/* ============================================================
   YucePay Docs — Modern 3-column developer documentation
   Brand: navy #012557 · cyan #00b9e4
   ============================================================ */

:root {
    --brand-navy: #012557;
    --brand-navy-700: #023a7d;
    --brand-cyan: #00b9e4;
    --brand-cyan-600: #009ec4;

    --bg: #ffffff;
    --bg-soft: #f6f8fb;
    --bg-code: #0d1b2e;
    --bg-code-header: #0a1523;

    --sidebar-bg: #001a3d;
    --sidebar-bg-2: #01214d;
    --sidebar-fg: #b7c6de;
    --sidebar-fg-muted: #7488a8;
    --sidebar-active: #00b9e4;

    --text: #1a2432;
    --text-muted: #5a6b82;
    --text-faint: #8595a9;
    --border: #e5eaf1;
    --border-strong: #d4dce7;

    --radius: 10px;
    --radius-sm: 7px;
    --shadow-sm: 0 1px 2px rgba(2, 20, 45, .06);
    --shadow: 0 4px 18px rgba(2, 20, 45, .08);
    --shadow-lg: 0 12px 40px rgba(2, 20, 45, .14);

    --sidebar-w: 288px;
    --aside-w: 440px;
    --topbar-h: 60px;

    --method-get: #12a150;
    --method-post: #0a7bd0;
    --method-put: #b8860b;
    --method-delete: #d64550;

    --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --font-mono: "JetBrains Mono", "SFMono-Regular", ui-monospace, "Cascadia Code", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 80px; }

body {
    margin: 0;
    font-family: var(--font-sans);
    font-size: 15px;
    line-height: 1.65;
    color: var(--text);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

a { color: var(--brand-cyan-600); text-decoration: none; }
a:hover { color: var(--brand-navy); }

/* ---------- Shell ---------- */
.docs-shell { display: flex; min-height: 100vh; }

/* ---------- Sidebar ---------- */
.docs-sidebar {
    width: var(--sidebar-w);
    flex: 0 0 var(--sidebar-w);
    background: var(--sidebar-bg);
    color: var(--sidebar-fg);
    position: fixed;
    top: 0; left: 0; bottom: 0;
    display: flex;
    flex-direction: column;
    z-index: 60;
    border-right: 1px solid rgba(255, 255, 255, .06);
}

.docs-sidebar__brand {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 18px 22px;
    min-height: var(--topbar-h);
    border-bottom: 1px solid rgba(255, 255, 255, .07);
}
.docs-sidebar__brand img { height: 30px; width: auto; }
.docs-sidebar__brand .brand-badge {
    font-size: 11px; font-weight: 600; letter-spacing: .04em;
    color: #001a3d; background: var(--brand-cyan);
    padding: 2px 8px; border-radius: 20px; text-transform: uppercase;
}

.docs-sidebar__search { padding: 14px 18px 6px; }
.docs-search-box {
    display: flex; align-items: center; gap: 8px;
    background: rgba(255, 255, 255, .06);
    border: 1px solid rgba(255, 255, 255, .1);
    border-radius: var(--radius-sm);
    padding: 8px 11px;
    color: var(--sidebar-fg-muted);
    transition: border-color .15s, background .15s;
}
.docs-search-box:focus-within { border-color: var(--brand-cyan); background: rgba(255, 255, 255, .09); }
.docs-search-box input {
    border: 0; background: transparent; outline: 0; color: #fff;
    font-size: 13.5px; width: 100%; font-family: var(--font-sans);
}
.docs-search-box input::placeholder { color: var(--sidebar-fg-muted); }
.docs-search-box kbd {
    font-size: 10.5px; font-family: var(--font-mono);
    background: rgba(255,255,255,.09); border: 1px solid rgba(255,255,255,.14);
    border-radius: 4px; padding: 1px 5px; color: var(--sidebar-fg-muted);
}

.docs-nav {
    flex: 1 1 auto;
    overflow-y: auto;
    padding: 8px 12px 24px;
    scrollbar-width: thin;
    scrollbar-color: rgba(255,255,255,.16) transparent;
}
.docs-nav::-webkit-scrollbar { width: 8px; }
.docs-nav::-webkit-scrollbar-thumb { background: rgba(255,255,255,.14); border-radius: 8px; }

