/* Tool Specific Styles */
.tool-container {
    max-width: 900px;
    margin: 4rem auto;
    padding: 2rem;
    animation: fadeIn 0.8s ease-out;
}

.tool-header {
    text-align: center;
    margin-bottom: 3rem;
}

.tool-header h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.tool-header .back-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.875rem;
    margin-bottom: 1.5rem;
    transition: color 0.3s;
}

.tool-header .back-link:hover {
    color: var(--accent-color);
}

/* Card & Sections */
.tool-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 1.5rem;
    overflow: hidden;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

.card-header {
    padding: 1.5rem 2rem;
    border-bottom: 1px solid var(--glass-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(15, 23, 42, 0.4);
}

.card-title-group {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.icon-box {
    padding: 0.75rem;
    background: rgba(6, 182, 212, 0.1);
    border-radius: 0.75rem;
    color: var(--accent-color);
}

.card-header h2 {
    font-size: 1.5rem;
    margin: 0;
}

.card-header p {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.expression-box {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(0, 0, 0, 0.2);
    padding: 0.5rem 1rem;
    border-radius: 0.75rem;
    border: 1px solid var(--glass-border);
}

.expression-box code {
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    font-size: 1.125rem;
    color: var(--accent-color);
    font-weight: 700;
}

.copy-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0.25rem;
    transition: color 0.3s;
    display: flex;
    align-items: center;
}

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

.card-content {
    padding: 2rem;
}

/* Description Box */
.description-box {
    padding: 1.5rem;
    border-radius: 1rem;
    border-left: 4px solid var(--text-secondary);
    margin-bottom: 2rem;
    transition: all 0.3s ease;
}

.description-box.valid {
    background: rgba(6, 182, 212, 0.05);
    border-left-color: var(--accent-color);
}

.description-box.error {
    background: rgba(239, 68, 68, 0.05);
    border-left-color: #ef4444;
}

.desc-status {
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.05em;
    font-weight: 600;
    opacity: 0.6;
    margin-bottom: 0.25rem;
}

.desc-text {
    font-size: 1.25rem;
    font-weight: 600;
    line-height: 1.4;
}

/* Presets */
.section-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.preset-group {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 2.5rem;
}

.preset-badge {
    padding: 0.4rem 1rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    border-radius: 9999px;
    font-size: 0.875rem;
    cursor: pointer;
    transition: all 0.3s;
}

.preset-badge:hover {
    background: rgba(255, 255, 255, 0.1);
}

.preset-badge.active {
    background: var(--accent-color);
    color: var(--bg-color);
    border-color: var(--accent-color);
    font-weight: 600;
}

/* Tabs & Selectors */
.tabs-nav {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 0.5rem;
    background: rgba(0, 0, 0, 0.2);
    padding: 0.4rem;
    border-radius: 0.75rem;
    margin-bottom: 2rem;
}

.tab-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    padding: 0.6rem;
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: 0.5rem;
    cursor: pointer;
    transition: all 0.3s;
}

.tab-btn.active {
    background: var(--glass-bg);
    color: var(--text-primary);
}

.tab-content {
    display: none;
    animation: fadeIn 0.3s ease;
}

.tab-content.active {
    display: block;
}

.selector-row {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.selector-label {
    width: 140px;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

select, input[type="text"] {
    background: rgba(15, 23, 42, 0.5);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    padding: 0.6rem 1rem;
    border-radius: 0.5rem;
    font-size: 1rem;
    outline: none;
    transition: border-color 0.3s;
}

select:focus, input[type="text"]:focus {
    border-color: var(--accent-color);
}

.badge-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
}

.selectable-badge {
    padding: 0.4rem 0.8rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--glass-border);
    border-radius: 0.5rem;
    font-size: 0.8rem;
    cursor: pointer;
    transition: all 0.2s;
}

.selectable-badge:hover {
    border-color: var(--accent-color);
}

.selectable-badge.active {
    background: var(--accent-color);
    color: var(--bg-color);
    border-color: var(--accent-color);
    font-weight: 600;
}

/* Manual Expression */
.manual-section {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--glass-border);
}

.manual-input-wrapper {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.manual-input-wrapper input {
    width: 100%;
    font-family: 'JetBrains Mono', monospace;
    font-size: 1.25rem;
    padding: 1rem;
    background: rgba(0, 0, 0, 0.3);
}

.manual-help {
    font-size: 0.75rem;
    color: var(--text-secondary);
    opacity: 0.6;
}

/* SEO Info Cards */
.info-section {
    margin-top: 6rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.info-card h3 {
    font-size: 1.75rem;
    margin-bottom: 1.5rem;
}

.benefit-list {
    list-style: none;
}

.benefit-list li {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1.25rem;
    color: var(--text-secondary);
}

.benefit-icon {
    margin-top: 0.25rem;
}

.cta-promo {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    padding: 2.5rem;
    border-radius: 1.5rem;
    text-align: center;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 1.5rem;
}

.cta-promo h3 {
    margin: 0;
}

.cta-promo p {
    color: var(--text-secondary);
}

.cta-promo .btn {
    width: 100%;
}

.secondary-link {
    font-size: 0.9rem;
    color: var(--text-secondary);
    text-decoration: none;
}

.secondary-link:hover {
    text-decoration: underline;
}

/* Responsive */
@media (max-width: 768px) {
    .info-section {
        grid-template-columns: 1fr;
    }
    
    .tabs-nav {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .selector-row {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
    
    .selector-label {
        width: auto;
    }
    
    select {
        width: 100%;
    }
}