rm: 8px; --rl: 12px;
  --font-ar:   'Noto Kufi Arabic', serif;
  --font-en:   'DM Serif Display', serif;
  --font-mono: 'IBM Plex Mono', monospace;
  --sidebar-w: 280px;
  --topnav-h:  58px;
}
[data-theme="dark"] {
  --bg:   #1c1510;
  --bg2:  #241c14;
  --bg3:  #2d2318;
  --ink:  #f5f0e8;
  --ink2: #e4d9c8;
  --ink3: #b8a890;
  --ink4: #7a6a54;
  --ink5: #4a3c2c;
  --bdr:  #3d3020;
  --bdr2: #50402c;
  --shadow-sm: 2px 3px 0 #0d0a06;
  --shadow-md: 4px 6px 0 #0d0a06;
  --shadow-lg: 6px 9px 0 #0d0a06;
  --terra:   #e0613d;
  --saffron: #f0b030;
  --jade:    #38a070;
}

/* ─── RESET ─── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-ar);
  background:var(--bg);
  color:var(--ink);
  min-height:100vh;
  direction:rtl;
  overflow-x:hidden;
  /* subtle paper grain */
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='200' height='200' filter='url(%23n)' opacity='0.03'/%3E%3C/svg%3E");
  transition:background-color .3s,color .3s;
}
a{color:var(--terra);text-decoration:none;cursor:pointer}
button{cursor:pointer;font-family:var(--font-ar)}
input,textarea{font-family:var(--font-ar)}

#bg-canvas{position:fixed;inset:0;z-index:0;pointer-events:none;opacity:.1}

/* ─── SCREENS ─── */
.screen{display:none;position:fixed;inset:0;z-index:10;overflow-y:auto}
.screen.active{display:flex;flex-direction:column}

/* ═══════════════════════════════════
   INTRO
═══════════════════════════════════ */
#screen-intro{
  background:var(--bg);
  align-items:center;
  justify-content:center;
  gap:1.8rem;
  z-index:1000;
  overflow:hidden;
}
#screen-intro::before,
#screen-intro::after{
  content:'';position:absolute;
  width:320px;height:320px;
  border:2px solid var(--terra);
  opacity:.08;border-radius:50%;
}
#screen-intro::before{top:-100px;right:-100px}
#screen-intro::after{bottom:-100px;left:-100px}
.intro-logo{
  position:relative;width:100px;height:100px;
  display:flex;align-items:center;justify-content:center;
}
.logo-ring{
  position:absolute;border-radius:50%;
  border:2px solid var(--terra);
  animation:spinRing 4s linear infinite;
}
.logo-ring.r1{width:100px;height:100px;opacity:.2}
.logo-ring.r2{width:74px;height:74px;opacity:.45;border-color:var(--saffron);animation-direction:reverse;animation-duration:3s}
.logo-ring.r3{width:50px;height:50px;opacity:.7;border-color:var(--jade);animation-duration:2s}
@keyframes spinRing{to{transform:rotate(360deg)}}
.logo-symbol{font-family:var(--font-en);font-size:2.2rem;color:var(--terra);font-style:italic;position:relative;z-index:2}
.intro-wordmark{font-size:2rem;font-weight:900;color:var(--ink);letter-spacing:-.5px}
.intro-wordmark span{color:var(--terra)}
.intro-tagline{font-size:.84rem;color:var(--ink3);font-weight:600;letter-spacing:1.5px;text-transform:uppercase}
.intro-loader{width:160px;height:3px;background:var(--bdr);overflow:hidden}
.intro-loader-fill{height:100%;width:0%;background:var(--terra);transition:width .1s linear}