.docs-nav__group { margin-top: 16px; }
.docs-nav__group-title {
    font-size: 11px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase;
    color: var(--sidebar-fg-muted); padding: 6px 12px; margin: 0;
}
.docs-nav a {
    display: flex; align-items: center; gap: 10px;
    padding: 8px 12px; border-radius: var(--radius-sm);
    color: var(--sidebar-fg); font-size: 14px; font-weight: 500;
    transition: background .13s, color .13s;
}
.docs-nav a i { font-size: 17px; opacity: .85; width: 18px; text-align: center; }
.docs-nav a:hover { background: #0a2f57; color: #ffffff; }
.docs-nav a:hover i { opacity: 1; }
.docs-nav a.active {
    background: #0e3a6b;
    color: #ffffff;
}
.docs-nav a.active i { opacity: 1; color: var(--brand-cyan); }

.docs-sidebar__footer {
    padding: 12px 16px;
    border-top: 1px solid rgba(255, 255, 255, .07);
    display: flex; align-items: center; justify-content: space-between; gap: 8px;
}

/* language switch */
.lang-switch { display: inline-flex; background: rgba(255,255,255,.06); border-radius: 20px; padding: 3px; }
.lang-switch button {
    border: 0; background: transparent; color: var(--sidebar-fg-muted);
    font-size: 12px; font-weight: 600; padding: 4px 11px; border-radius: 16px; cursor: pointer;
    font-family: var(--font-sans);
}
.lang-switch button.active { background: var(--brand-cyan); color: #001a3d; }

.btn-panel {
    display: inline-flex; align-items: center; gap: 6px;
    background: var(--brand-cyan); color: #001a3d !important;
    font-size: 13px; font-weight: 600; padding: 7px 13px; border-radius: var(--radius-sm);
    transition: filter .15s;
}
.btn-panel:hover { filter: brightness(1.08); color: #001a3d; }

/* ---------- Main ---------- */
.docs-main {
    flex: 1 1 auto;
    margin-left: var(--sidebar-w);
    min-width: 0;
    display: flex;
    flex-direction: column;
}

.docs-topbar {
    position: sticky; top: 0; z-index: 40;
    height: var(--topbar-h);
    display: flex; align-items: center; justify-content: space-between; gap: 16px;
    padding: 0 32px;
    background: rgba(255, 255, 255, .86);
    backdrop-filter: saturate(160%) blur(10px);
    border-bottom: 1px solid var(--border);
}
.docs-breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 13.5px; color: var(--text-muted); }
.docs-breadcrumb i { font-size: 15px; opacity: .5; }
.docs-breadcrumb .current { color: var(--text); font-weight: 600; }
.docs-topbar__right { display: flex; align-items: center; gap: 12px; }
.topbar-link { color: var(--text-muted); font-size: 13.5px; font-weight: 500; display: inline-flex; align-items: center; gap: 5px; }
.topbar-link:hover { color: var(--brand-navy); }

.mobile-toggle { display: none; background: 0; border: 0; color: var(--text); font-size: 22px; cursor: pointer; }

/* ---------- Content grid (prose + code aside) ---------- */
.docs-page { flex: 1 1 auto; }
.docs-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) var(--aside-w);
    gap: 40px;
    max-width: 1400px;
    margin: 0 auto;
    padding: 40px 32px 80px;
    align-items: start;
}
.docs-grid--single { grid-template-columns: minmax(0, 1fr); max-width: 940px; }

.docs-prose { min-width: 0; }
.docs-aside {
    position: sticky; top: calc(var(--topbar-h) + 24px);
    display: flex; flex-direction: column; gap: 18px;
}

