/* Form Section */
.form-section {
    display: flex;
    flex-direction: column;
    align-items: center;
}

#unscramble-form {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.input-wrapper {
    position: relative;
    width: 100%;
}

#letters-input {
    width: 100%;
    padding: 1.25rem;
    font-size: 1.5rem;
    font-family: monospace;
    letter-spacing: 4px;
    background: var(--input-bg);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    color: var(--text-primary);
    outline: none;
    transition: border-color 0.3s, box-shadow 0.3s;
    text-transform: uppercase;
}

#letters-input:focus {
    border-color: var(--primary-color);
    box-shadow: var(--primary-glow);
}

.clear-btn {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 1.2rem;
    cursor: pointer;
    transition: color 0.2s;
    display: none;
}

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

#submit-btn {
    width: 100%;
    padding: 1rem;
    font-size: 1.1rem;
    font-weight: 600;
    font-family: inherit;
    background: var(--primary-gradient);
    color: var(--text-primary);
    border: none;
    border-radius: 12px;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s, background 0.3s;
    box-shadow: var(--primary-shadow-md);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
}

#submit-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: var(--primary-shadow-lg);
}

#submit-btn:disabled {
    background: #334155;
    color: #94a3b8;
    cursor: not-allowed;
    box-shadow: none;
}

/* Spinner */
.spinner {
    width: 20px;
    height: 20px;
    border: 3px solid rgba(0, 0, 0, 0.3);
    border-radius: 50%;
    border-top-color: var(--primary-color);
    animation: spin 1s ease-in-out infinite;
    display: inline-block;
}

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

/* Results Section */
.results-section {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.4s ease, transform 0.4s ease;
}

.results-section.hidden {
    opacity: 0;
    transform: translateY(20px);
    pointer-events: none;
    position: absolute;
    visibility: hidden;
}

.results-header {
    text-align: center;
    margin-bottom: 2rem;
}

.results-header h2 {
    font-weight: 600;
    margin-bottom: 0.5rem;
}

#query-display {
    color: var(--text-primary);
    font-family: monospace;
    letter-spacing: 2px;
}

#results-count {
    color: var(--text-secondary);
}

.length-group {
    margin-bottom: 2rem;
}

.length-group:last-child {
    margin-bottom: 0;
}

.length-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--glass-border);
    color: var(--text-secondary);
}

.words-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 1rem;
}

.word-card {
    background: var(--card-bg);
    border: 1px solid var(--glass-border);
    padding: 0.5rem 0.75rem;
    border-radius: 8px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-family: monospace;
    font-size: 1.1rem;
    transition: transform 0.2s, background 0.2s;
    letter-spacing: 1px;
}

.word-card:hover {
    transform: translateY(-2px);
    background: var(--primary-transparent);
    border-color: var(--primary-color);
}

.word-text {
    overflow-wrap: break-word;
    word-break: break-word;
}

.word-copy-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0.25rem;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

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

.no-results {
    text-align: center;
    color: var(--text-secondary);
    padding: 2rem 0;
    font-size: 1.1rem;
}

@media (max-width: 600px) {
    #letters-input {
        font-size: 1.25rem;
        letter-spacing: 2px;
    }
}