:root {
    --bg-color: #050505;
    --text-main: #f5f5f5;
    --text-muted: #888888;
    --accent: #d4af37; /* Gold */
    --accent-hover: #f1c40f;
    --surface: #111111;
    --border: #333333;
    
    --font-sans: 'Inter', sans-serif;
    --font-serif: 'Playfair Display', serif;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    font-family: var(--font-sans);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    padding: 2rem;
}

.container {
    width: 100%;
    max-width: 800px;
    display: flex;
    flex-direction: column;
}

header {
    text-align: center;
    margin-bottom: 4rem;
    animation: fadeInDown 1s ease-out;
}

.logo {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--text-main);
    margin-bottom: 0.5rem;
}

.subtitle {
    font-size: 0.9rem;
    color: var(--text-muted);
    font-weight: 300;
}

.input-section {
    display: flex;
    flex-direction: column;
    animation: fadeIn 1s ease-out 0.2s both;
}

h1 {
    font-family: var(--font-serif);
    font-size: 2.5rem;
    font-weight: 400;
    margin-bottom: 2rem;
    text-align: center;
}

textarea {
    width: 100%;
    background-color: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-main);
    font-family: var(--font-sans);
    font-size: 1.1rem;
    padding: 1.5rem;
    resize: vertical;
    min-height: 150px;
    margin-bottom: 2.5rem;
    transition: border-color 0.3s;
}

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

textarea::placeholder {
    color: #444;
}

.mood-section {
    margin-bottom: 3rem;
    text-align: center;
}

.mood-section p {
    color: var(--text-muted);
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-size: 0.8rem;
}

.mood-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    justify-content: center;
}

.mood-btn {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-main);
    padding: 0.6rem 1.2rem;
    border-radius: 20px;
    font-family: var(--font-sans);
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.mood-btn:hover {
    border-color: var(--text-muted);
}

.mood-btn.selected {
    background-color: var(--accent);
    color: #000;
    border-color: var(--accent);
    font-weight: 600;
}

.error-message {
    color: #ff6b6b;
    text-align: center;
    margin-bottom: 1rem;
    font-size: 0.9rem;
    min-height: 20px;
}

.generate-btn {
    align-self: center;
    background-color: var(--text-main);
    color: var(--bg-color);
    border: none;
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
    font-family: var(--font-sans);
    font-weight: 600;
    border-radius: 30px;
    cursor: pointer;
    transition: transform 0.2s, background-color 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.generate-btn:hover {
    background-color: var(--accent);
    transform: translateY(-2px);
}

.generate-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

/* Loader */
.loader {
    border: 2px solid rgba(0,0,0,0.1);
    border-left-color: #000;
    border-radius: 50%;
    width: 16px;
    height: 16px;
    animation: spin 1s linear infinite;
}

@keyframes spin { 0% { transform: rotate(0deg); } 100% { transform: rotate(360deg); } }

.hidden {
    display: none !important;
}

/* Result Section */
.result-section {
    animation: fadeIn 1.5s ease-out;
}

.poetry-card {
    text-align: center;
    padding: 2rem 1rem;
}

.card-line {
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border), transparent);
    margin: 2rem 0;
}

.poem-title {
    font-family: var(--font-serif);
    font-size: 2rem;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    margin-bottom: 2.5rem;
}

.poem-content {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    line-height: 2;
    white-space: pre-wrap;
    color: var(--text-main);
    margin-bottom: 2.5rem;
    font-style: italic;
}

.poem-mood {
    font-family: var(--font-sans);
    color: var(--text-muted);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.card-actions {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
}

.action-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-family: var(--font-sans);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    cursor: pointer;
    transition: color 0.3s;
}

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

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeInDown {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 600px) {
    h1 { font-size: 2rem; }
    textarea { font-size: 1rem; padding: 1rem; }
    .poem-title { font-size: 1.5rem; }
    .poem-content { font-size: 1.1rem; }
}