:root {
  --bg: #0b0f17;
  --surface: #111827;
  --surface-2: #0f1626;
  --surface-3: #1a2333;
  --text: #e5e9f0;
  --muted: #94a3b8;
  --accent: #22d3ee;
  --accent-soft: rgba(34, 211, 238, .12);
  --accent-2: #34d399;
  --danger: #f87171;
  --warn: #facc15;
  --ok: #34d399;
  --border: #1f2937;
  --border-strong: #2b3648;
  --radius: 12px;
  --radius-sm: 10px;
  --shadow: 0 8px 30px rgba(0, 0, 0, .35);
  --font-mono: ui-monospace, "Cascadia Code", "SF Mono", Consolas, Menlo, monospace;
  --header-h: 58px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 12px); -webkit-text-size-adjust: 100%; }
html, body { margin: 0; padding: 0; }
body {
  background:
    radial-gradient(1200px 500px at 80% -10%, rgba(34, 211, 238, .07), transparent 60%),
    radial-gradient(900px 400px at 0% 110%, rgba(52, 211, 153, .05), transparent 60%),
    var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.6;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
}
.container { width: min(1120px, 100% - 2.5rem); margin-inline: auto; }
main.container { flex: 1; padding: 34px 0 72px; }
a { color: var(--accent); text-decoration: none; transition: color .15s ease; }
a:hover { color: #67e8f9; }
h1, h2, h3 { line-height: 1.25; letter-spacing: -.01em; }
h1 { font-size: clamp(1.75rem, 4.5vw, 2.6rem); margin: 0 0 14px; font-weight: 800; }
h2 { font-size: clamp(1.15rem, 2.5vw, 1.3rem); margin: 0 0 10px; font-weight: 700; }
h3 { font-size: 1rem; margin: 0 0 8px; }
p { margin: 8px 0; }
.muted { color: var(--muted); }
.mono { font-family: var(--font-mono); }
img, svg { max-width: 100%; }

/* ---------- Header / nav ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  border-bottom: 1px solid var(--border);
  background: rgba(17, 24, 39, .88);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.nav { display: flex; align-items: center; gap: 18px; min-height: var(--header-h); padding-block: 8px; flex-wrap: nowrap; }
.brand { font-weight: 800; font-size: 1.22rem; color: var(--text); letter-spacing: -.02em; white-space: nowrap; }
.brand span { color: var(--accent); }
.brand:hover { color: var(--text); }

.nav-toggle-input { position: absolute; opacity: 0; pointer-events: none; }
.nav-toggle { display: none; margin-left: auto; width: 44px; height: 44px; border-radius: 10px; cursor: pointer;
  border: 1px solid var(--border-strong); align-items: center; justify-content: center; flex-direction: column; gap: 5px; }
.nav-toggle span { display: block; width: 20px; height: 2px; border-radius: 2px; background: var(--text); transition: transform .2s ease, opacity .2s ease; }
.nav-toggle-input:checked ~ .nav-toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle-input:checked ~ .nav-toggle span:nth-child(2) { opacity: 0; }
.nav-toggle-input:checked ~ .nav-toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.nav-toggle-input:focus-visible ~ .nav-toggle { outline: 2px solid var(--accent); outline-offset: 2px; }

