/* ===== Kodlayalım ortak stiller ===== */
:root {
    --bg: #f5f7fa;
    --bg-alt: #eaeef4;
    --surface: #ffffff;
    --ink: #111827;
    --muted: #5a6475;
    --line: #dde3ec;
    --accent: #1d5fd6;
    --accent-ink: #ffffff;
    --accent-soft: rgba(29, 95, 214, 0.12);
    --ok: #16a36a;
    --ok-soft: rgba(22, 163, 106, 0.14);
    --bad: #d33a3a;
    --bad-soft: rgba(211, 58, 58, 0.12);
    --gold: #f2b01e;
    --tile: #e3e9f2;
    --tile-line: #cfd8e5;
    --wall: #4b5568;
    --code-bg: #0f172a;
    --code-ink: #e2e8f0;
    --shadow: 0 1px 2px rgba(20, 20, 30, 0.04), 0 8px 24px rgba(20, 20, 30, 0.06);
    --radius: 16px;
    --display: 'Bricolage Grotesque', 'Inter', system-ui, sans-serif;
    --body: 'Inter', system-ui, sans-serif;
    --mono: 'JetBrains Mono', ui-monospace, monospace;
    color-scheme: light;
}
@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        --bg: #0c111b; --bg-alt: #111827; --surface: #172033; --ink: #e8edf5; --muted: #95a1b5;
        --line: #243049; --accent: #6ea4ff; --accent-ink: #0a1428; --accent-soft: rgba(110, 164, 255, 0.16);
        --ok: #34d399; --ok-soft: rgba(52, 211, 153, 0.15); --bad: #f87171; --bad-soft: rgba(248, 113, 113, 0.15);
        --tile: #1f2a40; --tile-line: #2b3852; --wall: #8391a8; --code-bg: #0a0f1a;
        --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 8px 24px rgba(0, 0, 0, 0.25);
        color-scheme: dark;
    }
}
:root[data-theme="dark"] {
    --bg: #0c111b; --bg-alt: #111827; --surface: #172033; --ink: #e8edf5; --muted: #95a1b5;
    --line: #243049; --accent: #6ea4ff; --accent-ink: #0a1428; --accent-soft: rgba(110, 164, 255, 0.16);
    --ok: #34d399; --ok-soft: rgba(52, 211, 153, 0.15); --bad: #f87171; --bad-soft: rgba(248, 113, 113, 0.15);
    --tile: #1f2a40; --tile-line: #2b3852; --wall: #8391a8; --code-bg: #0a0f1a;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 8px 24px rgba(0, 0, 0, 0.25);
    color-scheme: dark;
}

[hidden] { display: none !important; }
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body {
    background: var(--bg); color: var(--ink);
    font: 16px/1.55 var(--body);
    -webkit-font-smoothing: antialiased;
    min-height: 100vh;
}
a { color: var(--accent); }
button, input, textarea, select { font: inherit; color: inherit; }
code, kbd { font-family: var(--mono); font-size: 0.9em; background: var(--accent-soft); color: var(--accent); padding: 1px 6px; border-radius: 6px; white-space: nowrap; }
h1, h2, h3 { font-family: var(--display); line-height: 1.15; letter-spacing: -0.01em; }

