:root {
  color-scheme: light dark;
  --bg: var(--tg-theme-bg-color, #ffffff);
  --text: var(--tg-theme-text-color, #1a1a1a);
  --hint: var(--tg-theme-hint-color, #6b7280);
  --link: var(--tg-theme-link-color, #2481cc);
  --button: var(--tg-theme-button-color, #2481cc);
  --button-text: var(--tg-theme-button-text-color, #ffffff);
  --section-bg: var(--tg-theme-secondary-bg-color, #f4f4f5);
  --border: rgba(127, 127, 127, 0.25);
  --error: #d92d20;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.4;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 560px;
  margin: 0 auto;
  padding: 16px 16px calc(16px + env(safe-area-inset-bottom));
}

header h1 {
  font-size: 20px;
  margin: 8px 0 4px;
}

.subtitle {
  margin: 0 0 16px;
  color: var(--hint);
  font-size: 14px;
}

form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.label {
  font-size: 13px;
  font-weight: 600;
  color: var(--hint);
}

input, select {
  width: 100%;
  padding: 12px 14px;
  font-size: 16px;
  background: var(--section-bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 12px;
  appearance: none;
  -webkit-appearance: none;
  outline: none;
  transition: border-color 120ms ease;
}

input:focus, select:focus {
  border-color: var(--button);
}

input[type="date"] {
  min-height: 44px;
}

select {
  background-image:
    linear-gradient(45deg, transparent 50%, var(--hint) 50%),
    linear-gradient(135deg, var(--hint) 50%, transparent 50%);
  background-position:
    calc(100% - 18px) 50%,
    calc(100% - 13px) 50%;
  background-size: 5px 5px;
  background-repeat: no-repeat;
  padding-right: 32px;
}

.row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.hint {
  font-size: 12px;
  color: var(--hint);
  min-height: 14px;
}

.error {
  margin: 8px 0 0;
  color: var(--error);
  font-size: 14px;
  min-height: 18px;
}

[hidden] { display: none !important; }