/* ============================================
   PROMPT BUILDER STYLES v2.0
   Place this file in: /api/styles.css
   ============================================ */

/* ---------- ROOT VARIABLES ---------- */
:root {
    --builder-bg: #faf9f7;
    --builder-card-bg: #ffffff;
    --builder-text-primary: #2c2c2c;
    --builder-text-secondary: #6b6b6b;
    --builder-border: #e8e5e0;
    --builder-accent: #c47a44;
    --builder-accent-light: #d49464;
    --builder-accent-dark: #9e5e34;
    --builder-accent-subtle: #f6ede6;
    --builder-success: #10b981;
    --builder-error: #ef4444;
    --builder-radius-sm: 12px;
    --builder-radius-md: 16px;
    --builder-radius-lg: 24px;
    --builder-shadow-sm: 0 2px 8px rgba(0,0,0,0.03);
    --builder-shadow-md: 0 8px 20px rgba(0,0,0,0.05);
    --builder-shadow-lg: 0 16px 40px rgba(0,0,0,0.08);
    --builder-transition: all 0.25s cubic-bezier(0.2, 0.9, 0.4, 1.1);
}

/* Dark Mode Support */
:root.dark {
    --builder-bg: #141414;
    --builder-card-bg: #1f1f1f;
    --builder-text-primary: #f5f5f5;
    --builder-text-secondary: #a0a0a0;
    --builder-border: #2e2e2e;
    --builder-accent: #d49464;
    --builder-accent-light: #e0a87e;
    --builder-accent-dark: #b06c44;
    --builder-accent-subtle: #2c241f;
}

/* ---------- BASE RESETS (Builder Only) ---------- */
.builder-container * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

.builder-container {
    max-width: 1024px;
    margin: 40px auto;
    padding: 0 24px;
    font-family: -apple-system, BlinkMacSystemFont, 'Inter', system-ui, sans-serif;
    background: transparent;
    color: var(--builder-text-primary);
    line-height: 1.6;
}

/* ---------- TYPOGRAPHY ---------- */
.main-title {
    font-size: 2.8rem;
    text-align: center;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
    font-weight: 800;
    line-height: 1.2;
    color: var(--builder-text-primary);
}

.main-title span {
    color: var(--builder-accent);
}

.subtitle {
    text-align: center;
    color: var(--builder-text-secondary);
    font-size: 1.05rem;
    margin-bottom: 40px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

/* ---------- CARDS ---------- */
.builder-card {
    background: var(--builder-card-bg);
    border-radius: var(--builder-radius-lg);
    border: 1px solid var(--builder-border);
    padding: 32px;
    margin-bottom: 28px;
    box-shadow: var(--builder-shadow-sm);
    transition: var(--builder-transition);
}

.builder-card:hover {
    box-shadow: var(--builder-shadow-md);
}

.step-badge {
    font-size: 1rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--builder-accent);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.step-badge span {
    background: var(--builder-accent-subtle);
    color: var(--builder-accent);
    padding: 4px 12px;
    border-radius: 30px;
    font-size: 0.7rem;
}

/* ---------- STRATEGY SELECTION CARDS ---------- */
.split-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin: 24px 0;
}

@media (max-width: 640px) {
    .split-grid {
        grid-template-columns: 1fr;
    }
}

.asset-card {
    border: 2px solid var(--builder-border);
    background: var(--builder-card-bg);
    border-radius: var(--builder-radius-lg);
    padding: 32px;
    cursor: pointer;
    transition: var(--builder-transition);
    text-align: center;
}

.asset-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--builder-shadow-lg);
}

.asset-card.selected {
    border-color: var(--builder-accent);
    background: var(--builder-accent-subtle);
}

.asset-card .icon {
    font-size: 3.5rem;
    margin-bottom: 16px;
    display: block;
}

.asset-card h3 {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--builder-text-primary);
}

.asset-card p.desc {
    font-size: 0.9rem;
    color: var(--builder-text-secondary);
    margin-bottom: 12px;
}

