:root{
  --navy:#0d2a52;--navy2:#173d70;--blue:#2f80ed;--blue2:#5ba4ff;--bg:#f4f8fd;--card:#fff;
  --text:#11243f;--muted:#6f7f94;--green:#18a968;--red:#e8495b;--yellow:#f2b436;--purple:#8159e8;
  --border:#dbe6f2;--shadow:0 14px 38px rgba(29,63,105,.10);--radius:20px;
}
*{box-sizing:border-box}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;background:var(--bg);color:var(--text)}button,input,select{font:inherit}
button{cursor:pointer}.app-shell{min-height:100vh;display:flex}.sidebar{position:fixed;inset:0 auto 0 0;width:230px;background:linear-gradient(180deg,#09203f,#0d2a52 60%,#0a2447);padding:22px 14px;color:#fff;z-index:30;transition:.25s}.brand{display:flex;gap:12px;align-items:center;padding:6px 10px 22px;font-size:24px}.brand-icon{font-size:32px}.brand div{display:flex;flex-direction:column;line-height:.9}.brand span{font-weight:700}nav{display:grid;gap:6px}.nav-btn{border:0;background:transparent;color:#dbeaff;text-align:left;padding:12px 14px;border-radius:12px;font-weight:650;display:flex;gap:10px;align-items:center}.nav-btn:hover,.nav-btn.active{background:linear-gradient(135deg,#2f80ed,#1f6ed7);color:#fff}.main{margin-left:230px;width:calc(100% - 230px)}.topbar{height:72px;background:#fff;display:flex;align-items:center;justify-content:flex-end;padding:0 28px;border-bottom:1px solid var(--border);position:sticky;top:0;z-index:20}.menu-btn{display:none;border:0;background:transparent;font-size:24px}.level-box{display:flex;gap:18px;font-size:14px}.avatar{margin-left:18px;width:38px;height:38px;border-radius:50%;background:var(--blue);color:#fff;display:grid;place-items:center;font-weight:800}.screen{display:none;padding:28px;max-width:1450px;margin:auto}.screen.active{display:block}.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}.hero{min-height:335px;display:grid;grid-template-columns:1.12fr .88fr;overflow:hidden;background:linear-gradient(135deg,#f9fcff 0%,#e6f2ff 55%,#d7ecff 100%)}.hero-copy{padding:45px}.eyebrow{font-size:12px;letter-spacing:.11em;font-weight:800;color:var(--blue)}h1{font-size:52px;margin:8px 0 6px;line-height:1}h2{font-size:30px;margin:4px 0}h3{margin-top:0}.hero-copy p{font-size:19px;color:#52667f;max-width:620px;line-height:1.5}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}.primary,.ghost,.danger{border-radius:12px;padding:12px 18px;font-weight:750;border:1px solid transparent}.primary{background:linear-gradient(135deg,#3287f1,#176edb);color:#fff;box-shadow:0 8px 18px rgba(47,128,237,.2)}.ghost{background:#fff;color:var(--text);border-color:var(--border)}.danger{background:#fff0f2;color:#c93245;border-color:#ffc7cf}.quest-path{position:relative;display:flex;align-items:center;justify-content:center;font-size:52px;background:radial-gradient(circle at 70% 25%,#fff 0 6%,transparent 7%),linear-gradient(180deg,#8fd0ff 0 48%,#8ed183 49% 67%,#6fab67 68% 100%);overflow:hidden}.mountain{position:absolute;left:10%;bottom:18%;font-size:90px}.castle{position:absolute;right:10%;top:20%;font-size:90px}.trail{font-size:62px;color:#d2b57a;transform:rotate(-13deg)}.signs{position:absolute;right:24%;bottom:12%;display:grid;gap:5px;font-size:12px}.signs span{background:#c78634;color:#fff;padding:5px 10px;border-radius:5px;font-weight:900;border:2px solid #8e5e24}.section-head,.page-title{display:flex;justify-content:space-between;align-items:center;margin:28px 0 14px}.section-head h2{font-size:24px}.section-head span{color:var(--muted)}.task-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}.task-grid.large{grid-template-columns:repeat(3,1fr)}.task-card{padding:18px;border-radius:18px;border:1px solid var(--border);background:#fff;text-align:left;min-height:145px;transition:.2s;position:relative;overflow:hidden}.task-card:hover{transform:translateY(-2px);box-shadow:var(--shadow)}.task-icon{font-size:28px}.task-card h3{margin:10px 0 4px}.task-card p{margin:0;color:var(--muted);font-size:13px}.task-status{position:absolute;right:12px;bottom:12px;font-size:12px;font-weight:800;padding:5px 8px;border-radius:999px;background:#eef5ff;color:var(--blue)}.task-card.done{border-color:#a7e3c7;background:#f2fff8}.task-card.done .task-status{background:#daf7e8;color:#08784a}.two-col{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:18px}.two-col .card{padding:22px}.coach-card{background:linear-gradient(135deg,#fffaf0,#fff)}.muted{color:var(--muted)}.big-progress,.progress{height:10px;background:#e9f0f8;border-radius:99px;overflow:hidden}.big-progress div,.progress div{height:100%;background:linear-gradient(90deg,#2f80ed,#7159e8);width:0;transition:.3s}.mode-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.mode-card{background:#fff;border:1px solid var(--border);border-radius:18px;padding:25px;text-align:left;color:var(--text);box-shadow:var(--shadow);transition:.2s}.mode-card:hover{transform:translateY(-3px)}.mode-card>span{font-size:34px}.mode-card h3{margin:12px 0 6px}.mode-card p{color:var(--muted);margin:0;line-height:1.5}.quiz-wrap{max-width:960px;margin:auto}.quiz-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}.quiz-meta{display:flex;gap:18px;font-weight:800}.quiz-card{padding:28px;margin-top:18px}.question{font-size:23px;font-weight:750;line-height:1.55}.question .tap-word,.passage .tap-word{border-bottom:2px dashed var(--blue);color:#135cae;cursor:pointer;padding:0 1px}.passage{padding:18px;border-radius:14px;background:#f5f8fc;color:#334d68;line-height:1.7;margin-bottom:22px}.help-row{display:flex;gap:10px;flex-wrap:wrap;margin:14px 0}.help-chip{border:1px solid #bfd7f3;background:#f4f9ff;color:#1760b3;border-radius:999px;padding:7px 11px;font-size:13px;font-weight:700}.options{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:18px}.option{border:1px solid #cfdded;background:#fff;border-radius:13px;padding:14px;text-align:left;color:var(--text);font-weight:650;transition:.15s}.option:hover{border-color:#8dbbf0;background:#f7fbff}.option.correct{border-color:#6fd0a2;background:#eafff4;color:#08784a}.option.wrong{border-color:#f6a2ae;background:#fff0f2;color:#b7293c}.option:disabled{cursor:default}.feedback{margin-top:18px;padding:16px;border-radius:14px;font-weight:650;line-height:1.5}.feedback.ok{background:#e9fff4;color:#08784a}.feedback.no{background:#fff0f2;color:#a72b3a}.quiz-actions{display:flex;justify-content:space-between;margin-top:22px}.hidden{display:none!important}.stat-cards{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:16px}.stat{padding:22px;display:flex;flex-direction:column;align-items:center}.stat span{font-size:28px}.stat b{font-size:32px}.stat small{color:var(--muted)}#topicStats{padding:5px 0}.topic-row{display:grid;grid-template-columns:170px 1fr 60px;align-items:center;gap:10px;margin:14px 0}.topic-bar{height:9px;background:#e9f0f8;border-radius:99px;overflow:hidden}.topic-bar>div{height:100%;background:linear-gradient(90deg,#2f80ed,#8159e8)}.badge-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.badge{padding:22px;text-align:center}.badge .badge-icon{font-size:48px;filter:grayscale(1);opacity:.35}.badge.unlocked .badge-icon{filter:none;opacity:1}.badge p{color:var(--muted);font-size:13px}.review-empty{padding:40px;text-align:center;color:var(--muted)}.review-item{display:grid;grid-template-columns:1fr auto;gap:10px;padding:16px;border-bottom:1px solid var(--border)}.review-item:last-child{border-bottom:0}.review-item small{color:var(--muted)}.settings-card{padding:22px;max-width:720px}.settings-card label{display:flex;align-items:center;justify-content:space-between;padding:16px 0;border-bottom:1px solid var(--border)}.settings-card select{padding:8px 12px;border:1px solid var(--border);border-radius:9px}.settings-card .danger{margin-top:22px}.help-dialog{border:0;border-radius:22px;max-width:460px;width:calc(100% - 