:root{
  --bg:#ffffff;
  --text:#0b0f14;
  --muted:#6b7280;
  --border:#e5e7eb;
  --primary:#111827;
  --primary-contrast:#ffffff;
  --card:#f9fafb;
  --shadow:0 8px 24px rgba(0,0,0,0.06);
  --radius:16px;
  --transition:all .3s ease;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;height:100%;background:var(--bg);color:var(--text);font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,Noto Sans,sans-serif;line-height:1.6}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.container{max-width:1024px;margin:0 auto;padding:0 20px}
.header{display:flex;align-items:center;justify-content:space-between;padding:16px 0;border-bottom:1px solid var(--border);position:sticky;top:0;background:var(--bg);z-index:10}
.brand{display:flex;align-items:center;gap:12px}
.logo{width:40px;height:40px;border-radius:12px;background:var(--primary);color:var(--primary-contrast);display:flex;align-items:center;justify-content:center;font-weight:700;box-shadow:var(--shadow)}
.brand-text h1{font-size:18px;margin:0}
.brand-text p{margin:0;color:var(--muted);font-size:13px}
.header nav{display:flex;gap:16px}
.header nav a{padding:8px 12px;border-radius:10px;border:1px solid transparent;transition:var(--transition)}
.header nav a:hover{border-color:var(--border);background:#fafafa}

.hero{padding:56px 0 24px;border-bottom:1px solid var(--border)}
.hero-inner{display:grid;grid-template-columns:1.2fr .8fr;gap:28px;align-items:center}
.hero-text h2{margin:0 0 12px;font-size:36px;line-height:1.2}
.hero-text p{margin:0 0 20px;color:var(--muted)}
.hero-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:24px}
.hero-card .quote{font-weight:600;font-size:18px;margin-bottom:8px}
.hero-card .author{color:var(--muted);font-size:14px}

.section{padding:40px 0}
.section-title{margin:0 0 16px;font-size:22px}
.chips{display:flex;flex-wrap:wrap;gap:10px}
.chip{padding:8px 12px;border:1px solid var(--border);border-radius:999px;background:#fff;box-shadow:var(--shadow);font-size:14px;transition:var(--transition)}
.chip:hover{transform:translateY(-2px)}

.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:10px}
.card h4{margin:0 0 4px}
.card p{margin:0 0 10px;color:var(--muted)}

.grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-bottom:14px}
label span{display:block;margin-bottom:6px;font-size:14px;color:var(--muted)}
input,textarea{width:100%;padding:12px 14px;border:1px solid var(--border);border-radius:12px;background:#fff;outline:none;transition:var(--transition);font-size:15px}
input:focus,textarea:focus{border-color:#cbd5e1;box-shadow:0 0 0 6px rgba(59,130,246,0.06)}
textarea{resize:vertical}

.form-actions{display:flex;align-items:center;gap:12px}
.muted{color:var(--muted);font-size:14px}

.btn{display:inline-flex;align-items:center;justify-content:center;padding:12px 16px;border-radius:12px;border:1px solid var(--border);background:#fff;cursor:pointer;transition:var(--transition);font-weight:600}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:var(--primary);color:var(--primary-contrast);border-color:var(--primary)}
.btn-primary:hover{filter:brightness(0.95)}
.btn-outline{background:#fff;color:var(--primary);}
.btn[disabled]{opacity:0.6;cursor:not-allowed;transform:none}

.footer{display:flex;align-items:center;justify-content:space-between;padding:24px 0;border-top:1px solid var(--border)}

.toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%) translateY(20px);background:#111827;color:#fff;padding:12px 16px;border-radius:12px;box-shadow:var(--shadow);opacity:0;pointer-events:none;transition:var(--transition);z-index:20;max-width:90vw}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
.toast.error{background:#b91c1c}
.toast.success{background:#065f46}

@media (max-width: 900px){
  .hero-inner{grid-template-columns:1fr;gap:18px}
  .cards{grid-template-columns:1fr}
  .grid{grid-template-columns:1fr}
  .footer{flex-direction:column;gap:8px;align-items:flex-start}
}