/* ==========================================================================
   KriptoGo tasarım sistemi — v2 (2026-09)
   Tüm sayfalar (ana sayfa, ödeme, döküman, panel, yönetim) bu dosyayı kullanır.
   Marka rengi logodan alınmıştır: #0051FC
   ========================================================================== */

:root{
  /* Marka */
  --brand:#0051FC; --brand-600:#0043D1; --brand-700:#0036A8;
  --brand-50:#EEF3FF; --brand-100:#DCE6FF; --brand-200:#B9CCFF;

  /* Nötr */
  --bg:#FFFFFF; --surface:#F6F8FB; --surface-2:#EEF1F6;
  --ink:#0B1220; --ink-2:#3B4457; --muted:#66708A; --muted-2:#8A93A8;
  --border:#E3E7EF; --border-2:#CBD2DF;

  /* Durum */
  --ok:#137A45; --ok-bg:#E7F6EC; --ok-bd:#BFE6CC;
  --warn:#9A5B00; --warn-bg:#FFF4E0; --warn-bd:#F5D9A6;
  --err:#B42323; --err-bg:#FDECEC; --err-bd:#F5C2C2;
  --info:#0043D1; --info-bg:#EEF3FF; --info-bd:#C9D8FF;

  /* Kod bloğu (koyu) */
  --code-bg:#0F172A; --code-bg-2:#182236; --code-txt:#DCE3F0; --code-bd:#24314A;
  --code-k:#93C5FD; --code-s:#86EFAC; --code-n:#FCD34D; --code-c:#7C8AA5; --code-p:#C4B5FD;

  /* Ölçüler */
  --r-sm:8px; --r-md:12px; --r-lg:16px; --r-xl:22px;
  --sh-sm:0 1px 2px rgba(11,18,32,.06),0 1px 3px rgba(11,18,32,.04);
  --sh-md:0 6px 20px -8px rgba(11,18,32,.16),0 2px 6px rgba(11,18,32,.05);
  --sh-lg:0 24px 60px -24px rgba(11,18,32,.28),0 8px 20px -10px rgba(11,18,32,.12);
  --ring:0 0 0 3px rgba(0,81,252,.28);
  --maxw:1160px;
  --font:'Inter',system-ui,-apple-system,'Segoe UI',Roboto,Arial,sans-serif;
  --mono:ui-monospace,'JetBrains Mono','Cascadia Code','SF Mono',Menlo,Consolas,monospace;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms!important;transition-duration:.001ms!important}
}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
h1,h2,h3,h4,h5{margin:0;font-weight:700;letter-spacing:-.01em;line-height:1.2;color:var(--ink)}
p{margin:0}
a{color:var(--brand-600);text-decoration:none}
a:hover{text-decoration:underline}
img,svg{display:block;max-width:100%}
button,input,select,textarea{font:inherit;color:inherit}
code,pre,kbd,.mono{font-family:var(--mono)}
:focus-visible{outline:none;box-shadow:var(--ring);border-radius:var(--r-sm)}
::selection{background:var(--brand-100)}
.hidden{display:none!important}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.skip{position:absolute;left:12px;top:-60px;background:var(--ink);color:#fff;padding:10px 14px;border-radius:var(--r-sm);z-index:1000;font-weight:600}
.skip:focus{top:12px}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px}
@media (max-width:640px){.container{padding:0 18px}}

/* ---------------- Logo ---------------- */
.logo{display:inline-flex;align-items:center}
.logo img{height:30px;width:auto}
.logo.sm img{height:24px}

/* ---------------- Düğmeler ---------------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 18px;border-radius:var(--r-md);border:1px solid transparent;font-weight:600;font-size:15px;line-height:1;cursor:pointer;white-space:nowrap;text-decoration:none;transition:background .15s,border-color .15s,color .15s,box-shadow .15s,transform .05s;user-select:none}
.btn:hover{text-decoration:none}
.btn:active{transform:translateY(1px)}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.55;cursor:not-allowed;transform:none}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--sh-sm)}
.btn-primary:hover{background:var(--brand-600)}
.btn-secondary{background:var(--bg);color:var(--ink);border-color:var(--border-2)}
.btn-secondary:hover{background:var(--surface);border-color:var(--muted-2)}
.btn-ghost{background:transparent;color:var(--ink-2)}
.btn-ghost:hover{background:var(--surface)}
.btn-danger{background:var(--err-bg);color:var(--err);border-color:var(--err-bd)}
.btn-danger:hover{background:#FADADA}
.btn-success{background:var(--ok-bg);color:var(--ok);border-color:var(--ok-bd)}
.btn-success:hover{background:#D6F0DF}
.btn-sm{min-height:36px;padding:0 13px;font-size:13.5px;border-radius:var(--r-sm)}
.btn-lg{min-height:52px;padding:0 24px;font-size:16px}
.btn-block{width:100%}
.btn .ico{width:18px;height:18px;flex:none}
.btn-sm .ico{width:16px;height:16px}