.nav-panel { display: flex; align-items: center; gap: 12px; flex: 1; }
.nav-links { display: flex; gap: 4px; align-items: center; flex-wrap: wrap; }
.nav-links a {
  color: var(--muted); padding: 8px 13px; border-radius: 8px; font-weight: 600; font-size: .93rem;
  white-space: nowrap;
}
.nav-links a:hover { color: var(--text); background: var(--surface-3); }
.nav-links a[aria-current="page"] { color: var(--accent); background: var(--accent-soft); }
.nav-admin { display: inline-flex; align-items: center; gap: 6px; color: var(--accent-2) !important; }
.nav-admin:hover { background: rgba(52, 211, 153, .12) !important; }
.nav-auth { margin-left: auto; display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.nav-auth .inline-form { display: inline-flex; margin: 0; }
.nav-user { color: var(--muted); font-size: .88rem; max-width: 200px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  border-radius: var(--radius-sm); padding: 10px 18px; font-weight: 700; font-size: .95rem;
  border: 1px solid transparent; cursor: pointer; font-family: inherit; line-height: 1.4;
  transition: transform .12s ease, filter .15s ease, background .15s ease, border-color .15s ease;
  text-align: center;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--accent); color: #04222b; box-shadow: 0 2px 14px rgba(34, 211, 238, .25); }
.btn-primary:hover { filter: brightness(1.12); color: #04222b; }
.btn-outline { border-color: var(--border-strong); color: var(--text); background: transparent; }
.btn-outline:hover { border-color: var(--accent); color: var(--accent); }
.btn-ghost { color: var(--muted); background: transparent; }
.btn-ghost:hover { color: var(--text); }
.btn-danger { background: transparent; border-color: rgba(248, 113, 113, .5); color: var(--danger); }
.btn-danger:hover { background: rgba(248, 113, 113, .1); border-color: var(--danger); }
.btn-sm { padding: 8px 15px; font-size: .9rem; }
.btn:disabled { opacity: .45; cursor: not-allowed; transform: none; box-shadow: none; }
.btn:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible, .nav-toggle:focus-visible {
  outline: 2px solid var(--accent); outline-offset: 2px;
}

/* ---------- Cards & grids ---------- */
.card {
  background: linear-gradient(180deg, rgba(255, 255, 255, .015), transparent 40%), var(--surface);
  border: 1px solid var(--border); border-radius: var(--radius);
  padding: 24px; margin-bottom: 20px;
  transition: border-color .2s ease;
}
.card:hover { border-color: var(--border-strong); }
.card h2:first-child { margin-top: 0; }
.card-tight { padding: 18px 20px; }
.grid { display: grid; gap: 18px; }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.split { display: grid; grid-template-columns: 1.1fr .9fr; gap: 26px; align-items: start; }

.icon-chip {
  width: 42px; height: 42px; border-radius: 11px; display: inline-flex;
  align-items: center; justify-content: center; background: var(--accent-soft); color: var(--accent);
  margin-bottom: 12px;
}
.icon-chip.green { background: rgba(52, 211, 153, .12); color: var(--accent-2); }
.icon-chip svg { display: block; }

/* ---------- Hero ---------- */
.hero { padding: 44px 0 24px; }
.hero .pill {
  display: inline-flex; align-items: center; gap: 8px; flex-wrap: wrap;
  background: var(--accent-soft); color: var(--accent);
  border: 1px solid rgba(34, 211, 238, .25);
  border-radius: 999px; padding: 5px 14px; font-size: .82rem; font-weight: 600; margin-bottom: 18px;
}
.hero h1 .grad {
  background: linear-gradient(92deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero p.lead { color: var(--muted); font-size: clamp(1rem, 2.2vw, 1.13rem); max-width: 640px; }
.hero-cta { display: flex; gap: 12px; margin-top: 22px; flex-wrap: wrap; }
.hero-visual { border: 1px solid var(--border); border-radius: 16px; background: var(--surface-2); padding: 22px; box-shadow: var(--shadow); }
.hero-visual .row { display: flex; justify-content: space-between; gap: 10px; padding: 9px 0; border-bottom: 1px dashed var(--border); font-size: .92rem; flex-wrap: wrap; }
.hero-visual .row:last-child { border-bottom: 0; }
.hero-visual .row .k { color: var(--muted); }
.hero-visual .row .v { font-family: var(--font-mono); text-align: right; }
.hero-visual .amount { font-family: var(--font-mono); font-size: clamp(1.2rem, 3.5vw, 1.5rem); font-weight: 700; color: var(--accent); }
.live-dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: var(--ok); margin-right: 7px; animation: pulse 2s infinite; }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: .35; } }