.asset-card .badge {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--builder-success);
    background: rgba(16, 185, 129, 0.08);
    padding: 4px 12px;
    border-radius: 30px;
}

/* ---------- INFO BANNER ---------- */
.info-banner {
    margin-top: 24px;
    padding: 20px;
    background: var(--builder-accent-subtle);
    border-radius: var(--builder-radius-md);
    text-align: center;
}

.feature-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
    margin-top: 12px;
}

.feature-chip {
    background: var(--builder-card-bg);
    padding: 6px 14px;
    border-radius: 30px;
    font-size: 0.75rem;
    font-weight: 500;
    border: 1px solid var(--builder-border);
    color: var(--builder-text-primary);
}

/* ---------- PLATFORM GRID ---------- */
.platform-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 12px;
}

.chip {
    padding: 14px;
    border: 1px solid var(--builder-border);
    border-radius: var(--builder-radius-md);
    text-align: center;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.9rem;
    transition: var(--builder-transition);
    background: var(--builder-card-bg);
    color: var(--builder-text-primary);
}

.chip:hover {
    border-color: var(--builder-accent);
    background: var(--builder-accent-subtle);
    color: var(--builder-accent);
}

.chip.selected {
    background: var(--builder-accent);
    color: white;
    border-color: var(--builder-accent);
    box-shadow: var(--builder-shadow-sm);
}

.platform-hint {
    margin-top: 14px;
    font-size: 0.85rem;
    color: var(--builder-text-secondary);
    font-style: italic;
}

/* ---------- DROPZONE ---------- */
.dropzone {
    border: 2px dashed var(--builder-border);
    border-radius: var(--builder-radius-lg);
    padding: 32px;
    text-align: center;
    cursor: pointer;
    background: var(--builder-bg);
    transition: var(--builder-transition);
}

.dropzone:hover {
    border-color: var(--builder-accent);
    background: var(--builder-accent-subtle);
}

.dropzone-icon {
    font-size: 2rem;
    margin-bottom: 12px;
}

.dropzone-hint {
    font-size: 0.7rem;
    color: var(--builder-text-secondary);
    margin-top: 8px;
}

.exif-result {
    margin-top: 16px;
    padding: 12px;
    background: var(--builder-accent-subtle);
    border-radius: var(--builder-radius-sm);
    font-size: 0.85rem;
    border-left: 3px solid var(--builder-accent);
}

/* ---------- FORM ELEMENTS ---------- */
textarea, select {
    width: 100%;
    padding: 14px;
    border: 1.5px solid var(--builder-border);
    border-radius: var(--builder-radius-md);
    font-size: 0.95rem;
    font-family: inherit;
    background: var(--builder-card-bg);
    color: var(--builder-text-primary);
    transition: var(--builder-transition);
}

textarea:focus, select:focus {
    outline: none;
    border-color: var(--builder-accent);
    box-shadow: 0 0 0 3px rgba(196, 122, 68, 0.15);
}

textarea {
    min-height: 110px;
    resize: vertical;
}

/* ---------- PARAMETER GROUPS ---------- */
.param-group {
    margin-bottom: 24px;
}

.param-label {
    font-weight: 600;
    margin-bottom: 12px;
    font-size: 0.9rem;
    color: var(--builder-text-primary);
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
}

.param-options {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.param-select-group {
    gap: 12px;
}

.param-select-group select {
    width: auto;
    min-width: 140px;
}

.param-chip {
    padding: 8px 16px;
    background: var(--builder-bg);
    border: 1px solid var(--builder-border);
    border-radius: 40px;
    font-size: 0.8rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--builder-transition);
    color: var(--builder-text-primary);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.param-chip:hover {
    background: var(--builder-accent-subtle);
    color: var(--builder-accent);
    border-color: var(--builder-accent-light);
}

.param-chip.selected {
    background: var(--builder-accent);
    color: white;
    border-color: var(--builder-accent);
}

/* ---------- STYLIZE CONTROL ---------- */
.stylize-control {
    display: flex;
    align-items: center;
    gap: 12px;
    flex: 1;
}