/* ---------- Prose typography ---------- */
.docs-prose h1 { font-size: 32px; line-height: 1.2; font-weight: 800; letter-spacing: -.02em; margin: 0 0 10px; color: var(--brand-navy); }
.docs-prose h2 { font-size: 23px; font-weight: 700; letter-spacing: -.01em; margin: 44px 0 14px; padding-top: 8px; color: var(--brand-navy); scroll-margin-top: 80px; }
.docs-prose h3 { font-size: 18px; font-weight: 700; margin: 30px 0 10px; color: #17324f; scroll-margin-top: 80px; }
.docs-prose h4 { font-size: 15px; font-weight: 700; margin: 22px 0 8px; color: #17324f; }
.docs-prose p { margin: 0 0 14px; color: #2c3a4d; }
.docs-prose ul, .docs-prose ol { margin: 0 0 16px; padding-left: 22px; color: #2c3a4d; }
.docs-prose li { margin: 5px 0; }
.docs-prose strong { color: var(--brand-navy); font-weight: 650; }
.docs-prose code:not(pre code) {
    font-family: var(--font-mono); font-size: .86em;
    background: #eef2f7; color: #0a4d8c; padding: 2px 6px; border-radius: 5px;
    border: 1px solid #e2e8f1;
}
.docs-lead { font-size: 17px; line-height: 1.6; color: var(--text-muted); margin-bottom: 24px; }
.section-eyebrow { font-size: 12px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--brand-cyan-600); margin-bottom: 8px; }

/* ---------- Hero (overview) ---------- */
.docs-hero {
    background: var(--brand-navy);
    color: #fff; border-radius: 14px; padding: 44px 40px; margin-bottom: 40px; position: relative; overflow: hidden;
}
.docs-hero h1 { color: #fff; font-size: 36px; margin: 0 0 12px; }
.docs-hero p { color: #c9d9ef; font-size: 17px; max-width: 620px; margin: 0 0 24px; }
.docs-hero .hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.hero-btn { display: inline-flex; align-items: center; gap: 8px; padding: 11px 20px; border-radius: 9px; font-weight: 600; font-size: 14.5px; transition: transform .12s, filter .15s; }
.hero-btn--primary { background: var(--brand-cyan); color: #001a3d; }
.hero-btn--ghost { background: rgba(255,255,255,.1); color: #fff; border: 1px solid rgba(255,255,255,.2); }
.hero-btn:hover { transform: translateY(-2px); }
.hero-btn--primary:hover { color: #001a3d; filter: brightness(1.06); }
.hero-btn--ghost:hover { color: #fff; background: rgba(255,255,255,.16); }

/* ---------- Feature cards ---------- */
.card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 16px; margin: 24px 0; }
.doc-card {
    display: block; padding: 20px; border: 1px solid var(--border); border-radius: var(--radius);
    background: #fff; transition: border-color .15s, box-shadow .15s, transform .15s;
}
.doc-card:hover { border-color: var(--brand-cyan); box-shadow: var(--shadow); transform: translateY(-3px); }
.doc-card__icon {
    width: 42px; height: 42px; border-radius: 10px; display: grid; place-items: center;
    background: #eef2f7; color: var(--brand-navy);
    font-size: 21px; margin-bottom: 12px;
}
.doc-card__title { font-weight: 700; font-size: 15.5px; color: var(--brand-navy); margin: 0 0 4px; }
.doc-card__desc { font-size: 13.5px; color: var(--text-muted); margin: 0; line-height: 1.5; }

/* ---------- Endpoint header ---------- */
.endpoint {
    display: flex; align-items: center; gap: 12px; flex-wrap: wrap;
    background: var(--bg-soft); border: 1px solid var(--border);
    border-radius: var(--radius); padding: 12px 16px; margin: 8px 0 20px;
}
.http-method {
    font-family: var(--font-mono); font-size: 12px; font-weight: 700; letter-spacing: .03em;
    color: #fff; padding: 4px 10px; border-radius: 6px; text-transform: uppercase;
}
.http-method.get { background: var(--method-get); }
.http-method.post { background: var(--method-post); }
.http-method.put { background: var(--method-put); }
.http-method.delete { background: var(--method-delete); }
.endpoint__path { font-family: var(--font-mono); font-size: 14.5px; color: var(--brand-navy); font-weight: 600; word-break: break-all; }
.endpoint__auth { margin-left: auto; font-size: 12px; color: var(--text-muted); display: inline-flex; align-items: center; gap: 5px; }
.endpoint__auth i { color: var(--method-get); }

