body {
    background: #0d0d0d;
    color: #e0e0e0;
    font-family: 'Segoe UI', Arial, sans-serif;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100vh;
    margin: 0;
    overflow: hidden;
}

body::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(ellipse at 20% 80%, rgba(255, 152, 0, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(255, 87, 34, 0.06) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 50%, rgba(30, 30, 30, 1) 0%, #0d0d0d 100%);
    z-index: -1;
}

.login-container {
    animation: fadeIn 0.8s ease-out;
}

.login-box {
    background: linear-gradient(145deg, #1a1a1a, #141414);
    padding: 2.5rem 2rem;
    border-radius: 16px;
    width: 340px;
    box-shadow: 
        0 20px 60px rgba(0, 0, 0, 0.5),
        0 0 0 1px rgba(255, 152, 0, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
}

.login-header {
    text-align: center;
    margin-bottom: 2rem;
}

.login-header .logo {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #ff9800, #ff5722);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    box-shadow: 0 4px 20px rgba(255, 152, 0, 0.3);
    animation: pulse 2s ease-in-out infinite;
}

.login-header .logo span {
    font-size: 1.8rem;
    font-weight: bold;
    color: #fff;
}

.title {
    text-align: center;
    margin: 0;
    font-size: 1.1rem;
    color: #888;
    letter-spacing: 2px;
    text-transform: uppercase;
    font-weight: 500;
}

.form-group {
    margin-bottom: 1.25rem;
    position: relative;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.85rem;
    color: #aaa;
    font-weight: 500;
    letter-spacing: 0.5px;
    transition: color 0.3s ease;
}

.form-group input {
    width: 100%;
    padding: 0.875rem 1rem;
    background: #0a0a0a;
    border: 1px solid #2a2a2a;
    border-radius: 8px;
    color: #e0e0e0;
    font-size: 1rem;
    transition: all 0.3s ease;
    box-sizing: border-box;
}

.form-group input:focus {
    outline: none;
    border-color: #ff9800;
    box-shadow: 0 0 0 3px rgba(255, 152, 0, 0.15);
}

.form-group input::placeholder {
    color: #555;
}

button {
    width: 100%;
    padding: 1rem;
    background: linear-gradient(135deg, #ff9800, #ff5722);
    border: none;
    border-radius: 8px;
    color: #fff;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-top: 0.5rem;
}

button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(255, 152, 0, 0.4);
}

button:active {
    transform: translateY(0);
}

.alert {
    background: rgba(183, 28, 28, 0.9);
    color: #fff;
    padding: 0.875rem;
    margin-top: 1.25rem;
    border-radius: 8px;
    text-align: center;
    font-size: 0.9rem;
    animation: shake 0.5s ease-in-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {
    0%, 100% {
        box-shadow: 0 4px 20px rgba(255, 152, 0, 0.3);
    }
    50% {
        box-shadow: 0 4px 30px rgba(255, 152, 0, 0.5);
    }
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}