:root{
  --bg:#0b1220;
  --card:#121b2f;
  --text:#e7eefc;
  --muted:#a9b6d3;
  --border:rgba(255,255,255,.10);
  --shadow: 0 10px 30px rgba(0,0,0,.25);
  --ok:#0f5132;
  --warn:#7a4a00;
  --bad:#7a0f0f;
  --ok-bg: rgba(16, 185, 129, .14);
  --warn-bg: rgba(245, 158, 11, .16);
  --bad-bg: rgba(239, 68, 68, .16);
  --ring: rgba(99, 102, 241, .55);
  --accent:#6366f1;
  --accent-2:#22c55e;
}

/* Base */
*{ box-sizing:border-box; border-radius:0 !important; }
html,body{ height:100%; }

body{
  margin:24px auto;
  max-width:1060px;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  line-height:1.5;
  padding: 0 16px;

  color: #000;
  background: #444444;
  font-size:16px;
}

body, .ui-panel, .ui-section, .responsive-accordion, .acc-tabs, .acc-tab, .acc-panel,
label, button, input, select, code, .ui-hint, .ui-small, .ui-title, .crypto-code, .ui-mono{
  font-size:16px !important;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif !important;
}

/* Panels / Sections */
.ui-panel{
  margin: 20px 0;
  background: #fff;
  border:1px solid #000;
  border-radius:0 !important;
  padding:18px 18px 14px;
  box-shadow: none;
  overflow:hidden;
}

.ui-section{
  border:1px solid #000;
  background: #fff;
  border-radius:0 !important;
  padding:14px;
}

.ui-head{
  display:flex;
  gap:14px;
  align-items:flex-start;
  justify-content:space-between;
  padding-bottom:10px;
  border-bottom:1px solid #000;
  margin-bottom:14px;
  flex-wrap:wrap;
}

.ui-title{
  font-size:1.15rem;
  margin:0 0 6px 0;
  letter-spacing:.2px;
  color:#000;
}
.ui-small{ color:#000; font-size:.93rem; margin:0; }

.ui-section h3{
  margin:0 0 10px 0;
  font-size:1rem;
  color:#000;
}

/* Layout */
.ui-grid{ display:grid; gap:14px; grid-template-columns: 1fr; }
@media (min-width: 860px){
  .ui-grid.two{ grid-template-columns: 1fr 1fr; align-items:start; }
}

.ui-row{
  display:flex;
  gap:12px;
  flex-wrap:wrap;
  align-items:center;
  margin:10px 0 0;
}
.ui-row-top-14{ margin-top:14px; }
.ui-row-tight-12{ margin-top:12px; }

.ui-field{
  display:flex;
  flex-direction:column;
  gap:6px;
  min-width: 160px;
  flex:1 1 220px;
}
.ui-field-fit-260{ flex:1 1 260px; min-width:0; }
.ui-field-fit-240{ flex:1 1 240px; min-width:0; }

/* Form */
label{ font-weight:600; font-size:.95rem; color:#000; }

input[type="number"],
input[type="password"],
select,
button{
  font-size:16px;
  padding:10px 12px;
  border-radius:0 !important;
  border:1px solid #000;
  background: #fff;
  color:#000;
  outline:none;
  width:100%;
}

input[type="number"]{ width: 100%; max-width: 140px; }
@media (min-width: 520px){
  input[type="number"]{ max-width: 120px; }
}

select{ width:100%; }

input:focus,
select:focus{
  border-color: #000;
  box-shadow: none;
}

.ui-checkrow{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  align-items:center;
  margin-top:8px;
}

.ui-pill{
  display:inline-flex;
  gap:8px;
  align-items:center;
  padding:8px 10px;
  border-radius:0 !important;
  border:1px solid #000;
  background: #fff;
  user-select:none;
  cursor:pointer;
}

input[type="checkbox"]{ width: 16px; height:16px; }

.ui-actions{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  margin-top:12px;
}

button{
  cursor:pointer;
  transition: none;
  background: #fff;
  font-weight:650;
  width:auto;
  min-width: 140px;
}