/* ---------- Param / response tables ---------- */
.param-table { width: 100%; border-collapse: collapse; margin: 8px 0 22px; font-size: 14px; }
.param-table th {
    text-align: left; font-size: 11.5px; font-weight: 700; letter-spacing: .05em; text-transform: uppercase;
    color: var(--text-faint); padding: 8px 12px; border-bottom: 2px solid var(--border-strong);
}
.param-table td { padding: 11px 12px; border-bottom: 1px solid var(--border); vertical-align: top; }
.param-table tr:last-child td { border-bottom: 0; }
.param-name { font-family: var(--font-mono); font-size: 13px; color: #0a4d8c; font-weight: 600; white-space: nowrap; }
.param-type { font-family: var(--font-mono); font-size: 12.5px; color: var(--text-muted); }
.param-desc { color: #2c3a4d; }
.req-badge { display: inline-block; font-size: 10.5px; font-weight: 700; text-transform: uppercase; letter-spacing: .03em; padding: 1px 7px; border-radius: 20px; }
.req-badge.required { color: #b23b45; background: #fdecee; }
.req-badge.optional { color: #64748b; background: #eef1f5; }

/* ---------- Code aside panel ---------- */
.code-panel { background: var(--bg-code); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-lg); border: 1px solid rgba(0,0,0,.4); }
.code-panel__head { display: flex; align-items: center; justify-content: space-between; background: var(--bg-code-header); padding: 6px 8px 0; border-bottom: 1px solid rgba(255,255,255,.07); }
.code-tabs { display: flex; gap: 2px; overflow-x: auto; scrollbar-width: none; }
.code-tabs::-webkit-scrollbar { display: none; }
.code-tab {
    border: 0; background: transparent; color: #7c93b3; cursor: pointer;
    font-family: var(--font-sans); font-size: 12.5px; font-weight: 600;
    padding: 8px 13px; border-radius: 7px 7px 0 0; white-space: nowrap; transition: color .12s, background .12s;
}
.code-tab:hover { color: #cdd9ea; }
.code-tab.active { color: #fff; background: var(--bg-code); }
.code-panel__label { font-size: 11px; color: #5f7496; }
.code-copy {
    border: 0; background: rgba(255,255,255,.06); color: #9fb2cd; cursor: pointer;
    font-size: 12px; font-weight: 600; padding: 5px 10px; border-radius: 6px; margin: 0 4px 4px;
    display: inline-flex; align-items: center; gap: 5px; transition: background .12s, color .12s;
}
.code-copy:hover { background: rgba(255,255,255,.12); color: #fff; }
.code-copy.copied { background: rgba(18,161,80,.22); color: #4ade80; }
.code-panel__body { margin: 0; }
.code-panel__pane { display: none; }
.code-panel__pane.active { display: block; }
.code-panel pre { margin: 0; padding: 16px 18px; overflow-x: auto; font-family: var(--font-mono); font-size: 13px; line-height: 1.6; }
.code-panel code { font-family: var(--font-mono); background: transparent; border: 0; padding: 0; color: #d6e2f2; }

/* small caption above a code panel */
.code-caption { font-size: 11.5px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--text-faint); margin: 0 0 8px; }

/* inline (non-aside) code block */
.code-block { background: var(--bg-code); border-radius: var(--radius); overflow: hidden; margin: 8px 0 22px; box-shadow: var(--shadow); }
.code-block__head { display: flex; align-items: center; justify-content: space-between; background: var(--bg-code-header); padding: 8px 14px; border-bottom: 1px solid rgba(255,255,255,.07); }
.code-block__lang { font-size: 12px; font-weight: 600; color: #8fa4c2; font-family: var(--font-mono); }
.code-block pre { margin: 0; padding: 16px 18px; overflow-x: auto; }
.code-block code { font-family: var(--font-mono); font-size: 13px; line-height: 1.6; color: #d6e2f2; }