/* ═══════════════════════════════════
   AUTH
═══════════════════════════════════ */
#screen-auth{
  background:var(--bg);
  align-items:center;justify-content:center;
  padding:2rem 1rem;
  overflow:hidden;
}
#screen-auth::before{
  content:'∞';
  position:fixed;
  font-family:var(--font-en);
  font-size:50vw;color:var(--terra);opacity:.03;
  top:50%;left:50%;
  transform:translate(-50%,-50%);
  pointer-events:none;line-height:1;font-style:italic;
}
.auth-bg{display:none}
.auth-box{
  background:var(--bg2);
  border:2px solid var(--bdr);
  border-radius:var(--rl);
  padding:2.5rem 2rem;
  width:100%;max-width:420px;
  position:relative;z-index:2;
  box-shadow:var(--shadow-lg);
}
.auth-box::before{
  content:'';position:absolute;
  top:-2px;left:-2px;right:-2px;height:5px;
  background:repeating-linear-gradient(
    90deg,var(--terra) 0 20px,var(--saffron) 20px 40px,
    var(--jade) 40px 60px,var(--rose) 60px 80px);
  border-radius:var(--rl) var(--rl) 0 0;
}
.auth-logo{display:flex;align-items:center;gap:.6rem;justify-content:center;margin-bottom:2rem}
.al-sym{font-family:var(--font-en);font-size:1.8rem;color:var(--terra);font-style:italic}
.al-name{font-size:1.4rem;font-weight:900;color:var(--ink)}
.auth-panel{display:none}
.auth-panel.active{display:block;animation:fadeUp .35s ease both}
@keyframes fadeUp{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}
.ap-title{font-size:1.4rem;font-weight:900;color:var(--ink);margin-bottom:.2rem}
.ap-sub{font-size:.83rem;color:var(--ink3);margin-bottom:1.5rem}
.inp-grp{margin-bottom:1rem}
.inp-grp label{
  display:block;font-size:.7rem;font-weight:800;
  color:var(--ink2);margin-bottom:.3rem;
  text-transform:uppercase;letter-spacing:.8px;
}
.auth-inp{
  width:100%;background:var(--bg);
  border:2px solid var(--bdr);border-radius:var(--rs);
  padding:.72rem .88rem;
  font-size:.95rem;font-family:var(--font-mono);
  color:var(--ink);outline:none;
  box-shadow:var(--shadow-sm);
  transition:border-color .15s,box-shadow .15s;
}
.auth-inp:focus{border-color:var(--terra);box-shadow:3px 4px 0 var(--terra)}
.auth-err{
  background:#fdecea;
  border:2px solid var(--terra);
  border-radius:var(--rs);
  padding:.5rem .8rem;
  font-size:.78rem;color:var(--terra);font-weight:700;
  margin-bottom:1rem;
}
[data-theme="dark"] .auth-err{background:rgba(200,75,47,.12)}
.auth-err.hidden{display:none}
.auth-btn{
  width:100%;
  background:var(--terra);
  border:2px solid var(--ink2);
  border-radius:var(--rs);
  padding:.82rem;font-size:1rem;font-weight:900;
  color:#fff;
  box-shadow:var(--shadow-md);
  margin-bottom:1.2rem;
  transition:transform .12s,box-shadow .12s;
}
.auth-btn:hover{transform:translate(-2px,-2px);box-shadow:6px 8px 0 var(--ink2)}
.auth-btn:active{transform:translate(1px,1px);box-shadow:1px 2px 0 var(--ink2)}
.auth-toggle{font-size:.83rem;color:var(--ink3);text-align:center}
.auth-toggle a{color:var(--terra);font-weight:800}
.av-label{
  display:block;font-size:.7rem;font-weight:800;
  color:var(--ink2);text-transform:uppercase;letter-spacing:.8px;
  margin-bottom:.5rem;
}
.av-grid{display:flex;gap:.5rem;flex-wrap:wrap;margin-bottom:1.2rem}
.av-opt{
  width:44px;height:44px;
  border:2px solid var(--bdr);border-radius:var(--rs);
  display:flex;align-items:center;justify-content:center;
  font-size:1.3rem;cursor:pointer;
  background:var(--bg);
  box-shadow:var(--shadow-sm);
  transition:all .12s;
}
.av-opt:hover{border-color:var(--terra);transform:translate(-1px,-1px);box-shadow:3px 4px 0 var(--bdr2)}
.av-opt.sel{border-color:var(--terra);background:#fdecea;box-shadow:3px 4px 0 var(--terra)}
[data-theme="dark"] .av-opt.sel{background:rgba(200,75,47,.15)}

/* ═══════════════════════════════════
   APP SHELL
═══════════════════════════════════ */
#screen-app{display:none;flex-direction:column;position:fixed;inset:0;overflow:hidden}
#screen-app.active{display:flex}

/* SIDEBAR */
.sidebar{
  position:fixed;top:0;right:0;bottom:0;
  width:var(--sidebar-w);
  background:var(--bg2);
  border-left:2px solid var(--bdr);
  z-index:300;
  transform:translateX(100%);
  transition:transform .3s cubic-bezier(.4,0,.2,1);
  display:flex;flex-direction:column;
  padding:1.3rem 1.1rem;gap:.9rem;
  overflow-y:auto;
  box-shadow:-4px 0 0 var(--bdr2);
}
.sidebar.open{transform:translateX(0)}
.sb-mask{display:none;position:fixed;inset:0;background:rgba(26,18,8,.45);z-index:299}
.sb-mask.show{display:block}
.sb-top{display:flex;align-items:center;justify-content:space-between;padding-bottom:.9rem;border-bottom:2px solid var(--bdr)}
.sb-logo{font-size:1.05rem;font-weight:900;color:var(--terra)}
.sb-x{background:none;border:2px solid var(--bdr);border-radius:var(--rs);color:var(--ink3);font-size:.78rem;padding:3px 8px;box-shadow:var(--shadow-sm);transition:all .12s}
.sb-x:hover{border-color:var(--terra);color:var(--terra)}
.sb-user{display:flex;align-items:center;gap:.75rem;background:var(--bg3);border:2px solid var(--bdr);border-radius:var(--rm);padding:.75rem;box-shadow:var(--shadow-sm)}
.sb-avatar{font-size:1.7rem;width:44px;height:44px;background:var(--bg);border:2px solid var(--bdr);border-radius:var(--rs);display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-sm)}
.sb-uname{font-weight:900;font-size:.9rem;color:var(--ink)}
.sb-ulevel{font-size:.72rem;color:var(--terra);font-weight:700;margin-top:2px}
.sb-xp-block{background:var(--bg3);border:2px solid var(--bdr);border-radius:var(--rm);padding:.7rem;box-shadow:var(--shadow-sm)}
.sb-xp-row{display:flex;justify-content:space-between;font-size:.7rem;font-weight:800;color:var(--ink2);text-transform:uppercase;letter-spacing:.5px;margin-bottom:.45rem}
.sb-xp-track{height:8px;background:var(--bg);border:1.5px solid var(--bdr)}
.sb-xp-bar{
  height:100%;
  background:repeating-linear-gradient(
    90deg,var(--terra) 0 6px,#d4623a 6px 12px);
  transition:width .7s cubic-bezier(.34,1.2,.64,1);
}
.sb-nav{display:flex;flex-direction:column;gap:.22rem;flex:1}
.sb-navbtn{
  background:none;border:2px solid transparent;
  text-align:right;padding:.62rem .82rem;
  border-radius:var(--rs);font-size:.86rem;font-weight:700;
  color:var(--ink3);transition:all .12s;width:100%;
}
.sb-navbtn:hover{background:var(--bg3);border-color:var(--bdr);color:var(--ink);transform:translateX(-3px)}
.sb-navbtn.active{background:var(--terra);border-color:var(--ink2);color:#fff;box-shadow:var(--shadow-sm)}
.sb-actions{display:flex;flex-direction:column;gap:.35rem}
.sb-act-btn{
  background:var(--bg);border:2px solid var(--bdr);
  border-radius:var(--rs);padding:.52rem .82rem;
  font-size:.78rem;font-weight:700;color:var(--ink3);
  text-align:right;box-shadow:var(--shadow-sm);transition:all .12s;
}
.sb-act-btn:hover{border-color:var(--ink3);color:var(--ink);transform:translate(-1px,-1px);box-shadow:var(--shadow-md)}
.sb-act-btn.danger:hover{border-color:var(--terra);color:var(--terra)}

