:root {
    --kale-blue: #003366; /* Kale Grubu Kurumsal Mavi Yaklaşımı */
    --light-gray: #f4f4f9;
    --text-dark: #333;
    --accent: #d4af37; /* Gold detaylar kaliteyi artırır */
}

body { font-family: 'Inter', sans-serif; background: var(--light-gray); color: var(--text-dark); margin:0; }
.container { max-width: 1100px; margin: 0 auto; padding: 20px; }

/* Navbar */
nav { background: #fff; padding: 20px; box-shadow: 0 2px 10px rgba(0,0,0,0.05); display: flex; justify-content: space-between; align-items: center; }
.logo { font-weight: 800; font-size: 24px; color: var(--kale-blue); letter-spacing: -1px; }

/* Cards */
.card { background: #white; border-radius: 12px; padding: 25px; box-shadow: 0 10px 30px rgba(0,0,0,0.05); transition: 0.3s; cursor: pointer; border: 1px solid #eee; text-align: center; }
.card:hover { transform: translateY(-5px); border-color: var(--kale-blue); }

.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; margin-top: 30px; }

/* Upload Section */
#upload-section { margin-top: 40px; padding: 30px; background: #fff; border-radius: 15px; display: none; border: 2px dashed #ccc; }
.btn-primary { background: var(--kale-blue); color: white; padding: 12px 30px; border: none; border-radius: 5px; cursor: pointer; font-weight: 600; }
input[type="file"] { margin: 20px 0; }

/* Result Image */
#result-container img { max-width: 100%; border-radius: 10px; margin-top: 20px; box-shadow: 0 5px 15px rgba(0,0,0,0.2); }