/* ===== Reset & Variables ===== */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}

:root{
    --primary:#1a5c35;
    --primary-light:#2d8a52;
    --accent:#3b82f6;
    --text:#f1f5f9;
    --text-secondary:#94a3b8;
    --text-muted:#64748b;
    --bg:#0a0a0a;
    --bg-alt:#111111;
    --bg-card:#161616;
    --border:#1e1e1e;
    --border-light:#2a2a2a;
    --radius:0.5rem;
    --radius-lg:0.75rem;
    --shadow:0 1px 3px rgba(0,0,0,.4);
    --shadow-md:0 4px 12px rgba(0,0,0,.5);
    --shadow-lg:0 12px 32px rgba(0,0,0,.6);
    --transition:0.2s ease;
    --font:'Inter',system-ui,-apple-system,sans-serif;
    --mono:'JetBrains Mono','Fira Code',monospace;
}

html{scroll-behavior:smooth;scroll-padding-top:5rem}
body{font-family:var(--font);color:var(--text);background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:var(--primary-light);text-decoration:none}
a:hover{color:#fff}
code{font-family:var(--mono);font-size:.875em;background:var(--bg-alt);padding:.15em .4em;border-radius:4px;border:1px solid var(--border-light)}

.container{max-width:1140px;margin:0 auto;padding:0 1.5rem}

/* ===== Navbar ===== */
.navbar{
    position:sticky;top:0;z-index:100;
    background:rgba(10,10,10,.95);
    backdrop-filter:blur(12px);
    border-bottom:1px solid var(--border);
}
.nav-container{display:flex;align-items:center;justify-content:space-between;height:4rem}
.nav-brand{display:flex;align-items:center;gap:.5rem;font-weight:700;font-size:1.25rem;color:var(--text)}
.brand-icon{
    display:inline-flex;align-items:center;justify-content:center;
    width:2rem;height:2rem;border-radius:.5rem;
    background:var(--primary);color:#fff;font-weight:800;font-size:.875rem;
}
.nav-menu{display:flex;align-items:center;gap:2rem}
.nav-link{color:var(--text-secondary);font-weight:500;font-size:.9rem;transition:color var(--transition)}
.nav-link:hover{color:var(--primary-light)}

.hamburger{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:.5rem}
.hamburger span{display:block;width:22px;height:2px;background:var(--text);border-radius:2px;transition:var(--transition)}

/* ===== Buttons ===== */
.btn{
    display:inline-flex;align-items:center;gap:.5rem;
    padding:.75rem 1.5rem;border-radius:var(--radius);
    font-weight:600;font-size:.9rem;border:none;cursor:pointer;
    transition:all var(--transition);text-decoration:none;
}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-light);transform:translateY(-1px);box-shadow:var(--shadow-md)}
.btn-outline{background:transparent;color:var(--text);border:1.5px solid var(--border-light)}
.btn-outline:hover{border-color:var(--primary);color:var(--primary-light)}
.btn-outline-light{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.3)}
.btn-outline-light:hover{background:rgba(255,255,255,.1);border-color:#fff}
.btn-lg{padding:1rem 2rem;font-size:1rem}
.btn-sm{padding:.5rem 1rem;font-size:.85rem}
.btn-block{width:100%;justify-content:center}

/* ===== Hero ===== */
.hero{padding:5rem 0 4rem;background:var(--bg)}
.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:4rem;align-items:center}
.hero-badge{
    display:inline-block;padding:.35rem .9rem;border-radius:2rem;
    background:rgba(26,92,53,.2);color:var(--primary-light);
    font-size:.8rem;font-weight:600;margin-bottom:1.5rem;
    border:1px solid var(--primary);
}
.hero h1{font-size:3.25rem;font-weight:800;line-height:1.12;margin-bottom:1.25rem;color:#fff}
.gradient-text{
    background:linear-gradient(135deg,var(--primary-light),#4ade80);
    -webkit-background-clip:text;-webkit-text-fill-color:transparent;
    background-clip:text;
}
.hero-subtitle{font-size:1.15rem;color:var(--text-secondary);line-height:1.7;margin-bottom:2rem;max-width:520px}
.hero-actions{display:flex;gap:1rem;flex-wrap:wrap;margin-bottom:3rem}
.hero-stats{display:flex;gap:2.5rem}
.hero-stat{display:flex;flex-direction:column}
.hero-stat strong{font-size:1.35rem;font-weight:800;color:#fff}
.hero-stat span{font-size:.8rem;color:var(--text-muted)}

