@import url("https://fonts.googleapis.com/css2?family=Cairo:wght@600;700;800&family=IBM+Plex+Sans+Arabic:wght@400;500;600;700&family=IBM+Plex+Mono:wght@400;500&display=swap");

:root{
  --bg:#F5F6F4;
  --surface:#FFFFFF;
  --surface-alt:#EBEFEC;
  --ink:#10151A;
  --ink-soft:#4A5560;
  --ink-faint:#7C8A85;
  --accent:#0E7C86;
  --accent-strong:#0A5F67;
  --accent-soft:#E1F0EF;
  --warn:#C7511F;
  --border:#DBE1DD;
  --shadow: 0 1px 2px rgba(16,21,26,.05), 0 8px 24px rgba(16,21,26,.06);
}
@media (prefers-color-scheme: dark){
  :root{
    --bg:#0B1210;
    --surface:#121B19;
    --surface-alt:#16211E;
    --ink:#EAF2F0;
    --ink-soft:#9FB3AE;
    --ink-faint:#67807A;
    --accent:#3FD8C9;
    --accent-strong:#6BEADC;
    --accent-soft:#163330;
    --warn:#F0955A;
    --border:#223330;
    --shadow: 0 1px 2px rgba(0,0,0,.3), 0 12px 30px rgba(0,0,0,.35);
  }
}

*{box-sizing:border-box;}
html{direction:rtl;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"IBM Plex Sans Arabic","IBM Plex Sans",system-ui,sans-serif;
  line-height:1.7;
  min-height:100vh;
  display:flex;
  flex-direction:column;
}

.mono{ font-family:"IBM Plex Mono",monospace; direction:ltr; unicode-bidi:embed; }

.topbar{
  padding:28px 20px 18px;
  text-align:center;
  border-bottom:1px solid var(--border);
  background:var(--surface);
}
.brand{
  font-family:"Cairo",sans-serif;
  font-weight:800;
  font-size:26px;
  display:flex;
  align-items:center;
  justify-content:center;
  gap:8px;
}
.subtitle{ margin:6px 0 0; color:var(--ink-soft); font-size:14px; }

.wrap{
  flex:1;
  max-width:520px;
  width:100%;
  margin:0 auto;
  padding:32px 20px 60px;
}

.screen.hidden{ display:none; }

/* ---- Choice screen ---- */
.choice-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:14px;
}
@media (max-width:480px){
  .choice-grid{ grid-template-columns:1fr; }
}
.choice-card{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:14px;
  padding:26px 18px;
  text-align:center;
  cursor:pointer;
  box-shadow:var(--shadow);
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:8px;
  font-family:inherit;
  color:var(--ink);
  transition:border-color .15s ease, transform .15s ease;
}
.choice-card:hover{ border-color:var(--accent); transform:translateY(-2px); }
.choice-card:focus-visible{ outline:2px solid var(--accent); outline-offset:2px; }
.choice-icon{
  width:44px; height:44px;
  border-radius:50%;
  background:var(--accent-soft);
  color:var(--accent-strong);
  display:flex; align-items:center; justify-content:center;
  font-size:20px; font-weight:700;
}
.choice-title{ font-family:"Cairo",sans-serif; font-weight:700; font-size:17px; }
.choice-desc{ font-size:13px; color:var(--ink-soft); }

/* ---- Shared ---- */
.back-btn{
  background:none; border:none; color:var(--ink-faint);
  font-family:inherit; font-size:14px; cursor:pointer; padding:0 0 20px;
}
.back-btn:hover{ color:var(--accent-strong); }

h2{ font-family:"Cairo",sans-serif; font-size:22px; margin:0 0 6px; }
.hint{ color:var(--ink-soft); font-size:14.5px; margin:0 0 18px; }

.code-form{ display:flex; gap:10px; flex-wrap:wrap; }
.code-input{
  flex:1;
  min-width:160px;
  font-family:"IBM Plex Mono",monospace;
  font-size:22px;
  letter-spacing:.18em;
  text-align:center;
  text-transform:uppercase;
  direction:ltr;
  padding:14px;
  border-radius:10px;
  border:1.5px solid var(--border);
  background:var(--surface);
  color:var(--ink);
}
.code-input:focus{ outline:none; border-color:var(--accent); }

.primary-btn{
  display:inline-flex; align-items:center; justify-content:center;
  background:var(--accent);
  color:#fff;
  border:none;
  border-radius:10px;
  padding:14px 22px;
  font-family:"Cairo",sans-serif;
  font-weight:700;
  font-size:15px;
  cursor:pointer;
  text-decoration:none;
  transition:background .15s ease, opacity .15s ease;
}
.primary-btn:hover{ background:var(--accent-strong); }
.primary-btn:disabled{ opacity:.45; cursor:not-allowed; }

.code-display{
  background:var(--accent-soft);
  border:1px solid var(--accent);
  border-radius:12px;
  padding:16px 18px;
  margin-bottom:20px;
  text-align:center;
}
.code-display.hidden{ display:none; }
.code-value{
  font-size:18px;
  font-weight:600;
  letter-spacing:.14em;
  color:var(--accent-strong);
}
.hint.small{ font-size:12.5px; margin:12px 0 0; }
.link-row{
  display:flex;
  gap:8px;
  flex-wrap:wrap;
}
.link-input{
  flex:1;
  min-width:180px;
  font-size:13px;
  padding:12px 14px;
  border-radius:10px;
  border:1.5px solid var(--border);
  background:var(--surface);
  color:var(--ink);
}
.link-input:focus{ outline:none; border-color:var(--accent); }

.status-row{
  display:flex; align-items:center; gap:10px;
  margin-bottom:20px;
  font-size:14.5px;
  color:var(--ink-soft);
}
.status-dot{
  width:10px; height:10px; border-radius:50%;
  background:var(--ink-faint);
  flex:none;
}
.status-dot.connecting{ background:#D4A72C; }
.status-dot.connected{ background:var(--accent); }
.status-dot.error{ background:var(--warn); }

.panel.hidden{ display:none; }

.drop-label{
  display:flex;
  align-items:center;
  justify-content:center;
  border:1.5px dashed var(--border);
  border-radius:12px;
  padding:26px 16px;
  cursor:pointer;
  text-align:center;
  color:var(--ink-soft);
  font-size:14.5px;
  margin-bottom:14px;
  background:var(--surface);
}
.drop-label:hover{ border-color:var(--accent); color:var(--ink); }
.drop-label input[type="file"]{ display:none; }

.progress-wrap{ margin:18px 0; }
.progress-wrap.hidden{ display:none; }
.progress-meta{
  display:flex; justify-content:space-between;
  font-size:13px; color:var(--ink-soft); margin-bottom:6px;
}
.progress-track{
  height:10px;
  border-radius:100px;
  background:var(--surface-alt);
  overflow:hidden;
}
.progress-bar{
  height:100%;
  width:0%;
  background:var(--accent);
  border-radius:100px;
  transition:width .15s ease;
}

#downloadLink.hidden{ display:none; }
#downloadLink{ width:100%; margin-top:10px; }

.log{
  margin-top:24px;
  border-top:1px solid var(--border);
  padding-top:14px;
  font-family:"IBM Plex Mono",monospace;
  font-size:12px;
  color:var(--ink-faint);
  direction:ltr;
  text-align:left;
  max-height:160px;
  overflow-y:auto;
}
.log div{ padding:2px 0; }

.foot{
  text-align:center;
  padding:18px 20px 28px;
  font-size:12.5px;
  color:var(--ink-faint);
}