/* BoostSuite - Modern Dark Theme */
:root {
    --bg-primary: #0a0a0a;
    --bg-secondary: #1a1a2e;
    --bg-card: #1a1a2e;
    --bg-card-hover: #222240;
    --bg-input: #2d2d44;
    --bg-button: #3b82f6;
    --bg-button-hover: #2563eb;
    --bg-modal: rgba(0,0,0,0.85);
    --text-primary: #ffffff;
    --text-secondary: #b0b0d0;
    --text-muted: #8888aa;
    --accent-blue: #3b82f6;
    --accent-green: #10b981;
    --accent-yellow: #f59e0b;
    --accent-red: #ef4444;
    --border-color: #2d2d44;
    --border-radius: 12px;
    --shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
    --shadow-light: 0 5px 15px rgba(0, 0, 0, 0.3);
    --gradient: linear-gradient(135deg, #3b82f6, #8b5cf6);
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

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

html {
    font-size: 16px;
}

body {
    font-family: var(--font-sans);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1.5rem;
}

/* Header */
.header {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.logo h1 {
    font-size: 2.2rem;
    font-weight: 800;
    margin-bottom: 0.25rem;
}

.logo .gradient {
    background: var(--gradient);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.tagline {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.nav-tabs {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin: 1rem 0;
}

.tab {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--border-radius);
    background: var(--bg-secondary);
    color: var(--text-secondary);
    font-family: inherit;
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.tab:hover {
    background: var(--bg-card-hover);
    color: var(--text-primary);
    transform: translateY(-2px);
}

.tab.active {
    background: var(--bg-button);
    color: white;
    box-shadow: var(--shadow-light);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.upgrade-btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--border-radius);
    background: var(--gradient);
    color: white;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.upgrade-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.usage {
    background: var(--bg-secondary);
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.usage #usageCount {
    color: var(--accent-yellow);
    font-weight: 700;
}

/* Main */
.main {
    margin-bottom: 3rem;
}

.tool-card {
    display: none;
    background: var(--bg-card);
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    animation: fadeIn 0.3s ease;
}

.tool-card.active {
    display: block;
}

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

.tool-header h2 {
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.tool-header p {
    color: var(--text-secondary);
    font-size: 1rem;
}

.tool-body {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    flex: 1;
}

.input-group label {
    font-weight: 600;
    color: var(--text-primary);
}

.input-group input,
.input-group select,
.input-group textarea {
    padding: 0.9rem 1rem;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    background: var(--bg-input);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 1rem;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.input-group input:focus,
.input-group select:focus,
.input-group textarea:focus {
    outline: none;
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.3);
}

.input-group textarea {
    resize: vertical;
}

.input-row {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn-primary {
    align-self: flex-start;
    padding: 1rem 2rem;
    border: none;
    border-radius: var(--border-radius);
    background: var(--bg-button);
    color: white;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    transition: background 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.btn-primary:hover {
    background: var(--bg-button-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-light);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-secondary {
    padding: 0.75rem 1.5rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    background: transparent;
    color: var(--text-secondary);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-secondary:hover {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

/* Result Container */
.result-container {
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    padding: 2rem;
    border: 1px solid var(--border-color);
    min-height: 200px;
    transition: all 0.3s ease;
}

.placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    height: 150px;
    gap: 1rem;
}

.placeholder i {
    font-size: 3rem;
    opacity: 0.5;
}

.result-content {
    animation: fadeIn 0.5s ease;
}

.result-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.result-score {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--accent-green);
}

.result-score.low {
    color: var(--accent-red);
}

.result-score.medium {
    color: var(--accent-yellow);
}

.score-gauge {
    width: 100%;
    height: 12px;
    background: var(--bg-input);
    border-radius: 6px;
    overflow: hidden;
    margin: 1rem 0;
}

.score-fill {
    height: 100%;
    background: var(--gradient);
    border-radius: 6px;
    transition: width 1s ease;
}

.result-list {
    list-style: none;
    margin-top: 1.5rem;
}

.result-list li {
    padding: 0.75rem 1rem;
    border-left: 3px solid var(--accent-blue);
    background: rgba(59, 130, 246, 0.1);
    margin-bottom: 0.5rem;
    border-radius: 0 8px 8px 0;
}

.copy-btn {
    margin-top: 1rem;
    padding: 0.5rem 1rem;
    border: 1px solid var(--accent-blue);
    border-radius: var(--border-radius);
    background: transparent;
    color: var(--accent-blue);
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.2s ease;
}

.copy-btn:hover {
    background: rgba(59, 130, 246, 0.1);
}

/* Footer */
.footer {
    border-top: 1px solid var(--border-color);
    padding-top: 2rem;
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.footer p {
    margin-bottom: 0.5rem;
}

#live-status {
    color: var(--accent-green);
    font-weight: bold;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
    margin-top: 1rem;
}

.footer-link {
    color: var(--text-secondary);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: color 0.2s ease;
}

.footer-link:hover {
    color: var(--accent-blue);
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-modal);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.3s ease;
}

.modal-content {
    background: var(--bg-card);
    border-radius: var(--border-radius);
    padding: 3rem;
    max-width: 500px;
    width: 90%;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    text-align: center;
}

.modal-content h2 {
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
}

.modal-content p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.5;
}

.modal-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

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

/* Loading Spinner */
.loader {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255,255,255,0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 1s ease-in-out infinite;
}

