/* Temel Sıfırlamalar */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins', sans-serif;
}

/* Sayfa Temeli ve Koyu Mavi Arka Plan */
body {
    width: 100%;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
    overflow: hidden; /* Animasyonun taşmasını engellemek için */
    background-color: #050a18; /* Çok koyu teknolojik mavi */
    color: #ffffff;
}

/* Teknolojik Arka Plan Canvası */
#tech-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

/* Hafif bir cam efekti katmanı */
.bg-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, transparent 40%, rgba(0,0,0,0.25) 100%);
    z-index: 2;
    pointer-events: none;
}

/* Ana Kart (Glassmorphism Efekti) */
.portal-container {
    position: relative;
    z-index: 3; /* Canvas ve overlay'in üzerinde olmalı */
    width: 100%;
    max-width: 450px;
    background: rgba(255, 255, 255, 0.04);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 28px;
    padding: 50px 30px;
    text-align: center;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.5);
    transform: translateY(30px);
    opacity: 0;
    animation: fadeInUp 1s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes fadeInUp {
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/* Logo Alanı (Yazı kaldırıldı, sadece logo) */
.logo-area {
    margin-bottom: 35px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.logo {
    max-width: 180px; /* Logo daha belirgin */
    height: auto;
    object-fit: contain;
}

/* Yazı Alanları */
.portal-title {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 10px;
    letter-spacing: 0.5px;
    background: linear-gradient(120deg, #ffffff, #a3e635); /* Hafif yeşil-beyaz geçiş */
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.portal-subtitle {
    color: #94a3b8;
    font-size: 14px;
    margin-bottom: 40px;
    line-height: 1.6;
    font-weight: 300;
}

/* Buton Grubu ve Tasarımları */
.button-group {
    display: flex;
    flex-direction: column;
    gap: 18px;
    margin-bottom: 35px;
}

.btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 14px;
    width: 100%;
    padding: 18px;
    border-radius: 16px;
    text-decoration: none;
    font-size: 16px;
    font-weight: 600;
    color: #ffffff;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.icon {
    font-size: 20px;
}

/* 1. Buton: Teklif Paneli (Mavi/Cyan Tonu) */
.btn-primary {
    background: linear-gradient(135deg, #0ea5e9, #0284c7);
    box-shadow: 0 4px 15px rgba(14, 165, 233, 0.2);
}

/* 2. Buton: Dijital Davetiyem (Mor/Pink Tonu - Hafif donduruldu) */
.btn-secondary {
    background: linear-gradient(135deg, #a855f7, #7e22ce);
    box-shadow: 0 4px 15px rgba(168, 85, 247, 0.2);
}

/* 3. Buton: Servis Takip (Yeşil Tonu) */
.btn-tertiary {
    background: linear-gradient(135deg, #84cc16, #65a30d);
    box-shadow: 0 4px 15px rgba(132, 204, 22, 0.2);
}

/* Hover Efektleri */
.btn:hover {
    transform: translateY(-5px) scale(1.02);
    box-shadow: 0 12px 25px rgba(0, 0, 0, 0.5);
    filter: brightness(1.15);
}

.btn:active {
    transform: translateY(-2px) scale(1);
}

/* Footer Bilgisi */
.portal-footer {
    color: #475569;
    font-size: 12px;
    letter-spacing: 0.5px;
}

/* Mobil Uyumluluk (Responsive) */
@media (max-width: 480px) {
    .portal-container {
        padding: 40px 20px;
        border-radius: 24px;
    }
    
    .logo {
        max-width: 150px;
    }

    .portal-title {
        font-size: 20px;
    }
    
    .btn {
        padding: 16px;
        font-size: 15px;
    }
}