.wrap { width: min(1180px, 100% - 32px); margin-inline: auto; }

/* Üst bar */
.kl-top { position: sticky; top: 0; z-index: 20; background: color-mix(in srgb, var(--bg) 85%, transparent); backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.kl-top-inner { display: flex; align-items: center; gap: 12px; height: 60px; }
.kl-brand { display: flex; align-items: center; gap: 10px; font-family: var(--display); font-weight: 800; font-size: 1.2rem; color: var(--ink); text-decoration: none; }
.kl-logo { width: 36px; height: 36px; border-radius: 10px; background: url(ikon/ikon.svg) center / contain no-repeat; flex: 0 0 auto; box-shadow: 0 4px 12px rgba(79, 70, 229, .25); }
.kl-ad { letter-spacing: -0.02em; }
.kl-ad b { color: var(--accent); font-weight: 800; }
.kl-crumb { color: var(--muted); font-weight: 500; display: flex; align-items: center; gap: 8px; min-width: 0; }
.kl-crumb span { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
/* Öğrenme yolu şeridi (bölüm sonunda; KL.yolDurak) */
.kl-yol { display: flex; align-items: center; justify-content: center; flex-wrap: wrap; gap: 8px 14px; margin: 14px 0 12px; padding: 10px 14px; border-radius: 14px; background: color-mix(in srgb, var(--yc) 12%, var(--surface)); border: 1px solid color-mix(in srgb, var(--yc) 38%, transparent); color: var(--ink); font-size: .92rem; text-align: center; }
.kl-yol > span i { color: var(--yc); margin-right: 6px; }
.kl-yol .btn { background: var(--yc); border-color: var(--yc); color: #fff; white-space: normal; }
.kl-yol .btn:hover { filter: brightness(1.08); }
.kl-geri { display: inline-flex; align-items: center; gap: 7px; flex: 0 0 auto; padding: 6px 13px; border-radius: 99px; border: 1px solid var(--line); background: var(--surface); color: var(--ink); font-weight: 700; font-size: .88rem; text-decoration: none; white-space: nowrap; transition: border-color .15s, color .15s; }
.kl-geri:hover { border-color: var(--accent); color: var(--accent); }
.kl-geri i { color: var(--accent); }
.kl-crumb .kl-geri span { overflow: visible; }
/* Telefonda: geri düğmesi yer açsın diye site adı ve etkinlik adı gizlenir (logo kalır) */
@media (max-width: 560px) {
    .kl-top.donuslu .kl-ad, .kl-top.donuslu .kl-crumb > i, .kl-top.donuslu .kl-crumb > span { display: none; }
}
.kl-geri .k { display: none; }
.kl-cikis:hover { color: var(--bad); border-color: var(--bad); }
/* Dar telefonda çıkış düğmesine yer açmak için tema düğmesi gizlenir (tema cihazın ayarını izler) */
@media (max-width: 420px) { .kl-top.girisli #themeBtn { display: none; } }
@media (max-width: 480px) { .kl-geri .u { display: none; } .kl-geri .k { display: inline; } .kl-geri { padding: 6px 11px; font-size: .84rem; } }
.kl-spacer { flex: 1; }