/* ---------------- Form ---------------- */
.field{margin-top:16px}
.field:first-child{margin-top:0}
.label{display:block;font-size:13.5px;font-weight:600;color:var(--ink-2);margin-bottom:6px}
.help{font-size:13px;color:var(--muted);margin-top:6px;line-height:1.5}
.input,.select,.textarea{display:block;width:100%;min-height:44px;padding:10px 13px;background:var(--bg);border:1px solid var(--border-2);border-radius:var(--r-md);font-size:15px;color:var(--ink);transition:border-color .15s,box-shadow .15s}
.input::placeholder{color:var(--muted-2)}
.input:hover,.select:hover,.textarea:hover{border-color:var(--muted-2)}
.input:focus,.select:focus,.textarea:focus{outline:none;border-color:var(--brand);box-shadow:var(--ring)}
.input[aria-invalid="true"]{border-color:var(--err)}
.select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='none' stroke='%2366708A' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m4 6 4 4 4-4'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center;padding-right:38px}
.textarea{min-height:120px;resize:vertical;line-height:1.55}
.check{display:flex;align-items:flex-start;gap:10px;font-size:14.5px;color:var(--ink);cursor:pointer}
.check input{width:18px;height:18px;margin:2px 0 0;accent-color:var(--brand);flex:none;cursor:pointer}
.input-group{display:flex;gap:8px}
.input-group .input{flex:1}

/* ---------------- Kart / panel ---------------- */
.card{background:var(--bg);border:1px solid var(--border);border-radius:var(--r-lg);box-shadow:var(--sh-sm)}
.card-pad{padding:24px}
.card-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:16px}
.card-head h3{font-size:16px;font-weight:700}
.card-head .sub{font-size:13.5px;color:var(--muted);margin-top:3px}
@media (max-width:640px){.card-pad{padding:18px}}

/* ---------------- Rozet / durum ---------------- */
.pill{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;font-weight:600;padding:3px 10px;border-radius:999px;line-height:1.5;white-space:nowrap;border:1px solid transparent}
.pill::before{content:'';width:6px;height:6px;border-radius:50%;background:currentColor;flex:none}
.pill-ok,.p-PAID,.p-COMPLETED,.p-APPROVED{background:var(--ok-bg);color:var(--ok);border-color:var(--ok-bd)}
.pill-warn,.p-PENDING{background:var(--warn-bg);color:var(--warn);border-color:var(--warn-bd)}
.pill-err,.p-EXPIRED,.p-REJECTED,.p-FAILED{background:var(--err-bg);color:var(--err);border-color:var(--err-bd)}
.pill-info,.p-PROCESSING,.p-UNDER_REVIEW{background:var(--info-bg);color:var(--info);border-color:var(--info-bd)}
.pill-neutral{background:var(--surface-2);color:var(--ink-2);border-color:var(--border)}
.tag{display:inline-block;font-size:11.5px;font-weight:700;letter-spacing:.04em;text-transform:uppercase;padding:3px 8px;border-radius:6px;background:var(--surface-2);color:var(--ink-2)}
.tag-brand{background:var(--brand-50);color:var(--brand-600)}
.tag-req{background:var(--err-bg);color:var(--err)}
.tag-opt{background:var(--surface-2);color:var(--muted)}