/* TOP NAV */
.topnav{
  position:fixed;top:0;left:0;right:0;
  height:var(--topnav-h);
  background:var(--bg2);
  border-bottom:2px solid var(--bdr);
  z-index:200;
  display:flex;align-items:center;justify-content:space-between;
  padding:0 1rem;gap:.8rem;
  box-shadow:0 3px 0 var(--bdr);
}
.hamburger{
  background:var(--bg);border:2px solid var(--bdr);
  border-radius:var(--rs);padding:6px 8px;
  display:flex;flex-direction:column;gap:4px;
  box-shadow:var(--shadow-sm);transition:all .12s;
}
.hamburger span{display:block;width:20px;height:2px;background:var(--ink3);transition:all .2s}
.hamburger:hover{border-color:var(--terra)}
.hamburger:hover span{background:var(--terra)}
.tn-title{font-size:1.1rem;font-weight:900;color:var(--ink);flex:1;text-align:center}
.tn-title em{font-style:normal;color:var(--terra);font-family:var(--font-en)}
.tn-chips{display:flex;gap:.4rem;align-items:center}
.tn-chip{
  background:var(--bg);border:2px solid var(--bdr);
  border-radius:4px;padding:.22rem .55rem;
  font-size:.75rem;font-weight:800;color:var(--ink3);
  font-family:var(--font-mono);
  box-shadow:var(--shadow-sm);transition:all .12s;
}
.tn-chip.gold{color:var(--saffron);border-color:var(--saffron)}
.tn-chip.bump{animation:chipBump .32s cubic-bezier(.34,1.6,.64,1)}
@keyframes chipBump{50%{transform:scale(1.18) translateY(-2px)}}

/* MAIN CONTENT */
.main-content{
  position:fixed;top:var(--topnav-h);left:0;right:0;bottom:0;
  overflow-y:auto;padding:1.5rem 1rem 5rem;z-index:10;
}
.page{display:none;animation:fadeUp .38s ease both;max-width:680px;margin:0 auto}
.page.active{display:block}

/* ═══════════════════════════════════
   HOME
═══════════════════════════════════ */
.hero-block{
  border:2px solid var(--bdr);border-radius:var(--rm);
  padding:2rem 1.7rem;margin-bottom:1.4rem;
  background:var(--bg2);box-shadow:var(--shadow-lg);
  position:relative;overflow:hidden;
}
.hero-block::after{
  content:'';position:absolute;
  top:0;right:0;width:110px;height:110px;
  background:repeating-linear-gradient(
    -45deg,var(--terra) 0,var(--terra) 2px,
    transparent 2px,transparent 10px);
  opacity:.07;
}
.hero-pill{
  display:inline-flex;align-items:center;gap:.35rem;
  background:var(--terra);border:2px solid var(--ink2);
  border-radius:3px;padding:.18rem .6rem;
  font-size:.65rem;font-weight:800;color:#fff;
  text-transform:uppercase;letter-spacing:1px;
  margin-bottom:.9rem;box-shadow:var(--shadow-sm);
}
.hero-title{
  font-size:clamp(1.9rem,5vw,3rem);font-weight:900;
  line-height:1.2;color:var(--ink);
  margin-bottom:.55rem;letter-spacing:-.5px;
}
.hero-title em{
  font-style:normal;color:var(--terra);
  background-image:linear-gradient(var(--saffron),var(--saffron));
  background-repeat:no-repeat;
  background-position:0 92%;background-size:100% 5px;
}
.hero-desc{font-size:.88rem;color:var(--ink3);line-height:1.65}

.daily-teaser{
  display:flex;align-items:center;gap:.9rem;
  background:var(--saffron);border:2px solid var(--ink2);
  border-radius:var(--rs);padding:.95rem 1.1rem;
  margin-bottom:1.7rem;cursor:pointer;
  box-shadow:var(--shadow-md);transition:all .12s;
  position:relative;overflow:hidden;
}
.daily-teaser::after{content:'';position:absolute;inset:0;background:repeating-linear-gradient(90deg,transparent 0 18px,rgba(255,255,255,.06) 18px 20px)}
.daily-teaser:hover{transform:translate(-2px,-2px);box-shadow:var(--shadow-lg)}
.daily-teaser:active{transform:translate(1px,1px);box-shadow:var(--shadow-sm)}
.dt-ico{font-size:1.7rem;z-index:1}
.dt-text{flex:1;z-index:1}
.dt-title{font-weight:900;font-size:.92rem;color:var(--ink)}
.dt-sub{font-size:.76rem;color:var(--ink2);margin-top:1px;font-weight:700}
.dt-arrow{font-size:1.1rem;color:var(--ink2);z-index:1;font-weight:900}

