/* Color palette */
:root {
  --vt-c-white: #ffffff;
  --vt-c-white-soft: #f8f8f8;
  --vt-c-white-mute: #f2f2f2;

  --vt-c-black: #181818;
  --vt-c-black-soft: #222222;
  --vt-c-black-mute: #282828;

  --vt-c-indigo: #2c3e50;

  --vt-c-divider-light-1: rgba(60, 60, 60, 0.29);
  --vt-c-divider-light-2: rgba(60, 60, 60, 0.12);
  --vt-c-divider-dark-1: rgba(84, 84, 84, 0.65);
  --vt-c-divider-dark-2: rgba(84, 84, 84, 0.48);

  --vt-c-text-light-1: var(--vt-c-indigo);
  --vt-c-text-light-2: rgba(60, 60, 60, 0.66);
  --vt-c-text-dark-1: var(--vt-c-white);
  --vt-c-text-dark-2: rgba(235, 235, 235, 0.64);
}

/* Semantic color variables */
:root {
  --color-background: var(--vt-c-white);
  --color-background-soft: var(--vt-c-white-soft);
  --color-background-mute: var(--vt-c-white-mute);

  --color-border: var(--vt-c-divider-light-2);
  --color-border-hover: var(--vt-c-divider-light-1);

  --color-heading: var(--vt-c-text-light-1);
  --color-text: var(--vt-c-text-light-1);

  --section-gap: 160px;
  --green: hsla(160, 100%, 37%, 1);
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-background: var(--vt-c-black);
    --color-background-soft: var(--vt-c-black-soft);
    --color-background-mute: var(--vt-c-black-mute);

    --color-border: var(--vt-c-divider-dark-2);
    --color-border-hover: var(--vt-c-divider-dark-1);

    --color-heading: var(--vt-c-text-dark-1);
    --color-text: var(--vt-c-text-dark-2);
  }
}

/* Base styles */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  font-weight: normal;
}

body {
  min-height: 100vh;
  color: var(--color-text);
  background: var(--color-background);
  transition: color 0.5s, background-color 0.5s;
  line-height: 1.6;
  font-family: Inter, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu,
    Cantarell, 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
  font-size: 15px;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

#app {
  max-width: 1280px;
  margin: 0 auto;
  padding: 2rem;
  font-weight: normal;
}

/* Links */
a {
  text-decoration: none;
  color: var(--green);
  transition: 0.4s;
  padding: 3px;
}

@media (hover: hover) {
  a:hover {
    background-color: hsla(160, 100%, 37%, 0.2);
  }
}

/* Header */
header {
  position: sticky;
  top: 0;
  background: var(--color-background);
  border-bottom: 1px solid var(--color-border);
  padding: 1rem 0;
  margin-bottom: 2rem;
  z-index: 100;
}

header nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 2rem;
}

header .logo {
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--color-heading);
}

header .nav-links {
  display: flex;
  gap: 1rem;
  align-items: center;
}

header .nav-links a,
header .nav-links button {
  padding: 0.5rem 1rem;
  border: none;
  background: none;
  cursor: pointer;
  color: var(--color-text);
  font-size: 1rem;
}

header .nav-links button:hover {
  background-color: hsla(160, 100%, 37%, 0.1);
  border-radius: 4px;
}

/* Footer */
footer {
  margin-top: 4rem;
  padding: 2rem 0;
  border-top: 1px solid var(--color-border);
  text-align: center;
  color: var(--vt-c-text-light-2);
}

/* Forms */
.form-container {
  max-width: 500px;
  margin: 2rem auto;
  padding: 2rem;
  background: var(--color-background-soft);
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  color: var(--color-heading);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  background: var(--color-background);
  color: var(--color-text);
  font-size: 1rem;
  font-family: inherit;
}

.form-group textarea {
  min-height: 150px;
  resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--green);
}

.error-message {
  color: #d32f2f;
  margin-top: 0.5rem;
  font-size: 0.875rem;
}

/* Buttons */
button,
.btn {
  padding: 0.75rem 1.5rem;
  background: var(--green);
  color: white;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-size: 1rem;
  transition: background 0.3s;
}

button:hover,
.btn:hover {
  background: hsla(160, 100%, 30%, 1);
}

button:disabled,
.btn:disabled {
  background: var(--color-border);
  cursor: not-allowed;
}

button.secondary,
.btn.secondary {
  background: var(--color-background-mute);
  color: var(--color-text);
}

button.secondary:hover,
.btn.secondary:hover {
  background: var(--color-border-hover);
}

button.danger,
.btn.danger {
  background: #d32f2f;
}

button.danger:hover,
.btn.danger:hover {
  background: #b71c1c;
}

/* Prompts Grid */
.prompts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.prompt-card {
  background: var(--color-background-soft);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 1.5rem;
  cursor: pointer;
  transition: all 0.3s;
}

.prompt-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  border-color: var(--color-border-hover);
}

.prompt-card h3 {
  margin-bottom: 0.5rem;
  color: var(--color-heading);
}

.prompt-card .meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 1rem;
  font-size: 0.875rem;
  color: var(--vt-c-text-light-2);
}

.prompt-card .tags {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-top: 0.75rem;
}

.prompt-card .tag {
  padding: 0.25rem 0.5rem;
  background: var(--color-background-mute);
  border-radius: 4px;
  font-size: 0.75rem;
}

/* Prompt Detail */
.prompt-detail {
  max-width: 800px;
  margin: 0 auto;
}

.prompt-detail .header {
  margin-bottom: 2rem;
}

.prompt-detail .actions {
  display: flex;
  gap: 1rem;
  margin-top: 1rem;
}

.prompt-detail .content {
  background: var(--color-background-soft);
  padding: 2rem;
  border-radius: 8px;
  margin-bottom: 2rem;
  white-space: pre-wrap;
  font-family: 'Courier New', monospace;
  line-height: 1.8;
}

/* Comments */
.comments-section {
  margin-top: 3rem;
}

.comment {
  background: var(--color-background-soft);
  padding: 1rem;
  border-radius: 8px;
  margin-bottom: 1rem;
}

.comment .author {
  font-weight: bold;
  margin-bottom: 0.5rem;
  color: var(--color-heading);
}

.comment .date {
  font-size: 0.875rem;
  color: var(--vt-c-text-light-2);
  margin-left: 0.5rem;
}

/* Rating Widget */
.rating-widget {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.rating-widget .stars {
  display: flex;
  gap: 0.25rem;
}

.rating-widget .star {
  cursor: pointer;
  font-size: 1.5rem;
  color: var(--color-border);
  transition: color 0.2s;
}

.rating-widget .star.filled {
  color: #ffd700;
}

.rating-widget .star:hover {
  color: #ffc107;
}

/* Search */
.search-container {
  max-width: 600px;
  margin: 0 auto 2rem;
}

.search-container input {
  width: 100%;
  padding: 1rem;
  border: 2px solid var(--color-border);
  border-radius: 8px;
  font-size: 1rem;
  background: var(--color-background);
  color: var(--color-text);
}

.search-container input:focus {
  outline: none;
  border-color: var(--green);
}

/* Loading */
.loading {
  text-align: center;
  padding: 2rem;
  color: var(--vt-c-text-light-2);
}

/* Empty state */
.empty-state {
  text-align: center;
  padding: 4rem 2rem;
  color: var(--vt-c-text-light-2);
}

.empty-state h2 {
  margin-bottom: 1rem;
}

/* Utility classes */
.text-center {
  text-align: center;
}

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }