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

body {
  font-family: "SUSE Mono", sans-serif;
  background: #0f172a;
  color: #e2e8f0;
  min-height: 100vh;
  overflow-x: hidden;
}

.app-container {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: 320px;

  background: #1e293b;
  padding: 40px 30px;
  border-right: 2px solid #334155;
  display: flex;
  flex-direction: column;
}

.sidebar h1 {
  font-size: 26px;
  color: #38bdf8;
  margin-bottom: 40px;
  text-align: center;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.controls {
  display: flex;
  flex-direction: column;
  gap: 25px;
}

.control-group {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.control-group > label {
  color: #cbd5e1;
  font-size: 14px;
  font-weight: 500;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

#lengthValue {
  background: #334155;
  padding: 4px 12px;
  border-radius: 6px;
  color: #38bdf8;
  font-weight: 700;
}

.range-control {
  display: flex;
  align-items: center;
  gap: 12px;
}

.btn-minus,
.btn-plus {
  width: 36px;
  height: 36px;
  background: #334155;
  color: #38bdf8;
  border: 2px solid #38bdf8;
  border-radius: 8px;
  font-size: 20px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.btn-minus:hover,
.btn-plus:hover {
  background: #38bdf8;
  color: white;
  transform: scale(1.1);
}

.btn-minus:active,
.btn-plus:active {
  transform: scale(0.95);
}

.btn-minus:disabled,
.btn-plus:disabled {
  background: #1e293b;
  border-color: #475569;
  color: #475569;
  cursor: not-allowed;
  opacity: 0.5;
  transform: none;
}

input[type="range"] {
  flex: 1;
  height: 6px;
  background: #334155;
  border-radius: 10px;
  outline: none;
  appearance: none;
  -webkit-appearance: none;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  background: #38bdf8;
  cursor: pointer;
  border-radius: 50%;
  transition: all 0.2s;
}

input[type="range"]::-webkit-slider-thumb:hover {
  background: #0ea5e9;
  transform: scale(1.2);
}

input[type="range"]::-moz-range-thumb {
  width: 18px;
  height: 18px;
  background: #38bdf8;
  cursor: pointer;
  border-radius: 50%;
  border: none;
  transition: all 0.2s;
}

input[type="range"]::-moz-range-thumb:hover {
  background: #0ea5e9;
  transform: scale(1.2);
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  padding: 12px;
  background: #0f172a;
  border-radius: 8px;
  transition: all 0.2s;
  border: 2px solid transparent;
}

.checkbox-label:hover {
  background: #1e293b;
  border-color: #38bdf8;
}

.checkbox-label input[type="checkbox"] {
  width: 20px;
  height: 20px;
  cursor: pointer;
  accent-color: #38bdf8;
}

.checkbox-label span {
  color: #cbd5e1;
  font-size: 14px;
  font-weight: 500;
}

.btn-generate {
  width: 100%;
  padding: 16px;
  background: linear-gradient(135deg, #38bdf8 0%, #0ea5e9 100%);
  color: white;
  border: none;
  border-radius: 10px;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  margin-top: 20px;
  transition: all 0.3s;
  box-shadow: 0 4px 15px rgba(56, 189, 248, 0.3);
}

.btn-generate:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(56, 189, 248, 0.4);
}

.btn-generate:active {
  transform: translateY(0);
}

.btn-generate:disabled {
  background: #334155;
  color: #64748b;
  cursor: not-allowed;
  opacity: 0.5;
  box-shadow: none;
  transform: none;
}

.passwords-area {
  flex: 1;
  padding: 40px;
  overflow-y: auto;
}

.passwords-area h2 {
  font-size: 24px;
  color: #38bdf8;
  margin-bottom: 30px;
  font-weight: 700;
}

.passwords-grid {
  display: grid;
  gap: 20px;
  max-width: 1200px;
}

.password-item {
  background: #1e293b;
  border: 2px solid #334155;
  border-radius: 12px;
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 15px;
  transition: all 0.3s;
}

.password-item:hover {
  border-color: #38bdf8;
  transform: translateX(5px);
  box-shadow: 0 4px 15px rgba(56, 189, 248, 0.2);
}

.password-new {
  animation: fadeSlide 0.4s ease-out;
}

@keyframes fadeSlide {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.password-text {
  flex: 1;
  font-family: "Courier New", monospace;
  font-size: 16px;
  color: #e2e8f0;
  word-break: break-all;
  line-height: 1.6;
}

.btn-copy {
  padding: 10px 20px;
  background: #334155;
  color: #38bdf8;
  border: 2px solid #38bdf8;
  border-radius: 8px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
  transition: all 0.2s;
  white-space: nowrap;
}

.btn-copy:hover {
  background: #38bdf8;
  color: white;
  transform: scale(1.05);
}

.btn-copy:active {
  transform: scale(0.95);
}

.toast {
  position: fixed;
  bottom: 30px;
  right: 30px;
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
  color: white;
  padding: 16px 24px;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 600;
  box-shadow: 0 8px 25px rgba(16, 185, 129, 0.4);
  opacity: 0;
  transform: translateY(100px);
  transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
  pointer-events: none;
  z-index: 1000;
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1024px) {
  .app-container {
    flex-direction: column;
  }

  .sidebar {
    width: 100%;
    border-right: none;
    border-bottom: 2px solid #334155;
  }

  .passwords-area {
    padding: 30px 20px;
  }
}

@media (max-width: 768px) {
  .sidebar {
    padding: 30px 20px;
  }

  .sidebar h1 {
    font-size: 22px;
  }

  .passwords-area h2 {
    font-size: 20px;
  }

  .password-item {
    flex-direction: column;
    align-items: stretch;
  }

  .btn-copy {
    width: 100%;
  }
}