* { margin: 0; padding: 0; box-sizing: border-box; }
:root { --primary: #667eea; --secondary: #764ba2; --dark: #1e293b; --light: #f8fafc; }
body { font-family: -apple-system, sans-serif; line-height: 1.6; color: var(--dark); }
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
header { background: white; box-shadow: 0 2px 10px rgba(0,0,0,0.1); padding: 1rem 0; position: sticky; top: 0; z-index: 100; }
nav { display: flex; justify-content: space-between; align-items: center; }
.logo { font-size: 1.5rem; font-weight: 700; background: linear-gradient(135deg, var(--primary), var(--secondary)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; text-decoration: none; }
.nav-links { display: flex; gap: 2rem; list-style: none; }
.nav-links a { text-decoration: none; color: var(--dark); }
.hero { background: linear-gradient(135deg, var(--primary), var(--secondary)); color: white; padding: 100px 20px; text-align: center; }
.hero h1 { font-size: 3rem; margin-bottom: 1rem; }
.hero-buttons { display: flex; gap: 1rem; justify-content: center; margin-top: 2rem; }
.btn-primary { background: white; color: var(--primary); padding: 1rem 2rem; border-radius: 50px; text-decoration: none; font-weight: 600; border: none; cursor: pointer; }
.btn-secondary { background: transparent; color: white; padding: 1rem 2rem; border: 2px solid white; border-radius: 50px; text-decoration: none; font-weight: 600; }
.features { padding: 80px 20px; background: var(--light); }
.features h2 { text-align: center; font-size: 2.5rem; margin-bottom: 3rem; }
.features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 2rem; }
.feature-card { background: white; padding: 2rem; border-radius: 15px; text-align: center; box-shadow: 0 5px 20px rgba(0,0,0,0.08); }
.feature-icon { font-size: 3rem; margin-bottom: 1rem; }
.products-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 2rem; padding: 40px 20px; }
.product-card { background: white; padding: 2rem; border-radius: 15px; box-shadow: 0 5px 20px rgba(0,0,0,0.08); text-align: center; }
.price { font-size: 2rem; font-weight: 700; color: var(--primary); margin: 1rem 0; }
.auth-section { padding: 100px 20px; background: var(--light); min-height: 100vh; display: flex; align-items: center; }
.auth-box { background: white; padding: 3rem; border-radius: 20px; max-width: 500px; margin: 0 auto; box-shadow: 0 10px 40px rgba(0,0,0,0.1); }
.auth-box h1 { margin-bottom: 2rem; text-align: center; }
.form-group { margin-bottom: 1.5rem; }
.form-group label { display: block; margin-bottom: 0.5rem; font-weight: 600; }
.form-group input { width: 100%; padding: 0.75rem 1rem; border: 2px solid #e9ecef; border-radius: 8px; font-size: 1rem; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.full-width { width: 100%; }
footer { background: var(--dark); color: white; padding: 2rem 0; text-align: center; margin-top: 4rem; }
.admin-container { max-width: 1200px; margin: 0 auto; padding: 40px 20px; }
.admin-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 2rem; margin: 2rem 0; }
.stat-card { background: white; padding: 2rem; border-radius: 15px; box-shadow: 0 3px 15px rgba(0,0,0,0.08); }
.stat-value { font-size: 2.5rem; font-weight: 700; color: var(--primary); margin-top: 0.5rem; }