.hero-container {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 80vh;
    position: relative;
    overflow: hidden;
    background: radial-gradient(circle at center, rgba(22, 33, 62, 0.5) 0%, rgba(13, 17, 23, 0) 70%);
}

.cyber-circle-bg {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 600px;
    height: 600px;
    transform: translate(-50%, -50%);
    background: url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M50 5L93.3 25V75L50 95L6.7 75V25L50 5Z' fill='none' stroke='rgba(88, 166, 255, 0.1)' stroke-width='1'/%3E%3C/svg%3E");
    background-size: 100px 100px;
    mask-image: radial-gradient(circle, black 30%, transparent 70%);
    animation: rotate-slow 60s linear infinite;
    z-index: 0;
    opacity: 0.5;
}

.cyber-circle-bg::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 400px;
    height: 400px;
    transform: translate(-50%, -50%);
    border: 2px solid rgba(88, 166, 255, 0.3);
    border-radius: 50%;
    box-shadow: 0 0 50px rgba(88, 166, 255, 0.2), inset 0 0 30px rgba(88, 166, 255, 0.1);
}

.hero-content {
    text-align: center;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.welcome-text {
    font-size: 2rem;
    color: #e0e0e0;
    margin: 0;
    font-weight: 300;
    letter-spacing: 2px;
}

.mega-cyber-title {
    font-size: 5rem;
    font-weight: 900;
    margin: 0;
    line-height: 1;
    color: white;
    text-transform: uppercase;
    letter-spacing: 5px;
    position: relative;
    text-shadow: 0 0 10px rgba(0, 210, 255, 0.8), 0 0 30px rgba(0, 210, 255, 0.6), 0 0 70px rgba(0, 210, 255, 0.4);
    background: linear-gradient(to bottom, #ffffff 0%, #58a6ff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.mega-cyber-title::after {
    content: attr(data-text);
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: repeating-linear-gradient(0deg, transparent 0px, transparent 2px, rgba(88, 166, 255, 0.1) 3px, rgba(88, 166, 255, 0.1) 4px);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    z-index: -1;
}

.cyber-subtitle {
    font-size: 1.2rem;
    color: #8b949e;
    letter-spacing: 2px;
    text-shadow: 0 0 5px rgba(139, 148, 158, 0.5);
}

.cyber-start-button {
    background: linear-gradient(90deg, #1f6feb, #00d2ff);
    border: none;
    color: white;
    padding: 20px 50px;
    font-size: 1.5rem;
    font-weight: bold;
    border-radius: 4px;
    cursor: pointer;
    letter-spacing: 3px;
    display: flex;
    align-items: center;
    gap: 15px;
    position: relative;
    overflow: hidden;
    box-shadow: 0 0 30px rgba(31, 111, 235, 0.5);
    transition: all 0.3s ease;
}

.pulse-effect {
    animation: cyber-pulse 2s infinite;
}

.cyber-start-button:hover {
    transform: scale(1.05);
    box-shadow: 0 0 50px rgba(0, 210, 255, 0.8), inset 0 0 20px rgba(255, 255, 255, 0.2);
    background: linear-gradient(90deg, #00d2ff, #1f6feb);
}

.cyber-start-button:active {
    transform: scale(0.98);
}

.button-icon {
    font-size: 1.8rem;
}

.login-mode {
    background: linear-gradient(90deg, #30363d, #58a6ff);
    color: #d7d7d7;
    box-shadow: none;
    border: 1px solid #58a6ff;
}

.login-mode:hover {
    background: rgba(88, 166, 255, 0.2);
    box-shadow: 0 0 20px #58a6ff;
    color: white;
}

.hero-container .fade-in {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.8s ease-out forwards;
}

.hero-container .delay-1 {
    animation-delay: 0.2s;
}

.hero-container .delay-2 {
    animation-delay: 0.4s;
}

.hero-container .delay-3 {
    animation-delay: 0.6s;
}

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

@keyframes rotate-slow {
    from {
        transform: translate(-50%, -50%) rotate(0deg);
    }

    to {
        transform: translate(-50%, -50%) rotate(360deg);
    }
}

@keyframes cyber-pulse {
    0% {
        box-shadow: 0 0 30px rgba(31, 111, 235, 0.5);
    }

    50% {
        box-shadow: 0 0 60px rgba(0, 210, 255, 0.8), 0 0 100px rgba(0, 210, 255, 0.3);
    }

    100% {
        box-shadow: 0 0 30px rgba(31, 111, 235, 0.5);
    }
}

@media (max-width: 768px) {
    .mega-cyber-title {
        font-size: 2.5rem;
    }

    .cyber-circle-bg {
        width: 300px;
        height: 300px;
    }

    .cyber-start-button {
        padding: 15px 30px;
        font-size: 1.2rem;
    }
}

[data-theme="light"] .hero-container {
    background: transparent !important;
}

[data-theme="light"] .cyber-circle-bg {
    display: none !important;
}

[data-theme="light"] .welcome-text {
    color: white !important;
    text-shadow: 0 2px 10px rgba(0,0,0,0.3) !important;
}

[data-theme="light"] .mega-cyber-title {
    background: none !important;
    -webkit-text-fill-color: white !important;
    text-shadow: 0 0 20px rgba(255, 255, 255, 0.5) !important;
}

[data-theme="light"] .mega-cyber-title::after {
    display: none !important;
}

[data-theme="light"] .cyber-subtitle {
    color: rgba(255,255,255,0.9) !important;
    text-shadow: 0 1px 3px rgba(0,0,0,0.3) !important;
}

[data-theme="light"] .cyber-start-button {
    background: white !important;
    color: #764ba2 !important;
    border: none !important;
    border-radius: 50px !important;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1) !important;
    letter-spacing: 1px !important;
    font-weight: 800 !important;
    text-shadow: none !important;
}

[data-theme="light"] .cyber-start-button:hover {
    transform: translateY(-2px) !important;
    box-shadow: 0 6px 20px rgba(0,0,0,0.2) !important;
}

[data-theme="light"] .login-mode {
    background: rgba(255,255,255,0.3) !important;
    color: white !important;
    border: 1px solid rgba(255,255,255,0.5) !important;
    box-shadow: none !important;
}

[data-theme="light"] .login-mode:hover {
    background: rgba(255,255,255,0.5) !important;
}