.sec-hd{
  display:flex;align-items:center;gap:.65rem;
  margin:0 0 .85rem;
  font-size:.65rem;font-weight:800;color:var(--ink3);
  text-transform:uppercase;letter-spacing:1.5px;
}
.sec-hd span{flex:1;height:2px;background:var(--bdr)}
.sec-hd b{color:var(--ink2);white-space:nowrap}

.levels-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:.65rem;margin-bottom:1.7rem}
.lv-card{
  background:var(--bg2);border:2px solid var(--bdr);
  border-radius:var(--rs);padding:1.3rem .95rem 1.1rem;
  cursor:pointer;box-shadow:var(--shadow-md);
  transition:transform .12s,box-shadow .12s;
  text-align:center;position:relative;overflow:hidden;
}
.lv-card:hover{transform:translate(-3px,-3px);box-shadow:7px 9px 0 var(--bdr2)}
.lv-card:active{transform:translate(1px,1px);box-shadow:var(--shadow-sm)}
.lv-card.easy::before,.lv-card.mid::before,.lv-card.hard::before,.lv-card.mix::before{
  content:'';position:absolute;top:0;left:0;right:0;height:4px;
}
.lv-card.easy::before{background:var(--jade)}
.lv-card.mid::before{background:var(--saffron)}
.lv-card.hard::before{background:var(--terra)}
.lv-card.mix::before{background:repeating-linear-gradient(90deg,var(--jade) 0 25%,var(--saffron) 25% 50%,var(--terra) 50% 75%,var(--rose) 75% 100%)}
.lvc-tag{
  position:absolute;top:.55rem;left:.55rem;
  font-size:.58rem;font-weight:800;
  font-family:var(--font-mono);
  padding:.1rem .38rem;
  border:1.5px solid var(--bdr2);
  border-radius:2px;color:var(--ink3);background:var(--bg);
}
.easy .lvc-tag{border-color:var(--jade);color:var(--jade);background:#f0faf5}
.mid  .lvc-tag{border-color:var(--saffron);color:var(--saffron);background:#fdf8ec}
.hard .lvc-tag{border-color:var(--terra);color:var(--terra);background:#fdf0ed}
[data-theme="dark"] .easy .lvc-tag{background:rgba(42,122,92,.15)}
[data-theme="dark"] .mid  .lvc-tag{background:rgba(232,160,32,.15)}
[data-theme="dark"] .hard .lvc-tag{background:rgba(200,75,47,.15)}
.lvc-ico{font-size:1.9rem;margin-bottom:.45rem;display:block;margin-top:.25rem}
.lvc-name{font-size:.95rem;font-weight:900;margin-bottom:.18rem;color:var(--ink)}
.lvc-sub{font-size:.68rem;color:var(--ink3)}

.topics-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:.5rem;margin-bottom:2rem}
@media(max-width:480px){.topics-grid{grid-template-columns:repeat(2,1fr)}}
.tp-card{
  background:var(--bg2);border:2px solid var(--bdr);
  border-radius:var(--rs);padding:.8rem .4rem;
  text-align:center;font-size:.72rem;font-weight:700;
  cursor:pointer;box-shadow:var(--shadow-sm);
  transition:all .12s;
  display:flex;flex-direction:column;align-items:center;gap:.3rem;
  color:var(--ink3);
}
.tp-card span{font-size:1.35rem}
.tp-card:hover{border-color:var(--terra);color:var(--terra);transform:translate(-2px,-2px);box-shadow:4px 5px 0 var(--bdr2)}

/* ═══════════════════════════════════
   PAGE HEADERS
═══════════════════════════════════ */
.page-hdr{padding:.4rem 0 1.4rem}
.page-hdr h2{font-size:1.5rem;font-weight:900;color:var(--ink);margin-bottom:.22rem;line-height:1}
.page-hdr p{font-size:.8rem;color:var(--ink3)}

/* ═══════════════════════════════════
   DAILY CHALLENGE
═══════════════════════════════════ */
.daily-card-big{border:2px solid var(--bdr);border-radius:var(--rm);overflow:hidden;box-shadow:var(--shadow-lg)}
.dcb-top{background:var(--terra);padding:1.7rem 1.4rem 1.4rem;display:flex;align-items:center;justify-content:space-between;position:relative;overflow:hidden}
.dcb-top::before{content:'📅';position:absolute;font-size:7rem;opacity:.1;right:-1rem;bottom:-1.5rem}
.dcb-icon{font-size:2.8rem}
.dcb-badge{background:var(--ink);color:var(--saffron);font-weight:900;font-size:.95rem;font-family:var(--font-mono);padding:.35rem .9rem;border-radius:3px}
.dcb-title{font-size:1.4rem;font-weight:900;padding:1.1rem 1.4rem .35rem;background:var(--bg2);color:var(--ink)}
.dcb-desc{font-size:.86rem;color:var(--ink3);line-height:1.65;padding:0 1.4rem 1.3rem;background:var(--bg2)}
.dcb-btn{
  display:block;width:calc(100% - 2.8rem);
  margin:0 1.4rem 1.4rem;
  background:var(--jade);border:2px solid var(--ink2);
  border-radius:var(--rs);padding:.85rem;
  font-size:.95rem;font-weight:900;color:#fff;
  box-shadow:var(--shadow-md);transition:all .12s;
}
.dcb-btn:hover{transform:translate(-2px,-2px);box-shadow:var(--shadow-lg)}
.dcb-btn:active{transform:translate(1px,1px);box-shadow:var(--shadow-sm)}
.dcb-btn:disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}

