/* ==========================================================================
   İngilizce 3000 — Tasarım Sistemi
   Editoryal + oyunbaz yön. Açık tema (dark mode kapsam dışı).
   Bu dosya TÜM sayfalarda ortaktır: /, /dersler, /gizlilik, /destek
   ========================================================================== */

:root {
    /* --- Marka --- */
    --violet: #5D10E3;
    --violet-deep: #3D0A96;
    --violet-ink: #2A0668;
    --violet-tint: #EDE4FD;
    --violet-wash: #F6F1FE;

    /* --- Zemin ve metin --- */
    --paper: #FBFAFF;
    --surface: #FFFFFF;
    --ink: #16112B;
    --ink-soft: #4A4363;
    --ink-muted: #6F6689;

    /* --- Çizgiler --- */
    --rule: rgba(22, 17, 43, 0.12);
    --rule-strong: rgba(22, 17, 43, 0.22);
    --rule-violet: rgba(93, 16, 227, 0.16);

    /* --- Oyunlaştırma vurguları --- */
    --flame: #FF7A00;
    --coral: #FF4D6D;
    --gold: #FFB800;
    --green: #2EC66D;
    --green-deep: #1B9E52;
    --danger: #E94F4F;
    --grad-warm: linear-gradient(104deg, #FF8A00 0%, #FF4D6D 100%);
    --grad-violet: linear-gradient(140deg, #5D10E3 0%, #8B3BFF 55%, #B06BFF 100%);

    /* --- Seviye renkleri (uygulamayla eşleşir) --- */
    --lvl-a1: #3A3AB7;
    --lvl-a2: #8A8A25;
    --lvl-b1: #B7743A;
    --lvl-b2: #3A66B7;
    --lvl-c1: #A23AB7;

    /* --- Tipografi --- */
    --font-body: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
    --font-display: 'Outfit', 'Inter', system-ui, sans-serif;
    --font-editorial: 'Instrument Serif', Georgia, 'Times New Roman', serif;

    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: clamp(1.0625rem, 1rem + 0.3vw, 1.1875rem);
    --text-xl: clamp(1.25rem, 1.1rem + 0.6vw, 1.5rem);
    --text-2xl: clamp(1.5rem, 1.25rem + 1.1vw, 2.125rem);
    --text-3xl: clamp(2rem, 1.5rem + 2.2vw, 3.25rem);
    --text-display: clamp(2.75rem, 1.4rem + 6.2vw, 6.5rem);

    /* --- Ritim --- */
    --gutter: clamp(1.25rem, 4vw, 2.5rem);
    --section-y: clamp(4.5rem, 3rem + 7vw, 9rem);
    --shell: 1240px;
    --shell-narrow: 820px;

    /* --- Yüzey --- */
    --r-sm: 10px;
    --r-md: 18px;
    --r-lg: 28px;
    --r-xl: 40px;
    --shadow-sm: 0 2px 8px rgba(42, 6, 104, 0.05);
    --shadow-md: 0 14px 34px -12px rgba(42, 6, 104, 0.18);
    --shadow-lg: 0 36px 70px -24px rgba(42, 6, 104, 0.28);
    --shadow-violet: 0 18px 40px -14px rgba(93, 16, 227, 0.5);

    /* --- Hareket --- */
    --dur-fast: 160ms;
    --dur: 280ms;
    --dur-slow: 620ms;
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-spring: cubic-bezier(0.34, 1.4, 0.5, 1);
}

/* --------------------------------------------------------------------------
   Reset
   -------------------------------------------------------------------------- */
*,
*::before,
*::after { box-sizing: border-box; }

* { margin: 0; padding: 0; }

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    scroll-padding-top: 92px;
}

body {
    font-family: var(--font-body);
    font-size: var(--text-base);
    line-height: 1.65;
    color: var(--ink);
    background: var(--paper);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

img,
video,
svg { display: block; max-width: 100%; }

img,
video { height: auto; }

a { color: var(--violet); text-decoration: none; }

button,
input,
textarea,
select { font: inherit; color: inherit; }

button { background: none; border: none; cursor: pointer; }

ul, ol { list-style: none; }

:focus-visible {
    outline: 3px solid var(--violet);
    outline-offset: 3px;
    border-radius: 4px;
}

::selection {
    background: var(--violet);
    color: #fff;
}

/* --------------------------------------------------------------------------
   Tipografi ölçeği
   -------------------------------------------------------------------------- */
h1, h2, h3, h4 {
    font-family: var(--font-display);
    font-weight: 800;
    line-height: 1.05;
    letter-spacing: -0.03em;
    text-wrap: balance;
}

h1 { font-size: var(--text-3xl); }
h2 { font-size: var(--text-2xl); }
h3 { font-size: var(--text-xl); letter-spacing: -0.02em; }
h4 { font-size: var(--text-lg); letter-spacing: -0.01em; }