/* Code Window */
.code-window{border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-lg);border:1px solid var(--border-light)}
.code-header{
    display:flex;align-items:center;gap:1rem;
    padding:.75rem 1rem;background:#0d0d0d;border-bottom:1px solid var(--border-light);
}
.code-dots{display:flex;gap:6px}
.code-dots span{width:10px;height:10px;border-radius:50%}
.code-dots span:nth-child(1){background:#ef4444}
.code-dots span:nth-child(2){background:#f59e0b}
.code-dots span:nth-child(3){background:#22c55e}
.code-title{color:#94a3b8;font-size:.75rem;font-weight:500}
.code-body{
    background:#0d0d0d;color:#e2e8f0;
    padding:1.5rem;margin:0;overflow-x:auto;
    font-family:var(--mono);font-size:.8rem;line-height:1.7;
}
.c-keyword{color:#60a5fa}
.c-string{color:#4ade80}
.c-comment{color:#64748b}
.c-key{color:#c084fc}

/* ===== Sections ===== */
.section{padding:5rem 0}
.section-alt{background:var(--bg-alt)}
.section-header{text-align:center;margin-bottom:3.5rem}
.section-header h2{font-size:2.25rem;font-weight:800;margin-bottom:.75rem;color:#fff}
.section-header p{font-size:1.1rem;color:var(--text-secondary);max-width:600px;margin:0 auto}

/* ===== Features ===== */
.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:2rem}
.feature-card{
    padding:2rem;border-radius:var(--radius-lg);
    border:1px solid var(--border);background:var(--bg-card);
    transition:all var(--transition);
}
.feature-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:var(--primary)}
.feature-icon{
    display:flex;align-items:center;justify-content:center;
    width:3rem;height:3rem;border-radius:var(--radius);
    background:rgba(26,92,53,.2);color:var(--primary-light);
    font-size:1.25rem;margin-bottom:1.25rem;
}
.feature-card h3{font-size:1.1rem;font-weight:700;margin-bottom:.5rem;color:#fff}
.feature-card p{font-size:.9rem;color:var(--text-secondary);line-height:1.6}

/* ===== Data Grid ===== */
.data-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:2rem}
.data-group{
    padding:2rem;border-radius:var(--radius-lg);
    background:var(--bg-card);border:1px solid var(--border);
}
.data-group h3{display:flex;align-items:center;gap:.75rem;font-size:1.05rem;font-weight:700;margin-bottom:1rem;color:var(--primary-light)}
.data-group ul{list-style:none;display:flex;flex-direction:column;gap:.4rem}
.data-group li{font-size:.9rem;color:var(--text-secondary);padding:.3rem 0;padding-left:1.25rem;position:relative}
.data-group li::before{content:"";position:absolute;left:0;top:.65rem;width:6px;height:6px;border-radius:50%;background:var(--primary)}

/* ===== Documentation ===== */
.docs-category{margin-top:3rem;margin-bottom:1.5rem}
.docs-category:first-of-type{margin-top:0}
.docs-category-title{display:flex;align-items:center;gap:.75rem;font-size:1.25rem;font-weight:700;color:#fff}
.docs-category-title i{color:var(--primary-light)}
.docs-category-desc{margin-top:.5rem;font-size:.95rem;color:var(--text-secondary)}

.endpoint-card{
    border:1px solid var(--border);border-radius:var(--radius);
    margin-bottom:.75rem;overflow:hidden;background:var(--bg-card);
}
.endpoint-header{
    display:flex;align-items:center;justify-content:space-between;
    padding:1rem 1.25rem;cursor:pointer;
    transition:background var(--transition);
}
.endpoint-header:hover{background:var(--bg-alt)}
.endpoint-info{display:flex;align-items:center;gap:.75rem;flex-wrap:wrap}
.endpoint-desc{color:var(--text-secondary);font-size:.85rem}
.endpoint-toggle{color:var(--text-muted);font-size:.75rem;transition:transform var(--transition)}
.endpoint-card.open .endpoint-toggle{transform:rotate(180deg)}

.endpoint-body{
    display:none;padding:1.25rem;
    border-top:1px solid var(--border);background:var(--bg-alt);
}
.endpoint-card.open .endpoint-body{display:block}
.endpoint-section{margin-bottom:1.25rem}
.endpoint-section:last-child{margin-bottom:0}
.endpoint-section h4{font-size:.85rem;font-weight:700;color:#fff;margin-bottom:.5rem;text-transform:uppercase;letter-spacing:.03em}
.endpoint-note{
    font-size:.85rem;color:var(--text-secondary);
    padding:.75rem 1rem;background:rgba(26,92,53,.15);
    border-radius:var(--radius);border-left:3px solid var(--primary);margin-top:.75rem;
}

.method{
    display:inline-block;padding:.2rem .6rem;border-radius:4px;
    font-weight:700;font-size:.7rem;text-transform:uppercase;
    font-family:var(--mono);letter-spacing:.03em;
}
.method.get{background:rgba(34,197,94,.15);color:#22c55e}
.method.post{background:rgba(96,165,250,.15);color:#60a5fa}
.method.put{background:rgba(251,191,36,.15);color:#fbbf24}
.method.delete{background:rgba(239,68,68,.15);color:#ef4444}