/* ═══════════════════════════════════
   ACHIEVEMENTS
═══════════════════════════════════ */
.ach-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:.65rem}
@media(min-width:500px){.ach-grid{grid-template-columns:repeat(3,1fr)}}
.ach-card{
  background:var(--bg2);border:2px solid var(--bdr);
  border-radius:var(--rs);padding:1.05rem .65rem;
  text-align:center;box-shadow:var(--shadow-sm);
  transition:all .12s;position:relative;
}
.ach-card.unlocked{border-color:var(--saffron);background:#fdf8ec;box-shadow:4px 5px 0 rgba(232,160,32,.25)}
[data-theme="dark"] .ach-card.unlocked{background:rgba(232,160,32,.08)}
.ach-card.unlocked:hover{transform:translate(-2px,-2px);box-shadow:6px 7px 0 rgba(232,160,32,.3)}
.ach-icon{font-size:1.9rem;margin-bottom:.4rem;display:block}
.ach-card.locked .ach-icon{filter:grayscale(1) opacity(.28)}
.ach-name{font-size:.78rem;font-weight:900;color:var(--ink);margin-bottom:.12rem}
.ach-desc{font-size:.66rem;color:var(--ink3);line-height:1.4}
.ach-card.locked .ach-name,.ach-card.locked .ach-desc{opacity:.32}
.ach-done-badge{
  position:absolute;top:-6px;right:-6px;
  background:var(--saffron);color:var(--ink);
  font-size:.56rem;font-weight:900;
  padding:.12rem .38rem;
  border:1.5px solid var(--ink2);border-radius:2px;
  font-family:var(--font-mono);
}

/* ═══════════════════════════════════
   LEADERBOARD
═══════════════════════════════════ */
.lb-tabs{display:flex;gap:.5rem;margin-bottom:1.1rem}
.lb-tab{flex:1;background:var(--bg2);border:2px solid var(--bdr);border-radius:var(--rs);padding:.58rem;font-size:.83rem;font-weight:800;color:var(--ink3);box-shadow:var(--shadow-sm);transition:all .12s}
.lb-tab:hover{border-color:var(--terra);color:var(--terra)}
.lb-tab.active{background:var(--terra);border-color:var(--ink2);color:#fff;box-shadow:var(--shadow-md)}
.lb-list{display:flex;flex-direction:column;gap:.5rem}
.lb-row{
  display:flex;align-items:center;gap:.8rem;
  background:var(--bg2);border:2px solid var(--bdr);
  border-radius:var(--rs);padding:.7rem .85rem;
  box-shadow:var(--shadow-sm);transition:all .12s;
}
.lb-row:hover{transform:translateX(-3px);border-color:var(--bdr2);box-shadow:var(--shadow-md)}
.lb-row.is-me{border-color:var(--terra);background:#fdecea}
[data-theme="dark"] .lb-row.is-me{background:rgba(200,75,47,.1)}
.lb-rank{font-size:.9rem;font-weight:900;min-width:26px;text-align:center;color:var(--ink4);font-family:var(--font-mono)}
.lb-rank.top1{color:var(--saffron)}
.lb-rank.top2{color:var(--ink3)}
.lb-rank.top3{color:#c58b5a}
.lb-av{font-size:1.35rem;width:34px;height:34px;background:var(--bg);border:2px solid var(--bdr);border-radius:var(--rs);display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-sm)}
.lb-info{flex:1}
.lb-name{font-weight:800;font-size:.86rem;color:var(--ink)}
.lb-sub{font-size:.68rem;color:var(--ink3)}
.lb-xp{font-weight:900;font-size:.88rem;color:var(--terra);font-family:var(--font-mono)}

/* ═══════════════════════════════════
   PROFILE
═══════════════════════════════════ */
.prof-hero{
  background:var(--bg2);border:2px solid var(--bdr);
  border-radius:var(--rm);padding:1.8rem;
  text-align:center;margin-bottom:1.1rem;
  box-shadow:var(--shadow-md);position:relative;overflow:hidden;
}
.prof-hero::before{
  content:'';position:absolute;top:0;left:0;right:0;height:6px;
  background:repeating-linear-gradient(90deg,var(--terra) 0 20px,var(--saffron) 20px 40px,var(--jade) 40px 60px,var(--rose) 60px 80px);
}
.prof-av{font-size:3.2rem;margin:.45rem 0 .65rem}
.prof-name{font-size:1.35rem;font-weight:900;color:var(--ink);margin-bottom:.35rem}
.prof-lvl{
  display:inline-block;background:var(--terra);
  border:2px solid var(--ink2);border-radius:3px;
  padding:.18rem .7rem;font-size:.72rem;font-weight:800;
  color:#fff;font-family:var(--font-mono);box-shadow:var(--shadow-sm);
}
.prof-stats{display:grid;grid-template-columns:repeat(2,1fr);gap:.65rem;margin-bottom:1.4rem}
.ps-box{background:var(--bg2);border:2px solid var(--bdr);border-radius:var(--rs);padding:.95rem;text-align:center;box-shadow:var(--shadow-sm)}
.ps-n{font-size:1.7rem;font-weight:900;color:var(--terra);font-family:var(--font-mono)}
.ps-l{font-size:.68rem;color:var(--ink3);margin-top:.18rem}
.hist-list{display:flex;flex-direction:column;gap:.48rem}
.hist-row{
  display:flex;align-items:center;justify-content:space-between;
  background:var(--bg2);border:2px solid var(--bdr);
  border-radius:var(--rs);padding:.7rem .85rem;
  font-size:.82rem;box-shadow:var(--shadow-sm);transition:all .12s;
}
.hist-row:hover{transform:translateX(-2px);border-color:var(--bdr2)}
.hist-pool{font-weight:800;color:var(--ink)}
.hist-score{font-weight:900;color:var(--terra);font-family:var(--font-mono)}
.hist-date{font-size:.68rem;color:var(--ink4);font-family:var(--font-mono)}