.trust-strip { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 26px; }
.trust-strip span {
  border: 1px solid var(--border); background: var(--surface); color: var(--muted);
  border-radius: 999px; padding: 6px 14px; font-size: .84rem;
}

/* ---------- Tables ---------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); -webkit-overflow-scrolling: touch; }
table.table { width: 100%; border-collapse: collapse; font-size: .95rem; min-width: 560px; }
.table th, .table td { text-align: left; padding: 12px 16px; border-bottom: 1px solid var(--border); }
.table th { color: var(--muted); font-weight: 600; font-size: .8rem; text-transform: uppercase; letter-spacing: .05em; background: var(--surface-2); white-space: nowrap; }
.table tr:last-child td { border-bottom: 0; }
.table tbody tr:hover td { background: rgba(34, 211, 238, .04); }
.price { font-family: var(--font-mono); font-weight: 700; color: var(--accent); white-space: nowrap; }
.stock { font-size: .8rem; padding: 3px 10px; border-radius: 999px; background: rgba(52, 211, 153, .12); color: var(--accent-2); white-space: nowrap; }
.stock.low { background: rgba(250, 204, 21, .12); color: var(--warn); }
.stock.out { background: rgba(148, 163, 184, .12); color: var(--muted); }

/* ---------- Status ---------- */
.status { padding: 3px 11px; border-radius: 999px; font-size: .78rem; font-weight: 700; white-space: nowrap; }
.status-waiting { background: rgba(250, 204, 21, .13); color: var(--warn); }
.status-received { background: rgba(52, 211, 153, .14); color: var(--ok); }
.status-cancelled, .status-expired { background: rgba(148, 163, 184, .13); color: var(--muted); }

/* ---------- Alerts ---------- */
.alert { border-radius: var(--radius-sm); padding: 13px 16px; margin: 14px 0; border: 1px solid; font-size: .95rem; }
.alert-success { border-color: rgba(52, 211, 153, .5); color: var(--ok); background: rgba(52, 211, 153, .08); }
.alert-error, .alert-danger { border-color: rgba(248, 113, 113, .5); color: var(--danger); background: rgba(248, 113, 113, .08); }
.alert-info, .alert-warning { border-color: rgba(250, 204, 21, .45); color: var(--warn); background: rgba(250, 204, 21, .07); }

/* ---------- Forms ---------- */
form label { display: block; margin: 14px 0 6px; font-weight: 600; font-size: .93rem; }
input[type=text], input[type=email], input[type=password], input[type=number], select, textarea {
  width: 100%; background: var(--surface-2); border: 1px solid var(--border-strong); color: var(--text);
  border-radius: var(--radius-sm); padding: 12px 13px; font-size: 16px; font-family: inherit; min-height: 46px;
  transition: border-color .15s ease, box-shadow .15s ease;
}
input:hover, select:hover { border-color: #3d4a63; }
input:focus, select:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(34, 211, 238, .15); outline: none; }
.form-help, .helptext { color: var(--muted); font-size: .84rem; margin-top: 4px; }
.errorlist { color: var(--danger); list-style: none; padding: 0; margin: 6px 0; font-size: .9rem; }
.visually-hidden { position: absolute !important; left: -9999px !important; width: 1px; height: 1px; overflow: hidden; }

