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

:root {
  --bg: #f0f2f5;
  --card-bg: #fff;
  --card-shadow: rgba(0, 0, 0, 0.1);
  --title-color: #1a1a2e;
  --subtitle-color: #888;
  --label-color: #555;
  --btn-bg: #4361ee;
  --btn-hover: #3a56d4;
  --theme-btn-bg: #e8e8e8;
}

[data-theme="dark"] {
  --bg: #1a1a2e;
  --card-bg: #25274d;
  --card-shadow: rgba(0, 0, 0, 0.4);
  --title-color: #f0f0f0;
  --subtitle-color: #aaa;
  --label-color: #ccc;
  --btn-bg: #5a7afe;
  --btn-hover: #4a6ae8;
  --theme-btn-bg: #3a3a5e;
}

:root {
  --input-bg: #f5f6fa;
  --input-border: #ddd;
  --input-text: #333;
  --status-color: #27ae60;
}

[data-theme="dark"] {
  --input-bg: #1a1a3e;
  --input-border: #3a3a5e;
  --input-text: #eee;
  --status-color: #5aff8a;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: var(--bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  transition: background 0.3s;
}

.container {
  background: var(--card-bg);
  border-radius: 16px;
  padding: 40px 32px;
  box-shadow: 0 4px 24px var(--card-shadow);
  text-align: center;
  max-width: 480px;
  width: 100%;
  margin: 20px;
  transition: background 0.3s, box-shadow 0.3s;
}

.header {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  margin-bottom: 4px;
}

h1 {
  font-size: 28px;
  color: var(--title-color);
  transition: color 0.3s;
}

#theme-btn {
  position: absolute;
  right: 0;
  background: var(--theme-btn-bg);
  border: none;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  font-size: 20px;
  cursor: pointer;
  transition: background 0.3s, transform 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
}

#theme-btn:hover {
  transform: scale(1.1);
}

.subtitle {
  font-size: 14px;
  color: var(--subtitle-color);
  margin-bottom: 24px;
  transition: color 0.3s;
}

#generate-btn {
  background: var(--btn-bg);
  color: #fff;
  border: none;
  padding: 14px 40px;
  font-size: 18px;
  border-radius: 10px;
  cursor: pointer;
  transition: background 0.2s, transform 0.1s;
  margin-bottom: 28px;
}

#generate-btn:hover {
  background: var(--btn-hover);
}

#generate-btn:active {
  transform: scale(0.96);
}

.game {
  display: flex;
  align-items: center;
  gap: 8px;
  justify-content: center;
  margin-bottom: 16px;
}

.game-label {
  font-size: 14px;
  font-weight: 700;
  color: var(--label-color);
  width: 28px;
  text-align: right;
  flex-shrink: 0;
  transition: color 0.3s;
}

.ball {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

.ball-yellow  { background: #fbc531; color: #333; text-shadow: none; }
.ball-blue    { background: #3498db; }
.ball-red     { background: #e74c3c; }
.ball-gray    { background: #95a5a6; }
.ball-green   { background: #27ae60; }

/* Animal Test */
.animal-container {
  margin-top: 0;
}

.animal-container h2 {
  font-size: 22px;
  color: var(--title-color);
  margin-bottom: 4px;
  transition: color 0.3s;
}

.upload-area {
  border: 2px dashed var(--input-border);
  border-radius: 12px;
  padding: 32px 16px;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
  margin-bottom: 16px;
}

.upload-area:hover {
  border-color: var(--btn-bg);
  background: rgba(67, 97, 238, 0.05);
}

.upload-area.dragover {
  border-color: var(--btn-bg);
  background: rgba(67, 97, 238, 0.1);
}

.upload-icon {
  font-size: 40px;
  display: block;
  margin-bottom: 8px;
}

.upload-area p {
  font-size: 14px;
  color: var(--subtitle-color);
}

.preview-wrap {
  margin-bottom: 16px;
}

.preview-img {
  max-width: 100%;
  max-height: 280px;
  border-radius: 12px;
  object-fit: cover;
}