28px);padding:30px;box-shadow:0 30px 90px rgba(0,0,0,.25);color:var(--text)}.help-dialog::backdrop{background:rgba(7,27,54,.55);backdrop-filter:blur(4px)}.dialog-close{position:absolute;right:15px;top:12px;border:0;background:transparent;font-size:30px;color:var(--muted)}.help-icon{font-size:35px}.pronunciation{color:var(--muted);font-style:italic}.meaning{font-size:21px;font-weight:800;background:#eef6ff;padding:13px;border-radius:12px;margin:12px 0}.translation{color:#60758d;background:#fafbfc;padding:12px;border-radius:10px}.toast{position:fixed;left:50%;bottom:24px;transform:translate(-50%,20px);background:#102b4d;color:white;padding:12px 18px;border-radius:11px;opacity:0;pointer-events:none;transition:.25s;z-index:100}.toast.show{opacity:1;transform:translate(-50%,0)}
@media(max-width:1050px){.task-grid{grid-template-columns:repeat(3,1fr)}.hero{grid-template-columns:1fr}.quest-path{min-height:220px}.mode-grid{grid-template-columns:repeat(2,1fr)}.badge-grid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:760px){.sidebar{transform:translateX(-100%);width:245px}.sidebar.open{transform:translateX(0)}.main{margin-left:0;width:100%}.topbar{height:64px;padding:0 15px;justify-content:space-between}.menu-btn{display:block}.level-box{gap:9px;font-size:12px}.avatar{margin-left:0;width:34px;height:34px}.screen{padding:18px 14px}.hero{min-height:auto}.hero-copy{padding:28px 22px}.hero h1{font-size:39px}.hero-copy p{font-size:16px}.quest-path{min-height:180px}.mountain,.castle{font-size:60px}.task-grid,.task-grid.large,.mode-grid,.stat-cards,.badge-grid,.two-col{grid-template-columns:1fr 1fr}.options{grid-template-columns:1fr}.question{font-size:19px}.quiz-card{padding:19px}.page-title{align-items:flex-start;gap:10px}.topic-row{grid-template-columns:110px 1fr 45px}}
@media(max-width:480px){.level-box span:nth-child(3){display:none}.task-grid,.task-grid.large,.mode-grid,.badge-grid,.two-col{grid-template-columns:1fr}.stat-cards{grid-template-columns:1fr 1fr}.hero-actions>*{width:100%}.quest-path{display:none}.screen{padding:14px 10px}.quiz-head h2{font-size:23px}.quiz-meta{font-size:13px;gap:8px}.question{font-size:18px}.section-head h2{font-size:21px}.page-title h2{font-size:24px}}

/* Mobil uyumluluk ve eski tarayıcı fallbackleri */
html{-webkit-text-size-adjust:100%;text-size-adjust:100%;background:var(--bg)}
body{overflow-x:hidden;-webkit-tap-highlight-color:transparent}
button,.nav-btn,.mode-card,.task-card,.option,.help-chip{touch-action:manipulation;-webkit-appearance:none;appearance:none}
button{min-height:44px}
input,select,textarea{font-size:16px}
.main,.screen,.hero,.hero-copy,.quest-path,.quiz-wrap,.quiz-card{min-width:0;max-width:100%}
.startup-status{position:fixed;left:50%;bottom:16px;z-index:300;transform:translateX(-50%);display:flex;flex-direction:column;gap:3px;max-width:calc(100% - 24px);padding:11px 15px;border-radius:12px;background:#102b4d;color:#fff;box-shadow:0 10px 30px rgba(0,0,0,.2);font-size:13px;opacity:0;pointer-events:none;animation:startupReveal .15s ease 1s forwards}
.startup-status.error{opacity:1;animation:none;background:#8b2433;pointer-events:auto}
.startup-status span{opacity:.9;font-size:12px;line-height:1.35}
@keyframes startupReveal{to{opacity:1}}
.no-script{margin:20px;padding:16px;border-radius:12px;background:#fff0f2;color:#8b2433;border:1px solid #ffc7cf}
.modal-overlay{display:none;position:fixed;top:0;right:0;bottom:0;left:0;z-index:200;align-items:center;justify-content:center;padding:14px;background:rgba(7,27,54,.58);overflow:auto;-webkit-overflow-scrolling:touch}
.modal-overlay.open{display:flex}
.modal-open{overflow:hidden}
.modal-overlay .help-dialog{position:relative;display:block;margin:auto;max-height:calc(100vh - 28px);overflow:auto;-webkit-overflow-scrolling:touch}

/* CSS Grid desteklenmeyen eski mobil tarayıcılarda düzen tamamen bozulmasın. */
