/* Threads Post Generator - Premium UI */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

.tpg-wrapper {
    --tpg-bg: #101010;
    --tpg-surface: #181818;
    --tpg-border: #333333;
    --tpg-text: #F3F5F7;
    --tpg-text-muted: #777777;
    --tpg-accent: #000000;
    --tpg-primary: #FFFFFF;
    --tpg-primary-hover: #E0E0E0;
    --tpg-input-bg: #222222;
    --tpg-success: #00D084;
    --tpg-error: #FF3B30;
    --tpg-radius-lg: 16px;
    --tpg-radius-md: 12px;
    --tpg-radius-sm: 8px;
    
    font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    display: flex;
    justify-content: center;
    padding: 20px 0;
    color: var(--tpg-text);
}

.tpg-wrapper * {
    box-sizing: border-box;
}

.tpg-box {
    background: var(--tpg-surface);
    border: 1px solid var(--tpg-border);
    border-radius: var(--tpg-radius-lg);
    padding: 32px;
    width: 100%;
    max-width: 500px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

.tpg-header {
    text-align: center;
    margin-bottom: 24px;
}

.tpg-header h2 {
    color: var(--tpg-text);
    margin: 0 0 8px 0;
    font-size: 24px;
    font-weight: 700;
}

.tpg-header p {
    color: var(--tpg-text-muted);
    margin: 0;
    font-size: 14px;
}

.tpg-form-group {
    margin-bottom: 20px;
    text-align: left;
}

.tpg-form-group label {
    display: block;
    margin-bottom: 8px;
    font-size: 14px;
    font-weight: 500;
    color: var(--tpg-text);
}

.tpg-form-group .required {
    color: var(--tpg-error);
}

.tpg-form-group input,
.tpg-form-group select {
    width: 100%;
    padding: 14px 16px;
    background: var(--tpg-input-bg);
    border: 1px solid var(--tpg-border);
    border-radius: var(--tpg-radius-md);
    color: var(--tpg-text);
    font-size: 16px;
    font-family: inherit;
    transition: all 0.2s ease;
    outline: none;
}

.tpg-form-group select {
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23777777' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    background-size: 16px;
    padding-right: 40px;
}

.tpg-form-group select option {
    background-color: var(--tpg-surface);
    color: var(--tpg-text);
}

.tpg-form-group input:focus,
.tpg-form-group select:focus {
    border-color: var(--tpg-text-muted);
    background: #2a2a2a;
}

.tpg-generate-btn {
    width: 100%;
    padding: 16px;
    background: var(--tpg-primary);
    color: var(--tpg-accent);
    border: none;
    border-radius: var(--tpg-radius-md);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.1s ease, background 0.2s ease;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
}

.tpg-generate-btn:hover {
    background: var(--tpg-primary-hover);
}

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

.tpg-result-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.tpg-result-header h3 {
    margin: 0;
    font-size: 16px;
    font-weight: 600;
    color: var(--tpg-text);
}

.tpg-actions {
    display: flex;
    gap: 8px;
}

.tpg-icon-btn {
    background: transparent;
    border: 1px solid var(--tpg-border);
    color: var(--tpg-text);
    padding: 6px 12px;
    border-radius: var(--tpg-radius-sm);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    font-weight: 500;
    transition: all 0.2s ease;
}

.tpg-icon-btn:hover {
    background: var(--tpg-input-bg);
    border-color: var(--tpg-text-muted);
}

.tpg-thread-preview {
    background: var(--tpg-bg);
    border: 1px solid var(--tpg-border);
    border-radius: var(--tpg-radius-md);
    overflow: hidden;
}

.tpg-thread-preview textarea {
    width: 100%;
    min-height: 200px;
    padding: 20px;
    background: transparent;
    border: none;
    color: var(--tpg-text);
    font-size: 15px;
    line-height: 1.6;
    resize: vertical;
    font-family: inherit;
    outline: none;
}

.tpg-footer-stats {
    padding: 10px 20px;
    border-top: 1px solid var(--tpg-border);
    font-size: 12px;
    color: var(--tpg-text-muted);
    text-align: right;
    background: var(--tpg-surface);
}

.tpg-notification {
    padding: 12px;
    border-radius: var(--tpg-radius-sm);
    text-align: center;
    font-size: 14px;
    font-weight: 500;
    margin-top: 16px;
    animation: fadeIn 0.3s ease;
}

.tpg-notification.success {
    background: rgba(0, 208, 132, 0.1);
    color: var(--tpg-success);
    border: 1px solid rgba(0, 208, 132, 0.2);
}

.tpg-notification.error {
    background: rgba(255, 59, 48, 0.1);
    color: var(--tpg-error);
    border: 1px solid rgba(255, 59, 48, 0.2);
}

/* Spinner */
.tpg-spinner {
    width: 20px;
    height: 20px;
    border: 3px solid rgba(0,0,0,0.2);
    border-top-color: var(--tpg-accent);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-5px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Responsive */
@media (max-width: 480px) {
    .tpg-box {
        padding: 24px 16px;
        border-radius: var(--tpg-radius-md);
        border: none;
    }
}