:root {
  --bg-color: #121213;
  --text-color: #ffffff;
  --border-color: #3a3a3c;
  --input-bg: #2c2c2e;
  --btn-primary: #538d4e;
  --btn-secondary: #818384;
  --accent-color: #d7dadc;
}

/* Screen reader only class for accessibility */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* Skip to main content link */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--btn-primary);
  color: white;
  padding: 8px;
  text-decoration: none;
  z-index: 100;
}

.skip-link:focus {
  top: 0;
}

body {
  font-family:
    -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial,
    sans-serif;
  background-color: var(--bg-color);
  color: var(--text-color);
  margin: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  min-height: 100vh;
  min-height: 100dvh;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  max-width: 500px;
  padding: 10px 20px;
  box-sizing: border-box;
  border-bottom: 1px solid var(--border-color);
}

h1 {
  margin: 0;
  font-size: 1.8rem;
  letter-spacing: 2px;
}

.selectors {
  display: flex;
  gap: 8px;
}

select#lang-selector,
select#unit-selector {
  background: var(--input-bg);
  color: var(--text-color);
  border: 1px solid var(--border-color);
  padding: 5px 8px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 0.9rem;
}

#game-container {
  flex: 1;
  width: 100%;
  max-width: 500px;
  padding: 20px;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  align-items: center;
}

#daily-category {
  color: #888;
  font-size: 0.9rem;
  text-transform: uppercase;
  margin-bottom: 5px;
  letter-spacing: 1px;
}

#target-item {
  font-size: 1.8rem;
  font-weight: bold;
  text-align: center;
  margin-bottom: 8px;
  line-height: 1.2;
}

#instruction-text {
  color: #999;
  font-size: 0.95rem;
  text-align: center;
  margin-bottom: 20px;
  font-style: italic;
}

#guess-list {
  flex: 1;
  width: 100%;
  overflow-y: auto;
  flex-grow: 0;
  margin-bottom: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.guess-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  font-size: 1.1rem;
  background-color: #1a1a1b;
  animation: fadeIn 0.3s ease;
}

.guess-icon {
  font-size: 1.2rem;
  aria-hidden: true;
}

/* Focus indicators for accessibility */
input:focus,
button:focus,
select:focus {
  outline: 3px solid var(--btn-primary);
  outline-offset: 2px;
}

.controls {
  width: 100%;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 20px;
}

input[type="number"] {
  flex: 2 1 200px;
  min-width: 200px;
  padding: 15px;
  border-radius: 4px;
  border: 2px solid var(--border-color);
  background: var(--input-bg);
  color: var(--text-color);
  font-size: 1.2rem;
  text-align: center;
  outline: none;
  -moz-appearance: textfield;
}
input::-webkit-outer-spin-button,
input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

button {
  flex: 1 1 120px;
  min-width: 120px;
  padding: 15px;
  border-radius: 4px;
  border: none;
  background-color: var(--btn-primary);
  color: white;
  font-weight: bold;
  font-size: 1rem;
  cursor: pointer;
  transition: opacity 0.2s;
}

@media (max-width: 400px) {
  input[type="number"],
  button {
    flex: 1 1 100%;
    width: 100%;
  }
}

button:active {
  opacity: 0.8;
}
button:disabled {
  background-color: var(--border-color);
  cursor: not-allowed;
}

#result-modal {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: #1a1a1b;
  color: var(--text-color);
  padding: 30px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.8);
  text-align: center;
  margin: 0;
  width: 85%;
  max-width: 320px;
  z-index: 1000;
}

.modal-close {
  position: absolute;
  top: 10px;
  right: 10px;
  min-width: 0;
  width: 36px;
  height: 36px;
  padding: 0;
  background-color: var(--btn-secondary);
  border-radius: 999px;
  line-height: 1;
  font-size: 1.1rem;
}

.hidden {
  display: none !important;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(5px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}