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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    overflow: hidden;
    height: 100vh;
    background: #000000;
    color: #ffffff;
}

.background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    background: radial-gradient(ellipse at center, #0a0a1a 0%, #000000 100%);
}

#runicCanvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.stars {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    background-image: 
        radial-gradient(2px 2px at 20% 30%, #4a9eff, transparent),
        radial-gradient(2px 2px at 60% 70%, #4a9eff, transparent),
        radial-gradient(1px 1px at 50% 50%, #4a9eff, transparent),
        radial-gradient(1px 1px at 80% 10%, #4a9eff, transparent),
        radial-gradient(2px 2px at 90% 40%, #4a9eff, transparent),
        radial-gradient(1px 1px at 33% 60%, #4a9eff, transparent),
        radial-gradient(1px 1px at 55% 80%, #4a9eff, transparent);
    background-repeat: repeat;
    background-size: 200% 200%;
    animation: twinkle 8s ease-in-out infinite;
    opacity: 0.6;
}

@keyframes twinkle {
    0%, 100% { opacity: 0.4; }
    50% { opacity: 0.8; }
}

.container {
    position: relative;
    z-index: 10;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 2rem;
}

.logo-container {
    margin-bottom: 3rem;
    animation: float 3s ease-in-out infinite;
    filter: drop-shadow(0 0 20px rgba(74, 158, 255, 0.5));
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

.logo {
    max-width: 400px;
    width: 100%;
    height: auto;
    display: block;
}

.login-card {
    background: rgba(10, 10, 26, 0.6);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(74, 158, 255, 0.15);
    border-radius: 20px;
    padding: 2.5rem;
    width: 100%;
    max-width: 450px;
    box-shadow: 
        0 4px 16px rgba(0, 0, 0, 0.3),
        inset 0 0 20px rgba(74, 158, 255, 0.05);
}


.card-title {
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
    text-align: center;
    color: #bba06f;
    text-shadow: 0 0 5px rgba(187, 160, 111, 0.3);
    font-weight: 600;
}

.card-subtitle {
    font-size: 1rem;
    margin-bottom: 2rem;
    text-align: center;
    color: #b8b8b8;
    line-height: 1.5;
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.input-group {
    position: relative;
}

.input-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: rgba(187, 160, 111, 0.8);
    font-size: 0.9rem;
    font-weight: 500;
    text-shadow: 0 0 3px rgba(187, 160, 111, 0.2);
}

.input-group input {
    width: 100%;
    padding: 1rem;
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid rgba(74, 158, 255, 0.2);
    border-radius: 10px;
    color: #ffffff;
    font-size: 1rem;
    transition: all 0.3s ease;
    outline: none;
}

.input-group input:focus {
    border-color: rgba(74, 158, 255, 0.5);
    box-shadow: 0 0 8px rgba(74, 158, 255, 0.2);
    background: rgba(0, 0, 0, 0.5);
}

.input-group input::placeholder {
    color: rgba(255, 255, 255, 0.4);
}

.input-glow {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(74, 158, 255, 0.6), transparent);
    transition: width 0.3s ease;
    pointer-events: none;
}

.input-group input:focus ~ .input-glow {
    width: 100%;
}

.submit-btn {
    position: relative;
    padding: 1rem 2rem;
    background: linear-gradient(135deg, rgba(74, 158, 255, 0.2), rgba(74, 158, 255, 0.05));
    border: 1px solid rgba(74, 158, 255, 0.4);
    border-radius: 10px;
    color: #ffffff;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    overflow: hidden;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.submit-btn:hover {
    background: linear-gradient(135deg, rgba(74, 158, 255, 0.3), rgba(74, 158, 255, 0.15));
    border-color: rgba(74, 158, 255, 0.6);
    box-shadow: 0 0 10px rgba(74, 158, 255, 0.3);
    transform: translateY(-2px);
}

.submit-btn:active {
    transform: translateY(0);
}

.btn-text {
    position: relative;
    z-index: 2;
}

.btn-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(74, 158, 255, 0.15);
    transform: translate(-50%, -50%);
    transition: width 0.6s ease, height 0.6s ease;
}

.submit-btn:hover .btn-glow {
    width: 300px;
    height: 300px;
}

@media (max-width: 768px) {
    .logo {
        max-width: 300px;
    }
    
    .login-card {
        padding: 2rem;
    }
    
    .card-title {
        font-size: 1.5rem;
    }
}