/* Butonlar */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; border: 1px solid var(--line); background: var(--surface); padding: 10px 16px; border-radius: 12px; font-weight: 600; cursor: pointer; text-decoration: none; color: var(--ink); transition: transform .1s, background .15s, border-color .15s; white-space: nowrap; }
.btn:hover { border-color: var(--accent); }
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn-primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.btn-ok { background: var(--ok); color: #fff; border-color: var(--ok); }
.btn-sm { padding: 6px 10px; font-size: .88rem; border-radius: 10px; }
.icon-btn { width: 40px; height: 40px; border-radius: 12px; border: 1px solid var(--line); background: var(--surface); display: grid; place-items: center; cursor: pointer; color: var(--ink); }
.icon-btn:hover { border-color: var(--accent); }
/* Öğretmen kapısı: doğrulanana kadar içerik gizli */
html.kl-kapi main { display: none !important; }
html.kl-misafir-kilit main { display: none !important; }
.kl-misafir-bant { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin: 0 0 16px; padding: 12px 16px; border-radius: 14px; background: color-mix(in srgb, var(--accent) 10%, var(--surface)); border: 1px solid color-mix(in srgb, var(--accent) 30%, var(--line)); font-size: .92rem; }
.kl-yarisma-bant { position: fixed; left: 50%; bottom: 18px; transform: translateX(-50%); z-index: 900; display: flex; align-items: center; gap: 12px; padding: 14px 22px; border-radius: 99px; background: linear-gradient(135deg, #7c3aed, #1d5fd6); color: #fff; text-decoration: none; box-shadow: 0 14px 34px rgba(29, 95, 214, .45); font-size: 1rem; max-width: calc(100% - 24px); animation: klYarismaBant 1.6s ease-in-out infinite; }
.kl-yarisma-bant .fa-trophy { color: #ffd166; font-size: 1.3rem; }
@keyframes klYarismaBant { 50% { transform: translateX(-50%) scale(1.04); } }
.kl-misafir-bant > i { color: var(--accent); font-size: 1.1rem; }
.kl-misafir-bant span { flex: 1; min-width: 200px; }
.kl-kapi-kart { padding: 40px 0 60px; }
.kl-kapi-kart .card { max-width: 620px; margin: 0 auto; padding: 32px; text-align: center; }
.kl-kapi-kart h1 { font-size: clamp(1.5rem, 4vw, 2rem); margin: 8px 0 10px; }
.kl-kapi-kart p { color: var(--muted); }
.kl-kapi-ik { font-size: 2.4rem; color: var(--accent); }
.kl-kapi-eylem { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; margin-top: 22px; }
.kl-kapi-alt { margin-top: 18px; font-size: .9rem; }
.kl-kapi-alt a { color: var(--accent); font-weight: 600; }
.kl-kapi-yuk { color: var(--muted); padding: 20px 0; }
.kl-kapi-yuk i { color: var(--accent); margin-right: 6px; }
.kl-giris-btn { display: inline-flex; align-items: center; gap: 6px; white-space: nowrap; }
@media (max-width: 480px) { .kl-giris-btn span { display: none; } .kl-giris-btn { width: 36px; height: 36px; padding: 0; justify-content: center; } }
.icon-btn.kl-bagli { position: relative; border-color: var(--ok); }
.icon-btn.kl-bagli::after { content: ''; position: absolute; right: -3px; bottom: -3px; width: 11px; height: 11px; border-radius: 50%; background: var(--ok); border: 2px solid var(--bg); }

.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); }

/* Yıldızlar */
.stars { display: inline-flex; gap: 2px; color: var(--tile-line); }
.stars .on { color: var(--gold); }

/* Bildirim */
.toast { position: fixed; left: 50%; bottom: 24px; transform: translate(-50%, 20px); opacity: 0; background: var(--ink); color: var(--bg); padding: 12px 18px; border-radius: 12px; font-weight: 600; transition: .25s; z-index: 100; pointer-events: none; max-width: calc(100% - 32px); text-align: center; }
.toast.show { opacity: 1; transform: translate(-50%, 0); }

/* Diyalog */
dialog.kl-dialog { border: none; border-radius: 20px; padding: 28px; background: var(--surface); color: var(--ink); width: min(440px, calc(100% - 32px)); box-shadow: 0 24px 60px rgba(0,0,0,.25); text-align: center; margin: auto; }
dialog.kl-dialog::backdrop { background: rgba(10, 15, 25, 0.5); }
.kl-dialog h2 { font-size: 1.6rem; margin-bottom: 8px; }
.kl-dialog p { color: var(--muted); }
.kl-dialog .big-stars { font-size: 2.4rem; margin: 14px 0; }
.kl-dialog .actions { display: flex; gap: 10px; justify-content: center; margin-top: 20px; flex-wrap: wrap; }

/* Konfeti */
.confetti { position: fixed; top: -12px; width: 10px; height: 14px; z-index: 200; pointer-events: none; animation: dusus linear forwards; }
@keyframes dusus { to { transform: translateY(105vh) rotate(720deg); } }

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

/* Sesli yönerge menüsü */
.kl-menu { position: absolute; z-index: 60; width: 260px; background: var(--surface); border: 1px solid var(--line); border-radius: 12px; box-shadow: 0 12px 30px rgba(0, 0, 0, .18); padding: 6px; display: flex; flex-direction: column; gap: 2px; }
.kl-menu button, .kl-menu label { display: flex; gap: 10px; align-items: center; padding: 9px 10px; border-radius: 8px; border: 0; background: none; font: inherit; font-size: .9rem; color: var(--ink); cursor: pointer; text-align: left; }
.kl-menu button:hover, .kl-menu label:hover { background: var(--bg-alt); }
.kl-menu i { color: var(--accent); width: 16px; }