@media (max-width: 520px){
  body{ margin:16px auto; padding: 0 12px; }
  .ui-panel{ padding:14px 14px 12px; border-radius:0 !important; }
  .ui-section{ padding:12px; border-radius:0 !important; }
  label{ font-size:.92rem; }
  .ui-field{ min-width: 0; }
  button{ width:100%; min-width:0; }

  input[type="number"],
  input[type="password"],
  select{
    font-size:16px;
    padding:10px 12px;
  }
}

button:active{ transform: none; }

.ui-primary{ border-color:#000; background:#fff; }
.ui-ghost{ background:#fff; }
.ui-copy{ background:#fff; border-color:#000; }

code{
  display:block;
  max-width:100%;
  background: #fff;
  border:1px solid #000;
  padding:10px 12px;
  border-radius:0 !important;
  word-break:break-all;
  color: #000;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  font-size:16px;
  margin-top:8px;
}

.ui-hint{ color:#000; font-size:.93rem; margin-top:10px; }

/* Result */
#ui-result{
  margin-top:14px;
  border-radius:0 !important;
  padding:14px;
  border:1px solid #000;
  background: #fff;
}

/* Utility */
.ui-ok, .ui-warn, .ui-bad{
  background: #fff !important;
  border-color: #000 !important;
}

.ui-mono{
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  font-size:16px;
}

.visually-hidden{
  position:absolute;
  width:1px;height:1px;
  padding:0;margin:-1px;
  overflow:hidden;clip:rect(0,0,0,0);
  border:0;
}

/* Accordion */
.responsive-accordion{ max-width: 100%; }

.responsive-accordion .acc-tabs{
  display: flex;
  flex-wrap: nowrap;
  gap: 10px;
  justify-content: flex-start;
  align-items: center;
  margin-bottom: 12px;

  overflow-x: auto;
  -webkit-overflow-scrolling: touch;

  padding-bottom: 2px;
}

.responsive-accordion .acc-tab{
  flex: 0 0 auto;
  cursor: pointer;

  padding: 10px 14px;
  border: 1px solid #000;
  background: #fff;
  white-space: nowrap;
  border-radius:0 !important;

  font-size:16px;
  line-height: 1.2;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
}

.responsive-accordion .acc-tab:focus,
.responsive-accordion .acc-tab:focus-visible{
  outline: none !important;
  box-shadow: none !important;
}

.responsive-accordion .acc-tab[aria-expanded="true"]{
  background: #fff;
  border-color:#000;
}

.responsive-accordion .acc-panel{
  margin: 0;
  border:1px solid #000;
  border-radius:0 !important;
  padding:14px;
  background:#fff;
}

.responsive-accordion .crypto-inline{
  display: flex;
  align-items: center;
  gap: 12px;
}

.responsive-accordion .crypto-img{
  width: 88px;
  height: 88px;
  object-fit: cover;
  flex: 0 0 auto;
  border-radius:0 !important;
  background: #fff;
  border:1px solid #000;
}

.responsive-accordion .crypto-code{
  display: inline-block;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;

  max-width: 100%;
  padding: 10px 12px;
  border: 1px solid #000;
  border-radius:0 !important;
  background: #fff;

  font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  font-size:16px;

  flex: 1 1 auto;
  color:#000;
}

@media (max-width: 600px){
  .responsive-accordion .crypto-inline{
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }

  .responsive-accordion .crypto-img{
    width: 96px;
    height: 96px;
  }

  .responsive-accordion .crypto-code{
    width: 100%;
    white-space: nowrap;
    overflow-x: auto;
    text-overflow: clip;
    -webkit-overflow-scrolling: touch;
  }
}

/* Greyscale */
.ui-panel,
.ui-section,
#ui-result,
.responsive-accordion .acc-panel,
.responsive-accordion .acc-tab,
input[type="number"],
input[type="password"],
select,
button,
code,
.ui-pill{
  background: #f7f7f7;
}

.ui-panel,
.ui-section,
#ui-result,
.responsive-accordion .acc-panel,
.responsive-accordion .acc-tab,
input[type="number"],
input[type="password"],
select,
button,
code{
  border-color: rgba(0,0,0,.65);
}