/* ---------- Wallet / deposit ---------- */
.wallet-balance { font-size: clamp(1.9rem, 5vw, 2.4rem); font-weight: 800; font-family: var(--font-mono); color: var(--accent); }
.wallet-balance small { font-size: 1.1rem; color: var(--muted); font-weight: 600; }
.amount-display {
  font-size: clamp(1.5rem, 6.5vw, 2.5rem); font-weight: 800; color: var(--accent); font-family: var(--font-mono);
  background: var(--surface-2); border: 1px dashed var(--border-strong); padding: 16px 22px;
  border-radius: var(--radius); display: inline-block; margin: 8px 0;
}
.qr-wrap { background: #fff; display: inline-block; padding: 14px; border-radius: 16px; box-shadow: var(--shadow); }
.qr-wrap img { display: block; }
.copy-row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; margin: 10px 0; }
.copy-row code {
  background: var(--surface-2); border: 1px solid var(--border-strong); padding: 8px 12px;
  border-radius: 8px; font-family: var(--font-mono); font-size: .92rem; word-break: break-all;
}
.callout {
  border: 1px solid rgba(250, 204, 21, .4); background: rgba(250, 204, 21, .06);
  border-radius: var(--radius-sm); padding: 12px 16px; margin: 14px 0; color: var(--warn); font-size: .93rem;
}
.code-box {
  font-size: clamp(1.3rem, 7vw, 2.2rem); letter-spacing: .3em; font-family: var(--font-mono); font-weight: 700;
  background: var(--surface-2); border: 1px solid var(--border-strong); padding: 16px 20px;
  border-radius: var(--radius); display: inline-block; margin: 8px 0; color: var(--accent);
  max-width: 100%; overflow-x: auto;
}

/* ---------- Steps ---------- */
.steps { list-style: none; padding: 0; margin: 16px 0; counter-reset: step; }
.steps li { padding: 8px 0 8px 38px; color: var(--muted); position: relative; }
.steps li::before {
  content: counter(step); counter-increment: step;
  position: absolute; left: 0; top: 9px; width: 25px; height: 25px; border-radius: 50%;
  background: var(--surface-3); color: var(--muted); font-size: .78rem; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
}
.steps li.active { color: var(--text); }
.steps li.active::before { background: var(--accent); color: #04222b; }
.steps li.done { color: var(--ok); }
.steps li.done::before { content: "✓"; background: rgba(52, 211, 153, .15); color: var(--ok); }

/* ---------- Orders ---------- */
.order-card {
  display: flex; gap: 14px; align-items: center; justify-content: space-between; flex-wrap: wrap;
  border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 15px 17px; margin-bottom: 12px;
  background: var(--surface-2); transition: border-color .15s ease;
}
.order-card:hover { border-color: var(--border-strong); }
.order-meta { color: var(--muted); font-size: .88rem; }
.countdown-chip {
  font-family: var(--font-mono); background: var(--surface-3); border: 1px solid var(--border-strong);
  border-radius: 8px; padding: 3px 9px; font-size: .84rem;
}
.devices li { margin: 8px 0; }
.warn { color: var(--danger); font-weight: 700; }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--border); padding: 34px 0 22px; color: var(--muted); font-size: .9rem; background: rgba(17, 24, 39, .5); }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 28px; }
.footer-brand { font-size: 1.1rem; margin-top: 0; }
.footer-grid h3 { color: var(--text); font-size: .85rem; text-transform: uppercase; letter-spacing: .07em; }
.footer-grid ul { list-style: none; margin: 0; padding: 0; }
.footer-grid li { margin: 7px 0; }
.footer-grid a { color: var(--muted); }
.footer-grid a:hover { color: var(--accent); }
.footer-bottom {
  display: flex; justify-content: space-between; gap: 10px; flex-wrap: wrap;
  border-top: 1px solid var(--border); margin-top: 26px; padding-top: 16px; font-size: .84rem;
}

/* ---------- Misc ---------- */
.section { margin: 40px 0; }
.section-head { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-bottom: 6px; }
.page-head { margin-bottom: 22px; }
.page-head p { color: var(--muted); max-width: 680px; }
.balance-row { display: flex; align-items: center; justify-content: space-between; gap: 14px; flex-wrap: wrap; }

/* ---------- Desktop hover polish ---------- */
@media (hover: hover) and (pointer: fine) {
  .card { transition: border-color .2s ease, transform .2s ease; }
  .card:hover { transform: translateY(-2px); }
  .btn-outline:hover, .btn-primary:hover { transform: translateY(-1px); }
}