/* İmza (her sayfanın altı) */
.kl-imza { border-top: 1px solid var(--line); margin-top: 48px; padding: 22px 0 28px; color: var(--muted); font-size: .88rem; }
.kl-imza .wrap { display: flex; justify-content: space-between; align-items: center; gap: 10px 20px; flex-wrap: wrap; }
.kl-imza .wrap > span { display: flex; align-items: center; gap: 10px; }
.kl-imza .kl-yasal { display: flex; flex-wrap: wrap; gap: 6px 18px; justify-content: flex-start; margin-top: 12px; font-size: .8rem; }
.kl-imza .kl-yasal a { color: var(--muted); text-decoration: none; } .kl-imza .kl-yasal a:hover { color: var(--accent); text-decoration: underline; }
@media print { .kl-imza .kl-yasal { display: none; } }
.kl-imza .kl-logo { width: 26px; height: 26px; border-radius: 8px; box-shadow: none; }
.kl-imza b { color: var(--ink); }
.kl-imza a { color: var(--ink); font-weight: 700; text-decoration: none; border-bottom: 2px solid var(--accent); }
@media print { .kl-imza { display: none; } }

@media (max-width: 480px) {
    .kl-top .icon-btn { width: 36px; height: 36px; border-radius: 10px; }
    .kl-top-inner { gap: 8px; }
    .kl-brand { font-size: 1.1rem; gap: 8px; }
    .kl-logo { width: 32px; height: 32px; }
}

/* ---------- İpucu Asistanı ---------- */
.kl-ipucu { position: relative; display: inline-block; }
.kl-ipucu-btn { gap: 6px; border-color: color-mix(in srgb, var(--gold) 60%, var(--line)); background: color-mix(in srgb, var(--gold) 14%, var(--surface)); color: var(--ink); }
.kl-ipucu-btn .fa-lightbulb { color: var(--gold); }
.kl-ipucu-say { font: 600 .72rem var(--mono); color: var(--muted); }
.kl-ipucu-say:empty { display: none; }
.kl-ipucu-btn.dikkat { animation: klIpucuNabiz 1.4s ease-in-out infinite; }
@keyframes klIpucuNabiz { 0%, 100% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--gold) 55%, transparent); } 50% { box-shadow: 0 0 0 8px transparent; } }
@media (prefers-reduced-motion: reduce) { .kl-ipucu-btn.dikkat { animation: none; outline: 3px solid var(--gold); } }
.kl-ipucu-balon { position: absolute; bottom: calc(100% + 10px); left: 0; z-index: 30; width: max-content; max-width: 240px; background: var(--ink); color: var(--bg); font-size: .85rem; font-weight: 600; padding: 8px 30px 8px 12px; border-radius: 12px; box-shadow: var(--shadow); }
.kl-ipucu-balon::after { content: ''; position: absolute; top: 100%; left: 22px; border: 7px solid transparent; border-top-color: var(--ink); }
.kl-ipucu-balon .kl-ipucu-kapat { position: absolute; right: 6px; top: 4px; color: var(--bg); }
.kl-ipucu-panel { position: fixed; right: 16px; bottom: 16px; z-index: 60; width: min(400px, calc(100vw - 32px)); max-height: min(78vh, 600px); overflow: auto; background: var(--surface); border: 1px solid var(--line); border-radius: 16px; box-shadow: 0 12px 40px rgba(0, 0, 0, .22); text-align: left; }
.kl-ipucu-ust { z-index: 1; display: flex; align-items: center; gap: 8px; padding: 10px 12px; border-bottom: 1px solid var(--line); position: sticky; top: 0; background: var(--surface); }
.kl-ipucu-ust .kl-logo { width: 26px; height: 26px; }
.kl-ipucu-ust b { flex: 1; font-family: var(--display); }
.kl-ipucu-kapat { border: 0; background: none; font-size: 1.3rem; line-height: 1; cursor: pointer; color: var(--muted); padding: 2px 6px; }
.kl-ipucu-icerik { padding: 12px; display: grid; gap: 10px; font-size: .92rem; line-height: 1.55; color: var(--ink); }
.kl-ipucu-adim { border-radius: 12px; padding: 10px 12px; background: var(--bg-alt); display: grid; gap: 6px; animation: klIpucuGir .25s ease-out; }
.kl-ipucu-adim.a0 { background: color-mix(in srgb, var(--accent) 9%, var(--surface)); }
.kl-ipucu-adim.a1 { background: color-mix(in srgb, var(--gold) 13%, var(--surface)); }
.kl-ipucu-adim.a2 { background: color-mix(in srgb, var(--ok) 11%, var(--surface)); }
.kl-ipucu-etiket { font-size: .72rem; font-weight: 800; letter-spacing: .06em; text-transform: uppercase; color: var(--muted); display: flex; gap: 6px; align-items: center; }
.kl-ipucu-adim code, .kl-ipucu-adim pre { font-family: var(--mono); font-size: .86em; background: var(--surface); border-radius: 6px; padding: 1px 5px; }
.kl-ipucu-adim pre { padding: 8px 10px; white-space: pre-wrap; margin: 0; border: 1px solid var(--line); }
.kl-ipucu-adim .btn { justify-self: start; }
.kl-ipucu-sonraki { display: grid; gap: 6px; justify-items: start; }
.kl-ipucu-sonraki small { color: var(--muted); }
.kl-ipucu-son { color: var(--muted); font-size: .85rem; }
@keyframes klIpucuGir { from { opacity: 0; transform: translateY(6px); } }
@media (max-width: 560px) { .kl-ipucu-panel { left: 12px; right: 12px; bottom: 12px; width: auto; } }