/* Editoryal italik vurgu — dergi hissini veren kontrast */
.serif {
    font-family: var(--font-editorial);
    font-weight: 400;
    font-style: italic;
    letter-spacing: -0.01em;
}

.display {
    font-family: var(--font-display);
    font-weight: 800;
    font-size: var(--text-display);
    line-height: 0.92;
    letter-spacing: -0.045em;
}

/* Bölüm üstü küçük etiket */
.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.55em;
    font-family: var(--font-body);
    font-size: var(--text-xs);
    font-weight: 700;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--ink-muted);
}

.eyebrow::before {
    content: "";
    width: 1.75rem;
    height: 1px;
    background: var(--ink-muted);
    opacity: 0.55;
}

.eyebrow--violet { color: var(--violet); }
.eyebrow--violet::before { background: var(--violet); }

/* Kenar boşluğundaki dev bölüm numarası */
.numeral {
    font-family: var(--font-display);
    font-weight: 800;
    font-size: clamp(3rem, 2rem + 4.5vw, 6rem);
    line-height: 0.8;
    letter-spacing: -0.05em;
    color: transparent;
    -webkit-text-stroke: 2px rgba(93, 16, 227, 0.38);
    user-select: none;
}

.lede {
    font-size: var(--text-lg);
    line-height: 1.6;
    color: var(--ink-soft);
    text-wrap: pretty;
}

/* --------------------------------------------------------------------------
   Yerleşim yardımcıları
   -------------------------------------------------------------------------- */
.shell {
    width: 100%;
    max-width: var(--shell);
    margin-inline: auto;
    padding-inline: var(--gutter);
}

.shell--narrow { max-width: var(--shell-narrow); }

.section { padding-block: var(--section-y); }

.rule {
    height: 1px;
    background: var(--rule);
    border: 0;
}

.stack > * + * { margin-top: 1rem; }

/* --------------------------------------------------------------------------
   Butonlar
   -------------------------------------------------------------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.6em;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: var(--text-sm);
    letter-spacing: -0.01em;
    padding: 0.85em 1.5em;
    border-radius: 999px;
    border: 1.5px solid transparent;
    cursor: pointer;
    transition: transform var(--dur) var(--ease-out),
                box-shadow var(--dur) var(--ease-out),
                background-color var(--dur) var(--ease-out),
                color var(--dur) var(--ease-out),
                border-color var(--dur) var(--ease-out);
}

.btn:active { transform: translateY(1px) scale(0.99); }

.btn--primary {
    background: var(--violet);
    color: #fff;
    box-shadow: var(--shadow-violet);
}

.btn--primary:hover {
    background: var(--violet-deep);
    transform: translateY(-2px);
    box-shadow: 0 22px 46px -14px rgba(93, 16, 227, 0.62);
}

.btn--ghost {
    background: transparent;
    color: var(--ink);
    border-color: var(--rule-strong);
}

.btn--ghost:hover {
    border-color: var(--violet);
    color: var(--violet);
    background: var(--violet-wash);
    transform: translateY(-2px);
}

/* Mağaza butonları — iki satırlı, ikonlu */
.btn-store {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.8rem 1.4rem;
    border-radius: var(--r-md);
    background: var(--ink);
    color: #fff;
    border: 1.5px solid var(--ink);
    font-family: var(--font-display);
    transition: transform var(--dur) var(--ease-out),
                box-shadow var(--dur) var(--ease-out),
                background-color var(--dur) var(--ease-out);
    box-shadow: 0 12px 28px -12px rgba(22, 17, 43, 0.55);
}

.btn-store:hover {
    transform: translateY(-3px);
    background: var(--violet-ink);
    box-shadow: 0 22px 44px -14px rgba(42, 6, 104, 0.6);
}

.btn-store:active { transform: translateY(-1px); }

.btn-store svg {
    width: 26px;
    height: 26px;
    flex: none;
    fill: currentColor;
}

.btn-store__lines {
    display: flex;
    flex-direction: column;
    line-height: 1.15;
    text-align: left;
}

.btn-store__sub {
    font-family: var(--font-body);
    font-size: 0.6875rem;
    font-weight: 500;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    opacity: 0.72;
}

.btn-store__main {
    font-size: 1.0625rem;
    font-weight: 700;
    letter-spacing: -0.01em;
}

