:root{
  --bg: #0b1020;
  --card: rgba(255,255,255,0.06);
  --card2: rgba(255,255,255,0.09);
  --text: #e5e7eb;
  --muted: #a5b4fc;
  --hint: rgba(229,231,235,0.72);
  --line: rgba(255,255,255,0.12);
  --primary: #60a5fa;
  --primary2: #93c5fd;
  --danger: #ef4444;
  --shadow: 0 14px 40px rgba(0,0,0,0.30);
  --radius: 16px;
}

[data-theme="light"]{
  --bg: #f6f7fb;
  --card: rgba(17,24,39,0.05);
  --card2: rgba(17,24,39,0.08);
  --text: #0f172a;
  --muted: #334155;
  --hint: rgba(15,23,42,0.62);
  --line: rgba(15,23,42,0.12);
  --primary: #2563eb;
  --primary2: #1d4ed8;
  --danger: #dc2626;
  --shadow: 0 14px 40px rgba(15,23,42,0.12);
}

*{ box-sizing:border-box; }

/* Arabic Support */
[dir="rtl"] {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

html, body { 
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial;
  background: radial-gradient(1200px 700px at 10% -10%, rgba(96,165,250,0.35), transparent 55%),
              radial-gradient(900px 600px at 95% 20%, rgba(99,102,241,0.25), transparent 60%),
              var(--bg);
  color: var(--text);
  background-attachment: fixed;
}

.app-header{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap: 16px;
  padding: 18px 16px;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}
.brand{
  display:flex;
  align-items:center;
  gap: 12px;
}
.logo-container{
  width: 50px; height: 50px;
  display:grid; place-items:center;
  background: var(--card2);
  border: 1px solid var(--line);
  border-radius: 14px;
  box-shadow: var(--shadow);
  overflow: hidden;
}
.app-logo {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
h1{ margin:0; font-size: 24px; line-height:1.2; }
.subtitle{
  margin: 4px 0 0;
  color: var(--hint);
  font-size: 13px;
}

.layout{
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 16px 24px;
  display:grid;
  gap: 16px;
  grid-template-columns: 1fr;
  flex: 1; /* Grow to take available space */
  width: 100%;
}
@media (min-width: 980px){
  .layout{ grid-template-columns: 1.1fr 0.9fr; }
}

.panel, .preview-card, .history-card{
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  backdrop-filter: blur(8px);
}

.panel{
  padding: 14px;
}

.tabs{
  display:flex;
  gap: 8px;
  overflow:auto;
  padding-bottom: 10px;
}
.tab{
  border: 1px solid var(--line);
  background: transparent;
  color: var(--text);
  padding: 10px 12px;
  border-radius: 999px;
  cursor:pointer;
  font-weight: 600;
  white-space: nowrap;
  transition: transform .12s ease, background .2s ease;
}
.tab:hover{ transform: translateY(-1px); background: var(--card2); }
.tab.active{ background: rgba(96,165,250,0.25); border-color: rgba(96,165,250,0.35); }

.tab-content{ padding: 8px 2px; }
.tab-pane{ display:none; animation: pop .18s ease; }
.tab-pane.show{ display:block; }

.field{
  display:grid;
  gap: 6px;
  margin: 12px 0;
}
.field span{
  color: var(--hint);
  font-size: 13px;
}
input, textarea, select{
  width:100%;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: rgba(0,0,0,0.12);
  color: var(--text);
  padding: 10px 12px;
  outline:none;
}

/* Fix background color in select (choosing list) */
select option {
  background-color: var(--bg);
  color: var(--text);
}

[data-theme="light"] input,
[data-theme="light"] textarea,
[data-theme="light"] select{
  background: rgba(255,255,255,0.65);
}

[data-theme="light"] select option {
  background-color: #ffffff;
  color: #0f172a;
}

textarea{ resize: vertical; min-height: 90px; }
.hint{ color: var(--hint); font-size: 13px; margin: 6px 0 0; }

.grid-2{
  display:grid;
  gap: 10px;
  grid-template-columns: 1fr;
}
@media (min-width: 520px){
  .grid-2{ grid-template-columns: 1fr 1fr; }
}

.check {
  display: inline-flex;
  gap: 10px;
  align-items: center;
  margin: 12px 0;
  color: var(--hint);
  font-size: 14px;
  cursor: pointer;
  width: auto;
}