.param-table{width:100%;border-collapse:collapse;font-size:.85rem;margin-bottom:.75rem}
.param-table td{padding:.5rem .75rem;border-bottom:1px solid var(--border)}
.param-table td:first-child{font-weight:600;white-space:nowrap;color:#fff}
.param-table td:nth-child(2){color:var(--text-muted);white-space:nowrap}
.param-table td:nth-child(3){white-space:nowrap;font-size:.8rem;color:var(--primary-light)}

.code-inline{
    background:#0d0d0d;color:#e2e8f0;
    padding:1.25rem;border-radius:var(--radius);
    overflow-x:auto;font-family:var(--mono);
    font-size:.8rem;line-height:1.7;margin:.5rem 0;
}
.code-inline code{background:none;border:none;padding:0;font-size:inherit;color:inherit}

/* Tabs */
.examples-tabs{display:flex;gap:.5rem;margin-bottom:0}
.tab-btn{
    padding:.6rem 1.25rem;border:1px solid var(--border);
    border-bottom:none;border-radius:var(--radius) var(--radius) 0 0;
    background:var(--bg-alt);cursor:pointer;font-weight:600;
    font-size:.85rem;color:var(--text-secondary);transition:all var(--transition);
}
.tab-btn.active{background:var(--bg-card);color:var(--primary-light);border-color:var(--primary);border-bottom:1px solid var(--bg-card)}
.tab-content{display:none;border:1px solid var(--border);border-radius:0 var(--radius) var(--radius) var(--radius);overflow:hidden}
.tab-content.active{display:block}
.tab-content .code-inline{margin:0;border-radius:0}

/* Error table */
.error-table-wrapper{overflow-x:auto}
.error-table{width:100%;border-collapse:collapse;font-size:.9rem}
.error-table th{text-align:left;padding:.75rem 1rem;background:var(--bg-alt);border-bottom:2px solid var(--border);font-weight:700;color:#fff}
.error-table td{padding:.75rem 1rem;border-bottom:1px solid var(--border);color:var(--text-secondary)}

/* ===== Pricing ===== */
.pricing-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:2rem;max-width:750px;margin:0 auto}
.pricing-card{
    padding:2.5rem;border-radius:var(--radius-lg);
    border:1px solid var(--border);background:var(--bg-card);
    position:relative;transition:all var(--transition);
}
.pricing-card:hover{box-shadow:var(--shadow-md)}
.pricing-card.featured{border-color:var(--primary);box-shadow:var(--shadow-md)}
.pricing-card.featured::before{
    content:'';position:absolute;top:0;left:0;right:0;height:4px;
    background:linear-gradient(90deg,var(--primary),var(--primary-light));border-radius:var(--radius-lg) var(--radius-lg) 0 0;
}
.pricing-badge{font-size:.7rem;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--primary-light);margin-bottom:.5rem}
.pricing-card h3{font-size:1.35rem;font-weight:700;margin-bottom:.5rem;color:#fff}
.pricing-price{display:flex;align-items:baseline;gap:.15rem;margin-bottom:.5rem}
.price-currency{font-size:1.1rem;font-weight:600;color:var(--text-secondary)}
.price-value{font-size:2.75rem;font-weight:800;color:#fff}
.price-period{font-size:.9rem;color:var(--text-muted);margin-left:.25rem}
.pricing-desc{font-size:.9rem;color:var(--text-secondary);margin-bottom:1.5rem}
.pricing-features{list-style:none;display:flex;flex-direction:column;gap:.6rem;margin-bottom:2rem}
.pricing-features li{display:flex;align-items:flex-start;gap:.6rem;font-size:.9rem;color:var(--text-secondary)}
.pricing-features i{color:var(--primary-light);margin-top:.2rem;font-size:.8rem}
.pricing-note{text-align:center;margin-top:2rem;font-size:.85rem;color:var(--text-muted)}
.pricing-note i{color:var(--primary-light)}

/* ===== Rate Limits ===== */
.rate-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1.5rem}
.rate-card{
    text-align:center;padding:2rem 1.5rem;
    border-radius:var(--radius-lg);border:1px solid var(--border);
    background:var(--bg-card);
}
.rate-value{font-size:2.5rem;font-weight:800;color:var(--primary-light)}
.rate-label{font-size:.8rem;color:var(--text-muted);font-weight:600;text-transform:uppercase;letter-spacing:.05em;margin-bottom:.5rem}
.rate-desc{font-size:.9rem;color:var(--text-secondary)}