/* ---------- Callouts ---------- */
.callout { display: flex; gap: 12px; border-radius: var(--radius); padding: 14px 16px; margin: 18px 0; font-size: 14px; border: 1px solid; }
.callout i { font-size: 19px; margin-top: 1px; flex: 0 0 auto; }
.callout p { margin: 0; }
.callout--info { background: #eef7fd; border-color: #cfe8f8; color: #0b4a72; }
.callout--info i { color: var(--brand-cyan-600); }
.callout--warn { background: #fff8ec; border-color: #f7e4bd; color: #8a6212; }
.callout--warn i { color: #d9a115; }
.callout--danger { background: #fdecee; border-color: #f6cfd4; color: #9a2b34; }
.callout--danger i { color: #d64550; }
.callout--success { background: #ecfaf1; border-color: #c9efd6; color: #14703c; }
.callout--success i { color: #12a150; }

/* ---------- Badges / pills ---------- */
.pill { display: inline-flex; align-items: center; gap: 5px; font-size: 12px; font-weight: 600; padding: 3px 10px; border-radius: 20px; background: #eef2f7; color: #445; }
.pill--cyan { background: rgba(0,185,228,.13); color: var(--brand-cyan-600); }
.pill--navy { background: rgba(1,37,87,.1); color: var(--brand-navy); }

/* status dot */
.status-list { display: flex; flex-wrap: wrap; gap: 10px; margin: 12px 0 22px; }
.status-chip { display: inline-flex; align-items: center; gap: 7px; font-size: 13px; font-weight: 600; padding: 6px 12px; border-radius: 8px; background: var(--bg-soft); border: 1px solid var(--border); }
.status-chip .dot { width: 8px; height: 8px; border-radius: 50%; }
.dot--green { background: #12a150; } .dot--red { background: #d64550; } .dot--amber { background: #d9a115; } .dot--blue { background: #0a7bd0; } .dot--grey { background: #94a3b8; }

/* on-page TOC (right rail when no code) */
.docs-toc { position: sticky; top: calc(var(--topbar-h) + 24px); font-size: 13.5px; }
.docs-toc__title { font-size: 11.5px; font-weight: 700; letter-spacing: .07em; text-transform: uppercase; color: var(--text-faint); margin-bottom: 10px; }
.docs-toc a { display: block; padding: 4px 0 4px 12px; color: var(--text-muted); border-left: 2px solid var(--border); }
.docs-toc a:hover, .docs-toc a.active { color: var(--brand-navy); border-left-color: var(--brand-cyan); }

/* footer */
.docs-footer { border-top: 1px solid var(--border); padding: 22px 32px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; color: var(--text-faint); font-size: 13px; max-width: 1400px; margin: 0 auto; }

/* page nav prev/next */
.page-nav { display: flex; justify-content: space-between; gap: 16px; margin-top: 48px; padding-top: 24px; border-top: 1px solid var(--border); flex-wrap: wrap; }
.page-nav a { flex: 1 1 240px; border: 1px solid var(--border); border-radius: var(--radius); padding: 14px 18px; transition: border-color .15s, box-shadow .15s; }
.page-nav a:hover { border-color: var(--brand-cyan); box-shadow: var(--shadow-sm); }
.page-nav span { display: block; font-size: 12px; color: var(--text-faint); margin-bottom: 3px; }
.page-nav b { color: var(--brand-navy); font-size: 15px; }
.page-nav .next { text-align: right; }

/* i18n helpers */
[data-lang-tr], [data-lang-en] { }

/* ---------- Responsive ---------- */
@media (max-width: 1200px) {
    .docs-grid { grid-template-columns: minmax(0, 1fr); }
    .docs-aside { position: static; }
    :root { --aside-w: 100%; }
}
@media (max-width: 992px) {
    .docs-sidebar { transform: translateX(-100%); transition: transform .25s ease; box-shadow: var(--shadow-lg); }
    body.sidebar-open .docs-sidebar { transform: translateX(0); }
    .docs-main { margin-left: 0; }
    .mobile-toggle { display: inline-flex; }
    .sidebar-backdrop { display: none; position: fixed; inset: 0; background: rgba(2,20,45,.5); z-index: 55; }
    body.sidebar-open .sidebar-backdrop { display: block; }
}
@media (max-width: 640px) {
    .docs-grid { padding: 24px 18px 60px; }
    .docs-topbar { padding: 0 16px; }
    .docs-hero { padding: 32px 24px; }
    .docs-hero h1 { font-size: 27px; }
}