/* ═══════════════════════════════════
   QUIZ OVERLAY
═══════════════════════════════════ */
#screen-quiz{background:var(--bg);z-index:500;flex-direction:column;overflow-y:auto;padding-bottom:80px}

.timer-ring-wrap{position:fixed;top:14px;left:50%;transform:translateX(-50%);z-index:600;width:56px;height:56px;display:flex;align-items:center;justify-content:center}
.timer-svg{position:absolute;inset:0;transform:rotate(-90deg)}
.tr-bg{fill:none;stroke:var(--bg3);stroke-width:4}
.tr-arc{fill:none;stroke:var(--jade);stroke-width:4;stroke-linecap:square;stroke-dasharray:163.4;stroke-dashoffset:0;transition:stroke-dashoffset 1s linear,stroke .3s}
.tr-arc.warning{stroke:var(--saffron)}
.tr-arc.danger{stroke:var(--terra)}
.timer-num{font-family:var(--font-mono);font-size:.85rem;font-weight:700;color:var(--ink);position:relative;z-index:2}

.quiz-bar{position:sticky;top:0;z-index:100;display:flex;align-items:center;gap:.65rem;padding:.65rem .85rem;background:var(--bg2);border-bottom:2px solid var(--bdr);box-shadow:0 3px 0 var(--bdr)}
.qb-close{width:33px;height:33px;background:var(--bg);border:2px solid var(--bdr);border-radius:var(--rs);color:var(--ink3);font-size:.8rem;box-shadow:var(--shadow-sm);transition:all .12s;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.qb-close:hover{border-color:var(--terra);color:var(--terra)}
.qb-prog{flex:1}
.qb-meta{display:flex;justify-content:space-between;font-size:.7rem;font-weight:800;margin-bottom:4px}
.qb-xp-val{color:var(--saffron);font-family:var(--font-mono)}
.qb-track{height:8px;background:var(--bg3);border:1.5px solid var(--bdr)}
.qb-fill{height:100%;background:repeating-linear-gradient(90deg,var(--terra) 0 8px,#d4623a 8px 16px);transition:width .5s cubic-bezier(.34,1.2,.64,1)}
.qb-streak{background:var(--saffron);border:2px solid var(--ink2);color:var(--ink);font-size:.76rem;font-weight:900;padding:.22rem .58rem;border-radius:3px;flex-shrink:0;box-shadow:var(--shadow-sm);font-family:var(--font-mono);transition:transform .15s}
.qb-streak.bump{animation:chipBump .32s cubic-bezier(.34,1.6,.64,1)}

.quiz-content{max-width:640px;width:100%;margin:0 auto;padding:1rem 1rem 2rem}

.q-card{
  background:var(--bg2);border:2px solid var(--bdr);
  border-radius:var(--rs);padding:1.4rem 1.2rem 1rem;
  margin-bottom:1rem;box-shadow:var(--shadow-md);
  animation:slideIn .35s cubic-bezier(.34,1.1,.64,1) both;
  position:relative;
}
.q-card::before{content:'';position:absolute;top:-2px;right:-2px;width:5px;bottom:-2px;background:var(--terra);border-radius:0 var(--rs) var(--rs) 0}
@keyframes slideIn{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}
.q-badge{display:inline-flex;align-items:center;gap:.28rem;background:var(--bg3);border:1.5px solid var(--bdr);border-radius:3px;padding:.16rem .55rem;font-size:.63rem;font-weight:800;color:var(--ink3);text-transform:uppercase;letter-spacing:.5px;margin-bottom:.8rem;font-family:var(--font-mono)}
.q-text{font-size:1.15rem;font-weight:800;line-height:1.55;color:var(--ink);margin-bottom:.28rem}
.q-en{font-family:var(--font-en);font-size:1rem;color:var(--terra);margin-bottom:.45rem;font-style:italic}
.q-hint{font-size:.73rem;color:var(--ink4);display:flex;align-items:center;gap:.28rem}

.opts-grid{display:grid;grid-template-columns:1fr 1fr;gap:.55rem;margin-bottom:1rem}
@media(max-width:380px){.opts-grid{grid-template-columns:1fr}}
.opt{background:var(--bg2);border:2px solid var(--bdr);border-radius:var(--rs);padding:.72rem .82rem;font-size:.86rem;font-weight:700;color:var(--ink);text-align:center;cursor:pointer;box-shadow:var(--shadow-sm);transition:all .12s;line-height:1.4}
.opt:hover:not(:disabled){border-color:var(--terra);color:var(--terra);transform:translate(-2px,-2px);box-shadow:var(--shadow-md)}
.opt.correct{border-color:var(--jade)!important;background:#f0faf5!important;color:var(--jade)!important;box-shadow:3px 4px 0 rgba(42,122,92,.3)!important}
.opt.wrong{border-color:var(--terra)!important;background:#fdecea!important;color:var(--terra)!important;animation:shakeWrong .4s ease}
[data-theme="dark"] .opt.correct{background:rgba(42,122,92,.15)!important}
[data-theme="dark"] .opt.wrong{background:rgba(200,75,47,.1)!important}
@keyframes shakeWrong{20%,60%{transform:translateX(-5px)}40%,80%{transform:translateX(5px)}}