.stylize-control input {
    flex: 1;
}

.params-footer {
    margin-top: 28px;
    padding-top: 20px;
    border-top: 1px solid var(--builder-border);
}

/* ---------- LEGO WORKSPACE ---------- */
.lego-input {
    display: flex;
    gap: 10px;
    margin-bottom: 16px;
}

.lego-input input {
    flex: 1;
}

.lego-workspace {
    min-height: 100px;
    padding: 20px;
    background: var(--builder-bg);
    border: 2px dashed var(--builder-border);
    border-radius: var(--builder-radius-lg);
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-content: flex-start;
}

.block {
    background: var(--builder-card-bg);
    padding: 6px 14px;
    border-radius: 40px;
    border: 1px solid var(--builder-border);
    font-size: 0.85rem;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.block .remove-btn {
    cursor: pointer;
    font-weight: bold;
    color: var(--builder-text-secondary);
    margin-left: 4px;
    transition: var(--builder-transition);
}

.block .remove-btn:hover {
    color: var(--builder-error);
}

.lego-hint {
    font-size: 0.7rem;
    color: var(--builder-text-secondary);
    margin-top: 12px;
}

/* ---------- COMPILER & STATS ---------- */
.stats {
    display: flex;
    gap: 24px;
    font-size: 0.85rem;
    color: var(--builder-text-secondary);
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.stats span b {
    color: var(--builder-accent);
}

.tooltip {
    position: relative;
    cursor: help;
    border-bottom: 1px dotted var(--builder-accent);
}

.tooltip:hover::after {
    content: attr(data-tip);
    position: absolute;
    bottom: 130%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--builder-accent-dark);
    color: white;
    padding: 8px 14px;
    border-radius: var(--builder-radius-sm);
    font-size: 0.7rem;
    font-weight: normal;
    white-space: nowrap;
    z-index: 1000;
    box-shadow: var(--builder-shadow-lg);
    pointer-events: none;
}

@media (max-width: 600px) {
    .tooltip:hover::after {
        white-space: normal;
        width: 200px;
        text-align: center;
    }
}

.output-box {
    background: var(--builder-bg);
    padding: 24px;
    border-radius: var(--builder-radius-lg);
    font-family: 'SF Mono', 'Fira Code', monospace;
    font-size: 0.9rem;
    line-height: 1.6;
    min-height: 120px;
    white-space: pre-wrap;
    border: 1px solid var(--builder-border);
    word-break: break-word;
    margin: 20px 0;
}

/* ---------- BUTTONS ---------- */
.btn-main {
    background: var(--builder-accent-dark);
    color: white;
    border: none;
    padding: 16px;
    font-size: 1rem;
    font-weight: 700;
    border-radius: 60px;
    cursor: pointer;
    width: 100%;
    margin: 20px 0;
    transition: var(--builder-transition);
    min-height: 56px;
}

.btn-main:hover {
    background: #874e27;
    transform: translateY(-2px);
    box-shadow: var(--builder-shadow-md);
}

.btn-secondary {
    background: var(--builder-accent);
}

.btn-secondary:hover {
    background: var(--builder-accent-dark);
}

.btn-copy {
    flex: 1;
    padding: 12px;
    border: 1px solid var(--builder-border);
    background: var(--builder-card-bg);
    border-radius: 60px;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.9rem;
    transition: var(--builder-transition);
    text-align: center;
    color: var(--builder-text-primary);
}

.btn-copy:hover {
    border-color: var(--builder-accent);
    color: var(--builder-accent);
    background: var(--builder-accent-subtle);
}

.copy-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

/* ---------- ENHANCEMENT SECTION ---------- */
.enhance-options {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}

.enhance-options label {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--builder-bg);
    padding: 8px 16px;
    border-radius: 40px;
    cursor: pointer;
    border: 1px solid var(--builder-border);
    transition: var(--builder-transition);
}

.enhance-options label:hover {
    border-color: var(--builder-accent);
    background: var(--builder-accent-subtle);
}

