/* =======================================
   GENEL SIFIRLAMA VE FONT
======================================= */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-color: #0d0d0d;
    color: #f0f0f0;
    font-family: 'Roboto Mono', monospace;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    overflow: hidden;
    position: relative;
    background: radial-gradient(circle at center, #1a1a1a 0%, #0d0d0d 80%);
}

/* =======================================
   ARKA PLAN ANİMASYONU
======================================= */
body::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    z-index: 1;
    background: linear-gradient(180deg, rgba(255,255,255,0.05) 1px, transparent 1px);
    background-size: 100% 50px;
    animation: scan-lines 100s linear infinite;
}
@keyframes scan-lines {
    to { background-position: 0 5000px; }
}

/* =======================================
   KONTEYNER
======================================= */
.container {
    padding: 30px;
    max-width: 700px;
    z-index: 2;
    text-align: left;
}

/* =======================================
   SYSTEM OFFLINE BAŞLIK
======================================= */
.status-code {
    font-size: 5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
    letter-spacing: 5px;
    color: #444;
    text-shadow:
        0 0 5px rgba(255,165,0,0.1),
        0 0 10px rgba(255,165,0,0.1);
    animation: dim-flicker 15s infinite alternate ease-in-out;
}
@keyframes dim-flicker {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.95; }
}

/* =======================================
   ANA MESAJ
======================================= */
.main-message {
    font-size: 1.5rem;
    font-weight: 400;
    letter-spacing: 3px;
    margin-bottom: 30px;
    color: #aaaaaa;
}

/* =======================================
   AÇIKLAMA METNİ
======================================= */
.description {
    font-size: 1rem;
    font-weight: 300;
    line-height: 1.6;
    color: #777777;
    margin-bottom: 40px;
}

/* =======================================
   BİLGİ KUTUSU
======================================= */
.info-box {
    display: inline-block;
    padding: 10px 20px;
    border: 1px solid #ffaa00;
    background-color: #1a1a1a;
    border-radius: 3px;
    animation: pulse 2s infinite ease-in-out;
}
.info-label {
    color: #ffaa00;
    font-weight: 700;
    margin-right: 10px;
}
.info-time {
    color: #f0f0f0;
    font-weight: 400;
}
@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(255,170,0,0.4); }
    70% { box-shadow: 0 0 0 10px rgba(255,170,0,0); }
    100% { box-shadow: 0 0 0 0 rgba(255,170,0,0); }
}

/* =======================================
   KUTU BUTONLARI
======================================= */
.btn-group {
    margin-top: 40px;
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.btn-group .btn {
    display: inline-block;
    padding: 14px 30px;
    background-color: rgba(255, 255, 255, 0.05);
    color: #f0f0f0;
    font-weight: 700;
    text-decoration: none;
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    transition: all 0.35s ease;
    text-align: center;
    backdrop-filter: blur(6px);
    letter-spacing: 1px;
    position: relative;
}

/* Hover efekti – kutu kenarları ve yazı rengi değişir */
.btn-group .btn:hover {
    color: #00b4d8;
    border-color: #00b4d8;
    box-shadow: 0 0 15px rgba(0, 180, 216, 0.5);
    transform: translateY(-4px);
}

/* Hover’da ışık geçiş animasyonu efekti */
.btn-group .btn::before {
    content: '';
    position: absolute;
    top: 0; left: -75%;
    width: 50%; height: 100%;
    background: linear-gradient(120deg, transparent, rgba(0,180,216,0.3), transparent);
    transition: all 0.4s ease;
    opacity: 0;
}
.btn-group .btn:hover::before {
    left: 125%;
    opacity: 1;
}

/* =======================================
   DUYARLI TASARIM
======================================= */
@media (max-width: 600px) {
    .container {
        text-align: center;
    }
    .status-code {
        font-size: 3rem;
    }
    .main-message {
        font-size: 1.2rem;
    }
    .btn-group {
        justify-content: center;
    }
}