.task-grid,.mode-grid,.stat-cards,.badge-grid,.two-col{display:flex;flex-wrap:wrap}
.task-grid>*{flex:1 1 190px}
.mode-grid>*{flex:1 1 260px}
.stat-cards>*{flex:1 1 150px}
.badge-grid>*{flex:1 1 190px}
.two-col>*{flex:1 1 300px}
@supports (display:grid){
  .task-grid{display:grid}
  .mode-grid{display:grid}
  .stat-cards{display:grid}
  .badge-grid{display:grid}
  .two-col{display:grid}
}

@media(max-width:760px){
  .topbar{padding-left:max(15px,env(safe-area-inset-left));padding-right:max(15px,env(safe-area-inset-right))}
  .screen{padding-left:max(14px,env(safe-area-inset-left));padding-right:max(14px,env(safe-area-inset-right));padding-bottom:max(18px,env(safe-area-inset-bottom))}
  .sidebar{padding-top:max(22px,env(safe-area-inset-top));padding-left:max(14px,env(safe-area-inset-left))}
  .level-box{min-width:0;white-space:nowrap}
  .page-title{flex-wrap:wrap}
}
@media(max-width:360px){
  .level-box{gap:6px;font-size:11px}
  .avatar{display:none}
  .hero-copy{padding:22px 17px}
  .hero h1{font-size:34px}
  .screen{padding-left:9px;padding-right:9px}
  .quiz-card{padding:15px}
  .question{font-size:17px}
}


/* Türkçe cümle ve kelime yardımı */
.tr-chip{background:#fff7e8;border-color:#f2cf88;color:#8a5b00}
.sentence-translation{margin:10px 0 16px;padding:14px 16px;border:1px solid #b9e7d0;border-radius:14px;background:#effcf6;color:#185d43;line-height:1.55}
.sentence-translation b{display:block;margin-bottom:5px;color:#08784a}
.sentence-translation small{display:block;margin-top:7px;color:#5c786c}
.tap-word{display:inline;position:relative}
.question .tap-word,.passage .tap-word{background:rgba(47,128,237,.07);border-radius:4px;padding:0 2px}
@media(max-width:480px){.help-row .help-chip{flex:1 1 100%;text-align:left}.sentence-translation{font-size:14px}}


/* v4: tek kişilik + takım hazırlığı */
.play-mode-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin:18px 0 8px}.play-mode-card{border:0;text-align:left;display:flex;align-items:center;gap:14px;cursor:pointer;padding:18px}.play-mode-card>div{display:flex;flex-direction:column;gap:4px;flex:1}.play-mode-card b{font-size:18px}.play-mode-card small{color:var(--muted)}.play-mode-icon{font-size:30px}.team-hero{display:flex;justify-content:space-between;align-items:center;gap:20px}.team-stat{min-width:120px;text-align:center;padding:16px;border-radius:16px;background:rgba(64,110,255,.08)}.team-stat b{display:block;font-size:34px}.team-stat small{color:var(--muted)}.challenge-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin:16px 0}.challenge-card span{font-size:32px}.challenge-card h3{margin:8px 0}.team-connect{margin-top:16px}.team-connect .primary{margin-top:8px}.option .tap-word{position:relative;z-index:2}.tap-word{cursor:pointer;text-decoration:underline;text-decoration-style:dotted;text-underline-offset:3px;font-weight:650}.tap-word:hover{background:rgba(255,211,92,.25);border-radius:4px}
@media(max-width:760px){.play-mode-grid,.challenge-grid{grid-template-columns:1fr}.team-hero{align-items:flex-start;flex-direction:column}.play-mode-card{padding:15px}.play-mode-card b{font-size:16px}}

/* Firebase team mode */
.team-panel-head{display:flex;gap:14px;align-items:center;justify-content:space-between;flex-wrap:wrap}
.team-panel-head>div:first-child{flex:1;min-width:240px}
.team-panel-head h3{margin:0 0 5px}.team-panel-head p{margin:0}
.google-signin{border:0;border-radius:14px;background:#fff;color:#1f1f1f;box-shadow:0 1px 4px rgba(0,0,0,.22);padding:12px 16px;font-weight:800;cursor:pointer}
.signed-user{margin:16px 0;padding:12px 14px;border:1px solid #d8e5f6;border-radius:16px;background:#f8fbff;display:flex;align-items:center;gap:10px}
.signed-user img,.user-fallback{width:40px;height:40px;border-radius:50%;object-fit:cover;display:grid;place-items:center;background:#eaf2ff}
.signed-user div{display:flex;flex-direction:column}.signed-user small{color:#63758e;margin-top:2px}
