* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
  margin: 0;
}

body {
  background: #0b0b0c;
  color: #f2f2f2;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom)
    env(safe-area-inset-left);
}

.screen {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  padding: 24px 20px;
  gap: 16px;
}

.hidden {
  display: none;
}

h1 {
  font-size: 22px;
  margin: 0 0 8px;
}

h2 {
  font-size: 18px;
  margin: 0;
  color: #cfcfcf;
}

input[type="text"],
input[type="number"],
input[type="password"],
input[type="datetime-local"],
textarea {
  width: 100%;
  padding: 14px;
  font-size: 17px;
  border-radius: 10px;
  border: 1px solid #333;
  background: #18181a;
  color: #f2f2f2;
}

textarea {
  resize: none;
}

button {
  font-size: 17px;
  border: none;
  border-radius: 10px;
  cursor: pointer;
}

button:disabled,
input:disabled,
textarea:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.primary-button {
  padding: 16px;
  background: #3a7bfd;
  color: #fff;
  font-weight: 600;
}

.primary-button:active {
  background: #2f63cc;
}

.back-button {
  align-self: flex-start;
  background: transparent;
  color: #9fb8ff;
  padding: 8px 0;
  font-size: 16px;
}

.secondary-button {
  padding: 14px;
  background: transparent;
  color: #9fb8ff;
  border: 1px solid #2a2a2c;
  font-weight: 600;
}

.secondary-button:active {
  background: #18181a;
}

.export-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.export-header h2 {
  margin: 0;
}

.export-header .secondary-button {
  padding: 8px 14px;
}

#export-content {
  flex: 1;
  margin: 0;
  padding: 14px;
  background: #18181a;
  border: 1px solid #2a2a2c;
  border-radius: 10px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 13px;
  line-height: 1.5;
  white-space: pre-wrap;
  word-break: break-word;
  overflow-y: auto;
}

#category-list,
#group-category-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.category-button {
  padding: 20px;
  background: #18181a;
  color: #f2f2f2;
  border: 1px solid #2a2a2c;
  border-radius: 12px;
  font-size: 18px;
  font-weight: 600;
  text-align: left;
}

.category-button:active {
  background: #232325;
}

.group-button {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.group-button::after {
  content: "›";
  color: #6b6b70;
  font-weight: 400;
  font-size: 22px;
}

#flow-inputs {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

#flow-datetime {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

#flow-offset-buttons {
  display: flex;
  gap: 8px;
}

.offset-button {
  padding: 10px 14px;
  background: #18181a;
  color: #f2f2f2;
  border: 1px solid #2a2a2c;
  border-radius: 10px;
  font-size: 14px;
}

.offset-button:active {
  background: #232325;
}

.conversion-preview {
  margin: -4px 0 0;
  color: #9fb8ff;
  font-size: 15px;
}

.preset-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.preset-button {
  padding: 12px 14px;
  background: #18181a;
  color: #f2f2f2;
  border: 1px solid #2a2a2c;
  border-radius: 10px;
  font-size: 15px;
}

.preset-button.selected {
  background: #3a7bfd;
  border-color: #3a7bfd;
  color: #fff;
}

.error {
  color: #ff6b6b;
}

#flow-message {
  font-size: 15px;
}