.enhance-buttons {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 16px;
}

.enhance-btn {
    padding: 16px;
    border-radius: var(--builder-radius-lg);
    font-weight: 700;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--builder-transition);
    border: none;
    color: white;
}

.enhance-btn span {
    font-size: 0.7rem;
    opacity: 0.9;
    display: block;
    margin-top: 4px;
}

.enhance-btn:hover {
    transform: translateY(-3px);
    filter: brightness(1.05);
    box-shadow: var(--builder-shadow-lg);
}

.enhance-btn.claude {
    background: linear-gradient(135deg, #7c3aed 0%, #6d28d9 100%);
}

.enhance-btn.gemini {
    background: linear-gradient(135deg, #4285f4 0%, #34a853 100%);
}

.enhance-btn.grok {
    background: linear-gradient(135deg, #000000 0%, #1a1a2e 100%);
}

.enhance-note {
    font-size: 0.7rem;
    text-align: center;
    color: var(--builder-text-secondary);
}

.help-text {
    font-size: 0.85rem;
    color: var(--builder-text-secondary);
    margin-bottom: 16px;
}

/* ---------- UTILITY CLASSES ---------- */
.flow-hidden {
    display: none !important;
}

/* ---------- SEO SECTION ---------- */
.seo-guide-section {
    background: var(--builder-card-bg);
    border-top: 1px solid var(--builder-border);
    border-bottom: 1px solid var(--builder-border);
    margin-top: 60px;
}

.seo-container {
    max-width: 1024px;
    margin: 0 auto;
    padding: 48px 24px;
}

.seo-guide-section h2 {
    font-size: 2rem;
    margin-bottom: 16px;
    font-weight: 800;
    color: var(--builder-text-primary);
}

.seo-guide-section h3 {
    font-size: 1.5rem;
    margin: 32px 0 16px 0;
    color: var(--builder-accent);
}

.seo-guide-section h4 {
    font-size: 1.1rem;
    margin: 16px 0 8px;
    font-weight: 700;
}

.seo-guide-section p {
    margin-bottom: 16px;
    line-height: 1.7;
}

.seo-guide-section code {
    background: var(--builder-bg);
    padding: 2px 8px;
    border-radius: 6px;
    font-family: monospace;
    font-size: 0.85rem;
    border: 1px solid var(--builder-border);
}

.seo-guide-section .pro-tip {
    background: var(--builder-accent-subtle);
    padding: 20px;
    border-radius: var(--builder-radius-md);
    border-left: 4px solid var(--builder-accent);
    margin: 24px 0;
}

.keyword-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 12px;
    margin: 20px 0;
}

.keyword-tag {
    background: var(--builder-bg);
    padding: 8px 16px;
    border-radius: 40px;
    font-size: 0.8rem;
    border: 1px solid var(--builder-border);
    text-align: center;
}

.faq-section {
    margin-top: 32px;
}

.faq-item {
    margin-bottom: 24px;
    padding: 20px;
    background: var(--builder-bg);
    border-radius: var(--builder-radius-md);
}

.internal-links {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 32px;
    padding-top: 32px;
    border-top: 1px solid var(--builder-border);
}

.internal-links a {
    color: var(--builder-accent);
    text-decoration: none;
    font-weight: 500;
}

.internal-links a:hover {
    text-decoration: underline;
}

.seo-footer {
    text-align: center;
    font-size: 0.8rem;
    color: var(--builder-text-secondary);
    margin-top: 32px;
}

/* ---------- RESPONSIVE ---------- */
@media (max-width: 768px) {
    .builder-container {
        padding: 0 16px;
        margin: 20px auto;
    }
    
    .builder-card {
        padding: 20px;
    }
    
    .main-title {
        font-size: 1.8rem;
    }
    
    .param-select-group select {
        width: 100%;
    }
    
    .stylize-control {
        width: 100%;
        margin-top: 8px;
    }
}

@media (max-width: 480px) {
    .stats {
        flex-direction: column;
        gap: 8px;
    }
    
    .enhance-buttons {
        grid-template-columns: 1fr;
    }
}