/* ---------------- Bildirim kutusu ---------------- */
.notice{display:flex;gap:12px;align-items:flex-start;padding:14px 16px;border-radius:var(--r-md);border:1px solid;font-size:14.5px;line-height:1.55}
.notice .ico{width:20px;height:20px;flex:none;margin-top:1px}
.notice b{display:block;font-weight:600;margin-bottom:2px}
.notice a{font-weight:600}
.n-info{background:var(--info-bg);border-color:var(--info-bd);color:#1E3A8A}
.n-info .ico{color:var(--info)}
.n-ok{background:var(--ok-bg);border-color:var(--ok-bd);color:#14532D}
.n-ok .ico{color:var(--ok)}
.n-warn{background:var(--warn-bg);border-color:var(--warn-bd);color:#7C2D12}
.n-warn .ico{color:var(--warn)}
.n-err{background:var(--err-bg);border-color:var(--err-bd);color:#7F1D1D}
.n-err .ico{color:var(--err)}

/* Sonuç mesajı (form sonrası) */
.result{margin-top:14px;font-size:14px;padding:11px 14px;border-radius:var(--r-sm);border:1px solid}
.result.ok{background:var(--ok-bg);border-color:var(--ok-bd);color:var(--ok)}
.result.err{background:var(--err-bg);border-color:var(--err-bd);color:var(--err)}

/* ---------------- Tablo ---------------- */
.table-wrap{overflow-x:auto;border:1px solid var(--border);border-radius:var(--r-md);background:var(--bg)}
table{width:100%;border-collapse:collapse;min-width:560px}
th{text-align:left;font-size:12px;font-weight:600;letter-spacing:.04em;text-transform:uppercase;color:var(--muted);padding:11px 14px;background:var(--surface);border-bottom:1px solid var(--border);white-space:nowrap}
td{padding:12px 14px;font-size:14px;border-bottom:1px solid var(--border);vertical-align:middle;color:var(--ink)}
tbody tr:last-child td{border-bottom:none}
tbody tr:hover td{background:var(--surface)}
td.num,th.num{text-align:right;font-variant-numeric:tabular-nums}
.empty{text-align:center;color:var(--muted);padding:40px 20px;font-size:14.5px}
.empty b{display:block;color:var(--ink);font-weight:600;margin-bottom:4px}
.empty .ico{width:36px;height:36px;margin:0 auto 10px;color:var(--muted-2)}

/* ---------------- Anahtar/değer ---------------- */
.kv{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:11px 0;border-bottom:1px solid var(--border);font-size:14px}
.kv:last-child{border-bottom:none}
.kv .k{color:var(--muted);flex:none}
.kv .v{font-weight:500;text-align:right;word-break:break-all;color:var(--ink)}

/* ---------------- Kopyalanabilir alan ---------------- */
.copybox{display:flex;align-items:center;gap:10px;background:var(--surface);border:1px solid var(--border);border-radius:var(--r-md);padding:8px 8px 8px 13px}
.copybox code{flex:1;font-size:13px;word-break:break-all;color:var(--ink);line-height:1.5}
.copybox.masked code{letter-spacing:.12em}
.copy{display:inline-flex;align-items:center;gap:6px;min-height:34px;padding:0 12px;border-radius:var(--r-sm);border:1px solid var(--border-2);background:var(--bg);color:var(--ink-2);font-size:13px;font-weight:600;cursor:pointer;white-space:nowrap;transition:.15s}
.copy:hover{border-color:var(--muted-2);color:var(--ink)}
.copy.done{background:var(--ok-bg);border-color:var(--ok-bd);color:var(--ok)}
.copy .ico{width:15px;height:15px}

/* ---------------- Kod bloğu ---------------- */
.codewrap{position:relative;border:1px solid var(--code-bd);border-radius:var(--r-md);overflow:hidden;background:var(--code-bg);color:var(--code-txt);text-align:left}
.codehead{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:8px 10px 8px 14px;background:var(--code-bg-2);border-bottom:1px solid var(--code-bd)}
.codehead .lbl{font-size:12.5px;color:#A5B0C6;font-family:var(--mono)}
.codewrap pre{margin:0;padding:16px 18px;overflow-x:auto;font-size:13.2px;line-height:1.7;tab-size:2;color:var(--code-txt)}
.codewrap .copy{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.14);color:#C9D2E3}
.codewrap .copy:hover{background:rgba(255,255,255,.12);color:#fff}
.codewrap .copy.done{background:rgba(134,239,172,.16);border-color:rgba(134,239,172,.4);color:#86EFAC}
.tabs{display:flex;gap:2px;flex-wrap:wrap}
.tabs button{background:none;border:none;color:#A5B0C6;font-size:12.5px;font-weight:600;padding:6px 11px;border-radius:7px;cursor:pointer;transition:.15s}
.tabs button:hover{color:#fff}
.tabs button.on,.tabs button[aria-selected="true"]{background:rgba(255,255,255,.1);color:#fff}
pre .k{color:var(--code-k)}pre .s{color:var(--code-s)}pre .n{color:var(--code-n)}pre .c{color:var(--code-c)}pre .p{color:var(--code-p)}
code.inline,p code,li code,td code{background:var(--surface-2);border:1px solid var(--border);border-radius:5px;padding:1px 6px;font-size:.88em;color:var(--brand-700);white-space:nowrap}