#animal-btn {
  background: var(--btn-bg);
  color: #fff;
  border: none;
  padding: 14px 40px;
  font-size: 18px;
  border-radius: 10px;
  cursor: pointer;
  transition: background 0.2s, transform 0.1s;
  margin-bottom: 16px;
}

#animal-btn:hover {
  background: var(--btn-hover);
}

#animal-btn:active {
  transform: scale(0.96);
}

.loading {
  margin-bottom: 16px;
  color: var(--subtitle-color);
}

.spinner {
  width: 36px;
  height: 36px;
  border: 4px solid var(--input-border);
  border-top-color: var(--btn-bg);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 0 auto 8px;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.result-card {
  background: var(--input-bg);
  border-radius: 12px;
  padding: 24px;
  transition: background 0.3s;
}

.result-emoji {
  font-size: 64px;
  margin-bottom: 8px;
}

.result-type {
  font-size: 24px;
  font-weight: 700;
  color: var(--title-color);
  margin-bottom: 4px;
}

.result-percent {
  font-size: 16px;
  font-weight: 600;
  color: var(--btn-bg);
  margin-bottom: 12px;
}

.result-desc {
  font-size: 14px;
  color: var(--subtitle-color);
  line-height: 1.6;
}

.result-bars {
  margin-top: 16px;
  text-align: left;
}

.bar-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
}

.bar-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--label-color);
  width: 52px;
  flex-shrink: 0;
}

.bar-track {
  flex: 1;
  height: 10px;
  background: var(--input-border);
  border-radius: 5px;
  overflow: hidden;
}

.bar-fill {
  height: 100%;
  border-radius: 5px;
  transition: width 0.6s ease;
}

.bar-fill.dog { background: #f39c12; }
.bar-fill.cat { background: #9b59b6; }

.bar-value {
  font-size: 13px;
  font-weight: 600;
  color: var(--label-color);
  width: 42px;
  text-align: right;
  flex-shrink: 0;
}

#animal-retry {
  margin-top: 16px;
  background: none;
  border: 1px solid var(--input-border);
  color: var(--subtitle-color);
  padding: 10px 24px;
  font-size: 14px;
  border-radius: 8px;
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s;
}

#animal-retry:hover {
  border-color: var(--btn-bg);
  color: var(--btn-bg);
}

/* Contact */
.contact-container {
  margin-top: 0;
}

.contact-container h2 {
  font-size: 22px;
  color: var(--title-color);
  margin-bottom: 4px;
  transition: color 0.3s;
}

#contact-form {
  display: flex;
  flex-direction: column;
  gap: 12px;
  text-align: left;
}

#contact-form input,
#contact-form textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--input-border);
  border-radius: 8px;
  font-size: 15px;
  font-family: inherit;
  background: var(--input-bg);
  color: var(--input-text);
  transition: border-color 0.2s, background 0.3s, color 0.3s;
  resize: vertical;
}

#contact-form input:focus,
#contact-form textarea:focus {
  outline: none;
  border-color: var(--btn-bg);
}

#submit-btn {
  background: var(--btn-bg);
  color: #fff;
  border: none;
  padding: 14px;
  font-size: 16px;
  border-radius: 10px;
  cursor: pointer;
  transition: background 0.2s, transform 0.1s;
}

#submit-btn:hover {
  background: var(--btn-hover);
}

#submit-btn:active {
  transform: scale(0.96);
}

#submit-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.form-status {
  margin-top: 12px;
  font-size: 14px;
  color: var(--status-color);
  min-height: 20px;
  transition: color 0.3s;
}

.form-status.error {
  color: #e74c3c;
}

.comments-container {
  margin-top: 0;
  text-align: center;
}

.comments-container h2 {
  font-size: 22px;
  color: var(--title-color);
  margin-bottom: 4px;
  transition: color 0.3s;
}

#disqus_thread {
  text-align: left;
}

@media (max-width: 480px) {
  .container {
    padding: 28px 16px;
  }

  .ball {
    width: 38px;
    height: 38px;
    font-size: 14px;
  }

  .game {
    gap: 6px;
  }
}