.store-row {
    display: flex;
    flex-wrap: wrap;
    gap: 0.875rem;
}

/* --------------------------------------------------------------------------
   Rozetler / çipler
   -------------------------------------------------------------------------- */
.chip {
    display: inline-flex;
    align-self: flex-start;
    align-items: center;
    gap: 0.45em;
    padding: 0.4em 0.85em;
    border-radius: 999px;
    font-size: var(--text-xs);
    font-weight: 700;
    letter-spacing: 0.01em;
    background: var(--violet-tint);
    color: var(--violet-deep);
}

.chip--warm {
    background: var(--grad-warm);
    color: #fff;
}

.chip--green {
    background: rgba(46, 198, 109, 0.14);
    color: var(--green-deep);
}

.chip--gold {
    background: rgba(255, 184, 0, 0.18);
    color: #8A6200;
}

.chip--outline {
    background: transparent;
    border: 1.5px solid var(--rule-strong);
    color: var(--ink-soft);
}

/* Seviye rozeti */
.level {
    display: inline-flex;
    align-self: flex-start;
    align-items: center;
    justify-content: center;
    min-width: 2.5rem;
    padding: 0.25em 0.7em;
    border-radius: 999px;
    font-family: var(--font-display);
    font-size: var(--text-xs);
    font-weight: 800;
    letter-spacing: 0.06em;
    color: #fff;
    background: var(--ink-muted);
}

.level--a1 { background: var(--lvl-a1); }
.level--a2 { background: var(--lvl-a2); }
.level--b1 { background: var(--lvl-b1); }
.level--b2 { background: var(--lvl-b2); }
.level--c1 { background: var(--lvl-c1); }

/* --------------------------------------------------------------------------
   Site başlığı (tüm sayfalarda ortak)
   -------------------------------------------------------------------------- */
.site-head {
    position: sticky;
    top: 0;
    z-index: 200;
    background: rgba(251, 250, 255, 0.82);
    backdrop-filter: saturate(1.6) blur(14px);
    -webkit-backdrop-filter: saturate(1.6) blur(14px);
    border-bottom: 1px solid transparent;
    transition: border-color var(--dur) var(--ease-out),
                background-color var(--dur) var(--ease-out);
}

.site-head.is-stuck {
    border-bottom-color: var(--rule);
    background: rgba(251, 250, 255, 0.94);
}

.site-head__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    min-height: 72px;
}

.wordmark {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-display);
    font-weight: 800;
    font-size: 1.25rem;
    letter-spacing: -0.03em;
    color: var(--ink);
    flex: none;
}

/* Gerçek uygulama ikonu (yeşil papağan) violet gradyan kutunun üstünde.
   Mağaza sayfasıyla aynı marka işareti: reklam → site → mağaza akışında
   kullanıcı hep aynı şeyi görmeli. */
.wordmark__mark {
    display: block;
    width: 34px;
    height: 34px;
    flex: none;
    padding: 3px;
    border-radius: 11px;
    background: var(--grad-violet);
    box-shadow: var(--shadow-sm);
    object-fit: contain;
}

.wordmark em {
    font-style: normal;
    color: var(--violet);
}

.site-nav {
    display: flex;
    align-items: center;
    gap: clamp(0.75rem, 1.6vw, 1.75rem);
}

.site-nav a {
    position: relative;
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--ink-soft);
    padding-block: 0.35rem;
    transition: color var(--dur) var(--ease-out);
}

.site-nav a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 100%;
    height: 2px;
    background: var(--violet);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform var(--dur) var(--ease-out);
}

.site-nav a:hover { color: var(--ink); }

.site-nav a:hover::after {
    transform: scaleX(1);
    transform-origin: left;
}

.site-nav a.is-featured {
    color: var(--violet);
    font-weight: 700;
}

.head-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex: none;
}

.menu-btn {
    display: none;
    width: 42px;
    height: 42px;
    border-radius: 12px;
    border: 1.5px solid var(--rule-strong);
    padding: 0;
    place-items: center;
}

.menu-btn span {
    display: block;
    width: 18px;
    height: 2px;
    border-radius: 2px;
    background: var(--ink);
    transition: transform var(--dur) var(--ease-out),
                opacity var(--dur-fast) var(--ease-out);
}

.menu-btn span + span { margin-top: 4px; }

.menu-btn[aria-expanded="true"] span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.menu-btn[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.menu-btn[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