/* Doğru yerden başlama: bölüm listesinin üstündeki öneri ve bölüm zorluk işareti */
.kl-sinif-yol { --yc: var(--ok); }
.kl-sinif-yol.bitti { --yc: var(--accent); font-size: 1rem; padding: 12px 16px; }
.kl-sinif-yol.bitti .btn { font-size: 1.02rem; padding: 11px 18px; box-shadow: 0 4px 14px color-mix(in srgb, var(--yc) 35%, transparent); }
.kl-ikincil .btn-primary { background: var(--surface); color: var(--ink); border-color: var(--line); }
/* Yol rehberi: bölüm listesinin üstünde "Sıradaki bölümün" kartı */
.kl-rehber { display: flex; align-items: center; gap: 10px 14px; flex-wrap: wrap; padding: 12px 16px; margin: 12px 0 14px; border-radius: 16px; background: color-mix(in srgb, var(--accent) 10%, var(--surface)); border: 2px solid color-mix(in srgb, var(--accent) 45%, var(--line)); font-size: 1rem; line-height: 1.45; }
.kl-rehber > span { flex: 1 1 240px; }
.kl-rehber .kl-rehber-git { font-size: 1.02rem; padding: 11px 18px; white-space: normal; box-shadow: 0 4px 14px color-mix(in srgb, var(--accent) 30%, transparent); }
.kl-rehber[data-tur="bitti"] { background: color-mix(in srgb, var(--ok) 11%, var(--surface)); border-color: color-mix(in srgb, var(--ok) 45%, var(--line)); }
.kl-rehber[data-tur="bitti"] .kl-rehber-git { background: var(--ok); border-color: var(--ok); color: #fff; }
.kl-rehber[data-tur="kisim"] { background: color-mix(in srgb, var(--gold) 14%, var(--surface)); border-color: color-mix(in srgb, var(--gold) 55%, var(--line)); }
@media (max-width: 560px) { .kl-rehber .kl-rehber-git { width: 100%; } }
.kl-oneri { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; padding: 10px 14px; margin: 14px 0 10px; border-radius: 14px; background: color-mix(in srgb, var(--accent) 9%, var(--surface)); border: 1px solid color-mix(in srgb, var(--accent) 35%, var(--line)); font-size: .92rem; line-height: 1.5; }
.kl-oneri > span { flex: 1 1 260px; }
.kl-oneri[data-tur="atla"] { background: color-mix(in srgb, var(--ok) 10%, var(--surface)); border-color: color-mix(in srgb, var(--ok) 40%, var(--line)); }
.kl-oneri[data-tur="isin"] { background: color-mix(in srgb, var(--gold) 14%, var(--surface)); border-color: color-mix(in srgb, var(--gold) 50%, var(--line)); }
.kl-oneri-kapat { background: none; border: 0; font-size: 1.3rem; line-height: 1; color: var(--muted); cursor: pointer; padding: 2px 6px; }
.z-kolay, .z-orta, .z-zor { box-shadow: inset 0 -3px 0 var(--z); }
.z-kolay { --z: #22c55e; } .z-orta { --z: #f59e0b; } .z-zor { --z: #ef4444; }
.kl-zorluk { display: flex; gap: 12px; justify-content: flex-end; margin: 4px 2px 8px; font-size: .74rem; color: var(--muted); }
.kl-zorluk span { box-shadow: none; display: inline-flex; align-items: center; gap: 5px; }
.kl-zorluk span::before { content: ''; width: 12px; height: 4px; border-radius: 2px; background: var(--z); }
/* Kademe kartlarında öğrencinin kendi kademesi */
.kl-senin { display: inline-flex; align-items: center; gap: 4px; align-self: flex-start; padding: 2px 9px; border-radius: 99px; background: var(--ok); color: #fff; font-size: .74rem; font-weight: 800; letter-spacing: .02em; }