.team-join-area{display:grid;grid-template-columns:1fr auto 1fr;gap:18px;align-items:end;margin:18px 0}
.team-form{display:grid;gap:8px}.team-form label{font-weight:800}.team-form input{width:100%;box-sizing:border-box;border:1px solid #cbd9ed;border-radius:12px;padding:12px 13px;font:inherit;min-height:46px}
.team-or{color:#7a8ba5;font-weight:800;padding-bottom:14px}.active-team{margin-top:18px}.active-team-top{display:flex;justify-content:space-between;align-items:flex-start;gap:12px;flex-wrap:wrap}.active-team-top h3{margin:4px 0}.tiny-btn{border:0;background:#eaf2ff;color:#1768d5;border-radius:9px;padding:5px 9px;font-weight:800;cursor:pointer}
.team-goal{margin:16px 0;padding:14px;border-radius:16px;background:#f5f9ff}.team-goal>div:first-child{display:flex;justify-content:space-between;gap:10px;margin-bottom:10px}.team-goal .big-progress{height:10px}.team-goal .big-progress>div{height:100%;width:0;background:linear-gradient(90deg,#2e85ef,#7755e8);border-radius:99px}
.leaderboard{display:grid;gap:8px}.leader-row{display:grid;grid-template-columns:34px 42px 1fr auto;gap:10px;align-items:center;padding:10px 12px;border:1px solid #dde7f4;border-radius:14px;background:#fff}.leader-row.me{border-color:#6aa7f5;background:#f2f8ff}.leader-row img,.leader-avatar{width:38px;height:38px;border-radius:50%;object-fit:cover;display:grid;place-items:center;background:#eef4fc}.rank{font-size:18px;text-align:center}.leader-name{display:flex;flex-direction:column;min-width:0}.leader-name small{color:#718198}.leader-row strong{white-space:nowrap;color:#0b5ec9}.team-fallback{margin-top:18px;padding-top:14px;border-top:1px solid #e0e8f2}.cloud-error{color:#b42318!important}
@media(max-width:700px){.team-join-area{grid-template-columns:1fr}.team-or{text-align:center;padding:0}.leader-row{grid-template-columns:28px 36px 1fr auto;padding:9px 8px}.leader-row img,.leader-avatar{width:34px;height:34px}.leader-name small{font-size:11px}.leader-row strong{font-size:12px}.team-panel-head .google-signin,.team-panel-head .ghost{width:100%}}

/* v5.2 profile menu */
.profile-wrap{position:relative;margin-left:18px;flex:0 0 auto}
.profile-wrap .avatar{margin-left:0;border:0;padding:0;overflow:hidden;box-shadow:0 2px 8px rgba(13,42,82,.14)}
.profile-trigger{cursor:pointer;font:inherit}
.profile-trigger:focus-visible{outline:3px solid rgba(47,128,237,.3);outline-offset:3px}
.profile-menu{position:absolute;right:0;top:50px;width:280px;background:#fff;border:1px solid var(--border);border-radius:18px;box-shadow:0 18px 50px rgba(13,42,82,.18);padding:12px;z-index:1000}
.profile-menu.hidden{display:none!important}
.profile-menu-user{display:flex;align-items:center;gap:11px;padding:7px 6px 12px;border-bottom:1px solid #e7eef7}
.profile-menu-avatar{width:46px;height:46px;border-radius:50%;display:grid;place-items:center;background:#eaf2ff;color:#176edb;font-weight:900;background-size:cover;background-position:center;flex:0 0 auto;overflow:hidden}
.profile-menu-identity{min-width:0;display:flex;flex-direction:column;gap:2px}
.profile-menu-identity b{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.profile-menu-identity small{color:#6b7d94;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.profile-menu-stats{display:grid;grid-template-columns:1fr 1fr;gap:8px;padding:11px 4px}
.profile-menu-stats span{background:#f5f9ff;border:1px solid #e2ebf7;border-radius:11px;padding:8px;text-align:center;font-size:12px}
.profile-menu-btn{width:100%;border:0;background:transparent;border-radius:11px;padding:11px 10px;text-align:left;font:inherit;font-weight:750;color:var(--text);cursor:pointer}
.profile-menu-btn:hover,.profile-menu-btn:focus-visible{background:#f2f7fd;outline:none}
.profile-menu-btn.danger-text{color:#b42318}
@media(max-width:760px){.profile-wrap{margin-left:0}.profile-menu{position:fixed;right:12px;top:70px;width:min(290px,calc(100vw - 24px))}}