@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;500;700&display=swap');

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

:root{
    --bg:#0f0f13;
    --card:#1a1a2e;
    --card-hover:#22223a;
    --text:#e4e4e7;
    --text-muted:#a1a1aa;
    --border:rgba(255,255,255,.08);
    --accent-1:#facc15;
    --accent-2:#eab308;
    --accent-3:#ca8a04;
    --gradient:linear-gradient(135deg,var(--accent-1),var(--accent-2),var(--accent-3));
    --radius:0.75rem;
    --radius-lg:1rem;
}

body{
    font-family:'Inter',system-ui,-apple-system,sans-serif;
    background:var(--bg);
    color:var(--text);
    line-height:1.6;
    min-height:100vh;
}

.container{max-width:1100px;margin:0 auto;padding:0 1.5rem}

/* Header */
.site-header{
    border-bottom:1px solid var(--border);
    padding:1rem 0;
    background:rgba(15,15,19,.8);
    backdrop-filter:blur(12px);
    position:sticky;top:0;z-index:100;
}
.site-header .container{display:flex;align-items:center;justify-content:space-between}
.logo{display:flex;align-items:center;gap:.6rem;text-decoration:none;color:var(--text);font-weight:700;font-size:1.15rem}
.logo-icon{
    font-size:1.3rem;
    background:var(--gradient);
    -webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;
    font-weight:800;
}
nav{display:flex;gap:1.5rem}
nav a{color:var(--text-muted);text-decoration:none;font-size:.9rem;font-weight:500;transition:color .2s}
nav a:hover{color:var(--accent-1)}

/* Hero */
.hero{text-align:center;padding:3rem 0 2rem}
.hero h1{font-size:2.5rem;font-weight:800;line-height:1.15;margin-bottom:1rem;
    background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;}
.hero p{color:var(--text-muted);font-size:1.1rem;max-width:620px;margin:0 auto}

/* Card */
.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:1.5rem;margin-bottom:1.5rem}
.card:hover{border-color:rgba(255,255,255,.12)}

/* Ad slots */
.ad-slot{
    background:var(--card);border:1px solid var(--border);border-radius:var(--radius);
    min-height:90px;display:flex;align-items:center;justify-content:center;
    margin:1.5rem 0;color:var(--text-muted);font-size:.8rem;
}

/* Generator UI */
.generator-layout{display:grid;grid-template-columns:1fr 1fr;gap:1.5rem;margin-bottom:1.5rem}

.control-group{margin-bottom:1.25rem}
.control-group label{display:block;font-weight:600;font-size:.9rem;margin-bottom:.4rem;color:var(--text)}

.input-text{
    width:100%;background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);
    padding:.75rem 1rem;color:var(--text);font-family:'JetBrains Mono',monospace;font-size:1.5rem;
    text-align:center;transition:border-color .2s;
}
.input-text:focus{outline:none;border-color:var(--accent-2)}
.input-text::placeholder{color:var(--text-muted)}

.input-field{
    width:100%;background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);
    padding:.6rem .8rem;color:var(--text);font-family:'Inter',sans-serif;font-size:.9rem;transition:border-color .2s;
}
.input-field:focus{outline:none;border-color:var(--accent-2)}

select.input-field{cursor:pointer;appearance:none;
    background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%23a1a1aa' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10z'/%3E%3C/svg%3E");
    background-repeat:no-repeat;background-position:right .8rem center;padding-right:2rem;
}

.color-row{display:flex;align-items:center;gap:.75rem}
.color-picker{
    width:48px;height:38px;border:1px solid var(--border);border-radius:var(--radius);
    cursor:pointer;background:none;padding:2px;
}
.color-picker::-webkit-color-swatch-wrapper{padding:0}
.color-picker::-webkit-color-swatch{border:none;border-radius:calc(var(--radius) - 3px)}
.color-hex{flex:1}