/* Responsive */
@media (max-width: 900px) {
    .header {
        flex-direction: column;
        align-items: flex-start;
    }
    .nav-tabs {
        width: 100%;
    }
    .tab {
        flex: 1;
        justify-content: center;
    }
    .header-actions {
        width: 100%;
        justify-content: space-between;
        margin-top: 1rem;
    }
    .input-row {
        flex-direction: column;
        gap: 1rem;
    }
}

@media (max-width: 600px) {
    .container {
        padding: 1rem;
    }
    .tool-card {
        padding: 1.5rem;
    }
    .modal-content {
        padding: 2rem;
    }
    .footer-links {
        flex-direction: column;
        gap: 1rem;
    }
}

/* Language Selector */
.lang-select {
    padding: 0.5rem 0.75rem;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.9rem;
    cursor: pointer;
}

.lang-select:focus {
    outline: none;
    border-color: var(--accent-blue);
}

/* Toast */
.toast {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: var(--accent-green);
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    font-weight: 600;
    box-shadow: var(--shadow);
    transform: translateY(20px);
    opacity: 0;
    transition: all 0.3s ease;
    z-index: 2000;
}

.toast.show {
    transform: translateY(0);
    opacity: 1;
}

/* Pricing Section */
.pricing-section {
    margin: 3rem 0;
    padding: 2.5rem;
    background: var(--bg-card);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}

.pricing-section h2 {
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
    text-align: center;
}

.pricing-subtitle {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    font-size: 1.05rem;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    max-width: 960px;
    margin: 0 auto;
}

.pricing-card {
    padding: 2rem;
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    text-align: center;
    position: relative;
    transition: border-color 0.2s ease, transform 0.2s ease;
}

.pricing-card:hover {
    transform: translateY(-2px);
}

.pricing-starter {
    border-color: var(--accent-green, #10b981);
    box-shadow: 0 0 20px rgba(16, 185, 129, 0.12);
}

.pricing-starter:hover {
    border-color: var(--accent-blue);
}

.pricing-pro {
    border-color: var(--accent-blue);
    box-shadow: 0 0 20px rgba(59, 130, 246, 0.15);
}

.pricing-pro:hover {
    border-color: var(--accent-purple);
}

.pricing-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
    color: white;
    padding: 0.25rem 1rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    white-space: nowrap;
}

.pricing-card h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
}

.pricing-price {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.pricing-price span {
    font-size: 1rem;
    font-weight: 400;
    color: var(--text-secondary);
}

.pricing-period {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
}

.pricing-features {
    list-style: none;
    padding: 0;
    margin: 1.5rem 0;
    text-align: left;
}

.pricing-features li {
    padding: 0.5rem 0;
    color: var(--text-secondary);
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.pricing-features li i {
    color: var(--accent-green);
    font-size: 0.85rem;
    width: 18px;
    text-align: center;
}

.pricing-btn {
    width: 100%;
    justify-content: center;
    margin-top: 0.5rem;
    text-decoration: none;
}

/* FAQ Section */
.faq-section {
    margin: 3rem 0;
    padding: 2.5rem;
    background: var(--bg-card);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}

.faq-section h2 {
    font-size: 1.8rem;
    margin-bottom: 2rem;
    text-align: center;
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1.5rem;
}

.faq-item {
    padding: 1.5rem;
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    transition: border-color 0.2s ease;
}

.faq-item:hover {
    border-color: var(--accent-blue);
}

.faq-item h3 {
    font-size: 1.05rem;
    margin-bottom: 0.75rem;
    color: var(--accent-blue);
}

.faq-item p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* Footer */
.footer {
    margin-top: 3rem;
    border-top: 1px solid var(--border-color);
    padding-top: 2rem;
}

.footer-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.footer-brand h3 {
    font-size: 1.4rem;
    margin-bottom: 0.25rem;
}

.footer-brand p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

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

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    transition: color 0.2s ease;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
    color: var(--text-muted);
    font-size: 0.85rem;
}

.footer-bottom p {
    margin-bottom: 0.25rem;
}

/* Result Details Table */
.result-details {
    margin: 1.5rem 0;
}

.result-details h4 {
    margin-bottom: 1rem;
}

.detail-table {
    width: 100%;
    border-collapse: collapse;
}

.detail-table td {
    padding: 0.6rem 1rem;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.9rem;
}

.detail-table td:first-child {
    color: var(--text-secondary);
    width: 40%;
    font-weight: 500;
}

.detail-table td:last-child {
    color: var(--text-primary);
    word-break: break-all;
}

/* Variation Cards */
.variation-card {
    margin: 1.5rem 0;
    padding: 1.5rem;
    background: var(--bg-card);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}

.variation-card h4 {
    margin-bottom: 1rem;
    color: var(--accent-blue);
}

.variation-card pre {
    white-space: pre-wrap;
    word-wrap: break-word;
    font-family: var(--font-sans);
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--text-primary);
    margin: 0;
}

/* Result Fields */
.result-field {
    margin: 1.5rem 0;
}

.result-field h4 {
    margin-bottom: 0.75rem;
    color: var(--text-secondary);
}

.field-box {
    padding: 1rem;
    background: var(--bg-input);
    border-radius: var(--border-radius);
    font-size: 0.95rem;
    line-height: 1.6;
    white-space: pre-wrap;
    word-wrap: break-word;
}

.tags-wrap {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 0.5rem;
}

.tag {
    background: var(--accent-blue);
    color: white;
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
}

/* Responsive FAQ + Footer */
@media (max-width: 768px) {
    .faq-section {
        padding: 1.5rem;
    }
    .faq-grid {
        grid-template-columns: 1fr;
    }
    .footer-top {
        flex-direction: column;
        text-align: center;
    }
}