/* ---------------- Yükleniyor ---------------- */
.spin{width:24px;height:24px;border:3px solid var(--border);border-top-color:var(--brand);border-radius:50%;animation:sp .8s linear infinite;margin:28px auto}
@keyframes sp{to{transform:rotate(360deg)}}
.skeleton{background:linear-gradient(90deg,var(--surface) 25%,var(--surface-2) 50%,var(--surface) 75%);background-size:200% 100%;animation:sk 1.2s infinite;border-radius:6px;color:transparent!important}
@keyframes sk{to{background-position:-200% 0}}

/* ---------------- Site başlığı (ana sayfa / döküman) ---------------- */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.86);backdrop-filter:saturate(180%) blur(12px);-webkit-backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid var(--border)}
.site-nav{height:68px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.site-links{display:flex;align-items:center;gap:4px;list-style:none;margin:0;padding:0}
.site-links a{display:inline-flex;align-items:center;min-height:40px;padding:0 12px;border-radius:var(--r-sm);color:var(--ink-2);font-size:14.5px;font-weight:500}
.site-links a:hover{background:var(--surface);color:var(--ink);text-decoration:none}
.site-links a.on{color:var(--brand-600);background:var(--brand-50)}
.site-cta{display:flex;align-items:center;gap:8px}
.menu-btn{display:none;align-items:center;justify-content:center;width:44px;height:44px;border-radius:var(--r-sm);border:1px solid var(--border-2);background:var(--bg);color:var(--ink);cursor:pointer}
.menu-btn svg{width:22px;height:22px}
.mobile-menu{display:none;border-top:1px solid var(--border);background:var(--bg);padding:10px 24px 18px}
.mobile-menu a{display:flex;align-items:center;min-height:46px;padding:0 10px;border-radius:var(--r-sm);color:var(--ink);font-weight:500;font-size:16px}
.mobile-menu a:hover{background:var(--surface);text-decoration:none}
.mobile-menu .row{display:flex;gap:10px;margin-top:12px;padding-top:12px;border-top:1px solid var(--border)}
.mobile-menu .row .btn{flex:1}
.site-header[data-open="true"] .mobile-menu{display:block}
@media (max-width:900px){
  .site-links{display:none}
  .site-cta .btn-ghost{display:none}
  .menu-btn{display:inline-flex}
}

/* ---------------- Alt bilgi ---------------- */
.site-footer{border-top:1px solid var(--border);background:var(--surface);padding:56px 0 32px;color:var(--muted);font-size:14px}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px}
.foot-grid h4{font-size:13px;font-weight:700;letter-spacing:.05em;text-transform:uppercase;color:var(--ink-2);margin-bottom:14px}
.foot-grid ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:9px}
.foot-grid a{color:var(--muted)}
.foot-grid a:hover{color:var(--ink)}
.foot-about p{margin-top:14px;max-width:340px;line-height:1.6}
.foot-disc{font-size:12.5px;color:var(--muted-2);margin-top:12px;max-width:360px;line-height:1.55}
.foot-bot{margin-top:40px;padding-top:20px;border-top:1px solid var(--border);display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:13px;color:var(--muted-2)}
@media (max-width:900px){.foot-grid{grid-template-columns:1fr 1fr}}
@media (max-width:520px){.foot-grid{grid-template-columns:1fr}}