.shape-options{display:flex;gap:.5rem}
.shape-btn{
    flex:1;padding:.55rem;border:1px solid var(--border);border-radius:var(--radius);
    background:var(--bg);color:var(--text-muted);font-size:.85rem;font-weight:500;cursor:pointer;
    text-align:center;transition:all .2s;font-family:'Inter',sans-serif;
}
.shape-btn.active{border-color:var(--accent-2);color:var(--accent-1);background:rgba(234,179,8,.08)}
.shape-btn:hover{border-color:rgba(255,255,255,.2)}

/* Preview */
.preview-section h3{font-size:1rem;font-weight:700;margin-bottom:1rem;
    background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;}
.preview-grid{display:flex;flex-wrap:wrap;gap:1.25rem;align-items:end;justify-content:center;margin-bottom:1.5rem}
.preview-item{text-align:center}
.preview-item canvas{border:1px solid var(--border);border-radius:6px;background:var(--bg);image-rendering:pixelated}
.preview-item p{font-size:.75rem;color:var(--text-muted);margin-top:.35rem}

/* Buttons */
.btn-row{display:flex;flex-wrap:wrap;gap:.75rem;margin-top:1rem}
.btn{
    padding:.65rem 1.25rem;border:none;border-radius:var(--radius);font-weight:600;
    font-size:.88rem;cursor:pointer;font-family:'Inter',sans-serif;transition:all .2s;display:inline-flex;align-items:center;gap:.4rem;
}
.btn-primary{background:var(--gradient);color:#000}
.btn-primary:hover{opacity:.9;transform:translateY(-1px)}
.btn-secondary{background:var(--bg);border:1px solid var(--border);color:var(--text)}
.btn-secondary:hover{border-color:var(--accent-2);color:var(--accent-1)}

/* Code block */
.code-block{
    background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);
    padding:1rem;font-family:'JetBrains Mono',monospace;font-size:.82rem;
    color:var(--text-muted);overflow-x:auto;white-space:pre;line-height:1.7;
    position:relative;margin-top:.75rem;
}
.code-block .btn-copy{
    position:absolute;top:.5rem;right:.5rem;padding:.35rem .7rem;font-size:.78rem;
    background:var(--card);border:1px solid var(--border);border-radius:var(--radius);
    color:var(--text-muted);cursor:pointer;font-family:'Inter',sans-serif;font-weight:500;transition:all .2s;
}
.code-block .btn-copy:hover{border-color:var(--accent-2);color:var(--accent-1)}
.code-block .btn-copy.copied{border-color:var(--accent-2);color:var(--accent-1)}

/* Content */
.content-section{margin:2rem 0}
.content-section h2{font-size:1.5rem;font-weight:800;margin-bottom:1rem;
    background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;}
.content-section h3{font-size:1.1rem;font-weight:700;margin:1.25rem 0 .5rem;color:var(--text)}
.content-section p{color:var(--text-muted);margin-bottom:.75rem;line-height:1.7}
.content-section ul{color:var(--text-muted);margin-left:1.25rem;margin-bottom:.75rem}
.content-section li{margin-bottom:.35rem}

/* Footer */
.site-footer{border-top:1px solid var(--border);padding:2rem 0;margin-top:3rem}
.site-footer .container{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:1rem}
.site-footer p{color:var(--text-muted);font-size:.85rem}
.site-footer nav{display:flex;gap:1.25rem}
.site-footer nav a{color:var(--text-muted);text-decoration:none;font-size:.85rem;transition:color .2s}
.site-footer nav a:hover{color:var(--accent-1)}

/* Utility */
.hidden{display:none!important}

/* Responsive */
@media(max-width:768px){
    .hero h1{font-size:1.75rem}
    .generator-layout{grid-template-columns:1fr}
    .site-header .container{flex-wrap:wrap;gap:.75rem}
    nav{gap:1rem}
    .btn-row{flex-direction:column}
    .btn{width:100%;justify-content:center}
}