:root {
  --bg-color: oklch(98.11% 0.0106 248.33);
  --text-color: oklch(29.23% 0.119 248.33);
  --accent-color: oklch(56.71% 0.224 248.33);
  --accent-hover: oklch(50% 0.2 248.33);
  --number-bg: oklch(85% 0.15 248.33);
  --btn-text: oklch(98.11% 0.0106 248.33);
  --input-bg: oklch(100% 0 0);
  --border-color: oklch(80% 0 0);
}

[data-theme='dark'] {
  --bg-color: oklch(20% 0.05 248.33);
  --text-color: oklch(95% 0.01 248.33);
  --accent-color: oklch(65% 0.2 248.33);
  --accent-hover: oklch(75% 0.2 248.33);
  --number-bg: oklch(35% 0.1 248.33);
  --btn-text: oklch(20% 0.05 248.33);
  --input-bg: oklch(25% 0.04 248.33);
  --border-color: oklch(40% 0.05 248.33);
}

body {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  margin: 0;
  padding: 2rem;
  font-family: system-ui, sans-serif;
  background-color: var(--bg-color);
  color: var(--text-color);
  transition: background-color 0.3s, color 0.3s;
}

.container {
  display: flex;
  flex-direction: column;
  gap: 4rem;
  max-width: 600px;
  width: 100%;
}

.theme-toggle {
  position: fixed;
  top: 1rem;
  right: 1rem;
  padding: 0.5rem 1rem;
  cursor: pointer;
  border-radius: 0.5rem;
  border: 1px solid var(--text-color);
  background: transparent;
  color: var(--text-color);
  z-index: 10;
}

.contact-section {
  padding: 2rem;
  border-radius: 1rem;
  background: var(--input-bg);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.comments-section {
  padding: 2rem;
  border-radius: 1rem;
  background: var(--input-bg);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  margin-bottom: 2rem;
}

.section-title {
  margin-top: 0;
  margin-bottom: 1.5rem;
  text-align: center;
  font-size: 1.5rem;
}

.contact-form {
  display: grid;
  gap: 1.25rem;
}

.form-group {
  display: grid;
  gap: 0.5rem;
}

.form-group label {
  font-size: 0.9rem;
  font-weight: 600;
}

.form-group input,
.form-group textarea {
  padding: 0.75rem;
  border-radius: 0.5rem;
  border: 1px solid var(--border-color);
  background: var(--bg-color);
  color: var(--text-color);
  font-family: inherit;
  font-size: 1rem;
}

.form-group textarea {
  min-height: 120px;
  resize: vertical;
}

.submit-btn {
  padding: 1rem;
  border: none;
  border-radius: 0.5rem;
  background-color: var(--accent-color);
  color: var(--btn-text);
  font-size: 1.1rem;
  font-weight: 700;
  cursor: pointer;
  transition: background-color 0.2s, transform 0.1s;
}

.submit-btn:hover {
  background-color: var(--accent-hover);
}

.submit-btn:active {
  transform: scale(0.98);
}