/* Only target checkboxes within .check to avoid affecting other inputs/buttons */
.check input[type="checkbox"] {
  width: 18px;
  height: 18px;
  margin: 0;
  cursor: pointer;
  flex-shrink: 0;
}

.primary-btn, .ghost-btn, .danger-btn{
  border-radius: 12px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  cursor:pointer;
  font-weight: 700;
  transition: transform .12s ease, filter .2s ease, background .2s ease;
}
.primary-btn{
  background: linear-gradient(180deg, var(--primary), var(--primary2));
  border-color: rgba(147,197,253,0.35);
  color: #071018;
}
.ghost-btn{
  background: transparent;
  color: var(--text);
}
.danger-btn{
  background: rgba(239,68,68,0.14);
  border-color: rgba(239,68,68,0.25);
  color: var(--text);
}
.primary-btn:hover, .ghost-btn:hover, .danger-btn:hover{
  transform: translateY(-1px);
  filter: brightness(1.05);
}
.downloads{
  display:flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 10px;
}
.saveRow{
  display:flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 10px;
}
.file-btn input{ display:none; }

.customize{
  border-top: 1px solid var(--line);
  padding-top: 12px;
  margin-top: 10px;
}
.customize h3{
  margin: 10px 0 8px;
  font-size: 16px;
}

.preview{
  display:grid;
  gap: 16px;
}
.preview-card{
  padding: 14px;
}
.preview-head{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap: 10px;
}
.badge{
  font-size: 12px;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--card2);
  color: var(--hint);
}
.qr-stage{
  margin-top: 12px;
  padding: 14px;
  border-radius: 14px;
  border: 1px dashed var(--line);
  background: rgba(0,0,0,0.08);
  display:grid;
  place-items:center;
  min-height: 320px;
  overflow:hidden;
  position: relative;
}
.qr-stage.generate{
  animation: shimmer .22s ease;
}
.small{ color: var(--hint); margin: 10px 0 0; font-size: 13px; }


.history-card{
  padding: 14px;
}
.history-head{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap: 10px;
  flex-wrap: wrap;
}
.history-actions{
  display:flex;
  gap: 8px;
  flex-wrap: wrap;
}
.history-list{
  margin-top: 12px;
  display:grid;
  gap: 10px;
  max-height: 420px;
  overflow:auto;
  padding-right: 4px;
}
.history-item{
  border: 1px solid var(--line);
  background: rgba(0,0,0,0.08);
  border-radius: 14px;
  padding: 10px;
  display:grid;
  gap: 8px;
}
.history-meta{
  display:flex;
  justify-content:space-between;
  gap: 10px;
  color: var(--hint);
  font-size: 12px;
}
.history-actions-row{
  display:flex;
  gap: 8px;
  flex-wrap: wrap;
}
.history-actions-row button{
  padding: 8px 10px;
  border-radius: 10px;
  font-weight: 700;
}


.batch-actions{
  display:flex;
  gap: 8px;
  flex-wrap: wrap;
}
.batch-grid{
  margin-top: 12px;
  display:grid;
  grid-template-columns: 1fr;
  gap: 10px;
}
@media (min-width: 700px){
  .batch-grid{ grid-template-columns: 1fr 1fr; }
}
.batch-card{
  border: 1px solid var(--line);
  background: rgba(0,0,0,0.08);
  border-radius: 14px;
  padding: 10px;
  display:grid;
  gap: 8px;
}
.batch-preview{
  border: 1px dashed var(--line);
  border-radius: 14px;
  padding: 10px;
  display:grid;
  place-items:center;
  min-height: 220px;
}


.scanner-box{
  border: 1px dashed var(--line);
  border-radius: 14px;
  padding: 10px;
  background: rgba(0,0,0,0.08);
}
.scan-result{
  margin-top: 12px;
  display:grid;
  gap: 8px;
}
.scan-title{
  color: var(--hint);
  font-weight: 700;
  font-size: 13px;
}


.app-footer{
  padding: 18px 16px 28px;
  text-align:center;
  color: var(--hint);
  font-size: 13px;
  width: 100%;
}


@keyframes pop {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes shimmer{
  from { transform: scale(0.98); opacity: 0.7; }
  to { transform: scale(1); opacity: 1; }
}