/* ===== FAQ ===== */
.faq-list{max-width:740px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--border)}
.faq-question{
    display:flex;align-items:center;justify-content:space-between;
    width:100%;padding:1.25rem 0;background:none;border:none;
    cursor:pointer;font-size:1rem;font-weight:600;color:#fff;
    text-align:left;font-family:var(--font);
}
.faq-question i{color:var(--text-muted);font-size:.75rem;transition:transform var(--transition)}
.faq-item.open .faq-question i{transform:rotate(180deg)}
.faq-answer{
    display:none;padding-bottom:1.25rem;
    font-size:.95rem;color:var(--text-secondary);line-height:1.7;
}
.faq-item.open .faq-answer{display:block}

/* ===== CTA ===== */
.cta-section{
    background:linear-gradient(135deg,var(--primary) 0%,#0d3319 100%);
    color:#fff;
}
.cta-content{text-align:center;max-width:600px;margin:0 auto}
.cta-content h2{font-size:2.25rem;font-weight:800;margin-bottom:1rem}
.cta-content p{font-size:1.1rem;color:rgba(255,255,255,.8);margin-bottom:2rem}
.cta-actions{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap}

/* ===== Footer ===== */
.footer{background:#050505;color:#e2e8f0;padding:4rem 0 1.5rem;border-top:1px solid var(--border)}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:3rem;margin-bottom:3rem}
.footer-brand{display:flex;flex-direction:column;gap:.75rem}
.footer-brand .brand-icon{flex-shrink:0}
.footer-name{font-size:1.25rem;font-weight:700}
.footer-brand p{font-size:.85rem;color:#94a3b8;max-width:320px;line-height:1.6}
.footer-links{display:flex;flex-direction:column;gap:.5rem}
.footer-links h4{font-weight:700;font-size:.85rem;text-transform:uppercase;letter-spacing:.06em;color:#94a3b8;margin-bottom:.5rem}
.footer-links a{color:#cbd5e1;font-size:.9rem;transition:color var(--transition)}
.footer-links a:hover{color:#fff}
.footer-bottom{border-top:1px solid var(--border);padding-top:1.5rem;text-align:center;font-size:.8rem;color:#64748b}

/* ===== Cognivm Badge ===== */
.cognivm-badge{
    display:inline-flex;
    align-items:center;
    gap:.5rem;
    padding:.5rem 1rem;
    background:var(--bg-alt);
    border:1px solid var(--border);
    border-radius:var(--radius);
    font-size:.8rem;
    color:var(--text-secondary);
}
.cognivm-badge:hover{
    border-color:var(--primary);
    color:#fff;
}
.cognivm-badge i{color:var(--primary-light)}

/* ===== Responsive ===== */

/* Tablet */
@media(max-width:1024px){
    .hero h1{font-size:2.5rem}
    .features-grid{grid-template-columns:repeat(2,1fr)}
    .rate-grid{grid-template-columns:repeat(2,1fr)}
    .footer-grid{grid-template-columns:1fr 1fr}
}

/* Mobile */
@media(max-width:768px){
    .hamburger{display:flex}
    .nav-menu{
        display:none;flex-direction:column;
        position:absolute;top:4rem;left:0;right:0;
        background:var(--bg);border-bottom:1px solid var(--border);
        padding:1.5rem;gap:1rem;box-shadow:var(--shadow-md);
    }
    .nav-menu.open{display:flex}

    .hero{padding:3rem 0 2.5rem}
    .hero-grid{grid-template-columns:1fr;gap:2.5rem}
    .hero h1{font-size:2.25rem}
    .hero-subtitle{font-size:1rem}
    .hero-stats{gap:1.5rem}
    .hero-stat strong{font-size:1.1rem}
    .hero-demo{order:-1}

    .section{padding:3.5rem 0}
    .section-header h2{font-size:1.75rem}

    .features-grid{grid-template-columns:1fr}
    .data-grid{grid-template-columns:1fr}
    .pricing-grid{grid-template-columns:1fr;max-width:400px}
    .rate-grid{grid-template-columns:1fr 1fr}

    .endpoint-info{gap:.5rem}
    .endpoint-info code{font-size:.75rem}
    .endpoint-desc{display:none}

    .footer-grid{grid-template-columns:1fr;gap:2rem}

    .cta-content h2{font-size:1.75rem}
}

/* Small mobile */
@media(max-width:480px){
    .container{padding:0 1rem}
    .hero h1{font-size:1.85rem}
    .hero-stats{flex-direction:column;gap:1rem}
    .hero-actions{flex-direction:column}
    .hero-actions .btn{width:100%;justify-content:center}
    .cta-actions{flex-direction:column}
    .cta-actions .btn{width:100%;justify-content:center}
    .rate-grid{grid-template-columns:1fr}
    .code-body,.code-inline{font-size:.7rem;padding:1rem}
    .param-table{font-size:.75rem}
    .param-table td{padding:.4rem .5rem}
}