/* Atölyelerde bölüm çubuğu (robot, web gibi): numaralı kutucuklar, alt satıra kayar */
.kl-bolumler { display: flex; flex-wrap: wrap; gap: 6px; padding: 2px 0; }
.kl-lvl { flex: 0 0 auto; min-width: 44px; height: 44px; border-radius: 12px; border: 1px solid var(--line); background: var(--surface); color: var(--ink); cursor: pointer; display: grid; place-items: center; font: 700 .95rem var(--body); position: relative; padding: 0 6px; }
.kl-lvl.done { border-color: var(--ok); }
.kl-lvl.active { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.kl-lvl.locked { opacity: .45; cursor: not-allowed; }
.kl-lvl .stars { font-size: 7px; position: absolute; bottom: 3px; }
.kl-lvl.active .stars { color: rgba(255,255,255,.35); }
.kl-lvl.active .stars .on { color: #ffe08a; }

/* Atölye düzeni (main.kl-atolye): geniş ekranda görev kartı solda yapışkan durur, program penceresi sağda;
   çocuk program içinde çalışırken görev metni ve "Kontrol et" hep gözünün önündedir. Dar ekranda alt alta. */
@media (min-width: 1100px) {
    body:has(.kl-atolye) .wrap { width: min(1560px, 100% - 40px); }
    .kl-atolye { display: grid; grid-template-columns: 340px minmax(0, 1fr); column-gap: 18px; align-items: start; }
    .kl-atolye > * { grid-column: 1 / -1; }
    .kl-atolye > .gorev { grid-column: 1; position: sticky; top: 72px; max-height: calc(100vh - 86px); overflow: auto; overscroll-behavior: contain; margin: 0 0 16px !important; scrollbar-width: thin; }
    .kl-atolye > .uyg { grid-column: 2; margin: 0 0 16px !important; min-width: 0; }
    .kl-atolye > .gorev .eylem { position: sticky; bottom: -18px; z-index: 1; background: var(--surface); margin-inline: -4px; padding: 8px 4px; }
    .kl-yuzen-kontrol { display: none !important; }
}
.kl-yuzen-kontrol { position: fixed; right: 14px; bottom: calc(14px + env(safe-area-inset-bottom)); z-index: 30; box-shadow: 0 8px 24px rgba(0,0,0,.25); border-radius: 999px; }
.kl-yuzen-kontrol[hidden] { display: none; }