/* ================================================
   ORTAK STILLER - EĞİTİM SİSTEMİ
   ================================================ */

/* Font Import */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700&display=swap');

/* Reset */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Poppins', sans-serif;
    min-height: 100vh;
    margin: 0;
    padding: 20px;
    background-color: #f3f4f6; /* Light gray background fallback */
}

/* Animasyonlar */
@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0) rotate(0deg);
        opacity: 0.3;
    }
    50% {
        transform: translateY(-50px) rotate(180deg);
        opacity: 0.6;
    }
}

/* Background Animation Circles */
.bg-animation {
    position: fixed;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: 0;
    overflow: hidden;
    pointer-events: none;
    background: linear-gradient(135deg, #fdfbfb 0%, #ebedee 100%);
}

.circle {
    position: absolute;
    border-radius: 50%;
    background: rgba(242, 122, 26, 0.1); /* Trendyol orange tint */
    animation: float 20s infinite;
}

.circle:nth-child(1) { width: 80px; height: 80px; top: 10%; left: 20%; animation-delay: 0s; }
.circle:nth-child(2) { width: 60px; height: 60px; top: 60%; left: 80%; animation-delay: 2s; }
.circle:nth-child(3) { width: 100px; height: 100px; top: 80%; left: 10%; animation-delay: 4s; }
.circle:nth-child(4) { width: 50px; height: 50px; top: 30%; left: 70%; animation-delay: 6s; }

/* Logo Styles */
.atlas-logo {
    width: 140px;
    height: auto;
    display: block;
    margin: 0 auto 20px;
    transition: transform 0.3s ease;
}

.atlas-logo:hover {
    transform: scale(1.05);
}

/* Container */
.container {
    position: relative;
    z-index: 1;
    background: rgba(255, 255, 255, 0.98);
    padding: 40px;
    border-radius: 30px;
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 600px;
    margin: 50px auto;
    transform: translateY(30px);
    opacity: 0;
    animation: slideUp 0.8s ease-out forwards;
    text-align: center;
}

/* Typography */
h1 {
    color: #333;
    margin-bottom: 10px;
    font-size: 24px;
    font-weight: 600;
}

.subtitle {
    color: #6b7280;
    font-size: 14px;
    margin-bottom: 40px;
    line-height: 1.5;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 16px 32px;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    font-family: 'Poppins', sans-serif;
    text-decoration: none;
    gap: 10px;
}

.btn-primary {
    background: linear-gradient(135deg, #f27a1a 0%, #e85d04 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(242, 122, 26, 0.3);
    width: 100%;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(242, 122, 26, 0.4);
}

/* Responsive */
@media (max-width: 768px) {
    .container {
        padding: 30px 20px;
        margin: 20px auto;
    }
    
    h1 {
        font-size: 20px;
    }
}