/* Global Reset */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* Body Themes */
body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: #000;
  color: #e2e8f0;
  transition: background 0.3s, color 0.3s;
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: start;
  padding: 20px;
}

body.light {
  background-color: #f1f5f9;
  color: #1e293b;
}

/* Container */
.container {
  width: 100%;
  max-width: 720px;
  background-color: #1e293b;
  border-radius: 12px;
  padding: 20px;
  box-shadow: 0 0 15px rgba(0, 0, 0, 0.3);
}

body.light .container {
  background-color: #ffffff;
  color: #1e293b;
}

/* Header */
.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  flex-wrap: wrap;
  gap: 10px;
}

.brand img {
  height: 42px;
}

/* Header Controls */
.header-controls {
  display: flex;
  gap: 10px;
  align-items: center;
}

/* Custom Select */
.custom-select select {
  padding: 6px 12px;
  border-radius: 6px;
  border: none;
  background-color: #334155;
  color: #e2e8f0;
  font-weight: 500;
  cursor: pointer;
}

body.light .custom-select select {
  background-color: #e2e8f0;
  color: #1e293b;
}

/* Theme Toggle Switch */
/* Switch base */
.switch {
  position: relative;
  display: inline-block;
  width: 48px;
  height: 26px;
}

.switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

/* Slider */
.slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: #64748b;
  transition: 0.4s;
  border-radius: 34px;
}

.slider:before {
  position: absolute;
  content: "";
  height: 20px;
  width: 20px;
  left: 4px;
  bottom: 3px;
  background-color: white;
  transition: 0.4s;
  border-radius: 50%;
}

/* When checked */
input:checked + .slider {
  background-color: #4f46e5;
}

input:checked + .slider:before {
  transform: translateX(22px);
}

.theme-toggle-wrapper {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Optional: shrink icons a bit */
.theme-icon {
  font-size: 18px;
}


/* Tabs */
.tab-bar {
  display: flex;
  gap: 10px;
  margin: 20px 0;
}
.tab {
  flex: 1;
  padding: 10px;
  font-weight: 600;
  text-align: center;
  border-radius: 8px;
  background: #334155;
  color: #e2e8f0;
  cursor: pointer;
  border: 2px solid transparent;
  transition: 0.2s ease-in-out;
}
.tab.active {
  background-color: #4f46e5;
  color: white;
  border-color: #6366f1;
}
body.light .tab {
  background-color: #e2e8f0;
  color: #1e293b;
}
body.light .tab.active {
  background-color: #6366f1;
  color: white;
}

/* Main Area */
main {
  min-height: 300px;
}

/* Inputs & Textareas */
input[type="text"], input[type="number"], textarea {
  width: 100%;
  padding: 10px;
  margin: 6px 0 12px;
  border-radius: 6px;
  border: 1px solid #94a3b8;
  background: #1e293b;
  color: white;
}

body.light input[type="text"],
body.light input[type="number"],
body.light textarea {
  background: #f8fafc;
  color: #1e293b;
  border-color: #cbd5e1;
}

/* Buttons */
button {
  padding: 10px 15px;
  border-radius: 6px;
  border: none;
  font-weight: 600;
  cursor: pointer;
  transition: 0.2s;
}

button.primary {
  background-color: #4f46e5;
  color: white;
}
button.primary:hover {
  background-color: #4338ca;
}
button.success {
  background-color: #10b981;
  color: white;
}
button.success:hover {
  background-color: #059669;
}
button.danger {
  background-color: #ef4444;
  color: white;
}
button.danger:hover {
  background-color: #dc2626;
}

/* History Lists */
.history-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-height: 300px;
  overflow-y: auto;
}
.history-item {
  display: flex;
  align-items: center;
  gap: 10px;
}
.history-item input {
  flex: 1;
  padding: 8px;
  border-radius: 4px;
  background: #1e293b;
  color: white;
  border: 1px solid #334155;
}
body.light .history-item input {
  background: #f8fafc;
  color: #1e293b;
  border-color: #cbd5e1;
}
.copy-history {
  padding: 6px 10px;
  font-size: 16px;
  cursor: pointer;
  border: none;
  background-color: #475569;
  color: white;
  border-radius: 4px;
}
.copy-history:hover {
  background-color: #334155;
}

/* Footer */
.app-footer {
  margin-top: 30px;
  text-align: center;
  font-size: 13px;
  color: #94a3b8;
}
body.light .app-footer {
  color: #64748b;
}

/* RTL Support */
html[dir="rtl"] {
  direction: rtl;
}
html[dir="rtl"] .tab-bar,
html[dir="rtl"] .header-controls,
html[dir="rtl"] .history-item {
  flex-direction: row-reverse;
}