.ui-head{ border-bottom-color: rgba(0,0,0,.65); }

.ui-title,
.ui-small,
.ui-section h3,
label,
.ui-hint,
.ui-row{ color:#000; }

.ui-panel,
.ui-section,
#ui-result,
.responsive-accordion .acc-panel{
  box-shadow: 0 1px 0 rgba(0,0,0,.06), 0 8px 22px rgba(0,0,0,.06);
}

.responsive-accordion .acc-tab{
  background: linear-gradient(#ffffff, #f2f2f2);
}

.responsive-accordion .acc-tab[aria-expanded="true"]{
  background: linear-gradient(#ffffff, #ededed);
}

.ui-pill,
.responsive-accordion .crypto-img,
.responsive-accordion .crypto-code,
input[type="number"],
input[type="password"],
select{
  background: #fdfdfd;
}

.ui-primary,
.ui-ghost,
.ui-copy{
  background: #ffffff;
  border-color: rgba(0,0,0,.65);
}

button{
  background: #ffffff;
  border-color: rgba(0,0,0,.65);
}

button:hover{ background: #f1f1f1; }

/* Accordion Hover Effekt */
.responsive-accordion .acc-tab{
  transition: none;
}

.responsive-accordion .acc-tab:hover{
  background: linear-gradient(#ffffff, #f1f1f1);
  border-color: rgba(0,0,0,.75);
}

.responsive-accordion .acc-tab[aria-expanded="true"]:hover{
  background: linear-gradient(#ffffff, #e6e6e6);
  border-color: rgba(0,0,0,.75);
}

/* Bottom Space */
.spacer{
  height: 5px;
  width: 100%;
  overflow: hidden;
  visibility: hidden;
  pointer-events: none;
}

/* Header */
.header-container{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.header-container .logo{ flex: 0 0 auto; }

.header-container .menu{
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  gap: 16px;
}

/* Hamburger Menü */
.menu-toggle{ position: absolute; left: -9999px; }

.menu-btn{
  display: none;
  cursor: pointer;
  user-select: none;
  padding: 10px 12px;
  border-radius: 6px;
  background: #fff;
}

.menu-btn span,
.menu-btn span::before,
.menu-btn span::after{
  display: block;
  width: 22px;
  height: 2px;
  background: #000;
  content: "";
  border-radius: 2px;
  transition: transform 200ms ease;
}

.menu-btn span::before{ transform: translateY(-6px); }
.menu-btn span::after{ transform: translateY(4px); }

/* Desktop Menü */
nav ul{
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

nav a{
  display: flex;
  color: #000;
  text-decoration: none;
  padding: 12px 16px;
  border-radius: 6px;
  background: #fff;
}

nav a:hover{ background: #f0f0f0; }

/* Mobile Overlay */
@media (max-width: 600px){
  .menu-btn{ display: inline-block; }

  nav ul{
    display: none;
    position: fixed;
    inset: 0;
    z-index: 9999;
    flex-direction: column;
    gap: 6px;
    padding: 56px 16px 24px;
    overflow-y: auto;
    background: #fff;
  }

  .menu-toggle:checked ~ ul{ display: flex; }

  .close-btn{ display: none; }
  .menu-toggle:checked ~ .close-btn{ display: block; }

  nav a{
    width: 100%;
    justify-content: center;
    font-size: 18px;
  }
}

/* X-Button (Overlay oben rechts) */
.close-btn{
  display: none;
  position: fixed;
  top: 14px;
  right: 14px;
  z-index: 10000;
  cursor: pointer;
  user-select: none;
  width: 42px;
  height: 42px;
  border-radius: 8px;
  background: #fff;
}

.close-btn::before,
.close-btn::after{
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 18px;
  height: 2px;
  background: #000;
  border-radius: 2px;
  transform-origin: center;
}

.close-btn::before{ transform: translate(-50%, -50%) rotate(45deg); }
.close-btn::after{ transform: translate(-50%, -50%) rotate(-45deg); }