/* (Existing styles from style.css) */
:root {
    --primary: #007bff;
    --secondary: #2c3e50;
    --background: #f8f9fa;
    --text: #333;
    --text-muted: #666;
    --card-bg: #fff;
    --container-max: 1200px;
    --shadow: 0 4px 6px rgba(0,0,0,0.05);
    --shadow-hover: 0 15px 30px rgba(0,0,0,0.1);
    --border: #e2e8f0;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; line-height: 1.6; color: var(--text); background-color: var(--background); }
.container { max-width: var(--container-max); margin: 0 auto; padding: 0 20px; }
.text-center { text-align: center; }
.text-left { text-align: left; }

header { background: #fff; box-shadow: 0 2px 5px rgba(0,0,0,0.05); padding: 15px 0; position: sticky; top: 0; z-index: 1000; }
nav { display: flex; justify-content: space-between; align-items: center; gap: 20px; }
.logo a { font-size: 1.5rem; font-weight: 800; color: var(--primary); text-decoration: none; letter-spacing: -0.5px; }

.nav-search-container { flex-grow: 1; position: relative; max-width: 400px; }
.nav-search-icon { position: absolute; left: 12px; top: 50%; transform: translateY(-50%); color: var(--text-muted); pointer-events: none; }
.nav-search-container input { width: 100%; padding: 10px 10px 10px 35px; border: 1px solid var(--border); border-radius: 20px; background: #f1f5f9; transition: border-color 0.2s; }
.nav-search-container input:focus { border-color: var(--primary); outline: none; background: #fff; }

.nav-links { list-style: none; display: flex; gap: 20px; }
.nav-links a { text-decoration: none; color: var(--text); font-weight: 600; font-size: 0.95rem; }
.nav-links a:hover, .nav-links a.active { color: var(--primary); }

.btn { display: inline-block; padding: 10px 20px; border-radius: 6px; text-decoration: none; font-weight: 700; cursor: pointer; border: none; transition: all 0.2s; }
.btn-primary { background-color: var(--primary); color: #fff; box-shadow: 0 4px 10px rgba(0,123,255,0.3); }
.btn-primary:hover { background-color: #0056b3; transform: translateY(-1px); }
.btn-secondary { background-color: var(--secondary); color: #fff; }
.btn-outline { border: 1.5px solid var(--primary); color: var(--primary); background: transparent; }
.btn-outline:hover { background-color: var(--primary); color: #fff; }

.hero { background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%); color: #fff; padding: 120px 0; text-align: center; }
.hero h1 { font-size: 4rem; margin-bottom: 20px; font-weight: 900; letter-spacing: -2px; }
.hero p { font-size: 1.5rem; margin-bottom: 40px; opacity: 0.8; }

.section-card { background: #fff; border-radius: 12px; padding: 30px; box-shadow: var(--shadow); margin-bottom: 30px; border: 1px solid #edf2f7; }
.section-card h2 { font-size: 1.5rem; margin-bottom: 20px; border-bottom: 2px solid #f1f5f9; padding-bottom: 10px; color: var(--secondary); }

.marketplace-header { padding: 40px 0; text-align: center; }
.marketplace-layout { display: flex; gap: 40px; margin-bottom: 60px; }
.sidebar { width: 220px; flex-shrink: 0; }
.filter-group { margin-bottom: 30px; }
.filter-group h3 { margin-bottom: 15px; font-size: 1rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 1px; }
.filter-group ul { list-style: none; }
.filter-group li { margin-bottom: 10px; }
.filter-group a { text-decoration: none; color: var(--text); font-size: 0.95rem; font-weight: 500; display: block; padding: 8px 12px; border-radius: 6px; }
.filter-group a:hover, .filter-group a.active { background: #ebf8ff; color: var(--primary); font-weight: 700; }

