:root {
    --bg-color: #f8fafc;
    --card-bg: #ffffff;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --accent-color: #3b82f6;
    --accent-hover: #2563eb;
    --border-color: #e2e8f0;
    --input-bg: #f1f5f9;
    --success: #10b981;
}

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    margin: 0;
    line-height: 1.6;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

header {
    background-color: var(--card-bg);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 2rem;
    position: sticky;
    top: 0;
    z-index: 10;
    backdrop-filter: blur(10px);
    background-color: rgba(255, 255, 255, 0.8);
}

nav {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo span {
    color: var(--accent-color);
}

.nav-links {
    display: flex;
    gap: 1.5rem;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.2s;
    font-weight: 500;
}

.nav-links a:hover {
    color: var(--accent-color);
}

.btn {
    background-color: var(--accent-color);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    text-decoration: none;
    font-weight: 600;
    transition: background-color 0.2s, transform 0.1s;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn:hover {
    background-color: var(--accent-hover);
    transform: translateY(-1px);
}

.container {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 2rem;
}

/* Search Section */
.hero {
    text-align: center;
    margin-bottom: 3rem;
    padding: 4rem 1rem;
    background: radial-gradient(circle at center, rgba(59, 130, 246, 0.1) 0%, transparent 70%);
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    background: linear-gradient(to right, #0f172a, #475569);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.search-bar {
    max-width: 600px;
    margin: 0 auto;
    display: flex;
    gap: 0.5rem;
}

.search-input {
    flex: 1;
    padding: 0.75rem 1rem;
    border-radius: 0.5rem;
    border: 1px solid var(--border-color);
    background-color: var(--card-bg);
    color: var(--text-primary);
    font-size: 1.1rem;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.search-input:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

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

.card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    padding: 1.5rem;
    transition: transform 0.2s, box-shadow 0.2s;
    display: flex;
    flex-direction: column;
    text-decoration: none;
    /* Ensure no underline on the card itself if wrapped in A tag */
    color: inherit;
    /* Inherit text color */
}

/* Ensure all links inside cards by default behave nicely unless overridden */
.card a {
    color: inherit;
    text-decoration: none;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    border-color: var(--accent-color);
}

.card-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.tag {
    background-color: rgba(59, 130, 246, 0.1);
    color: var(--accent-color);
    padding: 0.25rem 0.5rem;
    border-radius: 9999px;
    font-size: 0.85rem;
    font-weight: 500;
}

.card-content {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.card-footer {
    margin-top: auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* Forms */
.form-container {
    max-width: 600px;
    margin: 0 auto;
    background-color: var(--card-bg);
    padding: 2rem;
    border-radius: 1rem;
    border: 1px solid var(--border-color);
}

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

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.form-textarea {
    width: 100%;
    padding: 0.75rem;
    border-radius: 0.5rem;
    border: 1px solid var(--border-color);
    background-color: var(--input-bg);
    color: var(--text-primary);
    font-family: inherit;
    min-height: 150px;
    resize: vertical;
}

.form-textarea:focus {
    outline: none;
    border-color: var(--accent-color);
}

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

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

.detail-title {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.copy-btn {
    background-color: var(--input-bg);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    cursor: pointer;
    font-size: 0.9rem;
}

.copy-btn:hover {
    color: var(--text-primary);
    border-color: var(--text-primary);
}

.prompt-display {
    background-color: var(--card-bg);
    padding: 2rem;
    border-radius: 1rem;
    border: 1px solid var(--border-color);
    white-space: pre-wrap;
    font-family: 'Courier New', Courier, monospace;
    font-size: 1.1rem;
    position: relative;
}