@media (max-width: 940px) {
    .menu-btn { display: grid; }

    .site-nav {
        position: fixed;
        inset: 72px 0 auto;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        padding: 0.5rem var(--gutter) 1.5rem;
        background: var(--surface);
        border-bottom: 1px solid var(--rule);
        box-shadow: var(--shadow-md);
        transform: translateY(-8px);
        opacity: 0;
        visibility: hidden;
        transition: transform var(--dur) var(--ease-out),
                    opacity var(--dur) var(--ease-out),
                    visibility var(--dur);
    }

    .site-nav.is-open {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .site-nav a {
        padding: 0.9rem 0;
        font-size: 1.0625rem;
        color: var(--ink);
        border-bottom: 1px solid var(--rule);
    }

    .site-nav a::after { display: none; }

    .head-actions .btn { display: none; }
}

/* --------------------------------------------------------------------------
   Site altlığı (tüm sayfalarda ortak)
   -------------------------------------------------------------------------- */
.site-foot {
    border-top: 1px solid var(--rule);
    background: var(--surface);
    padding-block: clamp(3rem, 5vw, 4.5rem) 2rem;
}

.site-foot__grid {
    display: grid;
    grid-template-columns: minmax(0, 1.6fr) repeat(2, minmax(0, 1fr));
    gap: clamp(2rem, 4vw, 3.5rem);
    align-items: start;
}

.site-foot__about p {
    margin-top: 1rem;
    max-width: 34ch;
    color: var(--ink-muted);
    font-size: var(--text-sm);
}

.foot-col h4 {
    font-size: var(--text-xs);
    font-weight: 700;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--ink-muted);
    font-family: var(--font-body);
    margin-bottom: 1rem;
}

.foot-col a {
    display: block;
    padding-block: 0.4rem;
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--ink-soft);
    transition: color var(--dur-fast) var(--ease-out),
                transform var(--dur-fast) var(--ease-out);
}

.foot-col a:hover {
    color: var(--violet);
    transform: translateX(3px);
}

.site-foot__base {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 0.75rem;
    margin-top: clamp(2.5rem, 5vw, 4rem);
    padding-top: 1.5rem;
    border-top: 1px solid var(--rule);
    font-size: var(--text-sm);
    color: var(--ink-muted);
}

@media (max-width: 720px) {
    .site-foot__grid { grid-template-columns: 1fr; gap: 2.25rem; }
}

/* --------------------------------------------------------------------------
   Uzun metin (gizlilik, destek, ders içeriği)
   -------------------------------------------------------------------------- */
.prose {
    font-size: var(--text-base);
    line-height: 1.75;
    color: var(--ink-soft);
}

.prose > * + * { margin-top: 1.1em; }

.prose h1 {
    font-size: var(--text-3xl);
    color: var(--ink);
    letter-spacing: -0.04em;
}

.prose h2 {
    margin-top: 2.25em;
    padding-bottom: 0.45em;
    border-bottom: 1px solid var(--rule);
    font-size: var(--text-xl);
    color: var(--ink);
}

.prose h3 {
    margin-top: 1.75em;
    font-size: var(--text-lg);
    color: var(--ink);
}

.prose ul,
.prose ol { padding-left: 1.35em; }

.prose ul { list-style: disc; }
.prose ol { list-style: decimal; }
.prose li { margin-top: 0.55em; }
.prose li::marker { color: var(--violet); }

.prose b,
.prose strong { color: var(--ink); font-weight: 700; }

.prose a {
    font-weight: 600;
    text-decoration: underline;
    text-decoration-color: var(--rule-violet);
    text-underline-offset: 3px;
    transition: text-decoration-color var(--dur-fast) var(--ease-out);
}

.prose a:hover { text-decoration-color: var(--violet); }

.prose code {
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
    font-size: 0.875em;
    padding: 0.15em 0.4em;
    border-radius: 6px;
    background: var(--violet-tint);
    color: var(--violet-deep);
}

.prose table {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--text-sm);
}

.prose th,
.prose td {
    padding: 0.7em 0.9em;
    border-bottom: 1px solid var(--rule);
    text-align: left;
}

.prose th {
    font-family: var(--font-display);
    font-weight: 700;
    color: var(--ink);
}

.meta {
    font-size: var(--text-sm);
    color: var(--ink-muted);
}

/* Belge sayfası kabuğu */
.doc {
    padding-block: clamp(2.5rem, 5vw, 4.5rem);
}

.doc__card {
    background: var(--surface);
    border: 1px solid var(--rule);
    border-radius: var(--r-lg);
    padding: clamp(1.75rem, 4vw, 3.5rem);
    box-shadow: var(--shadow-md);
}

.backlink {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1.75rem;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: var(--text-sm);
    color: var(--ink-soft);
    transition: gap var(--dur) var(--ease-out), color var(--dur) var(--ease-out);
}

.backlink:hover { color: var(--violet); gap: 0.85rem; }

/* --------------------------------------------------------------------------
   Kaydırınca beliren öğeler
   -------------------------------------------------------------------------- */
/* Yalnızca JS çalışıyorsa gizle — betik yüklenmezse içerik görünür kalır. */
.js [data-reveal] {
    opacity: 0;
    transform: translateY(22px);
    transition: opacity var(--dur-slow) var(--ease-out),
                transform var(--dur-slow) var(--ease-out);
    transition-delay: var(--reveal-delay, 0ms);
}

.js [data-reveal].is-visible {
    opacity: 1;
    transform: none;
}

/* --------------------------------------------------------------------------
   Hareket azaltma tercihi
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }

    [data-reveal] {
        opacity: 1 !important;
        transform: none !important;
    }
}

/* --------------------------------------------------------------------------
   Çerez onay şeridi (js/analytics.js tarafından oluşturulur)
   -------------------------------------------------------------------------- */
.consent-bar {
    position: fixed;
    z-index: 900;
    left: 50%;
    bottom: clamp(0.75rem, 2vw, 1.5rem);
    transform: translateX(-50%);
    width: min(52rem, calc(100vw - 1.5rem));
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 1rem 1.5rem;
    padding: 1rem clamp(1rem, 3vw, 1.5rem);
    border: 1px solid var(--rule);
    border-radius: var(--r-lg);
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: saturate(1.6) blur(16px);
    -webkit-backdrop-filter: saturate(1.6) blur(16px);
    box-shadow: var(--shadow-lg);
    animation: consent-rise var(--dur-slow) var(--ease-out) both;
}

@keyframes consent-rise {
    from { opacity: 0; transform: translate(-50%, 14px); }
    to { opacity: 1; transform: translate(-50%, 0); }
}

.consent-bar__text {
    flex: 1 1 22rem;
    margin: 0;
    font-size: var(--text-sm);
    line-height: 1.5;
    color: var(--ink-soft);
    text-wrap: pretty;
}

.consent-bar__text a {
    font-weight: 600;
    text-decoration: underline;
    text-underline-offset: 2px;
}

.consent-bar__actions {
    display: flex;
    gap: 0.6rem;
    flex: none;
}

.consent-bar__actions .btn { padding: 0.7em 1.25em; }

@media (max-width: 560px) {
    .consent-bar__actions { width: 100%; }
    .consent-bar__actions .btn { flex: 1; }
}

@media (prefers-reduced-motion: reduce) {
    .consent-bar { animation: none; }
}

/* --- Dil degistirme baglantisi -------------------------------------
 *
 * Basliktaki her yuzeyde ayni gorunsun diye tasarim sisteminde:
 * ana sayfa, ders sayfalari ve belge sayfalari uc ayri sablon ama
 * ayni bileseni kullaniyor.
 *
 * Hedef dilin adi KENDI yazisiyla yaziliyor ("العربية" / "Türkçe");
 * "TR/AR" gibi kisaltmalar hangi yone gidildigini soylemiyor.
 */
.lang-switch {
    display: inline-flex;
    align-items: center;
    gap: 0.4em;
    padding: 0.5em 0.9em;
    border: 1px solid var(--rule);
    border-radius: 999px;
    background: var(--surface);
    color: var(--ink-soft);
    font-size: 0.875rem;
    font-weight: 600;
    line-height: 1;
    white-space: nowrap;
    transition: border-color var(--dur) var(--ease-out),
                color var(--dur) var(--ease-out),
                background-color var(--dur) var(--ease-out);
}
.lang-switch:hover,
.lang-switch:focus-visible {
    border-color: var(--rule-violet);
    color: var(--violet);
    background: var(--violet-tint);
}
.lang-switch svg { flex: none; opacity: 0.75; }
.lang-switch:hover svg { opacity: 1; }

/* Hedef dilin adi kendi yonunde cizilsin: RTL bir sayfadaki
   "Türkçe" ya da LTR bir sayfadaki "العربية" cevresindeki
   noktalamayla yer degistirmesin. */
.lang-switch span { unicode-bidi: isolate; }

/* Dar ekranda yalnizca kure kalir: baslikta uc oge birden
   sigmiyor ve ilk feda edilecek olan metin. */
@media (max-width: 30rem) {
    .lang-switch span { display: none; }
    .lang-switch { padding: 0.5em; }
}