/* Page-specific styles for tools.html. */
:root {
  --primary-color: #007bff;
  --secondary-color: #66b2ff;
  --text-color: #344050;
  --light-bg: #f9f9f9;
  --border-color: #e2e8f0;
  --success-color: #2ed573;
  --error-color: #ff4757;
  --box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --gradient-bg: linear-gradient(135deg, #007bff 0%, #66b2ff 100%);
}

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

body {
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1.6;
  color: var(--text-color);
  background-color: var(--light-bg);
  padding: 20px;
  overflow-x: hidden;
}

.calculator-container {
  max-width: 700px;
  margin: 30px auto;
  background: white;
  border-radius: 12px;
  box-shadow: var(--box-shadow);
  overflow: hidden;
}

.calculator-header {
  background: var(--gradient-bg);
  color: white;
  padding: 20px;
  text-align: center;
}

h2 {
  font-size: 1.8rem;
  font-weight: 700;
  margin: 0;
  letter-spacing: 1px;
}

.calculator-body {
  padding: 20px;
}

.form-group {
  margin-bottom: 20px;
}

label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
  font-size: 0.9rem;
  color: var(--secondary-color);
}

input,
select {
  width: 100%;
  padding: 12px 15px;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  font-size: 1rem;
  transition: all 0.3s ease;
  background-color: white;
}

input:focus,
select:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.2);
}

.row {
  display: flex;
  flex-wrap: wrap;
  margin: 0 -10px;
}

.col {
  flex: 1;
  padding: 0 10px;
  min-width: 150px;
}

.btn {
  display: inline-block;
  width: 100%;
  padding: 14px;
  background: var(--gradient-bg);
  color: white;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
  text-align: center;
  margin-top: 10px;
}

.btn:hover {
  background: linear-gradient(135deg, #0056b3 0%, #4a90e2 100%);
}

.btn.clear-btn {
  background: linear-gradient(135deg, #6c757d 0%, #495057 100%);
  padding: 10px;
  margin-top: 5px;
}

.btn.clear-btn:hover {
  background: linear-gradient(135deg, #5a6268 0%, #343a40 100%);
}

.result-container {
  margin-top: 25px;
  padding: 20px;
  background-color: var(--light-bg);
  border-radius: 8px;
  display: none;
  animation: fadeIn 0.5s ease;
}

.result-title {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 15px;
  color: var(--primary-color);
  text-align: center;
}

.result-item {
  display: flex;
  justify-content: space-between;
  margin-bottom: 8px;
  padding: 8px 0;
  border-bottom: 1px dashed var(--border-color);
}

.result-total {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--success-color);
  margin-top: 15px;
  text-align: center;
}

@media (max-width: 768px) {
  .col {
    flex: 100%;
    margin-bottom: 15px;
  }

  .calculator-container {
    margin: 15px auto;
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.switch-container {
  display: flex;
  align-items: center;
  margin-bottom: 20px;
}

.switch {
  position: relative;
  display: inline-block;
  width: 50px;
  height: 24px;
  margin-right: 10px;
}

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

.slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: #ccc;
  transition: 0.4s;
  border-radius: 24px;
}

.slider:before {
  position: absolute;
  content: "";
  height: 16px;
  width: 16px;
  left: 4px;
  bottom: 4px;
  background-color: white;
  transition: 0.4s;
  border-radius: 50%;
}

input:checked + .slider {
  background-color: var(--primary-color);
}

input:checked + .slider:before {
  transform: translateX(26px);
}

.paper-size-btn {
  background: var(--gradient-bg);
  padding: 8px 12px;
  font-size: 0.9rem;
  border: none;
  border-radius: 8px;
  color: white;
  cursor: pointer;
  display: inline-block;
  text-align: center;
  text-decoration: none;
  transition: all 0.3s ease;
  margin-left: 15px;
}

.paper-size-btn:hover {
  background: linear-gradient(135deg, #0056b3 0%, #4a90e2 100%);
}

.toast {
  position: fixed;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--error-color);
  color: white;
  padding: 12px 24px;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 500;
  animation:
    fadeIn 0.3s ease,
    slideDown 0.3s ease;
  z-index: 1000;
  display: none;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
}

.toast.show {
  display: block;
}

.toast.success {
  background-color: var(--success-color);
}

.toast.error {
  background-color: var(--error-color);
}

.toast .close-btn {
  margin-left: 16px;
  cursor: pointer;
  font-weight: bold;
  color: rgba(255, 255, 255, 0.8);
  transition: color 0.2s ease;
}

.toast .close-btn:hover {
  color: white;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes slideUp {
  from {
    transform: translate(-50%, 20px);
  }
  to {
    transform: translate(-50%, 0);
  }
}