.api-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 25px; }
.api-card { background: #fff; padding: 30px; border-radius: 16px; box-shadow: var(--shadow); transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1); position: relative; border: 1px solid #edf2f7; }
.api-card:hover { transform: translateY(-10px); box-shadow: var(--shadow-hover); border-color: var(--primary); }
.api-badge { position: absolute; top: 20px; right: 20px; font-size: 0.7rem; padding: 3px 10px; border-radius: 20px; font-weight: 800; text-transform: uppercase; }
.badge-free { background: #def7ec; color: #03543f; }
.badge-paid { background: #fde8e8; color: #9b1c1c; }
.api-icon { font-size: 3rem; margin-bottom: 20px; display: inline-block; padding: 15px; background: #f8fafc; border-radius: 12px; }
.api-card h3 { margin-bottom: 10px; font-size: 1.4rem; font-weight: 800; color: #1e293b; }
.api-category { color: var(--primary); font-size: 0.8rem; font-weight: 800; text-transform: uppercase; margin-bottom: 12px; letter-spacing: 0.5px; }
.api-card p { color: var(--text-muted); font-size: 0.95rem; margin-bottom: 25px; min-height: 3em; }

.api-details-header { display: flex; gap: 40px; padding: 80px 0; align-items: center; border-bottom: 1px solid var(--border); margin-bottom: 40px; }
.api-details-icon { font-size: 5rem; width: 140px; height: 140px; display: flex; align-items: center; justify-content: center; background: #fff; border-radius: 24px; box-shadow: var(--shadow); border: 1px solid #edf2f7; }
.endpoint-block { background: #0f172a; color: #e2e8f0; padding: 18px; border-radius: 10px; font-family: 'Fira Code', monospace; display: flex; gap: 15px; align-items: center; margin-bottom: 20px; box-shadow: inset 0 2px 4px rgba(0,0,0,0.3); }
.method-badge { padding: 5px 12px; border-radius: 6px; font-weight: 800; font-size: 0.75rem; color: #fff; text-transform: uppercase; }
.badge-get { background: #2563eb; }
.badge-post { background: #059669; }

.try-it-form input { background: #f8fafc; border: 1px solid var(--border); transition: all 0.2s; }
.try-it-form input:focus { border-color: var(--primary); background: #fff; box-shadow: 0 0 0 3px rgba(0,123,255,0.1); outline: none; }

footer { background: #0f172a; color: #94a3b8; padding: 60px 0; border-top: 1px solid #1e293b; }
footer .logo a { color: #fff; }
.footer-bottom { margin-top: 40px; padding-top: 20px; border-top: 1px solid #1e293b; font-size: 0.9rem; }

@media (max-width: 992px) {
    .hero h1 { font-size: 3rem; }
    .marketplace-layout, .details-grid { grid-template-columns: 1fr; }
    .sidebar { width: 100%; display: flex; gap: 20px; overflow-x: auto; padding-bottom: 20px; }
    .sidebar .filter-group { flex-shrink: 0; min-width: 150px; }
}

.form-group { margin-bottom: 20px; text-align: left; }
.form-group label { display: block; margin-bottom: 8px; font-weight: 600; }
.form-group input, .form-group textarea { width: 100%; padding: 12px; border: 1px solid var(--border); border-radius: 8px; background: #fff; font-family: inherit; font-size: 1rem; }
.form-group input:focus, .form-group textarea:focus { border-color: var(--primary); outline: none; box-shadow: 0 0 0 3px rgba(0,123,255,0.1); }

.params-table { width: 100%; border-collapse: collapse; margin-top: 20px; }
.params-table th, .params-table td { padding: 15px; border-bottom: 1px solid var(--border); text-align: left; }
.params-table th { background: #f8fafc; font-weight: 700; color: var(--secondary); }
.params-table tr:hover { background: #f1f5f9; }

.response-block { background: #1e293b; color: #38bdf8; padding: 20px; border-radius: 10px; overflow-x: auto; font-family: 'Fira Code', monospace; font-size: 0.9rem; border: 1px solid #334155; }