/* ---------------- Yardımcı ---------------- */
.stack>*+*{margin-top:12px}
.row{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.grow{flex:1}
.mt-1{margin-top:8px}.mt-2{margin-top:16px}.mt-3{margin-top:24px}.mt-4{margin-top:32px}
.muted{color:var(--muted)}
.small{font-size:13px}
.tabular{font-variant-numeric:tabular-nums}
.divider{height:1px;background:var(--border);margin:20px 0}

/* ---------------- Makale / blog ---------------- */
.article{max-width:760px;margin:0 auto;padding:48px 24px 80px}
.article .kicker{display:inline-block;font-size:12.5px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--brand-600);margin-bottom:12px}
.article h1{font-size:clamp(30px,4.2vw,42px);font-weight:800;letter-spacing:-.03em;line-height:1.15}
.article .meta{display:flex;gap:14px;flex-wrap:wrap;color:var(--muted);font-size:14px;margin-top:14px}
.article .lede{font-size:18.5px;color:var(--ink-2);line-height:1.6;margin-top:18px}
.prose{margin-top:32px;font-size:17px;line-height:1.75;color:var(--ink-2)}
.prose h2{font-size:26px;font-weight:800;letter-spacing:-.02em;margin:48px 0 14px;color:var(--ink);scroll-margin-top:90px}
.prose h3{font-size:19px;font-weight:700;margin:30px 0 10px;color:var(--ink)}
.prose p{margin:0 0 16px}
.prose ul,.prose ol{margin:0 0 18px 24px;padding:0}
.prose li{margin-bottom:8px}
.prose li::marker{color:var(--brand)}
.prose strong{color:var(--ink);font-weight:600}
.prose a{font-weight:600}
.prose .codewrap{margin:18px 0 22px}
.prose .notice{margin:20px 0}
.prose table{min-width:0}
.prose .table-wrap{margin:18px 0 22px}
.prose blockquote{margin:22px 0;padding:14px 20px;border-left:3px solid var(--brand);background:var(--brand-50);border-radius:0 var(--r-md) var(--r-md) 0;color:var(--ink)}
.prose .faq details{margin-bottom:10px}
.toc-box{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-md);padding:18px 22px;margin:28px 0 0;font-size:15px}
.toc-box b{display:block;font-size:13px;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);margin-bottom:10px}
.toc-box ol{margin:0 0 0 20px;padding:0;display:grid;gap:6px}
.cta-inline{background:var(--ink);color:#fff;border-radius:var(--r-lg);padding:28px;margin:44px 0 0;display:flex;gap:18px;align-items:center;justify-content:space-between;flex-wrap:wrap}
.cta-inline h3{color:#fff;margin:0 0 4px;font-size:18px}
.cta-inline p{color:#B6C0D4;margin:0;font-size:15px}
.cta-inline .btn{background:#fff;color:var(--ink);flex:none}
.related{max-width:760px;margin:0 auto;padding:0 24px 72px}
.related h2{font-size:20px;font-weight:700;margin-bottom:16px}
.card-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.post-card{display:block;background:var(--bg);border:1px solid var(--border);border-radius:var(--r-lg);padding:20px;color:var(--ink);text-decoration:none;transition:border-color .15s,box-shadow .15s}
.post-card:hover{border-color:var(--border-2);box-shadow:var(--sh-md);text-decoration:none}
.post-card .tag{margin-bottom:10px}
.post-card h3{font-size:16.5px;font-weight:700;line-height:1.35}
.post-card p{color:var(--muted);font-size:14px;margin-top:8px;line-height:1.55}
.post-card .more{display:inline-block;margin-top:12px;color:var(--brand-600);font-weight:600;font-size:14px}
.blog-head{max-width:760px;margin:0 auto;padding:56px 24px 28px}
.blog-head h1{font-size:clamp(30px,4vw,40px);font-weight:800;letter-spacing:-.03em}
.blog-head p{color:var(--ink-2);font-size:17px;margin-top:12px;max-width:60ch}
.blog-list{max-width:760px;margin:0 auto;padding:0 24px 80px}
.blog-list .card-list{grid-template-columns:1fr}
.breadcrumb{font-size:13.5px;color:var(--muted);margin-bottom:18px}
.breadcrumb a{color:var(--muted)}
.breadcrumb span{margin:0 6px}
@media (max-width:640px){.article{padding:32px 18px 60px}.card-list{grid-template-columns:1fr}.prose{font-size:16.5px}}