/* ---------- Tablet ---------- */
@media (max-width: 1023px) {
  .split { grid-template-columns: 1fr 1fr; }
}

/* ---------- Mobil ---------- */
@media (max-width: 767px) {
  :root { --header-h: 54px; }
  .container { width: min(1120px, 100% - 2rem); }
  main.container { padding: 24px 0 56px; }

  /* Hamburger menü */
  .nav { gap: 12px; }
  .nav-toggle { display: inline-flex; }
  .nav-panel {
    display: none; position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--surface); border-bottom: 1px solid var(--border);
    padding: 10px 1rem 16px; box-shadow: var(--shadow);
    max-height: calc(100dvh - 100%); overflow-y: auto;
  }
  .nav-toggle-input:checked ~ .nav-panel { display: flex; }
  .nav-links { flex-direction: column; align-items: stretch; gap: 2px; }
  .nav-links a { padding: 13px 14px; font-size: 1rem; border-radius: 10px; }
  .nav-admin { margin-top: 4px; }
  .nav-auth {
    margin-left: 0; margin-top: 10px; padding-top: 14px; border-top: 1px solid var(--border);
    flex-direction: column; align-items: stretch;
  }
  .nav-auth .btn { width: 100%; }
  .nav-auth .inline-form { display: flex; width: 100%; }
  .nav-user { text-align: center; max-width: none; padding-bottom: 4px; }

  .hero { padding: 28px 0 12px; }
  .split { grid-template-columns: 1fr; gap: 18px; }
  .hero-cta .btn { flex: 1 1 auto; }
  .card { padding: 18px 16px; }
  .card-tight { padding: 16px; }
  .section { margin: 30px 0; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }

  .order-card { align-items: flex-start; flex-direction: column; }
  .order-card .copy-row { width: 100%; }
  .order-card .copy-row .btn { flex: 1; }

  .table th, .table td { padding: 11px 12px; }
  .copy-row code { flex: 1 1 100%; }
  .steps li { padding-left: 34px; }
  .balance-row { flex-direction: column; align-items: stretch; text-align: center; }
  .balance-row .btn { width: 100%; }
}

@media (max-width: 379px) {
  .footer-grid { grid-template-columns: 1fr; }
  .brand { font-size: 1.08rem; }
}

/* ---------- Safe area (çentikli ekranlar) ---------- */
@media (min-width: 768px) {
  .container { width: min(1120px, 100% - 3rem); }
}
@supports (padding: max(0px)) {
  .container {
    padding-left: max(0px, env(safe-area-inset-left));
    padding-right: max(0px, env(safe-area-inset-right));
  }
  .site-footer { padding-bottom: max(22px, env(safe-area-inset-bottom)); }
}

/* ---------- Hareket azaltma ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .live-dot { animation: none; }
  .btn, .card, .nav-toggle span { transition: none; }
}

/* ---------- SEO: breadcrumb + FAQ list + checks ---------- */
.breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 0.86rem; margin: 4px 0 14px; color: var(--muted); flex-wrap: wrap; }
.breadcrumb a { color: var(--muted); text-decoration: none; }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb span[aria-hidden] { opacity: 0.5; }
.faq-list { display: grid; gap: 12px; }
.faq-list h2, .faq-list h3 { font-size: 1.02rem; margin-bottom: 6px; }
ul.checks { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
ul.checks li { padding-left: 28px; position: relative; }
ul.checks li::before { content: ""; position: absolute; left: 0; top: 4px; width: 16px; height: 16px; border-radius: 50%; background: color-mix(in srgb, var(--ok) 18%, transparent); border: 1.5px solid var(--ok); }
ul.checks li::after { content: ""; position: absolute; left: 4.5px; top: 9px; width: 7px; height: 4px; border-left: 2px solid var(--ok); border-bottom: 2px solid var(--ok); transform: rotate(-45deg); }