:root {
    --primary: #004aad;
    --secondary: #c29b40;
    --dark: #002347;
    --light-bg: #f4f7f9;
    --text: #1a1a1a;
    --card-bg: #ffffff;
    --border: #eee;
    --ad-bg: #f8f9fa;
    --header-bg: #002347;
}

body.dark-mode {
    --primary: #4d94ff;
    --secondary: #d4af37;
    --dark: #0a0e14;
    --light-bg: #121212;
    --text: #e0e0e0;
    --card-bg: #1e1e1e;
    --border: #333;
    --ad-bg: #2a2a2a;
    --header-bg: #000000;
}

body { 
    font-family: 'Poppins', 'Pretendard', sans-serif; 
    margin: 0; 
    background: var(--light-bg); 
    color: var(--text); 
    line-height: 1.6; 
    transition: background 0.3s, color 0.3s;
}

.container { max-width: 1100px; margin: 0 auto; padding: 0 20px; }

/* Header */
header { 
    background: var(--header-bg); 
    color: #fff; 
    padding: 1.2rem 0; 
    position: sticky; 
    top: 0; 
    z-index: 100; 
    border-bottom: 3px solid var(--secondary); 
}

.nav-bar { display: flex; justify-content: space-between; align-items: center; }

.logo { 
    font-size: 1.8rem; 
    font-weight: 800; 
    cursor: pointer; 
    margin: 0; 
    display: flex; 
    align-items: center; 
    text-decoration: none;
    color: #fff;
}

.logo span { color: var(--secondary); }

.nav-controls {
    display: flex;
    align-items: center;
    gap: 15px;
}

nav button { 
    background: none; 
    border: none; 
    color: #fff; 
    cursor: pointer; 
    font-weight: 600; 
    font-size: 1rem; 
    transition: color 0.3s; 
}

nav button:hover { color: var(--secondary); }

.theme-toggle, .lang-select {
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.2);
    color: #fff;
    padding: 5px 10px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 0.9rem;
}

.lang-select option {
    background: #000;
    color: #fff;
}

/* Main Content */
.hero-section { 
    text-align: center; 
    padding: 60px 0; 
    background: var(--card-bg); 
    border-radius: 0 0 30px 30px; 
    box-shadow: 0 4px 15px rgba(0,0,0,0.05); 
    margin-bottom: 40px; 
}

.main-title { font-size: 2.5rem; color: var(--primary); margin-bottom: 15px; }

/* Cleat Cards */
.cleat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 30px; }
.cleat-card { 
    background: var(--card-bg); 
    border-radius: 20px; 
    overflow: hidden; 
    cursor: pointer; 
    transition: transform 0.3s, box-shadow 0.3s; 
    border: 1px solid var(--border); 
}

.cleat-card:hover { transform: translateY(-10px); box-shadow: 0 15px 35px rgba(0,0,0,0.2); }
.cleat-card img { width: 100%; height: 240px; object-fit: cover; }
.cleat-card-info { padding: 25px; }
.badge { background: var(--primary); color: #fff; padding: 4px 12px; border-radius: 6px; font-size: 0.8rem; font-weight: 700; margin-bottom: 10px; display: inline-block; }
.price { color: #e63946; font-weight: 800; font-size: 1.3rem; margin-top: 10px; }

/* Review Detail */
.review-detail { 
    background: var(--card-bg); 
    padding: 40px; 
    border-radius: 30px; 
    margin-top: 40px; 
    box-shadow: 0 10px 40px rgba(0,0,0,0.05); 
}

.review-header h1 { font-size: 2.8rem; color: var(--primary); margin: 15px 0; }
.main-image { width: 100%; border-radius: 20px; margin: 30px 0; }
.feature-list { list-style: none; padding: 0; }
.feature-list li::before { content: "🔹"; margin-right: 10px; }

.pros-cons { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin: 40px 0; }
.pros { background: rgba(56, 161, 105, 0.1); padding: 25px; border-radius: 15px; border-top: 4px solid #38a169; }
.cons { background: rgba(229, 62, 62, 0.1); padding: 25px; border-radius: 15px; border-top: 4px solid #e53e3e; }

.btn-buy { 
    display: block; 
    background: var(--primary); 
    color: #fff; 
    text-align: center; 
    padding: 20px; 
    border-radius: 15px; 
    text-decoration: none; 
    font-weight: 800; 
    font-size: 1.3rem; 
    margin-top: 40px; 
    transition: transform 0.2s; 
}

.btn-buy:hover { transform: scale(1.02); }

/* Ads */
.adsense-slot { background: var(--ad-bg); border: 1px dashed var(--border); padding: 40px; text-align: center; color: #adb5bd; margin: 40px 0; border-radius: 15px; }

/* Footer */
.main-footer { background: var(--header-bg); color: #adb5bd; padding: 60px 0 30px; margin-top: 80px; border-top: 2px solid var(--secondary); }
.footer-info h4 { color: #fff; font-size: 1.5rem; margin-bottom: 20px; }
.footer-links h5 { color: #fff; margin-bottom: 20px; }
.footer-links ul { list-style: none; padding: 0; }
.footer-links a { color: #adb5bd; text-decoration: none; line-height: 2; transition: color 0.3s; }
.footer-links a:hover { color: var(--secondary); }

@media (max-width: 768px) {
    .nav-bar { flex-direction: column; gap: 15px; }
    .review-header h1 { font-size: 2rem; }
    .pros-cons { grid-template-columns: 1fr; }
}