.tf-grid{display:grid;grid-template-columns:1fr 1fr;gap:.75rem;margin-bottom:1rem}
.tf-btn{padding:1rem;font-size:.95rem;font-weight:900;border:2px solid var(--bdr);background:var(--bg2);color:var(--ink);cursor:pointer;border-radius:var(--rs);box-shadow:var(--shadow-md);transition:all .12s;display:flex;flex-direction:column;align-items:center;gap:.32rem}
.tf-btn .tf-icon{font-size:1.7rem}
.tf-btn.true-btn:hover:not(:disabled){border-color:var(--jade);color:var(--jade);transform:translate(-2px,-2px);box-shadow:var(--shadow-lg)}
.tf-btn.false-btn:hover:not(:disabled){border-color:var(--terra);color:var(--terra);transform:translate(-2px,-2px);box-shadow:var(--shadow-lg)}
.tf-btn.correct{border-color:var(--jade)!important;background:#f0faf5!important;color:var(--jade)!important}
.tf-btn.wrong{border-color:var(--terra)!important;background:#fdecea!important;color:var(--terra)!important}
[data-theme="dark"] .tf-btn.correct{background:rgba(42,122,92,.15)!important}
[data-theme="dark"] .tf-btn.wrong{background:rgba(200,75,47,.1)!important}

.fill-inp{width:100%;background:var(--bg);border:2px solid var(--bdr);border-radius:var(--rs);padding:.82rem .95rem;font-family:var(--font-mono);font-size:1.02rem;color:var(--ink);outline:none;direction:ltr;text-align:center;box-shadow:var(--shadow-sm);display:block;margin-bottom:.75rem;transition:border-color .12s,box-shadow .12s}
.fill-inp:focus{border-color:var(--terra);box-shadow:3px 4px 0 var(--terra)}
.fill-inp.correct{border-color:var(--jade);background:#f0faf5;box-shadow:3px 4px 0 var(--jade)}
.fill-inp.wrong{border-color:var(--terra);background:#fdecea;box-shadow:3px 4px 0 var(--terra)}
[data-theme="dark"] .fill-inp.correct{background:rgba(42,122,92,.12)}
[data-theme="dark"] .fill-inp.wrong{background:rgba(200,75,47,.08)}

.arrange-pool,.arrange-ans{display:flex;flex-wrap:wrap;gap:.38rem;padding:.62rem;border:2px solid var(--bdr);border-radius:var(--rs);min-height:44px;direction:ltr;justify-content:center;margin-bottom:.5rem}
.arrange-pool{background:var(--bg3)}
.arrange-ans{background:var(--bg);border-color:var(--terra)}
.w-chip{background:var(--bg2);border:2px solid var(--bdr2);border-radius:3px;padding:.22rem .65rem;font-family:var(--font-mono);font-size:.83rem;font-weight:700;cursor:pointer;box-shadow:var(--shadow-sm);transition:all .12s;user-select:none;color:var(--ink)}
.w-chip:hover{border-color:var(--terra);color:var(--terra);transform:translate(-1px,-1px);box-shadow:var(--shadow-md)}
.w-chip.used{opacity:.2;pointer-events:none}
.w-chip.ans-chip{background:#fdecea;border-color:var(--terra);color:var(--terra)}
.w-chip.ans-chip:hover{border-color:var(--jade);color:var(--jade);background:#f0faf5}
[data-theme="dark"] .w-chip.ans-chip{background:rgba(200,75,47,.12)}

.q-submit{width:100%;background:var(--jade);border:2px solid var(--ink2);border-radius:var(--rs);padding:.82rem;font-size:.92rem;font-weight:900;color:#fff;box-shadow:var(--shadow-md);transition:all .12s}
.q-submit:hover:not(:disabled){transform:translate(-2px,-2px);box-shadow:var(--shadow-lg)}
.q-submit:active:not(:disabled){transform:translate(1px,1px);box-shadow:var(--shadow-sm)}
.q-submit:disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}

.fb-bar{position:fixed;bottom:0;left:0;right:0;z-index:600;display:flex;align-items:center;justify-content:space-between;gap:.9rem;padding:.95rem 1.05rem;transform:translateY(110%);transition:transform .36s cubic-bezier(.34,1.2,.64,1);border-top:2px solid}
.fb-bar.show{transform:translateY(0)}
.fb-bar.ok{background:#edf9f3;border-color:var(--jade)}
.fb-bar.err{background:#fdecea;border-color:var(--terra)}
[data-theme="dark"] .fb-bar.ok{background:rgba(42,122,92,.12)}
[data-theme="dark"] .fb-bar.err{background:rgba(200,75,47,.1)}
.fbb-left{display:flex;align-items:center;gap:.7rem}
.fbb-emoji{font-size:1.7rem;animation:popIn .4s cubic-bezier(.34,1.5,.64,1)}
@keyframes popIn{from{transform:scale(0)}to{transform:scale(1)}}
.fbb-title{font-size:.88rem;font-weight:900;color:var(--ink);margin-bottom:.1rem}
.fbb-detail{font-size:.73rem;color:var(--ink3)}
.fbb-next{background:var(--jade);border:2px solid var(--ink2);border-radius:var(--rs);padding:.5rem 1rem;font-size:.85rem;font-weight:900;color:#fff;flex-shrink:0;box-shadow:var(--shadow-sm);transition:all .12s}
.fbb-next:hover{transform:translate(-1px,-1px);box-shadow:var(--shadow-md)}

/* ═══════════════════════════════════
   RESULTS
═══════════════════════════════════ */
#screen-results{background:var(--bg);z-index:500;align-items:center;justify-content:center;padding:2rem 1rem;overflow-y:auto}
.results-inner{width:100%;max-width:520px;text-align:center;animation:fadeUp .4s ease both}
.ri-trophy{font-size:4.8rem;margin-bottom:.45rem;display:block;animation:trophyRock 2.5s ease-in-out infinite}
@keyframes trophyRock{0%,100%{transform:rotate(-5deg)}50%{transform:rotate(5deg) translateY(-8px)}}
.ri-title{font-family:var(--font-ar);font-size:2rem;font-weight:900;color:var(--ink);margin-bottom:.28rem}
.ri-score{font-size:4.8rem;font-weight:900;color:var(--terra);font-family:var(--font-mono);line-height:1;margin-bottom:.1rem}
.ri-pct{font-size:.85rem;color:var(--ink3);margin-bottom:1.8rem;font-family:var(--font-mono)}
.ri-pills{display:flex;gap:.65rem;justify-content:center;flex-wrap:wrap;margin-bottom:1.4rem}
.rip{background:var(--bg2);border:2px solid var(--bdr);border-radius:var(--rs);padding:.85rem 1rem;min-width:82px;box-shadow:var(--shadow-sm)}
.rip-v{font-size:1.55rem;font-weight:900;color:var(--terra);font-family:var(--font-mono)}
.rip-l{font-size:.66rem;color:var(--ink3);margin-top:.14rem}
.mistakes-sec{text-align:right}
.mistake-card{background:var(--bg2);border:2px solid var(--bdr);border-right:4px solid var(--terra);border-radius:var(--rs);padding:.85rem;margin-bottom:.5rem;box-shadow:var(--shadow-sm)}
.mk-q{font-weight:800;font-size:.86rem;color:var(--ink);margin-bottom:.28rem}
.mk-your{font-size:.76rem;color:var(--terra);margin-bottom:.14rem}
.mk-correct{font-size:.76rem;color:var(--jade)}
.ri-btns{display:flex;gap:.65rem;justify-content:center;flex-wrap:wrap;margin-top:1.4rem}
.ri-btn-p{background:var(--terra);border:2px solid var(--ink2);border-radius:var(--rs);padding:.82rem 1.7rem;font-size:.92rem;font-weight:900;color:#fff;box-shadow:var(--shadow-md);transition:all .12s}
.ri-btn-p:hover{transform:translate(-2px,-2px);box-shadow:var(--shadow-lg)}
.ri-btn-s{background:var(--bg2);border:2px solid var(--bdr);border-radius:var(--rs);padding:.82rem 1.4rem;font-size:.88rem;font-weight:800;color:var(--ink3);box-shadow:var(--shadow-sm);transition:all .12s}
.ri-btn-s:hover{border-color:var(--ink3);color:var(--ink);transform:translate(-1px,-1px)}

.hidden{display:none!important}

/* ═══════════════════════════════════
   FX
═══════════════════════════════════ */
.xp-float{
  position:fixed;top:42%;left:50%;
  transform:translate(-50%,-50%) scale(0);
  background:var(--saffron);color:var(--ink);
  border:2px solid var(--ink2);
  font-weight:900;font-size:1.25rem;
  font-family:var(--font-mono);
  padding:.42rem 1rem;border-radius:3px;
  box-shadow:var(--shadow-lg);
  pointer-events:none;z-index:9999;
  white-space:nowrap;
  animation:xpFloat 1.5s ease forwards;
}
@keyframes xpFloat{
  0%{transform:translate(-50%,-50%) scale(0);opacity:1}
  20%{transform:translate(-50%,-50%) scale(1.12)}
  60%{transform:translate(-50%,-90%) scale(1);opacity:1}
  100%{transform:translate(-50%,-160%) scale(.85);opacity:0}
}
.confetti-el{position:fixed;top:5vh;font-size:1.25rem;pointer-events:none;z-index:9999;animation:confettiFall 2s ease forwards}
@keyframes confettiFall{from{opacity:1;transform:translateY(0) rotate(0)}to{opacity:0;transform:translateY(90vh) rotate(540deg)}}

#toasts{position:fixed;bottom:1.5rem;left:50%;transform:translateX(-50%);z-index:9998;display:flex;flex-direction:column;align-items:center;gap:.45rem;pointer-events:none}
.toast{background:var(--ink);border:2px solid var(--ink2);border-radius:4px;padding:.45rem 1rem;font-size:.8rem;font-weight:800;color:var(--bg);white-space:nowrap;box-shadow:var(--shadow-md);animation:toastIn .28s cubic-bezier(.34,1.4,.64,1) both}
[data-theme="dark"] .toast{background:var(--bg2);color:var(--ink);border-color:var(--bdr)}
.toast.out{animation:toastOut .26s ease forwards}
@keyframes toastIn{from{opacity:0;transform:translateY(8px) scale(.9)}}
@keyframes toastOut{to{opacity:0;transform:translateY(8px) scale(.9)}}

/* ═══════════════════════════════════
   RESPONSIVE
═══════════════════════════════════ */
@media(max-width:400px){
  .ri-score{font-size:3.5rem}
  .auth-box{padding:2rem 1.25rem}
  .levels-grid{grid-template-columns:1fr}
}
::-webkit-scrollbar{width:5px}
::-webkit-scrollbar-track{background:var(--bg2)}
::-webkit-scrollbar-thumb{background:var(--bdr2);border-radius:0}
::-webkit-scrollbar-thumb:hover{background:var(--ink4)}